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Ashish KumarRegd no-0811012097Sec-C(cse)

DIAMOND CHIP

GUIDED BY:-GAYATRI NAYAKLECTURER

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CONTENTSo Introductiono Diamond chipo Carbon nanotubeso Carbon featureso Carbon transistoro Advantageso Limitation

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INTRODUCTIONo Electronics without silicon is unbelievable

o Today, we are using silicon for the manufacturing of Electronic Chip

o But, it has many disadvantages such as being bulky in size, slow in operating speed etc

o Carbon, Silicon and Germanium belong to the same group in the periodic table

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WHAT IS DIAMOND CHIP?HOW IS IT POSSIBLE?

oDiamond chip is nothing but carbon chip. o Carbon chip is an electronic chip

manufactured on a diamond structural

carbon wafer. oit is possible through doping process

Source:www.seminarprojects.com

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WHAT IS A CARBON NANOTUBE?

o Carbon nanotubes were Invented in 1991

o It is a nanosize cylinder of carbon atoms

o They are made of one or several concentric walls in which carbon atoms are arranged in hexagonal pattern

Source:www.technologyreview.com

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HOW NANOTECHNOLOGY WORKS?o Imagine a sheet of

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

o If we roll that sheet into a tube, we have a carbon nanotube.

o Carbon nanotube’s properties depend on how you roll the sheet.

Source:www.seminarprojects.com

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CARBON FEATURES….o Carbon will succeed

silicon as the predominate semiconducting material for the integrated circuits of the future.

o Carbon--which sits just above silicon on the periodic table can surpass silicon’s abilities in thermal performance, frequency range and perhaps even superconductivity.

Source:www.technologyreview.com

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CARBON TRANSISTORSo Transistors less than one-

quarter the size of the tiniest silicon ones - and potentially more efficient - can be made using sheets of carbon .

o Graphene also conducts electricity faster than most materials since electrons can travel through in straight lines between atoms without being scattered.

Source:www.seminarprojects.com

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o Piece of graphene are placed on the top of silicon and position this over matallic grate.

o Acid was used to dissolve the silicon, leaving graphene suspended across 500 nm gaps.

o The ripples extend about 1 nm up and down and are around 25 nm across. It's not flat at all.

Source:www.technologyreview.com

TRANSISTORS

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ADVANTAGESo SMALLER COMPONENT As the size is smaller—it is possible to cut very smaller line through diamond structure carbon.

o FASTER THAN SILICON CHIPS Mobility inside carbon is higher than that of silicon. As size of silicon is higher than that of carbon, the chance of collision of electrons ,with larger silicon atom increases as compared to carbon chips.

Source:www.seminarprojects.com

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IT WORKS AT HIGHER TEMPERATUREAt very high temperature crystal structure of silicon will collapse LARGER POWER HANDLING CAPACITY It is assumed that carbon transistor will deliver one watt of power at rate of 100 GHZ

Source:www.seminarprojects.com

ADVANTAGES

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LIMITATIONSo MUCH MORE EXPANSIVE THAN SILICONA four-millimeter-square diamond substrate costs

several tens of thousands of dollar compared to virtually nothing for silicon.

o ELECTRICITY CANNOT TRAVEL SMOOTHLY

THROUGH DIAMONDResearches are seeking impurities that can be

added to aid electricity flow.

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CONCLUSIONo This chip would be most useful in devices located near hot burning engines.o Diamond chip thus replaces the need of silicon in every aspect of future generation.

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REFERENCESSo Diamond science and technology, volume- 1oChip technology Jörg D. Hoheisel – Technology &

EngineeringoElectro technology ,volume- 41owww.chipcatelog.comowww.cpucollector.com

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THANK YOU