Invention Grant
- Patent Title: 3D printed plasma arrestor for an electrostatic chuck
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Application No.: US15046959Application Date: 2016-02-18
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Publication No.: US11227749B2Publication Date: 2022-01-18
- Inventor: Michael Kellogg
- Applicant: Lam Research Corporation
- Applicant Address: US CA Fremont
- Assignee: Lam Research Corporation
- Current Assignee: Lam Research Corporation
- Current Assignee Address: US CA Fremont
- Main IPC: H01J37/32
- IPC: H01J37/32 ; H01L21/67 ; H01L21/683 ; B28B1/00 ; B33Y10/00 ; B33Y80/00 ; B29L31/00

Abstract:
A method for manufacturing an arrestor for an electrostatic chuck includes printing first layers of an arrestor for an electrostatic chuck using a 3-D printer and an electrically non-conductive material. The first layers of the arrestor at least partially define a first opening to a gas flow channel. The method includes printing intermediate layers of the arrestor using the 3-D printer and the electrically non-conductive material. The intermediate layers of the arrestor at least partially define the gas flow channel. The method includes printing second layers of the arrestor using the 3-D printer and the electrically non-conductive material. The second layers of the arrestor at least partially define a second opening of the gas flow channel. At least one of the first opening, the second opening and/or the gas flow channel of the arrestor is arranged to prevent a direct line of sight between the first opening and the second opening of the arrestor.
Public/Granted literature
- US20170243726A1 3D PRINTED PLASMA ARRESTOR FOR AN ELECTROSTATIC CHUCK Public/Granted day:2017-08-24
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