Patent ID: 6346296
Filing Date: 2002-02-12
Classification: C08G,H01L,H05K,Y10T

Abstract:
A method of producing a packaging substrate comprising:providing a first precursor having a first backbone and a first ethynyl group; providing a second precursor having a second backbone and a second ethynyl group; providing a crosslinker having at least a first and a second reactive group capable of forming a carbon-carbon bond; applying the first precursor, the second precursor, the crosslinker and a solvent onto a surface to form an electrically insulating layer; reacting the first ethynyl group with the first reactive group in a first carbon-carbon bond forming reaction and reacting the second ethynyl group with the second reactive group in a second carbon-carbon bond forming reaction, thereby crosslinking the first backbone with the second backbone to form the packaging substrate; and removing the solvent.