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公开(公告)号:US20140103498A1
公开(公告)日:2014-04-17
申请号:US14136081
申请日:2013-12-20
Applicant: Micron Technology, Inc.
Inventor: Prashant Raghu , Yi Yang
IPC: H01L23/00
CPC classification number: H01L23/564 , C09K13/04 , H01L21/31111 , H01L21/31144 , H01L2924/0002 , H01L2924/00
Abstract: Methods and etchant compositions for wet etching to selectively remove a hafnium aluminum oxide (HfAlOx) material relative to silicon oxide (SiOx) are provided.
Abstract translation: 提供了用于湿蚀刻以相对于氧化硅(SiO x)选择性去除铪氧化铝(HfAlO x)材料的方法和蚀刻剂组合物。