Invention Grant
US09523913B2 Pattern forming method, actinic ray-sensitive or radiation-sensitive resin composition, resist film, method for manufacturing electronic device, and electronic device 有权
图案形成方法,光化射线敏感或辐射敏感性树脂组合物,抗蚀剂膜,电子器件的制造方法和电子器件

Pattern forming method, actinic ray-sensitive or radiation-sensitive resin composition, resist film, method for manufacturing electronic device, and electronic device
Abstract:
A pattern forming method comprises (i) a step of forming a film by using an actinic ray-sensitive or radiation-sensitive resin composition containing: (A) a resin containing a repeating unit having a group capable of decomposing by the action of an acid to produce a polar group, (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation, and (C) a solvent, (ii) a step of exposing the film, and (iii) a step of developing the exposed film by using an organic solvent-containing developer to form a negative pattern, wherein the content of a repeating unit represented by the following formula (I) is less than 20 mol % based on all repeating units in the resin (A) and the resin (A) contains a repeating unit having a non-phenolic aromatic group other than the repeating unit represented by the specific formula.
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