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:
Jun. 01, 2010
Filed:
Dec. 17, 2008
Yasuyuki Arai, Atsugi, JP;
Mai Akiba, Isehara, JP;
Yuko Tachimura, Atsugi, JP;
Yohei Kanno, Atsugi, JP;
Yasuyuki Arai, Atsugi, JP;
Mai Akiba, Isehara, JP;
Yuko Tachimura, Atsugi, JP;
Yohei Kanno, Atsugi, JP;
Semiconductor Energy Laboratory Co., Ltd, Atsugi-shi, Kanagawa-ken, unknown;
Abstract
In commercial products to which a non-contact type or contact type ID label or ID tag is attached and ID cards, there is fear that, due to a difference between coefficients of thermal expansion between an antenna for communication and a resin provided around the antenna, stress is applied to the resin with the larger coefficient of thermal expansion to break the resin. This contributes to a decrease in manufacturing yield, lifetime, and reliability of an ID label or the like. In an article such as an ID label, an ID tag, and an ID card according to the present invention, a filler is included in a filling layer provided around an antenna forming an ID label, an ID tag, and an ID card so that the difference in coefficient of thermal expansion between the antenna and the filling layer can be reduced. This makes it possible to ease generation of stress due to the difference in coefficient of thermal expansion and prevent peeling and cracks of the filling layer.