发明授权
- 专利标题: Removable inorganic anti-reflection coating process
- 专利标题(中): 可拆卸的无机防反射涂层工艺
-
申请号: US09597122申请日: 2000-06-20
-
公开(公告)号: US06607984B1公开(公告)日: 2003-08-19
- 发明人: Gill Yong Lee , Scott D. Halle , Jochen Beintner
- 申请人: Gill Yong Lee , Scott D. Halle , Jochen Beintner
- 主分类号: H01L21302
- IPC分类号: H01L21302
摘要:
In accordance with the present invention, a method for employing and removing inorganic anti-reflection coatings, includes the steps of providing a first dielectric layer on a semiconductor device structure to be processed, the first dielectric layer being selectively removable relative to the semiconductor device structure, and forming an inorganic dielectric anti-reflection coating (DARC) on the first dielectric layer, the DARC being selectively removable relative to the first dielectric layer. A resist layer is patterned on the DARC. The resist is selectively removable relative to the DARC. The semiconductor device structure is etched, and the resist layer, the DARC and the first dielectric layer are selectively removed.
信息查询