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SELECTIVE TEMPLATED ALIGNED AT RECESS DUAL METAL GATE PATTERNING

发明专利审中
20权利要求 · 3 独立
§ Ⅰ

卷宗概要

发明人

Orb Acton; Guowei Xu; Niangao Duan; Petr Novotny; Omair Saadat; Gianna Di Francesco; Lukas Baumgartel; David Towner; Oleg Golonzka; Dax Crum; Dan Lavric; Angeline Smith; Joseph Saunders

IPC 分类

H1L 21/8238H1L 27/92H1L 29/6H1L 29/423H1L 29/49H1L 29/786

CPC 分类

H10D84/38H10D30/6735H10D30/6757H10D62/118H10D64/667H10D84/167H10D84/177H10D84/85

Integrated circuit (IC) devices having shared, dual-metal gates for complementary transistors. An IC device includes a shared gate structure over first and second stacks of nanoribbons with complementary conductivities and a substrate, and the gate structure includes first, second, and third gate metals with the first gate metal over and around the nanoribbons in the first stack, the second gate metal over and around the nanoribbons in the second stack, and the third gate metal around and between the nanoribbons in the first stack, between the first and second stacks, in contact with both the first and second gate metals, and extending beyond the first metal over the substrate. The first gate metal may act as a temple for selective deposition of the third gate metal. The second gate metal may be conformally deposited over the nanoribbons in the second stack and on the third gate metal.

原文(中文)

Integrated circuit (IC) devices having shared, dual-metal gates for complementary transistors. An IC device includes a shared gate structure over first and second stacks of nanoribbons with complementary conductivities and a substrate, and the gate structure includes first, second, and third gate metals with the first gate metal over and around the nanoribbons in the first stack, the second gate metal over and around the nanoribbons in the second stack, and the third gate metal around and between the nanoribbons in the first stack, between the first and second stacks, in contact with both the first and second gate metals, and extending beyond the first metal over the substrate. The first gate metal may act as a temple for selective deposition of the third gate metal. The second gate metal may be conformally deposited over the nanoribbons in the second stack and on the third gate metal.