Nov 28, 2012 #1 S sb_svce2003 Newbie level 5 Joined Aug 1, 2008 Messages 8 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,314 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
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
Nov 29, 2012 #2 erikl Super Moderator Staff member Joined Sep 9, 2008 Messages 8,108 Helped 2,695 Reputation 5,370 Reaction score 2,305 Trophy points 1,393 Location Germany Activity points 44,123 I'd think every integrated transistor needs a substrate, even heterogenous ones. So put a substrate layer underneath!
I'd think every integrated transistor needs a substrate, even heterogenous ones. So put a substrate layer underneath!
Nov 30, 2012 #3 J johnjoe Advanced Member level 2 Joined May 11, 2009 Messages 554 Helped 130 Reputation 260 Reaction score 124 Trophy points 1,323 Activity points 3,967 sb_svce2003 said: 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 Click to expand... Maybe you have in your lib some substrate contacts?!
sb_svce2003 said: 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 Click to expand... Maybe you have in your lib some substrate contacts?!