plastic chips full report
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20-01-2010, 11:37 PM



.doc   plastic chips seminar report.doc (Size: 117 KB / Downloads: 218)

PLASTIC CHIPS

INTRODUCTION
Scientists at Cambridge university UK have come up with the technology and finding to make ultra cheap micro chip from plastic.
The men behind plastic logic -
Hermaun Hauses - Director of Amadeus capitol partners
Richard Friend - scientist Cambridge university

Silicon chips are expensive to make
Polythiophenes and ologithiophenes

CONTENTS
INTRODUCTION
PLASTIC TECHNOLOGY
o FET TRANSISTORS
o ORGANIC TFT
o DOPING
MANUFACTURING
o CONVENTIONAL MANUFACTURING METHOD
o DIRECT PRINTING OF POLYMER TRANSITOR CIRCUITS
COOLING SYSTEM
ADVANTAGES
APPLICATIONS
CONCLUSION
REFERENCES

PLASTIC TECHNOLOGY
Polymer chains have Ëœconjugated double bondsâ„¢ Organic compound. Eg:- polythene, polyacetylene Polymer Eg:- polyethylene is a polymer of ethylene
FET transistor

Organic TFT
Electrically insulating polymers ( polyvinyl phenol, PVP) are used for any interlayer dielectrics.
For active switching layers - semi conducting polymers.
(fluorine - bithiophene copolymer ) poloymer semiconductors are a class of organic polymers formed by long chains of sp2 hybridised carbon atoms.

DOPING
Doping in inorganic materials
Doping in organic materials
Dopents added in between the chains instead of atoms.
P type doping - doping is conducted with an electron acceptor (iodine)
N type doping - doping is conducted with a donor (lithium)

MANUFACTURE
Conventional manufacturing
Direct printing techniques
Conventional manufacturing
It requires photolithography

Direct painting of polymer transistor circuits.
Chips will be made by spraying tiny globules of conducting plastics onto almost any material, including clothes and even pieces of paper
Technology is based on direct inkjet printing

* High resolution - 5 mm - 500 dpi of mall critical gap between the source and drain
* Inkjet printing - 20 to 50 mm (less than 1000 dpi)

*This process allows to inkjet print the source - drain and
gate electrodes from a water based ink at the conducting polymer , poly (3,4-ethylene dioxythiophene) doped with poly styrene solphonic acid ( PEDOT/PSS ) with a resolution of 5 mm.

High mobility - 0.002 cm2/vs
High ON - OFF current ratio of 105
Good operating stability
To fabricate complex integrated transistor currents - interconnects by vin- hole
fig
ADVANTAGES
*Time required for the print
*Non- contact printing technique
*Environment friendly

APPLICATION
* Low cost identification tags and smart cards
* Printable computers

CONCLUSION
* Many companies and universities are working towards turning
this plastic dreams into a reality.
* It donâ„¢t have the capacity to store huge chunks of memory
chips.
* Still researches believe that this is the beginning of a new
technological revolution that will play itself over the next
10 to 15 years

REFERENCES
1.Albert Paul Malvino . Phd EEE Electronics principles
published by Tata Mc graw Hill publishing company
limited New Delhi 1993 PP 110 to 125
2. Vinit Agarval Inkjet printers
Digit july 2002 PP 42 to 55
3. Neil H . E . Weste and Kamaran Eshraghian
Principles of C MOS VLSI Design II Edition
published by Tata Mc Graw Hill Publising company limited
New Delhi 1993 PP - 226 to 243
4. plasticlogic.com
5. calpoly.edu
6. intel.com

Presented by
SHAJEEL .K.P

Under the guidance of
LECT. SHYMA MOHAMMED

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06-11-2012, 11:32 AM

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