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. 30, 2010
Filed:
Oct. 24, 2006
Akira Muto, Tokyo, JP;
Tomokazu Tanaka, Kanagawa, JP;
Akira Muto, Tokyo, JP;
Tomokazu Tanaka, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A flexible printed circuit board has an insulation layer, a first signal wiring layer including a microstrip line, a second signal wiring layer including a signal connection terminal for allowing the microstrip line to connect the exterior connector electrically, and a ground conductive section having a ground connection terminal for connecting the exterior connector. The microstrip line and the signal connection terminal are connected to each other by a wiring via hole. The wiring via hole passes through the insulation layer, the first signal wiring layer, and the second signal wiring layer. The microstrip line has a taper section which gradually enlarges a width of the microstrip line toward the wiring via hole in the vicinity of the wiring via hole. The ground conductive section that corresponds to the microstrip line has a taper section with a shape matching the taper section of the microstrip line.