US 2020/0050105 Al  108  Feb. 13, 2020  2.  The resist composition of claim  1  wherein the amine  compound has the formula (A):  wherein  R 1  is hydroxyl,  C 1 -C$_{6 }$ alkyl group,  C 1 -C$_{6 }$ alkoxy  group,  C$_{2}$-C$_{6 }$ acyloxy group, fluorine, chlorine, bromine,  amino group,  -NR 1 A----C(=0)-R 1$_{B,}$ or  -NR 1 A----C  (=0)-0-R 1$_{B, }$ R 1 A  is hydrogen or a  C 1 -C$_{6 }$ alkyl group,  RIB  is a  C$_{1 }$-C$_{6 }$ alkyl,  C$_{2}$-C$_{8 }$ alkenyl,  CcC$_{12 }$ aryl or  C$_{7}$-C$_{13 }$ aralkyl group,  3.  The resist composition of claim  1,  further comprising  an acid generator capable of generating a sulfonic acid,  imide acid or methide acid.  4.  The resist composition of claim  1,  further comprising  an organic solvent.  5.  The resist composition of claim  1  wherein the base  polymer comprises recurring units having the formula (al)  or recurring units having the formula (a2):  wherein  RA  is each independently hydrogen or methyl, R 11  and  R  12  each are an acid labile group, Y 1  is a single bond,  phenylene group, naphthylene group, or  C$_{1 }$-C$_{12 }$ linking  group containing at least one moiety selected from ester  bond and lactone ring, and Y $^{2 }$is a single bond or ester bond.  6.  The resist composition of claim  5  which is a chemically  amplified positive resist composition.  7.  The resist composition of claim  1  wherein the base  polymer is free of an acid labile group.  8.  The resist composition of claim  7  which is a chemically  amplified negative resist composition.  9.  The resist composition of claim  1  wherein the base  polymer further comprises recurring units of at least one  type selected from recurring units having the formulae (fl)  to (f3):  wherein  RA  is each independently hydrogen or methyl,  Z 1  is a single bond, phenylene group,  ---O-Z 11 -,  ----C(=O)---O-Z 11 - or  ----C(=O)-NH-Z 11 -,  Z 11  is a  C$_{1 }$-C$_{6 }$ alkanediyl group,  C$_{2}$-C$_{6 }$ alkenediyl  group, or phenylene group, which may contain a car› bonyl, ester bond, ether bond or hydroxyl moiety,  Z 2  is a single bond,  -Z 21 -C(=0)---0-, -Z 21 -0- or  -Z 21 -0----C(=0)-, Z 21  is a  C 1 -C$_{12 }$ alkanediyl  group which may contain a carbonyl moiety, ester bond  or ether bond,  Z 3  is a single bond, methylene, ethylene, phenylene,  fluorinated phenylene,  -O-Z 31 -, ----C(=0)-0- Z31-,  or  ----C(=0)-NH-Z 31 -, Z 31  is a C 1 -C$_{6 }$ alkanediyl group, C$_{2}$ -C$_{6 }$ alkenediyl group, phenylene  group, fluorinated phenylene group, or trifluoromethyl› substituted phenylene group, which may contain a  carbonyl moiety, ester bond, ether bond or hydroxy  moiety,  R 2  is hydrogen, nitro, or a  C$_{1 }$-C$_{20 }$ monovalent hydrocar› bon group which may contain at least one moiety  selected from hydroxyl, carboxyl, thiol, ether bond,  ester bond, nitro, cyano, halogen and amino moiety, in  case of p= 1, R  $^{2 }$may bond together to form a ring with  the nitrogen atom to which they are attached, the ring  optionally containing a double bond, oxygen, sulfur or  nitrogen, or  R $^{2 }$and X  may bond together to form a ring  with the nitrogen atom to which they are attached, the  ring optionally containing a double bond, oxygen,  sulfur or nitrogen,  X is a C$_{1 }$-C$_{20 }$ divalent hydrocarbon group which may  contain at least moiety selected from ester bond and  ether bond,  m and n are independently an integer meeting lsms5,  0sns4 and lsm+ns5, and pis 1, 2 or 3.  (A)  (al)  (a2)  ~  y2  OR12  (fl)  (f2)  R23  I  +s-R24  I  R2s  (fJ) 