Patent ID: 11961798
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The semiconductor structure of claim 1, wherein the at least two annular side walls are a plurality of annular side walls that comprise a plurality of first elongated rings extending along a first direction, the plurality of first elongated rings are interval arranged along a second direction to form a first L-shaped pattern, and
the plurality of annular side walls further comprise a plurality of second elongated rings extending along the second direction, the plurality of second elongated rings are interval arranged along the first direction to form a second L-shaped pattern, the first L-shaped pattern and the second L-shaped pattern form a rectangular pattern, and a central area of the rectangular pattern is a blank area configured to set a contact window.