Patent ID: 11889687
Assignee: MICRON TECHNOLOGY, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. An integrated circuit structure, comprising:
a semiconductor material having a particular conductivity type;
a first active area in the semiconductor material;
a second active area in the semiconductor material;
a first transistor in the first active area and having a source/drain region;
a trench formed in the semiconductor material between the first active area and the second active area by anisotropically removing portions of the semiconductor material; and
a dielectric material deposited in the trench;
wherein the trench comprise:
a first edge portion immediately adjacent the first active area and extending below a surface of the semiconductor material to a first depth;
a second edge portion immediately adjacent the second active area and extending below the surface of the semiconductor material to the first depth; and
an interior portion between the first edge portion and the second edge portion, and extending below the surface of the semiconductor material to a second depth, less than the gist depth;

wherein the second depth is greater than or equal to a depth of the source/drain region.