phd, preng, mieee · a summary of students and their research projects is presented in appendix a....

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CURRICULUM VITAE

TRUDI-HELEEN JOUBERT

PhD, PrEng, MIEEE

June2014

CONTACT DETAILS

Postal address PO Box 74003

Lynnwood Ridge

0040

Home address 110A Ashton Street

Lynnwood Manor

0081

Cell phone number 082 449 6209

e-mail address [email protected]

PERSONAL DETAILS

ID number 640903 0106 089

Date of birth 3 September 1964

Citizenship Republic of South Africa

Language proficiency English, Afrikaans

GENERAL

Dr. Trudi-Heleen Joubert is registered as a professional engineer with the Engineering

Council of South Africa (ECSA), and has been active in integrated circuit design since

1987. She holds a PhD in Electronic Engineering from the University of Pretoria, and her

core pursuit is CMOS and BiCMOS mixed signal circuit design, mainly (but not

exclusively) in readout and signal processing for imaging arrays, biologically inspired

electronic circuit applications, and specialized devices for analog IC design. The most

recent endeavour in this field is paper-based printed electronics biosensors at the Material

Science and Manufacturing unit of the CSIR. Prior to the CSIR, she consulted to industry

through a closed corporation Solid State Technology (SST), and even earlier was

employed as an Associate Professor at the Department of Electrical, Electronics and

Computer Engineering at the University of Pretoria. The contributions of her work to the

mailto:[email protected]

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South African innovation system spans university teaching, applied research ,and leading

industrial development of prototypes and products. She has published 10 journal papers,

presented and co-authored 23peer-reviewed conference papers, and supervised several

graduate students, while also acting as external examiner for the University of Pretoria

and the Cape Peninsula University of Technology. She has lectured 10 short courses to

industry in her field of specialization, worked on 27 projects for the South African industry,

writing 122 technical reports in the process, and contributing to 30 integrated circuits.

EDUCATION

1982 High School: Monument Hoërskool, Krugersdorp

Matriculated with 7 subject distinctions:

Afrikaans, English, German, Mathematics, Natural Science,

Biology, Computer Science.

1983 - 1986 BEng (Electronics) (with distinction)

Department of Electrical, Electronic and Computer Engineering,

University of Pretoria, South Africa

1987 – 1989 MEng (Electronics) (with distinction)



Post-graduate modules included:

Biosystems, Microcircuit design (Distinction), Microelectronic

components, Microelectronic subsystems (Distinction),

Advanced microelectronics (Distinction)

Study leader: Prof M du Plessis

Thesis: CMOS single-chip integration of analog and digital

functions (Distinction)

1990 - 1996 PhD (Electronic Engineering)



Supervisor: Prof M du Plessis

Dissertation: An analog CMOS configurable and programmable

neural network

1998 Post-graduate modules in MEd(Computer-Aided Education):

- Research methodology 710& 720 (Exempted)

- Evaluation of Programmes and Learning 880 (Distinction)

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EMPLOYMENT HISTORY

1987 - 1989 Lecturer and independent Consultant 1



1990 - 1993 Senior Lecturer and independent Consultant



1993 - 1996 Senior Lecturer



Consultant (member of closed corporation)

Solid State Technology (SST), Pretoria, South Africa

1997 - 2000 Associate Professor



Consultant (member of closed corporation)


2001 - now Consultant (member of closed corporation & independent)


2004 – 2012

(ad hoc)

Part-time Consultant

University of Pretoria: Research on aspects of silicon Light-

Emitting Diodes (initially as a DST Innovation Fund Technology

Mission project “SiLED”, since 2008 as “INSiAVA Pty Ltd”).

Feb - May2012

July - Nov 2012

Temporary Part-time Senior Lecturer



2013 - 2014 Senior Research/Application/Development Engineer

MMM of the MSM Operating Unit, CSIR, Pretoria, South Africa

1 Permission for private practice may be conceded to lecturers in the Faculty of Engineering at the University of Pretoria, and since 1991

she has been consulting to the South African industry.

4

2015 - now Senior Lecturer



AWARDS

1983 University of Pretoria academic achievement bursary

1986 Finalist in the final year Project competition in the Department of

Electrical and Electronic Engineering, University of Pretoria

1987 University of Pretoria academic honorary colours for BEng

degree with distinction

1989 University of Pretoria academic honorary colours for MEng

degree with distinction

1996 University of Pretoria academic honorary coloursf or PhD degree

1990 Award for best student paper for “VLSI Implementation of Neural

Networks” at the 1990 South African Workshop on Pattern

Recognition, WITS, Nov.1990.

1998 Award for best “Float” website in the UP MEd(CAE) Virtual Rag

Procession with Microsoft FrontPage software as prize.

1999 Received a Y-rating as a young researcher from the South

African National Research Foundation (NRF).

2000 Recipient of mentor grant in the MELLON FOUNDATION

MENTORING PROGRAMME at the University of Pretoria

(Student: JF Schoeman).

2003 Received the Technical Achievement of the Year Award from

Kentron for outstanding technical performance.

Professional registration and associations

1996 - now Registered as Professional Engineer (PrEng) with the

Engineering Council of South Africa (ECSA)

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1989 - 2003,

2012 - now

Member of the global Institute for Electrical and Electronics

Engineers (IEEE)

PROFESSIONAL EXPERIENCE

This section contains detail under the following headings:

1.1 Teaching

Key activities: Teaching of undergraduate courses

Leading final year Project students

Teaching of post-graduate courses

Supervision and guidance of Masters degree students

Supervision and guidance of PhD degree students

Lecturing of continued-education courses

Course design on undergraduate, post-graduate and

continued education level

Instructional design for courses

1.2 Research

Key activities: Scientific investigation and research

Supervision and guidance of post-graduate students

Sourcing and administrating research CAD tools

Initiation of Multi-Wafer Project program and liaison with

foundries

Project planning, budgeting, administrative responsibility

Research laboratory facility preparation

Obtaining and administrating research funds

Presenting research results at conferences

Publishing journal articles and conference proceedings

Involved in patenting research outcomes

Refereeing journal articles, research proposals and projects

Acting as session chair at conferences

Serving on conference technical committees

1.3 Consultation to industry

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Key activities: Technical advising of customers

Scientific investigation and applied research

Development of integrated circuit prototypes, technology

demonstrators and small-scale products.

Design of microelectronic devices, circuits and systems:

analog circuit design, digital standard cell library design, circuit

simulation, VHDL and Verilog logic simulation, mixed-signal

system design, layout design, circuit extraction, layout

verification, IC testing (including custom test hardware), IC

analysis, feasibility studies and technical audits.

Liaison with foundries

Project planning, budgeting, administrative responsibility

Technical management of projects

1.4 Leadership

Key activities: Management and administrative responsibility on university

department, faculty and university level

Serving on the organizing committee of technical meetings and

national conferences

Serving on a national consortium Project Steering Committee

for the development of a strategic technology demonstrator

1.5 Community service

Key activities: Lecturing and reconstructing enrichment Electronics at the

Pretoria Centre for highly gifted children

Acting as external examiner for undergraduate and post-

graduate courses

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1.1 Teaching

1.1.1 Undergraduate teaching at the University of Pretoria

Taught courses in:

1987 Telecommunications

(3rd year service subject to Electrical Engineering students)

1988 Computers(2nd year)

1989 – 1999 Analog electronics (3rd year) – reconstructed

1990 – 1997 Microelectronics (4th year elective) – developed

1996 Electronic components practical (2nd year)

1998 - 2000

2012

2015

Electronic systems design (3rd& 4th year) - reconstructed

Digital Systems (2nd year)

Analog electronics (3rd year)

Study leader for final year projects in Electronics and Microelectronics:

1987 - 2000 On average 5 students per year.

Students are consistently finalists in the departmental project

competition.

Three students received the SAMES Award for best

Microelectronics project (awarded since 1995).

Assisted undergraduate students to produce research outputs

in conference proceedings and peer-reviewed journals.

2012

2014

2015

One student.

Co-leader for one student.

Three students.

1.1.2 Post-graduate teaching at the University of Pretoria

Taught post-graduate courses in:

1998 - 2000 Integrated Digital Design - redesigned

(This course grew to attendance by 20 students in 2000)

2001, 2003 - 2005 Integrated Digital Design (renamed Digital Electronics Design)

as a guest lecturer

2012

2015

Communication Electronics

Analog Electronics Design

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Supervised master’s degree students:

1996 - 2000 Two students completed their Master’s degrees.

One student started his research project under her supervision,

and completed his studies in 2001 under the supervision of

Prof M du Plessis.

Recruited six more, who started their studies, but did not

complete their degrees after assuming positions in industry.

Helped post-graduate students to produce research outputs in

conference proceedings and peer-reviewed journals.

A summary of students and their research projects is

presented in Appendix A.

Supervised one PhD student in his research:

1999 - 2000 JF Schoeman (part time) with Prof Joubert as sole supervisor.

Project: A Method for non-volatile data storage using avalanche

degradation”.

- Recipient of a student grant in the MELLON FOUNDATION

MENTORING PROGRAMME at the University of Pretoria in

2000, with Prof Joubert as recipient of a mentor grant.

- After Prof Joubert left the University of Pretoria, the student

continued under the supervision of Prof M du Plessis.

- A summary of students and their research projects is

presented in Appendix A.

- Co-holder of South African Provisional Patent: "A Method

for Non-Volatile Data Storage Using Avalanche

Degradation", J. F. Schoeman, T.-H. Joubert, March 1999.

1.1.3 Continued education course teaching

Developed and presented ten short courses for continued education:

Sep 1989

and

Aug 1990

“Semiconductor Fundamentals” module for introductory

photonics short course at the University of Pretoria.

Presented in co-operation with LGI at University of Pretoria.

Sep 1989 “Semiconductor Fundamentals” module for advanced photonics

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and

Aug 1990

short course at the University of Pretoria.


April 1990

and

May 1991

“Bipolar and field effect transistors” module for electronic

subsystem design short course at the University of Pretoria.


June 1991 “Bipolar and field effect transistors” module for electronic

subsystem design short course at the Overberg test site in the

Western Cape.


June 1991 “Operational - and Instrumentation amplifiers” module for

electronic subsystem design short course at the Overberg test

site in the Western Cape.


April 1993 “Analog CMOS design” short course at Kentron in Pretoria.

June 1999 “Digital Electronics for Computers” short course at the University

of Pretoria.


1.1.4 Teaching innovation

1989 - 2000 Developed several courses, including the practical work.

Involved in instructional design for engineering education.

Made two conference contributions in this field.

1997 Post-graduate telematic distance learning pilot project between

University of Pretoria and Kentron, Pretoria.

1998 - 2000 Early adopter of web-based learning (WebCT virtual classrooms

at UP).

1999 -2000 Introduces co-operative group learning in her classes at UP.

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2000 Redevelop undergraduate curriculum for Electronics and

Microelectronics. Program head for Electronic Engineering

responsible for curriculum development, instructional design and

evolution of program evaluation systems (for SAQA registration

of programmes).

2012 Redevelop undergraduate curriculum for Electronics and

Microelectronics.

1.2 Research

1989 -2000 Researcher in the Carl and Emily Fuchs Institute for

Microelectronics (CEFIM) at UP, specializing in mixed signal

CMOS design. Sources and administrates the integrated circuit

design software for use in a research environment. Initiates

participation in the Europractice Multi-Project-Wafer

programme at IMEC in Europe. The research group co-

operates with the following international partners:

- Philips Research and Philips Semiconductors, Eindhoven,

Netherlands

- University of Delft, Netherlands

- University of Twente, Netherlands

- National University of Science and Technology (NUST),

Bulawayo, Zimbabwe

- Centre Suisse de Electronique et Microelectronique

(CSEM), Lausanne, Switzerland

- Institute of Microelectronics, Tsinghua University, Beijing,

China

Involved with the pattern recognition research group in the

Department of Electrical, Electronic and Computer

Engineering, University of Pretoria, through research in neural

networks.

Involved in research on improving engineering education.

1991 - 1992 Two research contracts with MIKOMTEK of the South African

CSIR, mainly as a source of funding for postgraduate students:

- “Parallelization of SPICE”

- “Layout system for custom analog circuits”.

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1999 Received a Y-rating as a young researcher from the NRF.

2000 Recipient of mentor grant in the MELLON FOUNDATION

MENTORING PROGRAMME at the University of Pretoria, with

Mr JF Schoeman as PhD-student for the research project “A

Method for Non-Volatile Data Storage Using Avalanche

Degradation”.

2004 – now

(ad hoc)

Contract research for University of Pretoria on aspects of silicon

Light-Emitting Diodes(initially as a DST Innovation Fund

Technology Mission project “SiLED”, now as “INSiAVA Pty Ltd”).

2012 Implement the facility preparation phase of the management plan

for the CEFIM Wafer Probing Station for mm-Wave applications,

bought with an National Research Foundation (NRF) grant under

the Research Infrastructure Support Programme (RISP) and with

Prof.Saurabh Sinha as grantholder.

2013 - now Directed research in the Department of Mechatronics and

Micromanufacturing in Materials Science and Manufacturing,

CSIR. The main theme is electronic readout for biosensors, with

activities in:

- E.coli immunosensor for waste water.

- Gas sensing for breath health monitoring

- Paper-based printed electronics biosensors

1.2.1 Publications

1989 - now A list of publications is presented in Annexure B.

Author or co-author of:

- 10 peer-reviewed journal articles (3 South African, 5

international)

- 22 peer-reviewed conference proceedings (19 in South

Africa of which 16 were international conferences, 3

internationally)

- 1 article in the popular press

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Made 4 additional conference presentations, where no article

was submitted for publication.

1.2.2 Patents

As co-patentholder

1999 "A Method for Non-Volatile Data Storage Using Avalanche

Degradation", J. F. Schoeman and T.-H. Joubert, South African

Provisional Patent, March 1999.

As co-inventor

1996 "Active bootstrapped gain enhancement technique", ESeevinck,

M du Plessis, European Application 96201414.8, 22 May 1996.

Bought by Philips Electronics NV, Eindhoven, Netherlands, 23

January 1997.

1996 "Low-voltage CMOS bias circuit", European Application

96201415.5, 22 May 1996. Bought by Philips Electronics NV,

Eindhoven, Netherlands, 23 January 1997.

1.2.3 Referee and review

1995 Paper for the IEEE Transactions on Neural Networks journal.

1998 Papers for The South African Computer Journal of the Computer

Society of South Africa and the South African Institute of

Computer Scientists and Information Technologists.

1995 - 2000 Papers for the Electronics Letters journal of the UK-based

Institute of Electrical Engineers (since 2006 renamed the

Institution of Engineering and Technology).

2006 – 2009 Technical review of research project for the Innovation Fund.

2007 Technical review of research proposal for the NRF.

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1.2.4 Conference technical committee

2009 Technical reviewer for the South African Conference on Semi

and Superconductor Technology, Stellenbosch, South Africa,

April 2009.

2009 Technical reviewer for the 1st South African Conference on

Sensors, MEMS and Electro-optical Systems, Skukuza, Kruger

National Park, South Africa, September 2009.

2011 Technical reviewer for the 2nd South African Conference on

Sensors, MEMS and Electro-optical Systems, Berg-en-Dal,

Kruger National Park, South Africa, September 2011.

2013 Technical reviewer for the SPIE proceedings of 3nd South African

Conference on Sensors, MEMS and Electro-optical Systems,

Skukuza, Kruger National Park, South Africa, March 2014.

1.2.5 Session chair at conferences

1999 “Electronic Devices” Session, Africon '99, Cape Town, South

Africa, Sept 1999.

2009 “HF Microelectronics” Session, South African Conference on

Semi and Superconductor Technology, Stellenbosch, South

Africa, April 2009.

2009 “Device Design” Session, 1st South African Conference on

Sensors, MEMS and Electro-optical Systems, Skukuza, Kruger

National Park, South Africa,September 2009.

2011 “Novel device applications” Session, 2nd South African


Berg-en-Dal, Kruger National Park, South Africa, September

2011.

2014 “Materials and physical phenomena” and “Poster” Sessions, 3nd

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South African Conference on Sensors, MEMS and Electro-

optical Systems, Skukuza, Kruger National Park, South Africa,

March 2014.

1.3 Consultation to industry

1991 - 1993 Consults independently2:

4 projects - A list of projects is presented in Annexure C.

4 reports - A list of reports is presented in Annexure D.

1 chip

Her contribution ranges from approximately 50% to 100%.

40% Studies, 40% IC design, 20% chip design

Field and client:

- Development of IC CAD tools: MIKOMTEK

- Software security IC: Nanoteq

- CMOS array readout circuit: SST

- Pad ring integrated circuit: Kentron

1993 - now Since August 1993 she consults as member of the closed

corporation Solid State Technology (SST), full time since 2001:

19 projects - A list of projects is presented in Annexure C.


22 chips (including the top level chip integration)


14% studies, 2% process design, 4% device design, 9% IC

design, 69% chip design, 2% test hardware implementation

Field and client:

- Staring array readout: CSIR

- ZapRAM: Nanoteq

- Equalizer technology: LGI

- CMOS-compatible bolometer sensors: Kentron

- A/D converter: Azoteq

- CMOS light sensor: Azoteq

2Permission for private practice may be conceded to lecturers in the Faculty of Engineering at the University of Pretoria, and since 1991

she has been consulting to the South African industry.

15

- Si PiN detectors: Kentron

- Bandgap reference: Azoteq

- Smart optical sensor imager: Avitronics

- Synchronous detector: Denel Aerospace Systems

- CMOS 50-channel linear imager readout and signal

processor: Eloptro / Kentron

- CMOS 120-channel imager focal plane processor: Eloptro

- CMOS 288X4 TDI imager focal plane processor: Elotpro

- Si PiN quadrant detector and wideband BiCMOS signal

processor: Kentron

Received Kentron Technical Achievement of the Year Award

- Digital standard cell library development: Kentron

- CMOS 288X384 imager readout and signal processor:

Kentron / Denel Aerospace Systems

- Design and development of FPGA-based test hardware:

DETEK

- Technical audit of Hall effect sensor and signal processor:

SAMES

- Uncooled MEMS IR sensor array: AMTS / TIA

She serves on the Steering Committee of the Consortium for

this project

- Design of SECRET integrated circuit chip: Ciphertec

2004 - 2012 Research consultation(independently to UP/INSiAVA Pty(Ltd)):

1 project - A list of projects is presented in Annexure C.


6 chips


50% Research, 30% IC design, 20% chip design

Field and client:

- Si LED receiver transimpedance amplifiers: UP

- Si LED receiver signal processing and drivers: UP

- Si LED receiver detector structures: UP

- Investigation into INSiAVA Patent Citing: INSiAVA

- 2D bar codes for INSiAVA LED's: INSiAVA

- INSiAVA LED microdisplay control circuits: INSiAVA

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1.4 Leadership

1.4.1 At Departmental level at the Department of Electrical, Electronic and Computer Engineering, University ofPretoria

1989- 1997 Member of the marketing committee (to prospective students)

1992 - 2000 Function head responsible for design competitions

1988 - 2000 Function head responsible for academic liaison (with students)

2000 Program head for Electronic Engineering, responsible for

curriculum development, instructional design and evolution of

program evaluation systems (when SAQA registration of

programmes was important).

2000 Acting Group head: Electronics and Microelectronics

1.4.2 At Faculty level in the Faculty of Engineering, University of Pretoria

1999 Member of the Academic Programme Committee

1992 - 2000 Chair of the committee for teaching methods

1.4.3 At Inter-disciplinary level at the University of Pretoria

1992 - 2000 Member of the coordinating committee for telematic teaching as

representative for the Faculty of Engineering

1.4.4 Conference programme committee

1996 Coordinated a CEFIM Prestige Tutorial in low voltage, low power

integrated circuits held in October 1996. She obtained funding to

cover the short course from local industry. The distinguished

guest lecturer was Prof Eric A Vittoz from the Centre Suisse de

Electronique et Microelectronique (CSEM) in Lausanne,

Switzerland. Both Prof Vittoz and CSEM are famous for work in

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low voltage, low power circuits relating to electronic watches.

2009 Member of organizing committee for the 1st South African


Skukuza, Kruger National Park, South Africa, September 2009.

2011 Member of organizing committee for the 2nd South African


Berg-en-Dal, Kruger National Park, South Africa, September

2011.

2014 Member of organizing committee for the 3nd South African


Skukuza, Kruger National Park, South Africa, March 2014.

1.4.5 In industry

2008 - 2013 Serves on the Steering Committee of the national Consortium for

the Un-cooled MEMS IR Sensor Project under the auspices of

the (now) Technology Innovation Agency of the Department of

Science and Technology.

2010 - now Serves on the Steering Committee that applied to the

Department of Science and Technology for the formation of a

National Centre of Competence in Microsystems. This

application has received approval in principle from the DST.

1.5 Community Service

1987 - 1988 Lectures enrichment Electronics at the Pretoria Centre for highly

gifted children, where she was also consultant for reconstructing

the course.

2001 - 2014 External examination for undergraduate and graduate courses in

Electronics and Microelectronics at the University of Pretoria:

Final year Project

Electronic Systems (4th year module)

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Specialization (final year module)

Analog Electronics Design (post-graduate course)

Communication Electronics (post-graduate course

Digital Electronics Design (post-graduate course)

2013 Examiner for a Master’s degree dissertation at UP:

Candidate: Mr J Venter

Supervisor: Prof S Sinha

Title: Dynamic Range and Sensitivity Improvement of Infrared

Detectors Using BiCMOS Technology

2013 Examiner for a Master’s degree dissertation at CPUT:

Candidate: Mr KS Luke

Supervisor: Prof O Philander

Title: Design and sensitivity analysis of an un-cooled infra-red

sensor

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CONTACTABLE REFEREES (GENERAL)

Prof. Monuko du Plessis

Microelectronics Professor

CEFIM3

University of Pretoria

Postal address: Department of Electrical, Electronic and

Computer Engineering, University of Pretoria

Contact numbers: 012 420 2952, 083 453 4381

E-mail: [email protected]

Dr. Christo Schutte

CEO of DETEK,

Denel Aviation Systems

Postal address: PO Box 7412, Centurion, 0046

Contact numbers: 012 349 1966, 082 882 7389


Dr. Gideon Kuhn

CEO of Ciphertec

Postal address: PO Box 36538, Menlo Park, 0102

Contact number: 083 526 0350


PEER REVIEWERS (ACADEMIC AND RESEARCH)

Prof. Monuko du Plessis

DEng, PrEng

Microelectronics Professor

CEFIM, UP

Postal address: Department of Electrical, Electronic and

Computer Engineering, University of Pretoria

Contact numbers: 012 420 2952, 083 453 4381


Prof. Willem Perold

PhD(Eng), PrEng

Electronics Professor

Departmental Chair, SU

Postal address: Department of Electrical & Electronic

Engineering, Stellenbosch University

Contact number: 021 808 4368


Dr. Pieter Rademeyer

DSc Eng, PrEng

Consultant to INSiAVA

Postal address: PO Box

Contact number: 072 2105044


3Carl and Emily Fuchs Institute of Microelectronics, University of Pretoria







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Annexure A: Post-graduate student supervision

Master’s degree students

1996 -1998 JF Schoeman (part time) with Prof Joubert as sole supervisor.

Thesis: “A CMOS operational amplifier with a capacitively

coupled floating gate input stage ".

Completed cum laude in August 1998.

1997 -1998 JC du Toit (full /part time) with Prof Joubert as sole supervisor.

Thesis: “A Fast Cryptographic Library for an Embedded

Microprocessor".

Completed cum laude in January 1998.

2000 SJ De Beer (full time) with Prof Joubert as sole supervisor until

she resigned at the end of 2000.

Thesis: “Reduced-area SRAM system based on a 4T CMOS

SRAM cell”, Completed cum laude in 2001 under supervision of

Prof M du Plessis.

Students recruited who started Master’s degree research, but did not completeafter

assuming positions in industry:

1991 - 1992 EC McGee, Bio-engineering integrated circuit

1991 - 1992 PJ van Vuren, Neural network number recognition

1996 D Engelbrecht, DCVSL CMOS circuits

1997 AC Greyling, Low supply voltage CMOS

1998 B Geden, “Analog CMOS Configurable Array".

1999 – 2000 JF Kirsten, “Logic Synthesis with Genetic Algorithms".

PhD degree students

1999 - 2000 JF Schoeman (part time) with Prof Joubert as sole supervisor.

Project: A Method for non-volatile data storage using avalanche

degradation”.

Continued under the supervision of Prof M du Plessis in 2001.

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Annexure B: Publications

Publications in peer-reviewed journals:

1. T-H Botha4, M du Plessis, “Technological design considerations of passive and non-

MOS active components for analogue CMOS circuits”, South African Journal of

Science, Vol 85, Nov/Des 1989, pp 701-3.

2. T-H Botha, JA Pretorius, “The custom design of a CMOS 8n X 8n-bit expandable

parallel multiplier”, South African Journal of Science, Vol 85, Nov/Des 1989, pp 704-5.

3. T Botha, “CMOS Analogue current-steering multiplier”, Electronics Letters, Vol 28(6),

12 March 1992, pp 525-6.

4. T-H Botha, HC Bredenkamp, “An 8 X 8-bit multiplier based on single-polarity multiple-

valued current-mode circuits”, South African Journal of Science, Vol 88, Aug 92,

pp448-50.

5. JF Schoeman, T-H Joubert, “Four quadrant analogue CMOS multiplier using

capacitively coupled dual-gate transistors”, Electronics Letters, Vol 32(3), Feb 1996,

pp. 209-10.

6. E Seevinck, M du Plessis, T-H Joubert, AE Theron, “Low-voltage CMOS bias circuit”,

Electronics Letters, Vol 32(20), 1996, pp. 1879-80.

7. E Seevinck, M du Plessis, T-H Joubert, AE Theron, “Active-bootstrapped Gain-

enhancement technique for Low-voltage Circuits", IEEE Transactions on Circuits and

Systems II :Analog and Digital Signal Processing, Vol 45(9), Sept 98, pp. 1250-4.

8. E Seevinck, EA Vittoz, M du Plessis, T-H Joubert, W Beetge, “CMOS Translinear

Circuits for Minimum Supply Voltage", IEEE Transactions on Circuits and Systems II :

Analog and Digital Signal Processing, Vol 47(12), Dec 2000, pp. 1560-3.

9. JC Cronje, T-HJ oubert, “How useful is peer-produced multimedia teaching material?”,

Campus-Wide Information Systems, Vol. 18(5), 2001, pp. 204-212.

10. H.M. Cele, V. Ojijo, H. Chen, S. Kumar, K. Land, T. Joubert, M.F.R. de Villiers, S.S.

Ray , “Effect of Nanoclay on Optical Properties of PLA/Clay Composite Films”,

Polymer Testing, Vol. 36, June 2014, pp.24-31.

4 Her surname was Botha.

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11. S. Smith, K. Govindasamy, U. Govender, H. Chen,T-H. Joubert,K. Land, " Paper-

based smart microfluidics for education and low cost diagnostics", South African

Journal of Science, accepted for publication.

Published peer-reviewed conference proceedings:

1. T-H Botha, “VLSI Implementation of Neural Networks”, First South African Workshop

on Pattern Recognition, WITS, Nov 19905.

2. T-H Botha, “A Neural Numeral Classifier Implemented in Analog CMOS Technology”,

Proceedings of the Workshop on Visual Signal Processing and Communications,

Hsinchu, Taiwan, June 1991, pp 132-5.

3. E Barnard, T-H Botha, “Parallelization of neural networks”, Symposium on Parallel

Processing - Design and Implementation, CSIR, Pretoria, June 1991.

4. T-H Botha, “A Flexible Analog CMOS Neural Network Chip”, Proceedings of the

Second South African Workshop on Pattern Recognition, Stellenbosch, Nov 1991, pp

139-45.

5. S H Janse van Vuuren, T-H Botha, “Pruning of Neural Networks”, Proceedings of the

Second South African Workshop on Pattern Recognition, Stellenbosch, Nov 1991, pp

5-8.

6. T-H Botha, “An analog CMOS Configurable and Programmable Neural Network”,

Proceedings of the 11th International Conference on Pattern Recognition, The Hague,

Netherlands, Sept 1992, pp 222-4.

7. T-H Joubert, “Low programming voltage CMOS Floating Gate Transistor”,

Proceedings of the Fifth International Symposium on the Simulation of Devices and

Technology, Kruger National Park, South Africa, Nov 1995, pp 166-9.

8. JF Schoeman, T-H Joubert, “Capacitively-Coupled Floating Gate MOSFET Devices”,

Proceedings of the Fifth International Symposium on the Simulation of Devices and

Technology, Kruger National Park, South Africa, Nov 1995, pp 196-9.

9. T-H Joubert, M du Plessis, LW Snyman, AE Theron, “Education and training of

microelectronics engineers: why and how?”, Proceedings of the IEEE International

Africon Conference ’96, Stellenbosch, South Africa, Sept 1996, pp. 293-6.

5 Received award for best student paper.

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10. JF Schoeman, T-H Joubert, “Time- and cost-effective practical IC design for

engineering students”, Proceedings of the IEEE International Africon Conference ’96,

Stellenbosch, South Africa, Sep 1996, pp. 972-7.

11. JF Schoeman, T-H Joubert, “Modelling and Simulation of Capacitively Coupled

Floating Gate MOSFETs Under Switched Operation”, Proceedings of The Sixth

International Conference on Simulation of Devices and Technologies, Cape Town,

South Africa, 14-16 October 1998, pp.127-130.

12. T-H Joubert, “Electronics on the Web", Proceedings of the IEEE International Africon

Conference ’99, Cape Town, South Africa, Sept 1999, pp. 1239-1240.

13. JF Schoeman, T-H Joubert, “A low input offset voltage operational amplifier using

Capacitively Coupled Floating Gate (CCFG) MOSFET technology", Proceedings of

the IEEE International Africon Conference ’99, Cape Town, South Africa, Sept 1999,

pp. 1177-80.

14. JF Schoeman, T-H Joubert, G van der Westhuizen, “A novel technique for non-volatile

digital data storage", Proceedings of the IEEE International Africon Conference ’99,

Cape Town, South Africa, Sept 1999, pp. 1161-2.

15. T-H Joubert, E Seevinck, M du Plessis, “4-Transistor CMOS SRAM cell",

Proceedings of the IEEE International Africon Conference ’99, Cape Town, South

Africa, Sept 1999, pp. 1173-6.

16. T-H Joubert, E Seevinck, M du Plessis, "A CMOS Reduced-Area SRAM Cell",

Proceedings of the IEEE International Symposium on Circuits and Systems 2000,

Geneva, Switzerland, May 2000, pp. III335-8.

17. JF Schoeman, T-H Joubert, “Enhanced ModelForMIFG MOSFET Devices Under

Switched Operation”, Proceeding of IEEE Semiconductor ConferenceCAS 2001,Vol

2,Sinaia, Romania,October 2001, pp. 561-4.

18. C Schutte, M du Plessis, T-H Joubert, O Philander, “Technology development for a

microelectro-mechanical system microbolometer”, 2nd SAIAS Symposium,

Stellenbosch, South Africa, September 2008.

19. T-H Joubert, M du Plessis, “A 384X288 pixel CMOS image readout chip”,

Proceedings of the South African Conference on Semi and Superconductor

Technology, Stellenbosch, South Africa, April 2009, pp. 105-110.

20. T-H Joubert, M du Plessis, “CMOS Focal Plane Processing Chip for IR Array Imager”,

Proceedings of the 1st South African Conference on Sensors, MEMS and Electro-

24

optical Systems (SMEOS09), Skukuza, Kruger National Park, South Africa,

September 2009, p. 21-26.

21. PJ Venter, AC Alberts, M du Plessis, T-H Joubert, ME Goosen, C Janse van

Rensburg, P Rademeyer, NM Faure, “A CMOS microdisplay with integrated controller

utilizing improved silicon hot carrier luminescent light sources”, Proceedings SPIE

03/2013 - Photonics West 2013, San Fransisco, California, USA, February 2013,pp.

864309-1 - 9.

22. P Bezuidenhout, J Schoeman, T-H Joubert, “The modelling of a capacitive

microsensor for biosensing applications”,Proc. SPIE 9257 - 3rd South African

Conference on Sensors, MEMS and Electro-optical Systems (SMEOS14), Skukuza,

Kruger National Park, South Africa, March 2014, pp. 92570P-1 - 9.

23. H Chen, V Ojijo, H Cele, T Joubert, S Sinha Ray, K Land, “Tailoring the mechanical

properties of SU-8/clay nanocomposites: polymer microcantilever fabrication

perpective”,Proc. SPIE 9257 - 3rd South African Conference on Sensors, MEMS and

Electro-optical Systems (SMEOS14), Skukuza, Kruger National Park, South Africa,

March 2014,92570B-1 – 11.

24. S Smith, K Govindasamy, T-H Joubert, K Land, “Rapid development of paper-based

fluidic diagnostic devices”, 15th Annual International RAPDASA (Rapid Product

Development Association of South Africa) Conference, Nov. 2014, Stellenbosch,

South Africa, Accepted for presentation.

25. H. Chen, T-H. Joubert, S. Smith, K. Land, “Inkjet printed silver tracks on different

paper substrates”, 7th International Symposium OnMacro- and Supramolecular

Architectures and Materials (MAM-14), Nov. 2014, Johannesburg, South Africa,

Submitted for proceedings publications.

Conference presentations without published articles:

1. M du Plessis, O Philander, T-H Joubert, C Schutte, “Uncooled IR Sensor Technology”,

AMTS Symposium, Pretoria, South Africa, April 2008.

2. T-H Joubert, M du Plessis, O Philander,CSchutte, “Uncooled IR Sensor Technology”,

AMTS Symposium, Pretoria, South Africa,September 2010.

3. T-H Joubert, M du Plessis, “The State of the ROIC”, 2nd South African Conference on

Sensors, MEMS and Electro-optical Systems (SMEOS11), Berg-en-Dal, Kruger

National Park, South Africa, September 2011.

25

4. T-H Joubert, S Kumar, K Govindasamy, J Chen, P Mjwana, S Potgieter, K Land

“Label-free impedance detection of E.coli in waste water”, 3rd South African

Conference on Sensors, MEMS and Electro-optical Systems (SMEOS14), Skukuza,

Kruger National Park, South Africa, March 2014.

Publications in the popular press:

1. T-H Botha, "A Flexible Analog CMOS Neural Network Chip", DATAWEEK, 4

December 1992, pp 14-6.

26

Annexure C: Projects for industry

As independent consultant:

1991 - 1992 Parallelization of SPICE MIKOMTEK

1991 - 1992 Layout system for custom analog circuits MIKOMTEK

1992 Security device:

Encryption chip for software protection, including

FPGA prototype

Holistic

Creations

1993 CMOS array readout circuit:

128x128 pixel CMOS readout for IR detector array

SST

1993 Pad ring:

Design of I/O block and Foresight Tiny pad ring

Kentron

2004 - 2012 SiLED / INSiAVA:

Design of Silicon LED receiver input

transimpedance amplifiers (SiLED3, SiLED4).

Design of Silicon LED receiver output circuits

(SiLED5).

Design of Silicon LED receiver detectors

(SiLED6).

Design of Silicon LED microdisplay driver

circuits(INSiAVA11, INSiAVA12).

UP /

INSiAVA

As member of SST:

1993 Staring array readout:

128x128 pixel CMOS readout for IR detector array

CSIR

1994 ZapRAM:

Design of ZapRAM integrated circuit, including

power-on reset

Nanoteq

1995 Equalizer:

Literature study of candidate equaliser

technologies

LGI

1999 Bolometer structures:

Experimental investigation of CMOS-compatible

Kentron

27

bolometer structures and study of readout circuits

2001 ADC:

Design of CMOS analog to digital converter

integrated circuit

Azoteq

2001 Light sensor:

Design of CMOS light sensor

Azoteq

2001 CMOS PiN Detector:

Design and manufacture Si PIN detectors

Kentron

2002 Bandgap:

Design of CMOS bandgap reference circuit

Azoteq

2003 Smart optical sensor imager:

Feasibility study of MAPP2200 smart optical

sensor imager technology transfer

Avitronics

2006 Synchronous detector:

Feasibility study of Si photodiode array and

synchronous detection chip

Denel AS

1992 - 2008 Linear array imaging signal processor:

Design of CMOS mixed-signal dual 50-channel imaging

signal processor chip (3 versions)

Eloptro /

Kentron

1993 - 1995 Image readout and signal processor:

Design a of 120-channel prototype focal plane

processor chip

Eloptro

1995 - 1997 Image readout and signal processor:

Design of 288x4 TDI (Time-Delay and Integration) focal

plane processor chip

Eloptro

1997 - 2003 Detector and readout signal processor:

Design of Si PIN quadrant detector and 0.8μm

BiCMOS wideband processing chip

Received the Technical Achievement of the Year

Award from Kentron

Kentron

1999 - 2008 Array readout and signal processor: Kentron/

28

Design of 288x384 pixel mixed-signal CMOS

image readout chip (2 versions)

Denel AS

2000 - 2001 Technical audit of Hall Sensor chip:

Technical audit: Design of Hall effect sensors and

signal processing circuitry

SAMES

2008 - now Uncooled IR Sensor:

Design of bolometer structures and processes, as

well as CMOS readout circuits

AMTS /

TIA

2009 - now Secret:

Design ofSECRETintegrated circuit chip

Ciphertec

2012 Design transfer of linear array imaging signal

processor

Denel AS

29

Annexure D: Technical reports

As independent consultant:

1992 Parallelization of SPICE MIKOMTEK

1992 Layout system for custom analog circuits MIKOMTEK

1992 Design of an integrated circuit for software

security

Nanoteq

1993 Design of 128x128 pixel CMOS readout for IR

detector array

SST

1993 Design of I/O block and Foresight Tiny pad ring Kentron

2005 Design and evaluation of transimpedance

receiver circuits

UP

2005 Design of receiver post-amplifier circuits UP

2005 Design and evaluation of detector test structures UP

2010 Investigation into INSiAVA Patent Citing INSiAVA

2011 Investigation into 2D bar codes for INSiAVA

LED's

INSiAVA

2011 Design of 8X64 microdisplay control circuits INSiAVA

2012 Design of 96X128 microdisplay control circuits INSiAVA

As member of SST:

1993 Design and simulation of circuits for linear focal

plane processor

Eloptro

1993 Design of CMOS focal plane pre-processor test

chip

Eloptro

1993 Design of CMOS focal plane pre-processor test

chip

Eloptro

1994 Characterization of circuits for linear focal plane

processor

Eloptro

1994 Characterization of CMOS focal plane pre-

processor test chip

Eloptro

30

1994 Design review of circuits for linear focal plane

processor

Eloptro

1994 Development specification for technology

demonstrator focal plane processor

Eloptro

1994 Design and simulation of 120-channel prototype

focal plane processor

Eloptro

1994 Specification of linear focal plane processor IC Eloptro

1994 Design review of 120-channel focal plane

processor

Eloptro

1994 Evaluation of linear focal plane processor dewar

assembly A

Eloptro

1994 Design and simulation of ZapRAM integrated

circuit, including power-on reset

Nanoteq

1994 Development specification for 120-channel

prototype focal plane processor

Eloptro

1994 Test specification for linear focal plane processor

IC

Eloptro

1994 Specification for linear focal plane processor IC

tester

Eloptro

1994 Design review of linear focal plane processor IC Eloptro

1994 Design and simulation of linear focal plane

processor prototype IC

Eloptro

1994 Characterization of linear focal plane processor

prototype IC

Eloptro


assembly B

Eloptro


assembly C

Eloptro

1995 Pre-study for 288x4 TDI focal plane processor Eloptro

1995 Literature study of candidate equaliser

technologies

LGI

31

1995 Characterization of 120-channel prototype focal

plane processor

Eloptro

1995 Characterization of 25-channel linear focal plane

processor IC

Eloptro

1995 Development specification for 288x4 TDI focal

plane processor chip and assembly

Eloptro

1995 Design and simulation of linear focal plane

processor IC

Eloptro

1995 Design and simulation of 18x4 TDI 8-12μm

prototype focal plane processor IC

Eloptro

1996 Pre-study for 288x4 3-5μm TDI focal plane

processor

Eloptro

1996 Design and simulation of low noise linear focal

plane processor IC

Eloptro

1996 Characterization of low noise linear focal plane

processor IC

Eloptro

1996 Characterization of 18x4 TDI 8-12μm prototype

focal plane processor IC

Eloptro

1996 Design review of linear focal plane processor IC Eloptro

1996 Development specification for 288x4 TDI 3-5μm

focal plane processor

Eloptro

1996 Design and simulation of experimental 288x4 TDI

focal plane processor and test structures

Eloptro

1996 Characterization of 50-channel low noise linear


Eloptro

1997 Design optimization of low noise linear focal plane

processor IC

Eloptro

1997 Characterization of experimental 288x4 TDI focal

plane processor test structures

Eloptro

1997 Design and simulation of 288x4 TDI focal plane

processor

Eloptro

32

1997 Study for two-colour PxQ CMOS focal plane array

with n-stage TDI

Eloptro

1997 Design and implementation of signal conditioner

test instrument

DETEK

1997 Study on Si quadrant detector diodes and BiCMOS

non-linear pre-amplifiers

Kentron

1997 Characterization of experimental 288x4 TDI focal

plane processor test structures

Eloptro

1997 Characterization of 288x4 TDI focal plane

processor

Eloptro

1997 Characterization of linear focal plane processor

test circuits

Eloptro

1997 Design and simulation of low power, low noise

linear focal plane processor IC

Eloptro

1998 Concept design of CMOS wideband quadrant

detector signal processing chip

Kentron

1998 Design of prototype CMOS wideband quadrant

detector signal processing chip

Kentron

1998 Characterization of prototype CMOS wideband

quadrant detector and processor IC

Kentron

1998 Characterization of low power, low noise linear


Eloptro

1999 Study of bolometer FPA structures compatible with

CMOS IC technology

Kentron

1999 Experimental investigation of CMOS-compatible

bolometer FPA structures

Kentron

1999 Study of bolometer FPA readout structures Kentron

1999 Evaluation of EG&G wideband quadrant detector

signal processor prestudy

Kentron

1999 Characterization of second run CMOS wideband

quadrant detector and processor IC

Kentron

33

1999 Prestudy for large array imager CMOS focal plane

readout integrated circuit

Kentron

1999 Design of digital standard cell library for focal plane

array readout chip

Kentron

2000

Study of large-area IR photodetectors for 1.4-

1.8μm wavelengths

Kentron

2000

Characterization report of focal plane array readout

circuits

Kentron

2001 Design and simulation of a 0.6μm CMOS

288X384 focal plane array IC

Kentron

2001 Design of Si PIN quadrant detector and 0.8μm

BiCMOS wideband processing chip

Kentron

2001 Design and simulation of CMOS ADC Azoteq

2001 Design of CMOS light sensor and converter Azoteq

2001 Test specification for 0.8μm BiCMOS wideband

quadrant detector processing chip

Kentron

2001 Technical audit: Design of Hall effect sensors and

signal processing circuitry

SAMES

2002 Characterization of 0.6μm CMOS focal plane

array readout IC

Kentron

2002 User guide : basic clock generator for CMOS focal

plane array IC

Kentron

2002 Characterization of 0.8μm BiCMOS wideband

quadrant detector processing chip

Kentron

2002 Design of CMOS bandgap reference circuit Azoteq

2002 Design of 0.6μm CMOS focal plane processor

ASIC

Kentron

2003 Verification of remanufactured 0.8μm BiCMOS

wideband quadrant detector processing chip

Kentron

2003 Feasibility study of MAPP2200 smart optical Avitronics

34

sensor imager technology transfer

2003 Characterization of PIN quadrant detectors Kentron

2003 Functional characterization of 0.6μm CMOS focal

plane processor ASIC

Kentron

2004 Detail characterization of 0.6μm CMOS focal plane

processor ASIC

Kentron

2005 Characterization of CDS and non-linear test circuits

for focal plane processing

Kentron

2006 Feasibility study of Si photodiode array and

synchronous detection chip

Denel AS

2006 Design review of 288X384 array CMOS focal plane

array IC

Denel AS

2007 Signal specification for 288X384 array CMOS focal

plane array IC

Denel AS

2007 Design and simulation of 288X384 0.35μm CMOS

focal plane array IC

Denel AS

2008 Literature study of current and future uncooled IR

sensor technologies

AMTS

2008 Technical description of the *** focal plane

processor chip

DETEK

2008 Technical specification of the *** focal plane

processor chip

DETEK

2008 Test specification for CMOS focal plane processor

IC and feasibility of wafer probing

Kentron

2008 Characterization of 288X384 0.35μm CMOS focal

plane array IC

Denel AS

2009 Process development for bolometer sensor

manufacture

AMTS

2009 Design and specification of 288X384 0.35μm

CMOS focal plane array IC

Denel AS

2009 Feasibility study of SECRET integrated circuit Ciphertec

35

2009 Design and simulation of first bolometer prototypes AMTS

2009 Concept design and simulation of SECRET

integrated circuit

Ciphertec

2009 Characterization of bolometer prototypes AMTS

2009 Simulation and modelling of infrared sensor

structures

AMTS

2010 Schematic design and simulation of prototype

CMOS readout circuits

AMTS

2010 Design and simulation of blocks for SECRET

integrated circuit

Ciphertec

2010 Design of second bolometer prototypes AMTS

2010 Simulation of SECRET integrated circuit Ciphertec

2010 Design and simulation of SECRET integrated

circuit

Ciphertec

2010 Production readiness review of SECRET

integrated circuit

Ciphertec

2010 Design and simulation of prototype CMOS ROIC

for a 0.35μm process

AMTS

2011 Functional characterization of SECRET integrated

circuit

Ciphertec

2011 Characterization of first prototype CMOS readout

circuits

TIA

2011 Characterization of prototype 0.35μm CMOS

readout circuits

TIA

2011 Characterization of SECRET integrated circuit Ciphertec

2011 Chip screening for SECRET integrated circuit

experimentation

Ciphertec

2011 Design review of SECRET integrated circuit Ciphertec

2011 Design and simulation of SECRET TC1 integrated Ciphertec

36

circuit

2012 Design transfer of linear array imaging signal

processor to 0.35μm CMOS process

Denel AS

2012 Design and simulation of prototype CMOS ROIC

array

TIA

2012 Characterization of prototype CMOS ROIC array TIA

phd, preng, mieee · a summary of students and their research projects is presented in appendix a....

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