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:
Sep. 26, 2000

Filed:

Sep. 23, 1999
Applicant:
Inventors:

Hidehiko Kira, Kawasaki, JP;

Kenji Kobae, Kawasaki, JP;

Norio Kainuma, Kawasaki, JP;

Naoki Ishikawa, Kawasaki, JP;

Satoshi Emoto, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
29840 ; 29940 ; 29832 ;
Abstract

In a method of production of a multichip package module, rough-pitch bare chips are positioned at first locations on a printed-circuit board, and the rough-pitch bare chips are temporarily attached to the board at the first locations. The rough-pitch bare chips are mounted on the board at the same time by applying heat and pressure to the rough-pitch bare chips simultaneously. A respective one of fine-pitch bare chips is positioned at a respective one of second locations on the board other than the first locations, and the respective one of the fine-pitch bare chips is mounted on the board by applying heat and pressure to the fine-pitch bare chips individually, in order to produce the multichip package module.


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