Diamond chip

Presented by:-Bibhuti Kumar PrustyBca 5th sem

Roll-16

CONTENTS

Introductiono What is diamond chip?o Carbon nano tubes

Classification Why it is call as diamond chip? Properties Advantages Limitation Conclusion

INTRODUCTION

Electronics without silicon is unbelievable, but it will come true with the evolution of Diamond or Carbon chip.

CHIP

Chip……. Chip is nothing rather than it is a storage space in

which we can store data or information for long time.

It is also used as backup propose. According to storage capacity it is different types:-

1 GB 2GB

4GB Etc.

What is carbon chip?What is carbon chip?

diamond chip or Carbon chip is an electronic chip manufactured using carbon as a wafer.

The major component in carbon chip is CNT( Carbon Nano Tube)

Carbon Nano Tube

CNT is defined as a nano dimensional tube made of graphite layers.

CNT

Carbon nanotubes were discovered in 1991 It is a nono-size cylinder of carbon atoms.They are made of one or several concentric walls

in which carbon atoms are arrenged in hexagonal pattern measuring several tens of microns in length and less than a few nanometers in diameter.

HOW CNT WORK?

Imagine a sheet of carbon atoms, which would look like a sheet of hexagons.

If u roll that sheet into a tube, you’d have a carbon nanotube.

Carbon nanotube properties depend on how you roll the sheet.

Classification:-

CARBON NANO TUBE:-

• SINGLE WALLED CNT

•MULTI WALLED CNT

SWNT

Single-wall nanotubes (SWNT) are tubes of graphite that are normally capped at the ends. They have a single cylindrical wall. The structure of a SWNT can be visualized as a layer of graphite, a single atom thick, called graphene, which is rolled into a seamless cylinder.

MWNT

Multi-wall nanotubes can appear either in the form of a coaxial assembly of SWNT similar to a coaxial cable, or as a single sheet of graphite rolled into the shape of a scroll.

Why the name DIAMOND CHIP?

o Strengtho Hardnesso Electricalo Thermal

Properties Of CNT:-

Properties:-

HARDNESS : o It can withstand a pressure up to

24GPa without deformation.

STRENGTH :o Carbon nanotubes are the strongest

and stiffest materials yet discovered in terms of tensile strength and elastic modulus respectively.

Properties:-

ELECTRICAL o High electrical conductivity (10-6

ohm).o Do not suffer from electro

migration or atomic diffusion and thus can carry high current densities (107 -109 A/cm2 ),which is 1000 times that of copper.

o Both metal and semiconductor can beformed.

Properties:-

THERMAL :The temperature

stability of carbon nanotubes is estimated to be up to 2800 °C in vacuum and about 750 °C in air.

Advantages:-

Smaller components are possible:-

It works at higher temperature:-

Faster than silicon chip:-Larger power handling

capacity:-

Smaller components are possible:-

As the size of the carbon atom is small compared with that of silicon atom, it is possible to fetch very smaller lines through diamond structural carbon. we can realize a transistor whose size is one in hundredth of silicon transistor.

It works at higher temperature

Diamond is very strongly bondedmaterial.it can withstand higher temperature compared with that of silicon. At very high temperature crystal structure of the silicon will collapse. But diamond chip can function well in these elevated temperature.

Diamond is very good conductor of heat.so if there is any heat dissipation inside the chip, heat will very quickly transferred to the heat sink or other cooling mechanics.

Faster than silicon chip:-

Carbon chip works faster than silicon chip. Mobility of electrons inside the doped diamond structure.

As the size of the silicon is higher than the that of carbon, the chance of collision of electrons with larger silicon atoms increases. But the carbon atoms size is small, so the chance of collision decreases

Larger power handling capacity:-

For power electronics application silicon is used, but it has many disadvantages such as bulk in size, slow operating speed, less efficiency, lower band gap etc. at very high voltages silicon structure will collapse.

Diamond has a strongly bonded crystal structure.so carbon chip can work under high power enviroment.we can connect high power circuit direct to the diamond chip.

LIMITATION

Much more expensive than silicon chip..

Doping process is very hard to perform due to the diamond structure, than silicon.

CONCLUSION

Carbon is more advantages than silicon. By using carbon as manufacturing material, we archive smaller, faster and stronger chip. Thus diamond chip replaces the need of silicon in every aspect in future generation.

Thank You

Reference By:-Slide Share Bibhuti Kumar

prusty

Bibhuti Kumar prusty