Invention Application
- Patent Title: SEMICONDUCTOR STRUCTURE AND MANUFACTURING METHOD THEREOF
- Patent Title (中): 半导体结构及其制造方法
-
Application No.: US13921221Application Date: 2013-06-19
-
Publication No.: US20140374805A1Publication Date: 2014-12-25
- Inventor: Yi-Ching Wu , Chih-Sen Huang , Ching-Wen Hung
- Applicant: UNITED MICROELECTRONICS CORP.
- Main IPC: H01L21/311
- IPC: H01L21/311 ; H01L23/00

Abstract:
A manufacturing method for a semiconductor device first provides a substrate having at least a first transistor formed thereon. The first transistor includes a first conductivity type. The first transistor further includes a first metal gate and a protecting layer covering sidewalls of the first metal gate. A portion of the first metal gate is removed to form a first recess and followed by removing a portion of the protecting layer to form a second recess. Then, an etch stop layer is formed in the second recess.
Public/Granted literature
- US09064814B2 Semiconductor structure having metal gate and manufacturing method thereof Public/Granted day:2015-06-23
Information query
IPC分类: