Title:
ADHESIVE FILM, MULTILAYER PRINTED WIRING BOARD USING ADHESIVE FILM, AND METHOD FOR MANUFACTURING MULTILAYER PRINTED WIRING BOARD
Document Type and Number:
WIPO Patent Application WO/2013/005847
Kind Code:
A1
Abstract:
This adhesive film comprises a resin composition layer (layer (A)) for an interlayer insulating layer, a thermosetting resin composition layer (layer (B)) and a supporting film (layer (C)), and the layer (C), the layer (A) and the layer (B) are sequentially arranged in this order. The layer (A) is formed of a resin composition that contains a thermosetting resin (a1) and an inorganic filler (b1) having a specific surface area of 20 m2/g or more, with the mass ratio of the thermosetting resin (a1) to the inorganic filler (b1) being within the range from 30:1 to 2:1. The layer (B) contains a thermosetting resin composition that is in a solid state at a temperature less than 40˚C but is melted at a temperature of 40˚C or more but less than 140˚C. Consequently, this adhesive film is able to resolve problems in a laser process and a desmear process following the laser process and is capable of providing a conductive layer that has high adhesion strength even to an interlayer insulating layer having a smooth roughened surface state.
Inventors:
MATSUURA MASAHARU (JP)
OGAWA NOBUYUKI (JP)
FUJITA HIROAKI (JP)
FUKAI HIROYUKI (JP)
OGAWA NOBUYUKI (JP)
FUJITA HIROAKI (JP)
FUKAI HIROYUKI (JP)
Application Number:
PCT/JP2012/067395
Publication Date:
January 10, 2013
Filing Date:
July 06, 2012
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD (JP)
MATSUURA MASAHARU (JP)
OGAWA NOBUYUKI (JP)
FUJITA HIROAKI (JP)
FUKAI HIROYUKI (JP)
MATSUURA MASAHARU (JP)
OGAWA NOBUYUKI (JP)
FUJITA HIROAKI (JP)
FUKAI HIROYUKI (JP)
International Classes:
H05K3/46; C09J7/20; H05K3/38
Domestic Patent References:
| WO2010050472A1 | 2010-05-06 | |||
| WO2003047324A1 | 2003-06-05 |
Foreign References:
| JP2011086729A | 2011-04-28 | |||
| JP2010135477A | 2010-06-17 | |||
| JP2009119855A | 2009-06-04 | |||
| JP2003277579A | 2003-10-02 | |||
| JP2010001403A | 2010-01-07 | |||
| JP2006037083A | 2006-02-09 | |||
| JP2010260971A | 2010-11-18 | |||
| JPH0199288A | 1989-04-18 | |||
| JP2008130796A | 2008-06-05 |
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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Claims: