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INTEGRATED CIRCUIT STRUCTURES HAVING UNIFORM GRID METAL GATE AND TRENCH CONTACT CUT IN A FORKSHEET TRANSISTOR ARCHITECTURE

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20Claims · 3 independent
§ Ⅰ

Dossier Overview

Inventor

Leonard P. GULER; Srikant JAYANTI; Jeanne L. LUCE; Shao Ming KOH; Andrew SHU; Nick LINDERT

IPC Classification

H1L 29/423H1L 27/6H1L 27/92H1L 29/6H1L 29/775H1L 29/786

CPC Classification

H10D30/6735H10D30/43H10D30/6757H10D62/121H10D84/856H10D88/

Integrated circuit structures having uniform grid metal gate and trench contact cut in a forksheet transistor architecture are described. In an example, a structure includes a dielectric backbone. First and second vertical stacks of nanowires are laterally adjacent to and in contact with first and second sides, respectively, of the dielectric backbone. First and second gate electrodes are around the first and second vertical stacks of nanowires, respectively, and are in contact with the first and second sides of the dielectric backbone, respectively. A first dielectric cut plug structure is adjacent to and in contact with the first gate electrode. A second dielectric cut plug structure is adjacent to and in contact with the second gate electrode. The second dielectric cut plug structure is parallel with the first dielectric cut plug structure.

Original (Chinese)

Integrated circuit structures having uniform grid metal gate and trench contact cut in a forksheet transistor architecture are described. In an example, a structure includes a dielectric backbone. First and second vertical stacks of nanowires are laterally adjacent to and in contact with first and second sides, respectively, of the dielectric backbone. First and second gate electrodes are around the first and second vertical stacks of nanowires, respectively, and are in contact with the first and second sides of the dielectric backbone, respectively. A first dielectric cut plug structure is adjacent to and in contact with the first gate electrode. A second dielectric cut plug structure is adjacent to and in contact with the second gate electrode. The second dielectric cut plug structure is parallel with the first dielectric cut plug structure.

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