[SOLVED] LVS incredibly failed to pass when just layouting the resistor with multiple bars

[powerofthedream]

Dear Friends,

I have been tricked by a LVS error for such a long time now, and really expect some helps from you guys.

In the circuit where a large value poly resistor is employed, instead of setting a single bar, I have made multiple bars for it so that the resistor looks closer to a square in the layout. The layout and the schematic settings are displayed respectively as below:



Nevertheless, such a simple thing unbelievably leads to a series of LVS failures. Please check the captures as below:


As you could see here, the first direct error is concerned with the parameter of the resistor, that is, lvs checking could NOT recognize the 5-bars based poly resistor as a whole entity, but instead, it thinks the 5 bars resistors are independent with each other. Therefore, furthermore some more NET CONNECTIONS related LVS error will be correspondingly generated.

Until now, I suppose this may be due to some LVS tool drawbacks, thanks so much for any suggestions.

 

[dick_freebird]

This has to do with permute rules / logic. If you can't find
the right combination of check-boxes then your option is
to represent the circuit as-laid-out, in the schematic. That
is not so terrible a burden and realism is never a bad idea,
other than prettiness.

 

[GriffelKin]

Did you tried to activate the LVS switch that enables the "smash" of serial resistors into 1 device?
If you have one device in you schematic, you should "force it".
Has dick_freebird said in the previous post, it is best to represent the schematic as similar as possible to the layout.
If you do not want to mess with your LVS deck, add the resistors to your schematic.

 

[powerofthedream]

Hi guys, you are all awesome, the problem has been shot by redoing the schematic.