Patent ID: 9006055
Filing Date: 2015-04-14
Classification: H01L

Abstract:
1. A method comprising: forming a source and a drain on a substrate; forming a thin body (FIN) on the substrate and connecting the source and the drain; forming a gate over top and side surfaces of a first part of the FIN, thereby defining a drain-side FIN region of the FIN between the gate and the drain; forming a shielding region over top and side surfaces of a second part of the FIN in the drain-side FIN region; forming a first dielectric layer over the top and the side surfaces of the first part of the FIN prior to forming the gate; and forming a second dielectric layer over the top and the side surfaces of the second part of the FIN in the drain-side FIN region prior to forming the shielding region, wherein the second dielectric layer is thicker than the first dielectric layer.