公开(公告)号：US20240105718A1

公开(公告)日：2024-03-28

申请号：US17934251

申请日：2022-09-22

Applicant: Intel Corporation

Inventor： Tao Chu ,  Guowei Xu ,  Minwoo Jang ,  Yanbin Luo ,  Feng Zhang ,  Ting-Hsiang Hung ,  Chia-Ching Lin

IPC: H01L27/088 ,  H01L21/8234 ,  H01L29/06 ,  H01L29/08 ,  H01L29/778 ,  H01L29/786

CPC classification number: H01L27/0886 ,  H01L21/823412 ,  H01L21/823418 ,  H01L29/0673 ,  H01L29/0847 ,  H01L29/778 ,  H01L29/78696

Abstract: Methods for fabricating an integrated circuit (IC) device with a protection liner between doped semiconductor regions are provided. An example IC device includes a channel material having a first face and a second face opposite the first face, a first doped region and a second doped region in the channel material, extending from the second face towards the first face by a first distance; and an insulator structure in a portion of the channel material between the first and second doped regions, the insulator structure extending from the second face towards the first face by a second distance greater than the first distance. The insulator structure includes a first portion between the second face and the first distance and a second portion between first distance and the second distance. The insulator structure includes a liner material on sidewalls of the first portion but absent on sidewalls of the second portion.