Patent ID: 9728534
Date: 2017-08-08
CPC Classifications: H01L

Claim:
1. A semiconductor device, comprising: a silicon substrate; one or more first fins extending from the silicon substrate into an oxide layer of the silicon substrate; epitaxial layers extending from each side of the one or more first fins; oxide filler material in a plurality of spaces between each side of the epitaxially-grown first fins; a plurality of second fins positioned in the spaces between each of the one or more first fins and epitaxial layers; a first opening in the oxide filler material exposing a top surface of the oxide filler material; a second opening within the first opening exposing a top surface of the oxide filler material, wherein the second opening exposes the plurality of second fins comprising a device region; a gate structure covering a portion of the plurality of second fins wherein the gate structure defines source and drain regions; and a contact on the plurality of second fins.