Invention Grant
US07829243B2 Method for plasma etching a chromium layer suitable for photomask fabrication
失效
用于等离子体蚀刻适用于光掩模制造的铬层的方法
- Patent Title: Method for plasma etching a chromium layer suitable for photomask fabrication
- Patent Title (中): 用于等离子体蚀刻适用于光掩模制造的铬层的方法
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Application No.: US11044341Application Date: 2005-01-27
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Publication No.: US07829243B2Publication Date: 2010-11-09
- Inventor: Xiaoyi Chen , Michael Grimbergen , Madhavi Chandrachood , Jeffrey X. Tran , Ajay Kumar , Simon Tam , Ramesh Krishnamurthy
- Applicant: Xiaoyi Chen , Michael Grimbergen , Madhavi Chandrachood , Jeffrey X. Tran , Ajay Kumar , Simon Tam , Ramesh Krishnamurthy
- 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: G03F1/00
- IPC: G03F1/00

Abstract:
A method for etching a chromium layer is provided herein. In one embodiment, a method for etching a chromium layer includes providing a filmstack in an etching chamber, the filmstack having a chromium layer partially exposed through a patterned layer, providing at least one halogen containing process gas to a processing chamber, biasing the layer disposed on a substrate support in the processing chamber with a plurality of power pulses less than 600 Watts, and etching the chromium layer through a patterned mask. The method for plasma etching a chromium layer described herein is particularly suitable for fabricating photomasks.
Public/Granted literature
- US20060166107A1 Method for plasma etching a chromium layer suitable for photomask fabrication Public/Granted day:2006-07-27
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