Invention Application
- Patent Title: METHOD AND APPARATUS FOR MEASURING WAFER BIAS POTENTIAL
- Patent Title (中): 测量晶片偏置电位的方法和装置
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Application No.: PCT/IB2010053735Application Date: 2010-08-18
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Publication No.: WO2011021160A3Publication Date: 2011-08-11
- Inventor: MAKHRATCHEV KONSTANTIN , VALCORE JOHN
- Applicant: LAM RES CORP , LAM RES AG , MAKHRATCHEV KONSTANTIN , VALCORE JOHN
- Assignee: LAM RES CORP,LAM RES AG,MAKHRATCHEV KONSTANTIN,VALCORE JOHN
- Current Assignee: LAM RES CORP,LAM RES AG,MAKHRATCHEV KONSTANTIN,VALCORE JOHN
- Priority: US54529309 2009-08-21
- Main IPC: H01L21/3065
- IPC: H01L21/3065 ; H01L21/205 ; H01L21/66
Abstract:
A device for use in a wafer processing chamber having a plasma forming volume and a hot edge ring. The hot edge ring has a first surface and a second surface. The first surface is in contact with the plasma forming volume. The second surface is not in contact with the plasma forming volume. The device includes a detector operable to contact the second surface of the hot edge ring. The detector can detect a parameter of the hot edge ring and can provide a detected signal based on the detected parameter.
Information query
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