Aug 27, 2009 #1 V 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.
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.
Aug 27, 2009 #2 F 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
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