LVS errors - 4 gates counted as single transistors

[ginggang100]

Hi
I am currently trying to get ride of my LVS errors. I have a few questions if anyone would answer would help me no end. At the moment i have transistors in my layout that have 4 gates and the same in my schematic but lvs counts these transistors as single transistor but in the layout they count as 4 transistors. Also I am getting bad width on some of my transistors but there widths and lengths are identical to others in the schematics and ones in the layout. Any help would be great thanks.

K

 

[keith1200rs]

LVS erros

Usually in the LVS setting there is an option to merge parallel transistors which may solve your first problem.

For your width problem, you need to look at the widths & lengths reported by the layout extraction - that should give you a clue as to what it thinks is wrong.

Keith.

 

[yaasi]

Re: LVS erros

check for the connectivity.

check if your source and drain conenctions are proper.