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Diode Errors are not generating in LVS

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hardyboy_86

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I am recently shifted to 40n technology from 65n technology ,
In 65n Technology my LVS always show Diodes errors which i resolve by placing a pair of reverse bias diode in schematic.

But now in 40n technology There is no diode errors present in LVS even if my designer place diodes in schematic my LVS dont recognize then and generate an missing instance error in layout.

I think there is some option in LVS thats is disabled, please let me know how to activate diodes in LVS.

Thanks
Faizan Latif
 

hardyboy_86 said:
I am recently shifted to 40n technology from 65n technology ,
In 65n Technology my LVS always show Diodes errors which i resolve by placing a pair of reverse bias diode in schematic.

But now in 40n technology There is no diode errors present in LVS even if my designer place diodes in schematic my LVS dont recognize then and generate an missing instance error in layout.

I think there is some option in LVS thats is disabled, please let me know how to activate diodes in LVS.

Thanks
Faizan Latif
Click to expand...


Hi,

May be your designer kept has added a parameter to the diode instance in schematic to ignore the device for LVS. The parameter is "lvsIgnore" to "TRUE" . If this parameter is set to any device in instance , then that device will be ignored during LVS comparision.

Cheers,
bsrin.
 

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