公开(公告)号：US20250081597A1

公开(公告)日：2025-03-06

申请号：US18240106

申请日：2023-08-30

Applicant: Intel Corporation

Inventor： Leonard P. GULER ,  Anindya DASGUPTA ,  Ankit Kirit LAKHANI ,  Guanqun CHEN ,  Ian TOLLE ,  Saurabh ACHARYA ,  Shengsi LIU ,  Baofu ZHU ,  Nikhil MEHTA ,  Krishna GANESAN ,  Charles H. WALLACE

IPC: H01L27/088 ,  H01L29/06 ,  H01L29/423 ,  H01L29/775 ,  H01L29/78 ,  H01L29/786

Abstract: Integrated circuit structures having uniform grid metal gate and trench contact cut, and methods of fabricating integrated circuit structures having uniform grid metal gate and trench contact cut, are described. For example, an integrated circuit structure includes a vertical stack of horizontal nanowires. A gate electrode is over the vertical stack of horizontal nanowires. A conductive trench contact is adjacent to the gate electrode. A dielectric sidewall spacer is between the gate electrode and the conductive trench contact. A first dielectric cut plug structure extends through the gate electrode, through the dielectric sidewall spacer, and through the conductive trench contact. A second dielectric cut plug structure extends through the gate electrode, through the dielectric sidewall spacer, and through the conductive trench contact, the second dielectric cut plug structure laterally spaced apart from and parallel with the first dielectric cut plug structure.

公开(公告)号：US20240186395A1

公开(公告)日：2024-06-06

申请号：US18076130

申请日：2022-12-06

Applicant: Intel Corporation

Inventor： Krishna GANESAN ,  Ala ALAZIZI ,  Ankit Kirit LAKHANI ,  Peter P. SUN ,  Diana Ivonne PAREDES

IPC: H01L29/423 ,  H01L29/66 ,  H01L29/775 ,  H01L29/78 ,  H01L29/786

CPC classification number: H01L29/42392 ,  H01L29/6681 ,  H01L29/775 ,  H01L29/785 ,  H01L29/78696

Abstract: Lined conductive via structures for trench contact are described. In an example, an integrated circuit structure includes a plurality of gate structures over corresponding ones of a plurality of vertical stacks of horizontal nanowires. The integrated circuit structure also includes a plurality of conductive trench contact structures alternating with the plurality of gate structures, each of the plurality of conductive contact structures having an upper portion over a lower portion, the upper portion of each of the plurality of conductive trench contact structures having a length between ends. The integrated circuit structure also includes a dielectric liner in lateral contact with sides along the length of the upper portion of each of the plurality of conductive contact structures, wherein the dielectric liner is not in contact with the ends of the upper portion of each of the plurality of conductive contact structures.