Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

layout question -- diff. b/w material of n-well and n-diff

Status
Not open for further replies.

vikram789

Member level 3
Joined
Aug 1, 2008
Messages
59
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,288
Activity points
1,671
hi, i would like to know the diff. b/w the materials for nwell and n-diff bcoz while making bulk/substrate connection for pmos we use :

metal + contact + n-diff + nseltap (this is just to mark active region for tapping connection) + nwell .

my question is why we are using extra layer of n-diff here.
 

Fady Atef

Junior Member level 1
Joined
May 9, 2007
Messages
17
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,364
Re: layout question -- diff. b/w material of n-well and n-di

hi vikram789

The Nwell layer is lightly doped region, so we need the N+diff to create highly doped region for the contacts
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top