发明授权
- 专利标题: Heat resistant positive resists and method for preparing heat-resistant relief structures
- 专利标题(中): 耐热正性抗蚀剂和制备耐热浮雕结构的方法
-
申请号: US191566申请日: 1988-05-09
-
公开(公告)号: US4849051A公开(公告)日: 1989-07-18
- 发明人: Hellmut Ahne , Albert Hammerschmidt
- 申请人: Hellmut Ahne , Albert Hammerschmidt
- 申请人地址: DEX Berlin & Munich
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DEX Berlin & Munich
- 优先权: DEX3716627 19870518
- 主分类号: C08G69/26
- IPC分类号: C08G69/26 ; C08G69/00 ; C08G69/42 ; C08G73/22 ; C08K5/23 ; C08L79/04 ; G03C1/00 ; G03C1/72 ; G03F7/022 ; G03F7/023 ; G03F7/039 ; H01L21/027
摘要:
The invention provides heat-resistant positive resists and methods for preparing heat-resistant relief structures therefrom. The positive resists are based upon polybenzoxazole precursor stages and diazoquinones. The polybenzoxazole precursor stages are hydroxypolyamides with the following structure: ##STR1## where R, R*, R.sub.1 and R.sub.1 * are aromatic groups; n.sub.1 and n.sub.2 =1 to 100; and R.noteq.R* and/or R.sub.1 .noteq.R.sub.1 *.
公开/授权文献
- US6080703A Method of making TIBiBaCaCuO based superconductors 公开/授权日:2000-06-27
信息查询