发明公开
- 专利标题: Method of etching silicon carbide
- 专利标题(中): Verfahren zumÄtzenvon Siliziumkarbid
-
申请号: EP96115214.7申请日: 1996-09-23
-
公开(公告)号: EP0767490A1公开(公告)日: 1997-04-09
- 发明人: Thero, Christine , Norton, Patricia A.
- 申请人: MOTOROLA, INC.
- 申请人地址: 1303 East Algonquin Road Schaumburg, IL 60196 US
- 专利权人: MOTOROLA, INC.
- 当前专利权人: MOTOROLA, INC.
- 当前专利权人地址: 1303 East Algonquin Road Schaumburg, IL 60196 US
- 代理机构: Spaulding, Sarah Jane
- 优先权: US538064 19951002
- 主分类号: H01L21/467
- IPC分类号: H01L21/467 ; H01L21/465
摘要:
A mask (12) is applied to a silicon carbide substrate (11) in order to etch the substrate (11). The material used for the mask (12) has a Mohs hardness factor greater than 4 in order to prevent sputtering material from the mask (12) onto the substrate (11). An oxygen and sulfur hexafluoride plasma is utilized to perform the etch.
信息查询
IPC分类: