发明申请
US20120288797A1 PHOTORESIST COMPOSITIONS AND METHODS OF USE IN HIGH INDEX IMMERSION LITHOGRAPHY 审中-公开
光电组合物及其在高折射刻蚀中的应用方法

PHOTORESIST COMPOSITIONS AND METHODS OF USE IN HIGH INDEX IMMERSION LITHOGRAPHY
摘要:
The present invention relates to a composition comprising a photoresist polymer and a fluoropolymer. In one embodiment, the fluoropolymer comprises a first monomer having a pendant group selected from alicyclic bis-hexafluoroisopropanol and aryl bis-hexafluoroisopropanol and preferably a second monomer selected from fluorinated styrene and fluorinated vinyl ether. The invention composition has improved receding contact angles with high refractive index hydrocarbon fluids used in immersion lithography and, thereby, provides improved performance in immersion lithography.
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