Patent ID: 11948977
Assignee: STMICROELECTRONICS S.R.L.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A method, comprising:
forming a first doped region and a second doped region by doping an active area of a substrate;
forming a recess in the active area of the substrate, the recess extending into at least one of the first doped region or the second doped region;
forming a planar semiconductor layer at least partially in the recess;
forming a dielectric layer over the planar semiconductor layer;
forming a conductive layer over the dielectric layer;
partially recessing the dielectric layer to form an undercut region below the conductive layer; and
encapsulating the conductive layer with a single, continuous encapsulant, the encapsulant filling the undercut region and in contact with an underside of the conductive layer.