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

Claim 2:
3. The molecular resist composition of claim 1 wherein X− is nitrate ion, hydrogensulfate ion, hydrogencarbonate ion, tetraphenylborate ion, or an anion having any one of the formulae (5) to (8):, wherein R31 is a C1-C40 hydrocarbyl group which may contain a heteroatom, exclusive of a hydrocarbyl group in which hydrogen on α-carbon relative to the carboxy group is substituted by fluorine or trifluoromethyl,
R41 and R42 are each independently a C1-C40 hydrocarbyl group which may contain a heteroatom, exclusive of a hydrocarbyl group in which hydrogen on α-carbon relative to the sulfonyl group is substituted by fluorine or trifluoromethyl, R41 and R42 may bond together to form a ring with the sulfur atoms to which they are attached and intervening atom,
R51, R52 and R53 are each independently a C1-C40 hydrocarbyl group which may contain a heteroatom, exclusive of a hydrocarbyl group in which hydrogen on α-carbon relative to the sulfonyl group is substituted by fluorine or trifluoromethyl, R51 and R52 may bond together to form a ring with the sulfur atoms to which they are attached and intervening atom,
R61 is fluorine or a C1-C10 fluorinated hydrocarbyl group which may contain a hydroxy moiety, ether bond or ester bond, R62 is hydrogen or a C1-C20 hydrocarbyl group which may contain a hydroxy moiety, ether bond or ester bond, R61 and R62 may bond together to form a ring with the atoms to which they are attached.