Patent ID: 11955408
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An integrated circuit semiconductor device, comprising:
a substrate including a first surface and a second surface opposite the first surface;
a trench in the substrate, the trench extending from the first surface of the substrate toward the second surface of the substrate;
a through silicon via (TSV) landing part in the trench, the TSV landing part having:
a first portion spaced apart from the first surface of the substrate, and
a second portion between the first portion and the first surface of the substrate, the first portion being wider than the second portion;

a TSV hole in the substrate, the TSV hole extending from the second surface of the substrate and aligned with a bottom surface of the TSV landing part; and
a TSV in the TSV hole and in contact with the bottom surface of the TSV landing part wherein a width of the TSV increases and does not decrease in a direction from the first surface to the second surface.