Invention Application
- Patent Title: HYDROGEN VENTILATION OF CMOS WAFERS
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Application No.: US16542628Application Date: 2019-08-16
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Publication No.: US20200058485A1Publication Date: 2020-02-20
- Inventor: Jeffrey Alan West , Adrian Salinas , Elizabeth C. Stewart , Dhanoop Varghese , Thomas D. Bonifield
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Main IPC: H01L21/02
- IPC: H01L21/02 ; H01L49/02

Abstract:
An integrated circuit a semiconductor substrate includes a device die with includes transistors configured to execute an electrical function. A first interconnect layer of the device die is configured to route electrical signals or power to terminals of the transistors. An interlevel dielectric (ILD) layer is located over the interconnect layer. A metal electrode located over the ILD layer. A dielectric barrier layer is located between the ILD layer and the metal electrode. A scribe seal surrounds the device die. A first opening within the dielectric barrier layer surrounds the metal electrode. Second and third openings within the dielectric barrier layer are located between the first opening and the scribe seal.
Public/Granted literature
- US10886120B2 Hydrogen ventilation of CMOS wafers Public/Granted day:2021-01-05
Information query
IPC分类: