Title:
INSULATOR, RESIN-BEARING METAL FOIL, CARRIER FILM, AND MULTILAYER PRINTED CIRCUIT BOARD
Document Type and Number:
Japanese Patent JP2004031712
Kind Code:
A
Abstract:
To provide a resin-bearing metal foil which is excellent in dielectric characteristics and cracking resistance, and to provide a multilayer printed circuit board.
The resin-bearing metal foil is provided with a resin layer comprising a benzocyclobutene resin and a liquid elastomer. Preferably, a specific styrene-butadiene copolymer should be used as the liquid elastomer. The multilayer printed circuit board is obtained by superposing the resin-bearing metal foil on one surface or each of both surfaces of an internal layer circuit board, followed by heating and pressurizing.
Inventors:
ONOZUKA TAKESHI
Application Number:
JP2002187052A
Publication Date:
January 29, 2004
Filing Date:
June 27, 2002
Export Citation:
Assignee:
SUMITOMO BAKELITE CO
International Classes:
H05K3/46; (IPC1-7): H05K3/46
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