If this is N+ in n-well, B ("Bulk") is the N+ contact. It should be connected to VDD - at least if you have pMOSFETs in the same n-well.Shlapenka said:in my design i use resnsppoly – N+ poly resistor with salicide, it has 3 pins - PLUS, MINUS and B (picture No.1).
This doesn't affect the B contact.Shlapenka said:im sorry i mistyped it is actualy an resnsppoly – N+ poly resistor without salicide
So my second info above applies.Shlapenka said:it has these layers:
Poly
Pimp
SiProt & Resdum (Marker Layer)
Cont
Metal1
and is placed on substrate.
Hi diemilio, hi Shlapenka,diemilio said:Hi Shlapenka, hi erikl.
erikl, are you sure of what you posted? cause it seems to me that the B terminal is should always be connected to the substrate potential and not to any potential or even the N+ contact. The resistor symbol that Shlapenka is using seems to be a distributed model for the resistor so the B terminal is to model the overall capacitance to subs. ...
diemilio
Hi diemilio,diemilio said:Well, now that I think about it... the B terminal might not be doing anything in the spectre model, but it might be there so that when you run parasitic extraction you get the parasitic caps from poly to subs. I'm not sure of this though, could someone confirm??
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