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Design >> Analog Design >> dummy poly resistance
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Message started by Dipankar on Dec 11^th, 2009, 6:23am

Title: dummy poly resistance
Post by Dipankar on Dec 11^th, 2009, 6:23am

Dear All,
Need to put dummy resistors around the regular ones . I am using rppolywo. Should it be connected to VDD or gnd ? I think rppolywo should be connected to VDD (rnploy should have benn connected to ground) still not sure. Can somebody throw some insights ?

Title: Re: dummy poly resistance
Post by thechopper on Dec 12^th, 2009, 10:30am

Hi Dipankar,

I do not see a problem of connecting them to either potential since there are no junctions involved that you need to reverse bias.
I usually connect them to one of nodes from the active resistor string.

Cheers
Tosei

Title: Re: dummy poly resistance
Post by loose-electron on Dec 13^th, 2009, 4:27pm

as a general practice I would suggest grounding it out. Never leave anything floating in my opinion.