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Why need to used a very small channel lenght and channel width when designing MOSFET?

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Jeslyn_83

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Why need to used a very small channel lenght and channel width when designing op-amp?
 

Re: MOSFET

you mean mosfet
small channel is used to decrease the resistance of the channel
you know RD is very important when using a mosfet transistor
 
Re: MOSFET

not always just for digital cell design you want to have the fastest ones, but for analog using the shortest channel lenght could be a trouble, just follow the eight commands for layout ....
 

MOSFET

because of unwated regions of operation, and for your current equations to be applicable.
 

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