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:
Oct. 30, 2012

Filed:

Jan. 17, 2008
Applicants:

Tatsuo Fukuda, Itabashi-ku, JP;

Masahito Nakabayashi, Itabashi-ku, JP;

Naofumi Izumi, Itabashi-ku, JP;

Inventors:

Tatsuo Fukuda, Itabashi-ku, JP;

Masahito Nakabayashi, Itabashi-ku, JP;

Naofumi Izumi, Itabashi-ku, JP;

Assignee:

Lintec Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

The method for producing a circuit substrate of the present invention is characterized in that the circuit substrate is produced using as sheet a circuit substrate sheet including an uncured layer a part of which, the part being other than a part at which a circuit chip is disposed, is selectively curable before or after disposal of said circuit chip, wherein the uncured layer has a softness that enables embedding of the circuit chip in the circuit substrate sheet upon pressing the circuit chip that has been disposed on a surface of the uncured layer. According to the method for producing the circuit substrate of the present invention, the circuit chip can be embedded inwards with high accuracy, and the circuit substrate can be produced easily with high accuracy.


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