Patent ID: 11887958
Assignee: STMICROELECTRONICS S.R.L.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A device, comprising:
a substrate having a first surface;
a ring-shaped conductive structure on the substrate, the ring-shaped conductive structure extending away from the substrate, the ring-shaped conductive structure including:
a second surface facing away from the substrate;
an opening extending towards the substrate;
an interior sidewall that surrounds the opening;
an exterior sidewall that surrounds the opening, the interior sidewall, and the second surface; and
a first diameter; and

a cylindrical conductive structure on the substrate, the cylindrical conductive structure extending away from the substrate, the cylindrical conductive structure is spaced apart from the ring-shaped conductive structure, and the cylindrical conductive structure including a second diameter less than the first diameter.