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Resistor matching technique in CMOS process

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rainman.cn

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In cmos process, we have several types res, N+, P+, poly1, M1, M2, and so on,
but which type match better,

regards,
rainman
 

pouchito

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res match problem

match what?
can you explain what you mean?
 

newsailor

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res match problem

These several types res can all match well as long as their W and L is big enough.
I only know that variation of res value of different corner is different obviously
 

forkschgrad

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Re: res match problem

differet type of resistors has different matching characteristics. it depends on the function.
 

dachuan315

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res match problem

you must find the data from the model munual by the factory
 

zajbanlik

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Re: res match problem

Usualy is matching by poly resistors the best. But look at your technology process specification.
 

lijianheng

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Re: res match problem

Generally poly res matching is best. It depends on the process you use.
 

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