Patent ID: 6153349
Filing Date: 2000-11-28
Classification: G03F,Y10S

Abstract:
A photoresist composition comprising a resin having, in one molecule, the respective structural units represented by the following formulas (I), (II) and (III): ##STR11## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.11, R.sup.12, R.sup.13, R.sup.21, R.sup.22 and R.sup.23 each independently represents hydrogen or an alkyl having 1 to 4 carbon atoms; one of R.sup.14, R.sup.15 and R.sup.16 represents an aliphatic hydrocarbon residue and the rest each independently represents hydrogen or an aliphatic hydrocarbon residue, or two or three of R.sup.14, R.sup.15 and R.sup.16 are combined each other together with a carbon atom to which they are bonded to form a hydrocarbon ring; and R represents a group cleavable by an action of an acid.