what if…. there was a kgd standards committee? - aehr test - steps.pdf · there was a kgd...
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What if…. There was a KGD
Standards Committee?
KGD Workshop 2011 November 10, 2011
Steve Steps, Aehr Test Systems
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• What might be in a KGD standard • Who might benefit • Pros and Cons of KGD standards • Conclusions
Agenda
KGD Standard 2
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• Standardize the “look and feel” of Specifying KGD – Die functionality – Size, Shape – Bonding method (bond wire,
TSV, etc.) – Bonding pads (location,
function) – How “KG” (reliability “9”s)
KGD Standard
KGD Standard 3
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• Handling standards have existed • Standards exist for 3D components
– MS1-0307: Wafer-Wafer bonding – JC-11/JC-42: Wide-IO memory – JC-14: 3D-IC Reliability Test Methods – JC-63: 3D Stacked Mixed Technologies – ….
• KGD standards for COB or stacked die?
Some Standards Exist
KGD Standard 4
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KGD Standard 5
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KGD Standard 6
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KGD Standard 7
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11-11
QFP-Package COB
Combination of Chips and PCBs – State of Technology
Die/Wire bonding on leadframe
Soldering on PCB
Die bonding onto PCB
Wire bonding Chip to PCB
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• Opens up “stacking” to everyone – Examples
• GPS “augmented reality”, head-ups display for glasses. • “Dick Tracy” watch
– Could be executed by a small team/start-up • Major companies could focus on value added
– Even large companies struggle with integrating memory into chips
– Stack a “standard” DRAM instead
• Many KGD business opportunities
Benefits of KGD Standards
KGD Standard 9
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• Because of size and weight restrictions, would require very high integration
• KGD needed: – Processor – Memory (DRAM and flash) – GPS chip – Display driver
• Could a small start-up execute this?
Example, GPS Glasses
KGD Standard 10
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• Because of size and weight restrictions, would require very high integration
• KGD needed: – Processor – Memory (DRAM and flash) – Cell-phone chip – Simple display driver/display
• Could a small start-up execute this?
Dick Tracy Watch
KGD Standard 11
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• Major components: – Processor – BUY? – Memory (DRAM and flash) – BUY? – Cell-phone chip – BUY? – Simple display driver/display – BUY? – Stacking – Contract? – Industrial Design – YES – Application programming – YES
• Could be executed by a small team, if KGD standards existed
Start-up Contribution
KGD Standard 12
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• Could even benefit well established semiconductor companies – Significant resources expended on “trivial”
aspects – such as memory. – Could instead source the memory from
well-established memory vendors – Focus resources on “core competencies”
Major Companies Benefit
KGD Standard 13
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• KGD suppliers for basic components: • DRAM • Flash • Processors • GPS/Wi-Fi/Cell phone chips
• KGD distributors (“DigiKey of KGD”) • KGD integrators (stacking/packaging)
New/Expanded KGD Business
KGD Standard 14
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• One of the key components has issues – Each DRAM manufacturer has their own size/
shape/pad locations – “Fixed” today in the packaging – Would need to be standardized to provide
consumer flexibility – Each manufacturer motivated to force their
solution as the “standard.” • Can standards be implemented quickly
enough to be useful? • Who drives the Standard Committee?
Issues With KGD Standards
KGD Standard 15
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KGD Standard 16
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KGD Standard 17
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KGD Standard 18
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• Look at existing standards • What’s missing? • Contact Rich Allen • Participate
Conclusions
KGD Standard 19