Invention Grant
- Patent Title: System and method for electrostatically chucking a substrate to a carrier
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Application No.: US16655168Application Date: 2019-10-16
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Publication No.: US11196360B2Publication Date: 2021-12-07
- Inventor: Alexander N. Lerner , Kim Ramkumar Vellore , Steven Trey Tindel
- Applicant: Applied Materials, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Applied Materials, Inc.
- Current Assignee: Applied Materials, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Patterson + Sheridan, LLP
- Main IPC: H02N13/00
- IPC: H02N13/00 ; C23C16/458 ; H01L51/56 ; H01L51/00 ; H01L21/683 ; H01L21/67

Abstract:
A chucking station comprises a chuck, a power supply, and one or more pumping elements. The chuck comprises a plurality of first vacuum ports configured to interface with a surface of a substrate and a plurality of second vacuum ports configured to interface with a surface of a carrier. The chuck further comprises a first electrical pin configured to be in electrical communication with a first electrode of the carrier, and a second electrical pin configured to be in electrical communication with a second electrode of the carrier. The power supply is configured to apply a chucking voltage and a de-chucking voltage to the first and second electrical pins. The one or more pumping elements is coupled to the first and second vacuum ports and configured to generate a vacuum between the substrate and the chuck and a vacuum between the carrier and the chuck.
Public/Granted literature
- US20210028726A1 System and method for electrostatically chucking a substrate to a carrier Public/Granted day:2021-01-28
Information query