公开(公告)号：US11061315B2

公开(公告)日：2021-07-13

申请号：US16191589

申请日：2018-11-15

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Jia Zeng ,  Guillaume Bouche ,  Lei Sun ,  Geng Han

IPC: H01L21/00 ,  G03F1/24 ,  H01L21/033 ,  H01L21/311 ,  H01L21/3213 ,  H01L21/308

Abstract: Methods pattern a sacrificial material on an etch mask into mandrels using optical mask lithography, form a conformal material and a fill material on the mandrels, and planarize the fill material to the level of the conformal material. Such methods pattern the fill material into first mask features using extreme ultraviolet (EUV) lithography. These methods partially remove the conformal material to leave the conformal material on the sidewalls of the mandrels as second mask features. Spaces between the first mask features and the second mask features define an etching pattern. The spacing distance of the mandrels is larger than the spacing distance of the second mask features. Such methods transfer the etching pattern into the etch mask material, and subsequently transfer the etching pattern into an underlying layer. Openings in the underlying layer are filled with a conductor to form wiring in the etching pattern.

公开(公告)号：US12002869B2

公开(公告)日：2024-06-04

申请号：US17901887

申请日：2022-09-02

Applicant: GlobalFoundries U.S. Inc.

Inventor： Ruilong Xie ,  Youngtag Woo ,  Daniel Chanemougame ,  Bipul C. Paul ,  Lars W. Liebmann ,  Heimanu Niebojewski ,  Xuelian Zhu ,  Lei Sun ,  Hui Zang

IPC: H01L29/49 ,  H01L21/28 ,  H01L21/8234 ,  H01L27/088 ,  H01L27/092 ,  H01L29/417 ,  H01L29/66 ,  H01L29/78

CPC classification number: H01L29/4975 ,  H01L21/28 ,  H01L21/823431 ,  H01L21/823475 ,  H01L27/0886 ,  H01L27/092 ,  H01L29/41775 ,  H01L29/66477 ,  H01L29/783

Abstract: One illustrative integrated circuit (IC) product disclosed herein includes a first conductive source/drain contact structure of a first transistor with an insulating source/drain cap positioned above at least a portion of an upper surface of the first conductive source/drain contact structure and a gate-to-source/drain (GSD) contact structure that is conductively coupled to the first conductive source/drain contact structure and a first gate structure of a second transistor. In this example, the product also includes a gate contact structure that is conductively coupled to a second gate structure of a third transistor, wherein an upper surface of each of the GSD contact structure and the gate contact structure is positioned at a first level that is at a level that is above a level of an upper surface of the insulating source/drain cap.

公开(公告)号：US20220416054A1

公开(公告)日：2022-12-29

申请号：US17901887

申请日：2022-09-02

Applicant: GlobalFoundries U.S. Inc.

Inventor： Ruilong Xie ,  Youngtag Woo ,  Daniel Chanemougame ,  Bipul C. Paul ,  Lars W. Liebmann ,  Heimanu Niebojewski ,  Xuelian Zhu ,  Lei Sun ,  Hui Zang

IPC: H01L29/49 ,  H01L21/8234 ,  H01L29/417 ,  H01L29/66 ,  H01L29/78 ,  H01L21/28 ,  H01L27/088 ,  H01L27/092

Abstract: One illustrative integrated circuit (IC) product disclosed herein includes a first conductive source/drain contact structure of a first transistor with an insulating source/drain cap positioned above at least a portion of an upper surface of the first conductive source/drain contact structure and a gate-to-source/drain (GSD) contact structure that is conductively coupled to the first conductive source/drain contact structure and a first gate structure of a second transistor. In this example, the product also includes a gate contact structure that is conductively coupled to a second gate structure of a third transistor, wherein an upper surface of each of the GSD contact structure and the gate contact structure is positioned at a first level that is at a level that is above a level of an upper surface of the insulating source/drain cap.

公开(公告)号：US11469309B2

公开(公告)日：2022-10-11

申请号：US16804264

申请日：2020-02-28

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Ruilong Xie ,  Youngtag Woo ,  Daniel Chanemougame ,  Bipul C. Paul ,  Lars W. Liebmann ,  Heimanu Niebojewski ,  Xuelian Zhu ,  Lei Sun ,  Hui Zang

IPC: H01L29/49 ,  H01L27/092 ,  H01L29/78 ,  H01L21/28 ,  H01L29/66 ,  H01L29/417 ,  H01L21/8234 ,  H01L27/088

Abstract: One illustrative integrated circuit (IC) product disclosed herein includes a first conductive source/drain contact structure of a first transistor with an insulating source/drain cap positioned above at least a portion of an upper surface of the first conductive source/drain contact structure and a gate-to-source/drain (GSD) contact structure that is conductively coupled to the first conductive source/drain contact structure and a first gate structure of a second transistor. In this example, the product also includes a gate contact structure that is conductively coupled to a second gate structure of a third transistor, wherein an upper surface of each of the GSD contact structure and the gate contact structure is positioned at a first level that is at a level that is above a level of an upper surface of the insulating source/drain cap.