Patent ID: 8808976
Filing Date: 2014-08-19
Classification: G03F

Abstract:
1. A positive photoresist developer comprising a basic aqueous solution containing a nonionic surfactant and an ammonium compound, wherein said nonionic surfactant has one or more kinds of alkyleneoxide group repeating structure in which 11˜70 units of said alkyleneoxide group are included and content of said nonionic surfactant is 0.5˜10 mass % to total mass of said photoresist developer as 100 mass %; said ammonium compound is represented by a following general formula (1): [In the formula (1), R and content of said ammonium compound is 0.01˜5.0 mass % to total mass of said photoresist developer as 100 mass %; and a basic compound to make said basic aqueous solution basic is represented by a following general formula (3): [In the formula (3), each of R said nonionic surfactant is represented by a following general formula (2): [In the formula (2), a is an integer of 1 or 2; each of R wherein l and m are each independently an integer of 3-40; n is an integer of 1-30; where a is 1, l+m+n is 11-70; where a is 2, l+m+n is 6-35; and where a is 2, two {(YO)