Why is polysilicon used as a gate contact instead of metal in CMOS ? - English Version

[@3RiversSQ]

I was looking Analog baics from longtime. This where I can stop and learn. Thanks and please don't stop knowledge sharing it helps many people. Thanks

[@analoglayout]

most welcome & keep follow our page , share our channel to your friends

[@raghavmysuru1224]

Please create a separate English version playlist from day 1 class

[@riddhisehgal1766]

Great Application

[@srinivassomisetty4451]

really superbb expelnation

[@zahiddogan]

Hello , i am confused can you help me ? As i know a mosfet gate should be insulator and attract ions near applied voltage but you say its conductive.

[@vishalmanchanda4213]

Polysilicon is conductive , there is a silicon dioxide between the polysilicon and the substrate which makes the gate terminal non conductive (Ig=0A)

[@mohammedafzal534]

Do you refer any book regarding to vlsi layout with a reference link pls

[@analoglayout]

Reference book : drive.google.com/open?id=0B66x_iZXXVmXWG90ZDdxNWhaSlJlNk1vRnZ5bHZmMFpkRzBj

[@rajendragurukar4986]

Please accept the request

[@mohammedafzal534]

Good explanation! But make more English version videos

[@analoglayout]

thx for ur comment & support , sure i will make all the videos asap

[@mohammedafzal534]

Sir why do we need bulks in mosfet? I understood why it is connected to vdd & vss based on pmos & nmos but i didn't understood why do actually required bulks?

[@analoglayout]

its a fabricated method , pls refer cmos fabrication types

[@dheerajha6638]

@@mohammedafzal534 As far as i know bulk is needed to give strength to the wafer. If the wafer was too small it can break very easily.

[@sushmanv8052]

Why is polisilicon is continuous in layout ?

[@analoglayout]

It's fab process

[@PavanKumar-op5bp]

nice