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:
Feb. 05, 2002
Filed:
Feb. 05, 2001
Wasao Takasugi, Higashiyamato, JP;
Fumiyuki Inose, Tokorozawa, JP;
Hitachi Maxell, Ltd., Osaka, JP;
Abstract
A compact noncontact communication semiconductor device having a multidirectional or omnidirectional antenna and usable in a minuscule space to which the applications have conventionally been difficult is provided. The outer peripheral portion of a spherical IC is covered with an insulating layer having a thickness equal to or larger than the diameter of the IC , and antenna patterns are formed on the surface of the insulating layer . The antenna patterns can be configured either with a winding or by microprocessing using etching or laser beam, for example, for the conductive film formed on the surface of the insulating layer . The antenna patterns and the circuit pattern formed on the surface of the IC are interconnected via a through hole