Patent ID: 11948990
Assignee: WINBOND ELECTRONICS CORP.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 0:
1. A manufacturing method of a semiconductor device, comprising:
forming a first transistor on a substrate, wherein the first transistor comprises:
a first semiconductor channel structure, wherein the first semiconductor channel structure comprises:
first horizontal portions stacked in a vertical direction and separated from one another, wherein each of the first horizontal portions is elongated in a horizontal direction; and
a first vertical portion elongated in the vertical direction and connected with the first horizontal portions;

two first source/drain structures disposed at two opposite sides of each of the first horizontal portions in the horizontal direction respectively, wherein the two first source/drain structures are connected with the first horizontal portions;
and

a first gate structure encompassing the first horizontal portions and the first vertical portion of the first semiconductor channel structure, wherein a part of the first gate structure is disposed between the first vertical portion of the first semiconductor channel structure and the substrate in the vertical direction.