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:
Apr. 17, 2007

Filed:

Oct. 08, 2003
Applicants:

Toshiki Naito, Ibaraki, JP;

Hiroshi Yamazaki, Ibaraki, JP;

Toshihiko Omote, Ibaraki, JP;

Inventors:

Toshiki Naito, Ibaraki, JP;

Hiroshi Yamazaki, Ibaraki, JP;

Toshihiko Omote, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/03 (2006.01);
U.S. Cl.
CPC ...
Abstract

Electric conductor patterns having inner leads arranged at a pitch of not larger than 60 μm are formed on a front surface of an insulating layer of a tape carrier for TAB. A reinforcing layer of stainless steel foil is formed on a rear surface of the insulating layer so as to be extend along a lengthwise direction at opposite side edge portions in a widthwise direction of the insulating layer. Accordingly, both dimensional accuracy and positional accuracy can be improved at the time of carrying the tape carrier for TAB or at the time of mounting and bonding electronic parts though the insulating layer can be formed so as to be thin.


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