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.
Patent No.:
Date of Patent:
Mar. 20, 2007
Filed:
Jul. 30, 2004
Atsusi Matsuda, Yamagata, JP;
Hidetaka Ohazama, Yamagata, JP;
Atsusi Matsuda, Yamagata, JP;
Hidetaka Ohazama, Yamagata, JP;
Tohoku Pioneer Corporation, Yamagata, JP;
Abstract
A flexible circuit board is provided to prevent unsuccessful interconnection between the wirings of the flexible circuit board and the output terminals of a semiconductor chip, the flexible circuit board having a plurality of sections of wirings of different sizes, each section including a pattern of wirings of the same size. The flexible circuit board has predetermined patterns of wirings on an insulating material base, and the wirings are electrically connected to the output terminals of a semiconductor chip. A pattern of the wirings of the same size forms a first wiring section, while another pattern of the wirings of the same size form a second wiring section. The flexible circuit board is provided with a pattern transition region between the neighboring wiring sections with wirings of different sizes to avoid unsuccessful interconnection which would be otherwise caused by the difference in size between the wirings.