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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING MULTILAYER PRINTED WIRING BOARD
Document Type and Number:
Japanese Patent JPH1013035
Kind Code:
A
Abstract:

To provide a method with improved mass-production property for manufacturing a multilayer printed wiring board with electronic parts mounting holes and a through hole, by opening the hole for keeping electronic parts without cutting and machining the substrate of an outermost layer.

In a method, a lamination body 10 is formed while a hole 2 for keeping electronic parts is being formed, a lid body 7 for covering the opening end face of the hole 2 for mounting electronic parts and an adhesive member 4 for surrounding the outer periphery of the lid body 7 are arranged on the surface of the lamination body 10, a copper foil is arranged, laminated, and adhered for forming a multilayer board, a through hole is formed, an outer- layer circuit is formed, the lid 7 is eliminated and the hole 2 for mounting electronic parts is opened, and a conductor circuit 5 in the hole 2 for mounting electronic parts is placed. In this case, the lid body 7 has a step while it consists of a small part 15 and a large part 16, the small part 15 is engaged to the hole 2 for mounting electronic parts, and the large part 16 is brought into contact with the surface of the lamination body 10 around the hole 2 for mounting electronic parts.


Inventors:
GOTOU YASUSHI
MIYOSHI MASANORI
Application Number:
JP15816396A
Publication Date:
January 16, 1998
Filing Date:
June 19, 1996
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
H05K3/46; H01L23/02; H01L23/04; H01L23/12; H01L23/522; H01L23/538; (IPC1-7): H05K3/46; H01L23/04; H01L23/12; H01L23/522
Attorney, Agent or Firm:
Shigeji Sato (1 person outside)