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

Claim 17:
18. An integrated circuit structure, comprising:
a semiconductor material having a particular conductivity type;
a first transistor in a first active area in the semiconductor material;
a second transistor in a second active area in the semiconductor material;
a third transistor in a third active area in the semiconductor material;
a first conductor forming a control gate of the first transistor and forming a control gate of the third transistor;
a second conductor forming a control crate of the second transistor; and
an isolation structure comprising a dielectric material deposited in a trench formed in the semiconductor material between the first active area and the second active area, and further in the semiconductor material between the first active area and the third active area, the isolation structure further comprising:
a first edge portion extending below a surface of the semiconductor material to a depth;
a second edge portion 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 first depth;

wherein the isolation structure has an orientation that is parallel to the first conductor and parallel to the second conductor; and
wherein the isolation structure further has an orientation that is orthogonal to the first conductor.