Patent ID: 11875987
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electrical contact comprising:
a first contact portion extending through an intralevel dielectric to a semiconductor device, wherein an upper surface of the first contact portion that is opposing a surface of the first contact portion that is in contact with the semiconductor device has a planar upper surface;
a second contact portion having an exterior surface defined by a curvature and a width greater than the first contact portion, wherein the curvature of the second contact portion has a greater surface area than the planar upper surface of the first contact portion and the curvature of the second contact portion is convex relative to the first contact portion; and
a third contact portion in direct contact with the second contact portion that encapsulates an entirety of the second contact portion having the curvature that is convex.