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

Claim 16:
17. An integrated circuit semiconductor device, comprising:
a substrate including a first surface and a second surface opposite the first surface;
active elements on the first surface of the substrate, the active elements including:
finFET transistors with pins on the first surface of the substrate, the pins extending in a first direction,
gate electrodes extending in a second direction vertical to the first direction, and
source and drain regions at opposite sides of each of the gate electrodes;

through silicon via (TSV) landing parts connected to the source drain regions of the finFET transistors and buried in the substrate, each of the TSV landing parts 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; and

TSVs connected to the TSV landing parts and buried in TSV holes aligned with bottom surfaces of the TSV landing parts from the second surface,
wherein a width of each TSV of the TSVs increases and does not decrease in a direction from the first surface to the second surface,
wherein some of the TSV landing parts are connected to a power rail part or a ground rail part in a same direction as the first direction.