Schematic from Layout using skill

[sudhachocky]

I want to create schematic from layout using skill.

i know SKill coding.
I dont know how to start-with and where to start with.
Can someone help me on this?

Thanks & Regards,

 

[sudheerkm]

its difficult because many a times we split transistors to improve matching...

u can try making lists of components manipulate using filter functions

instatiate in schematics....

 

[sudhachocky]

I copied pmos and nmos from other schematic using these commands.


pmos = car(setof(i inst i~>cellName == "PCH_1P0V" ))
nmos = car(setof(i inst i~>cellName == "NCH_1P0V" ))
schCopy(pmos cv list(0:0 "R0"))
schCopy(nmos cv list(0:0.01 "R0"))

but the copied pmos and nmos does'nt have all the properties as that of original one such as width,length and drain/source/gate are not defined in the copied one.

How to copy the pmos with the properties retained?

And how to connect a wire using skill say from drain of pmos to drain of nmos?

Sumone please help me with this issue..

Thanks & Regards,

I want to create schematic from layout using skill.

i know SKill coding.
I dont know how to start-with and where to start with.
Can someone help me on this?

Thanks & Regards,

 

[erikl]

AFAIR you can create a schematic from an extracted layout netlist. You'll need appropriate schematic symbols, however.

 

[sudheerkm]

hei........

give the full path for pmos library u use

that will solve the problem of parameters

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schCreateWire() can connect between the terminals

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u can also create wire with dbCreateNet() but that won't be nicely editable