The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 07, 2005

Filed:

Apr. 01, 2002
Applicants:

Hiroshi Yamazaki, Ibaraki, JP;

Mineyoshi Hasegawa, Ibaraki, JP;

Satoshi Tanigawa, Ibaraki, JP;

Inventors:

Hiroshi Yamazaki, Ibaraki, JP;

Mineyoshi Hasegawa, Ibaraki, JP;

Satoshi Tanigawa, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L021/44 ;
U.S. Cl.
CPC ...
Abstract

First and second metal foil layers are laminated on opposite surfaces of a first insulating layer to form a first board. Then, the first and second metal foil layers are formed into predetermined conductor patterns respectively. Then, second and third insulating layers of second and third boards formed separately from the first board are laminated on the first and second metal foil layers through first and second adhesive layers respectively. Then, a thin layer portion is removed and thick layer portions are formed into predetermined conductor patterns respectively in third and fourth metal foil layers of the second and third boards.


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