Patent ID: 8758976
Filing Date: 2014-06-24
Classification: G03F,H01L

Abstract:
1. A positive photosensitive polyimide composition comprising: a) a polyimide that includes the repeating unit of Formula 1 wherein m is an integer in the range of 1 to 30, n is an integer in the range of 1 to 10, X is selected from the group consisting of tetravalent aromatic organic groups of Formulas a to k Y 1 is selected from the group consisting of the divalent aromatic organic groups and Y 2 is a divalent silicon based substituent group of formula 3: wherein p is an integer in the range of 3 to 5, R each independently are selected from the group consisting of —CH 3 , —CH 2 CH 3 , and —CH 2 CH 2 CH 3 and may be the same or different from each other, and Ra and Rb each independently are a straight- or branched-chain alkylene group having 3 to 5 carbon atoms and may be the same or different from each other; b) a polyamic acid that includes 100 mol % of the repeating unit of Formula 2 wherein 1 is an integer in the range of 1 to 20, X is selected from the group consisting of the tetravalent aromatic organic groups of Formulas a to k above, and Y 2 is a divalent silicon based substituent group of formula 3: wherein p is an integer in the range of 3 to 5, R each independently are selected from the group consisting of —CH 3 , —CH 2 CH 3 , and —CH 2 CH 2 CH 3 and may be the same or different from each other, and Ra and Rb each independently are a straight- or branched-chain alkylene group having 3 to 5 carbon atoms and may be the same or different from each other; and c) a photoactive compound.