Printed wiring board and semiconductor device and processes to prepare the same

A photosensitive resin composition which comprises an oxygen sensitizer and a cis-diene-substituted polyamic acid or polyimide having a structural unit represented by general formula [3]:

• 32
• wherein at least one of R13, R14, R15, R16, R17, R18, R19 and R20 represents a monovalent organic group having a cis-diene structure;
• the rest of R13, R14, R15, R16, R17, R18, R19 and R20 each independently represents hydrogen, hydroxyl group, carboxyl group, an alkyl group having 1 to 20 carbon atoms or an alkoxy group having 1 to 20 carbon atoms;
• and R21 represents oxygen, sulfur or an alkylene group, an alkylidene group or an alkyleneoxy group having 1 to 4 carbon atoms.

A photosensitive resin composition which comprises an oxygen sensitizer and a-cis-diene-substituted polyamic acid or polyimide having a structural unit represented by general formula [4]:

• 33
• wherein at least one of R22, R23, R24 and R25 represents a monovalent organic group having a cis-diene structure;
• the rest of R22, R23, R24 and R25 each independently represents hydrogen, hydroxyl group, carboxyl group, an alkyl group having 1 to 20 carbon atoms or an alkoxy group having 1 to 20 carbon atoms;
• X1 and X2 each independently represents oxygen, sulfur or an alkylene group, an alkylidene group or an alkyleneoxy group which each has 1 to 4 carbon atoms and may have substituents;
• Ar1 and Ar2 each independently represents a divalent aromatic group;
• and l1, l2, m1 and m2 each independently represents 0 or 1 except that ml represents 1 when l1 represents 1 and m2 represents 1 when l2 represents 1.

A photosensitive resin composition which comprises an oxygen sensitizer and a cis-diene-substituted polyamic acid or polyimide having a structural unit represented by general formula [5]:

• 34
• wherein at least one of R26, R27, R28, R29, R30, R31, R32 and R33 represents a monovalent organic group having a cis-diene structure;
• the rest of R26, R27, R28, R29, R30, R31, R32 and R33 each independently represents hydrogen atom, hydroxyl group, carboxyl group, an alkyl group having 1 to 20 carbon atoms or an alkoxy group having 1 to 20 carbon atoms;
• Y1 represents oxygen, sulfur or an alkylene group, an alkylidene group or an alkyleneoxy group which each has 1 to 4 carbon atoms and may have substituents;
• and n1 represents 0 or 1.