Invention Application
- Patent Title: METHOD AND APPARATUS FOR PROCESSING BEVEL EDGE
- Patent Title (中): 处理边缘的方法和设备
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Application No.: PCT/US2010059585Application Date: 2010-12-08
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Publication No.: WO2011084337A3Publication Date: 2011-09-09
- Inventor: CHEN JACK , KIM YUNSANG
- Applicant: LAM RES CORP , CHEN JACK , KIM YUNSANG
- Assignee: LAM RES CORP,CHEN JACK,KIM YUNSANG
- Current Assignee: LAM RES CORP,CHEN JACK,KIM YUNSANG
- Priority: US64092609 2009-12-17
- Main IPC: H01L21/3065
- IPC: H01L21/3065
Abstract:
A method and apparatus for processing a bevel edge is provided. A substrate is placed in a bevel processing chamber and a passivation layer is formed on the substrate only around a bevel region of the substrate using a passivation plasma confined in a peripheral region of the bevel processing chamber. The substrate may undergo a subsequent semiconductor process, during which the bevel edge region of the substrate is protected by the passivation layer. Alternatively, the passivation layer may be patterned using a patterning plasma formed in an outer peripheral region of the processing chamber, the patterning plasma being confined by increasing plasma confinement. The passivation layer on outer edge portion of the bevel region is removed, while the passivation layer on an inner portion of the bevel region is maintained. The bevel edge of the substrate may be cleaned using the patterned passivation layer as a protective mask.
Information query
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