| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive photosensitive resin compsn. having high sensitiv ity, high resolution and high heat resistance by incorporating a resin which is soluble in an alkali soln., a specified polyphenol compd., a compd. which produces acid by irradiation of active chemical rays, and a vinyl polymer having such groups on the side chains that increase solubility with an alkali soln. by acid catalyst reaction. SOLUTION: This resin compsn. consists of (a) a resin solubble in an alkali soln., (b) a polyphenol compd. expressed by formula I or formula II, (c) a compd. which produces acid by irradiation of active chemical rays, and (d) a vinyl polymer having such a group in the side chain that is decomposed by acid and increases solubility with an alkali soln. by acid catalyst reaction. In formula I, R<1> and R<2> are 1-4C alkyl groups, aryl groups, etc., f and g are 0, 1 or 2, and h and i are 1, 2 or 3. In formula II, R<5> and R<6> are 1-3C alkyl groups, j and k are 0, 1 or 2, and 1 and m are 1, 2 or 3. |
