发明授权
US06921622B2 Photoresist monomers, polymers thereof and photoresist compositions containing the same 失效
光致抗蚀剂单体,其聚合物和含有它们的光致抗蚀剂组合物

Photoresist monomers, polymers thereof and photoresist compositions containing the same
摘要:
Photoresist monomers of following Formula 1, photoresist polymers thereof, and photoresist compositions containing the same. The photoresist polymer includes a repeating unit comprising the photoresist monomer of Formula 1 as a comonomer and the photoresist composition containing the same have excellent etching resistance, heat resistance and adhesiveness to a wafer, and is developable in aqueous tetramethylammonium hydroxide (TMAH) solution. In addition, the photoresist composition has low light absorbance at 157 nm wavelength, and thus is suitable for a photolithography process using ultraviolet light sources such as VUV (157 nm) in fabricating a minute circuit for a high integration semiconductor device
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