Multilayer wiring structure

Details Multilayer wiring structure Multilayer wiring structure

1996-08-14

1999-03-30

Kincaid, Kristine

Electricity: conductors and insulators

Conduits, cables or conductors

Preformed panel circuit arrangement

361795, 428209, H05K 100

Patent

active

058892338

ABSTRACT:
A multilayer wiring structure having a flame-retardant property corresponding to the V-0 class in the UL 94 standard is provided without degrading the inherent properties of a benzocyclobutene resin. The multilayer wiring structure contains a lower-level wiring layer formed on a base material, a lower-level interlayer insulating layer formed to cover the lower-level wiring layer, and an upper-level wiring layer formed on the interlayer insulating layer, an upper-level interlayer insulating layer formed to cover the upper-level wiring layer, and a protection layer formed to cover the upper-level interlayer insulating layer. Each of the lower- and upper-level interlayer insulating layers is made of a benzocyclobutene resin. The protection layer has a flame-retardant or non-flammable property corresponding to the V-0 class in the UL 94 standard. The protection layer may be made of a flame-retardant material such as a fluororesin, a polyimide resin or an epoxy resin. The protection layer may be made of a non-flammable material such as silicon dioxide or silicon nitride.

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