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need help in assura lvs - nwell not connected to vdd or vcc

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deepak242003

deepak242003

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switch name assura

we jus shifted from calibre to assura......
for lvs I am facing this problem :
nwell not connected to vdd or vcc.. i xpect to be erc error.. nybody has idea how to rectify??
psub not connected to vss

thx in advance.
 

Re: assura lvs

Either these connections are really missing, or you have a pb. either with the extract- or with the compare rules. May be your vdd, vcc, vss aren't known as global signals?
 

assura lvs

i have two powers supply AVDD33 and AVDD 18.. can i declare any voltages as global supply.?? if yes how can we do i t on assura...

thx.
 

Re: assura lvs

Yes, any. Not in assura, but in the Cadence Virtuosa schematic. Just append a "!" to your power supply nets, i.e. AVSS33! , AVDD18! , AGND! (or how you name it). Then extract and LVS once more, the LVS then should recognize your substrate and well taps.
 

assura lvs

The problem is resloved.... i used netconnect switch during LVS...and given the name followed by ":"

[:)]
 

Re: assura lvs

deepak242003 said:
... i used netconnect switch during LVS...and given the name followed by ":"
[:)]
Click to expand...

Ok, another possibility. Thank you for your :arrow: feedback!
 

assura lvs

How to find the open and short in Assura I am new ,worked only on Calibre
 

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