Invention Grant
- Patent Title: Control of plasma sheath with bias supplies
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Application No.: US18450635Application Date: 2023-08-16
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Publication No.: US12142460B2Publication Date: 2024-11-12
- Inventor: Denis Shaw , Kevin Fairbairn , Daniel Carter
- Applicant: Advanced Energy Industries, Inc.
- Applicant Address: US CO Denver
- Assignee: Advanced Energy Industries, Inc.
- Current Assignee: Advanced Energy Industries, Inc.
- Current Assignee Address: US CO Denver
- Agency: Neugeboren O'Dowd PC
- Main IPC: H01J37/32
- IPC: H01J37/32 ; H01L21/67

Abstract:
Systems and methods for plasma processing are disclosed. An exemplary system may include a plasma processing chamber including a source to produce a plasma in the processing chamber and at least two bias electrodes arranged within the plasma processing chamber to control plasma sheaths proximate to the bias electrodes. A chuck is disposed to support a substrate, and a source generator is coupled to the plasma electrode. At least one bias supply is coupled to the at least two bias electrodes, and a controller is included to control the at least one bias supply to control the plasma sheaths proximate to the bias electrodes.
Public/Granted literature
- US20230395354A1 CONTROL OF PLASMA SHEATH WITH BIAS SUPPLIES Public/Granted day:2023-12-07
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