Title:
PRODUCTION OF METAL FOIL CLAD LAMINATE
Document Type and Number:
Japanese Patent JPH09117987
Kind Code:
A
Abstract:
To produce a metal foil clad laminated sheet reduced in the generation of wrinkles.
A prepreg is formed by impregnating a base material with a resin and characterized by that the lowest melt viscosity at a temp. rising speed of 1.2°C/min is 2000-7000 poise and a K value (log poise/min) being a ratio of the melt viscosity of the resin logarithmically converted with respect to one min at 130°C is 0.20-0.30. Metal foil is arranged to the outermost layer of a laminate wherein the prepregs are superposed one upon another to be pressed thereto under heating. This method is especially effective in the production of the multilayered metal foil clad laminate wherein an inner circuit board is held between the prepregs.
Inventors:
KURATA KANJI
HIGASHIDA TOSHIYUKI
FUJITA KOICHI
HIGASHIDA TOSHIYUKI
FUJITA KOICHI
Application Number:
JP27804095A
Publication Date:
May 06, 1997
Filing Date:
October 25, 1995
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
B32B15/08; H05K1/03; H05K3/00; (IPC1-7): B32B15/08; H05K1/03; H05K3/00
Attorney, Agent or Firm:
Shigeji Sato (1 person outside)
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