发明授权
- 专利标题: Organic anti-reflective coating polymer and preparation thereof
- 专利标题(中): 有机抗反射涂层聚合物及其制备方法
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申请号: US09747364申请日: 2000-12-22
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公开(公告)号: US06548613B2公开(公告)日: 2003-04-15
- 发明人: Min-Ho Jung , Sung-Eun Hong , Jae-Chang Jung , Geun-Su Lee , Ki-Ho Baik
- 申请人: Min-Ho Jung , Sung-Eun Hong , Jae-Chang Jung , Geun-Su Lee , Ki-Ho Baik
- 优先权: KR99-61344 19991223
- 主分类号: C08F22018
- IPC分类号: C08F22018
摘要:
The present invention provides a polymer that can be used as an anti-refelctive coating (ARC) polymer, an ARC composition comprising the same, methods for producing the same, and methods for using the same. The polymer of the present invention is particularly useful in a submicrolithographic process, for example, using KrF (248 nm), ArF (193 nm), or F2 (157 nm) laser as a light source. The polymer of the present invention comprises a chromophore that is capable of absorbing light at the wavelengths used in a submicrolithographic process. Thus, the ARC of the present invention significantly reduces or prevents back reflection of light and the problem of the CD alteration caused by the diffracted and/or reflected light. The ARC of the present invention also significantly reduces or eliminates the standing wave effect and reflective notching. Therefore, the polymer of the present invention can be used to produce a stable ultrafine pattern that is suitable in manufacturing of 64 M, 256 M, 1 G, 4 G and 16 G DRAM semiconductor devices. Moreover, the ARC of the present invention significantly improves the production yield, of such semiconductor devices.
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