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Design >> RF Design >> problem about varactor
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Message started by amozonman on Jun 4^th, 2012, 6:49pm

Title: problem about varactor
Post by amozonman on Jun 4^th, 2012, 6:49pm

dear all:
When i design my vco, i come across a problem about varactor. My process is tsmc .18 and I want a small varactor ,but i find that the minimum finger of varactor is 10, if the hard_constrain is unchecked, the finger can be changed smaller. but i cant find any illustration about the option "hard_constrain"

I don't know how to deal with it.

help me. THKS!