Invention Grant
- Patent Title: Halogenated anti-reflective coatings
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Application No.: US09679661Application Date: 2000-10-04
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Publication No.: US06495305B1Publication Date: 2002-12-17
- Inventor: Tomoyuki Enomoto , Ken-Ichi Mizusawa , Shin-Ya Arase , Rama Puligadda
- Applicant: Tomoyuki Enomoto , Ken-Ichi Mizusawa , Shin-Ya Arase , Rama Puligadda
- Main IPC: G03F7004
- IPC: G03F7004

Abstract:
Anti-reflective coatings formed from new polymers and having high etch rates are provided. Broadly, the coatings are formed from a polymer binder and a light attenuating compound. The polymer binder has halogen atoms bonded thereto, preferably to functional groups on the polymer binder rather than to the polymer backbone. Preferred polymer binders comprise acrylic polymers while it is preferred that the halogenated functional groups of the polymer binders be dihalogenated, and more preferably trihalogenated, with chlorine, fluorine, or bromine atoms.
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