Invention Grant
- Patent Title: Prevention of metal pad corrosion due to exposure to halogen
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Application No.: US16936910Application Date: 2020-07-23
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Publication No.: US11670608B2Publication Date: 2023-06-06
- Inventor: Chih-Fan Huang , Hui-Chi Chen , Chih-Sheng Li , Chih-Hung Lu , Dian-Hau Chen , Yen-Ming Chen
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Current Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Current Assignee Address: TW Hsinchu
- Agency: Haynes and Boone, LLP
- Main IPC: H01L23/00
- IPC: H01L23/00 ; H01L21/02

Abstract:
Semiconductor devices, integrated circuits and methods of forming the same are provided. In one embodiment, a method includes depositing a first dielectric layer over a metal pad disposed over a workpiece, forming a first opening in the first dielectric layer to expose a portion of the metal pad, after the forming of the first opening, forming a second dielectric layer over the exposed portion of the metal pad, depositing a first polymeric material over the second dielectric layer, forming a second opening through the first polymeric material and the second dielectric layer to expose the metal pad, and forming a bump feature over the exposed metal pad.
Public/Granted literature
- US20210098399A1 Metal Pad Corrosion Prevention Public/Granted day:2021-04-01
Information query
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