Patent ID: 7883980

Claim:
A method, comprising: forming an insulated gate structure on a semiconductor substrate, the insulated gate structure having a conducting gate and insulating sidewalls and being separated from the substrate by a channel region under the insulated gate structure, the channel region including undercut void regions subjacent the gate oxide and extending under the insulated gate structure, said forming exposing semiconductor sidewalls of a channel under said insulated gate structure; depositing a seed metal on the substrate in source/drain regions adjacent the channel region, the deposition being blocked from the semiconductor sidewalls of the channel by the insulated gate structure, wherein the seed metal is formed by depositing the seed metal and then removing excess seed metal from atop the insulated gate structure; and growing at least one of (i) a source superjacent the seed metal disposed on a first side of the channel and within a first one of the undercut void regions, and (ii) a drain superjacent the seed metal disposed on a second side of the channel and within a second one of the undercut void regions, wherein at least one of the source and drain are made of a source/drain metal.