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INTEGRATED CIRCUIT STRUCTURES HAVING INTERNAL SPACER-LAST FOR UNIFORM GRID METAL GATE AND TRENCH CONTACT CUT

InventionPending
2views
20Claims · 3 independent
§ Ⅰ

Dossier Overview

Inventor

Leonard P. GULER; Marvin Y. PAIK; Aditi KHADILKAR; Charles H. WALLACE

IPC Classification

H1L 29/423H1L 21/762H1L 21/8234H1L 27/88H1L 29/6H1L 29/8H1L 29/66H1L 29/775H1L 29/786

CPC Classification

H10D30/6735H1L21/76224H10D30/14H10D30/43H10D30/6757H10D62/121H10D62/151H10D64/17H10D64/18H10D84/135H10D84/38H10D84/83

Integrated circuit structures having internal spacer-last for uniform grid metal gate and trench contact cut are described. A structure includes a stack of horizontal nanowires. A gate structure is vertically around the stack of horizontal nanowires, the stack of horizontal nanowires extending laterally beyond the gate structure. An internal gate spacer is between vertically adjacent ones of the stack of horizontal nanowires and laterally adjacent to the gate structure. An internal spacer liner is intervening laterally between the internal gate spacer and the gate structure.

Original (Chinese)

Integrated circuit structures having internal spacer-last for uniform grid metal gate and trench contact cut are described. A structure includes a stack of horizontal nanowires. A gate structure is vertically around the stack of horizontal nanowires, the stack of horizontal nanowires extending laterally beyond the gate structure. An internal gate spacer is between vertically adjacent ones of the stack of horizontal nanowires and laterally adjacent to the gate structure. An internal spacer liner is intervening laterally between the internal gate spacer and the gate structure.

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