IEEE BYTE VOLUME-3 ISSUE-1 | Page 19

IC​ ​Fabrication

By​ ​Rutwik​ ​Pandit , ​ ​SE​ ​ETRX
When​ ​I​ ​was​ ​in​ ​5th​ ​standard , ​ ​I​ ​would​ ​play​ ​a​ ​lot​ ​of​ ​GTA​ ​on​ ​my​ ​PC​ ​and​ ​the​ ​graphics​ ​looked absolutely​ ​amazing​ ​for​ ​the​ ​time . ​ ​Today​ ​I​ ​can​ ​play​ ​the​ ​same​ ​game​ ​on​ ​my​ ​phone​ ​with​ ​the​ ​same graphics​ ​without​ ​even​ ​connecting​ ​it​ ​to​ ​a​ ​charger . ​ ​We​ ​have​ ​seen​ ​incredible​ ​gains​ ​in​ ​our computational​ ​power . ​ ​Much​ ​of​ ​our​ ​technological​ ​progress​ ​has​ ​come​ ​from​ ​reducing​ ​the advancements​ ​in​ ​semiconductor​ ​fabrication .
Imagine​ ​being​ ​given​ ​a​ ​piece​ ​of​ ​paper​ ​and​ ​being​ ​told​ ​to​ ​write​ ​as​ ​much​ ​as​ ​you​ ​can​ ​on​ ​it , the​ ​obvious​ ​solution​ ​would​ ​be​ ​to​ ​write​ ​as​ ​minutely​ ​as​ ​you​ ​can .
Similarly​ ​for​ ​any​ ​semiconductor​ ​device , ​ ​a​ ​transistor​ ​is​ ​a​ ​basic​ ​building​ ​block​ ​and​ ​the​ ​size of​ ​a​ ​transistor​ ​on​ ​a​ ​silicon​ ​wafer​ ​is​ ​termed​ ​its​ ​process​ ​node​ ​size . ​ ​The​ ​size​ ​of​ ​the​ ​transistor​ ​that can​ ​be​ ​fabricated​ ​on​ ​the​ ​chip​ ​is​ ​roughly​ ​10nm-14nm .
The​ ​smaller​ ​a​ ​transistor​ ​is , ​ ​the​ ​lesser​ ​is​ ​its​ ​power​ ​consumption . ​ ​The​ ​more​ ​transistors​ ​you can​ ​fit​ ​on​ ​a​ ​piece​ ​of​ ​silicon , ​ ​the​ ​faster​ ​it​ ​is​ ​and​ ​more​ ​efficient .
There​ ​are​ ​3​ ​major​ ​players​ ​in​ ​the​ ​semiconductor​ ​manufacturing​ ​industry 1 . Intel 2 . TSMC 3 . Global​ ​Foundries
Intel​ ​has​ ​been​ ​the​ ​king​ ​of​ ​the​ ​hill​ ​for​ ​a​ ​long​ ​period​ ​of​ ​time , ​ ​but​ ​it ' s​ ​slipping​ ​and​ ​there​ ​is​ ​a major​ ​challenge​ ​incoming​ ​and​ ​which​ ​is​ ​going​ ​to​ ​slow​ ​down​ ​the​ ​rate​ ​of​ ​technological​ ​progress and​ ​that​ ​is​ ​Physics . ​ ​As​ ​the​ ​transistors​ ​get​ ​smaller , ​ ​they​ ​tend​ ​to​ ​run​ ​into​ ​weird​ ​quantum​ ​effects .