Invention Grant
- Patent Title: Spatial and temporal control of ion bias voltage for plasma processing
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Application No.: US16194104Application Date: 2018-11-16
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Publication No.: US10707055B2Publication Date: 2020-07-07
- Inventor: Denis Shaw , Kevin Fairbairn , Daniel Carter
- Applicant: Advanced Energy Industries, Inc.
- Applicant Address: US CO Fort Collins
- Assignee: Advanced Energy Industries, Inc.
- Current Assignee: Advanced Energy Industries, Inc.
- Current Assignee Address: US CO Fort Collins
- 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
- US20190157043A1 SPATIAL AND TEMPORAL CONTROL OF ION BIAS VOLTAGE FOR PLASMA PROCESSING Public/Granted day:2019-05-23
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