layout of NPN in Bicmos HBT process

[sb_svce2003]

Hello All,

I designing a circuit in Bicmos HBT Process.I am using NPN.

I have used the Pcell of NPN but it does not have the substrate.And when I do a DRC , I get error "Bad Substr......"

I will be thankful if anybody can throw some clue to solve this

SB

 

[erikl]

I'd think every integrated transistor needs a substrate, even heterogenous ones. So put a substrate layer underneath!

 

[johnjoe]

Hello All,

I designing a circuit in Bicmos HBT Process.I am using NPN.

I have used the Pcell of NPN but it does not have the substrate.And when I do a DRC , I get error "Bad Substr......"

I will be thankful if anybody can throw some clue to solve this

SB

Maybe you have in your lib some substrate contacts?!