Patent ID: 8274075

Claim:
An electronic device comprising a semiconductor component and a dielectric material, wherein the dielectric material comprises a crosslinked polymeric material comprising a thermally cured product of a precursor composition, the precursor composition comprising: (1) a polymeric component and a thermally curable crosslinker, (2) a thermally curable polymeric crosslinker, or both (1) and (2), wherein: the thermally curable crosslinker of (1) has the formula: (X) 3-m (Y) m Si—Z—Si(Y) m (X) 3-m , and the thermally curable polymeric crosslinker of (2) comprises a pendant group comprising a crosslinking moiety having the formula: -Q-Si(Y) m (X) 3-m , wherein: Q, at each occurrence, independently is selected from the group consisting of -L-, —O—,—O-L, -L-O—, —NR 4 —, —NR 4 -L-, -L-NR 4 —, and a covalent bond; X, at each occurrence, independently is selected from the group consisting of a halogen, —NR 1 R 2 , —OR 3 , and —OC(O)R 3 ; Y, at each occurrence, independently is selected from the group consisting of H, a C 1-6 alkyl group, and a C 1-6 haloalkyl group; Z is Q-W-Q, provided that Q and W do not combine to form a moiety selected from the group consisting of —O—, a divalent C 1-20 alkyl group, and a covalent bond; and m, at each occurrence, independently is 0, 1, or 2; wherein: L, at each occurrence, independently is a divalent C 1-10 alkyl group or a divalent C 1-10 haloalkyl group, each of which optionally is substituted with 1-4 R 4 groups; W is selected from the group consisting of —SiXX—, —SiXY—, —SiYY—, —SiXX—O—, —O—SiXX—, —SiXY—O—, —O—SiXY—, —SiYY—O—, —O—SiYY—, —O—{[CR 4 2 ) t —O] p —[CR 5 2 ) t- O] q }—, a divalent C 6-14 aryl group, a divalent 5-14 membered heteroaryl group, and a covalent bond, wherein each of the divalent C 6-14 aryl group and the divalent 5-14 membered heteroaryl group is optionally substituted with 1-4 R 4 groups; R 1 and R 2 independently are selected from the group consisting of H, a C 1-6 alkyl group, a C 6-14 aryl group, a 5-14 membered heteroaryl group, a —C 1-6 alkyl-C 6-14 aryl group, and a —C 1-6 alkyl-5-14 membered heteroaryl group; R 3 is selected from the group consisting of H, a C 1-6 haloalkyl group, a C 2-6 alkenyl group, a C 2-6 alkynyl group, a C 6-14 aryl group, a 5-14 membered heteroaryl group, a —C 1-6 alkyl group, C 6-14 aryl group, and a —C 1-6 alkyl-5,14 membered heteroaryl group; R 4 and R 5 , at each occurrence, independently are selected from the group consisting of H, a halogen, a C 1-6 alkyl group, a C 1-6 haloalkyl group, a C 6-14 aryl group, a 5-14 membered heteroaryl group, a —C 1-6 alkyl —C 6-14 aryl group, a —C 1-6 alkyl-5-14 membered heteroaryl group, and -Q-Si(Y) m (X) 3-m ; p is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 or 19; and q is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20, provided that p+q≦20; and t, at each occurrence, independently is 1, 2, 3, 4, 5, or 6.