Patent ID: 11940728
Assignee: SHIN-ETSU CHEMICAL CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC G  C | IPC C  G

Claim 1:
2. The molecular resist composition of claim 1 wherein Ar1, Ar2 and Ar3 are a group having the formula (2), (3) and (4), respectively:, wherein R1 to R21 are each independently hydrogen, hydroxy, cyano, halogen, a C1-C20 hydrocarbyl group which may contain a heteroatom, or a group having any one of formulae (1a) to (1c), at least one of R1 to R21 being a group having any one of formulae (1a) to (1c), p, q and r are each independently 0 or 1, the broken line designates a valence bond.