Invention Grant
- Patent Title: Structure and method of forming a semiconductor device with resistive elements
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Application No.: US17813880Application Date: 2022-07-20
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Publication No.: US12074107B2Publication Date: 2024-08-27
- Inventor: Hong-Wei Chan , Yung-Shih Cheng , Wen-Sheh Huang
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsinchu
- Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Current Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Current Assignee Address: TW Hsinchu
- Agency: Haynes and Boone, LLP
- The original application number of the division: US17111417 2020.12.03
- Main IPC: H01L23/522
- IPC: H01L23/522 ; H01L21/762 ; H01L21/768 ; H01L49/02

Abstract:
A method of forming a semiconductor device includes forming a conductive feature and a first punch stop layer, where the conductive feature has a first top surface, and where the first punch stop layer has a second top surface that is substantially level with the first top surface. The method further includes forming a resistive element over the first punch stop layer. The method further includes etching through a first portion of the resistive element to form a first trench that exposes both the second top surface of the first punch stop layer and a first sidewall surface of the resistive element. The method further includes forming a first conductive via within the first trench, where the first conductive via contacts the first sidewall surface of the resistive element.
Public/Granted literature
- US20220359387A1 STRUCTURE AND METHOD OF FORMING A SEMICONDUCTOR DEVICE WITH RESISTIVE ELEMENTS Public/Granted day:2022-11-10
Information query
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