Low dielectric loss tangent films and wiring films

Details Low dielectric loss tangent films and wiring films Low dielectric loss tangent films and wiring films

2006-09-26

2006-09-26

Piziali, Andrew T. (Department: 1771)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S425000, C524S430000, C524S433000, C525S040000, C442S164000

Reexamination Certificate

active

07112627

ABSTRACT:
A curing low dielectric loss tangent film using a low dielectric loss tangent composition containing a polyfunctional styrene compound having excellent dielectric characteristics, and a wiring film using the same as an insulating layer are provided. The low dielectric loss tangent film contains a high molecular weight material and a crosslinking ingredient with a weight average molecular weight of 1000 or less having a plurality of styrene groups shown by the following general formula:(where R represents a hydrocarbon skeleton, R1, which may be identical or different with each other, represents a hydrogen atom or a hydrocarbon group of 1 to 20 carbon atoms, R2, R3and R4, which may be identical or different with each other, each represents a hydrogen atom or an alkyl group of 1 to 6 carbon atoms, m represents an integer of 1 to 4, and n represents an integer of 2 or greater).

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patent: 6521703 (2003-02-01), Zarnoch et al.

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