Patent ID: 8415812

Claim:
A device, comprising a semiconductor wafer and a passivating layer disposed on the surface of the wafer, wherein the passivating layer is comprised of a polyimide polymer comprising a structure selected from the group consisting of structures I, II and III: wherein: each of R, R 3 and Q is independently selected from the group consisting of substituted or unsubstituted aliphatic, alkenyl, aromatic, heteroaromatic and siloxane moieties; R 2 in each of structures I, II and III is independently selected from the group consisting of H or methyl; R 4 is selected from the group consisting of substituted or unsubstituted linear, branched, cyclic aliphatic or alkenyl moieties having between 2 and about 500 carbon atoms, and substituted or unsubstituted aromatic moieties; n is an integer having the value between 1 to about 10; and the symbol depicts a macromolecular chain to which the structure II or III is covalently attached, with the further proviso that in the polyimide polymer, the molecular weight fraction of the combined contents of nitrogen and oxygen is less than about 20%.