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:
Jul. 28, 1998
Filed:
Mar. 25, 1996
Michael J Brady, Brewster, NY (US);
Normand Gilles Favreau, Dunham, CA;
Francois Guindon, Stukely sud Qc, CA;
Paul Andrew Moskowitz, Yorktown Heights, NY (US);
Philip Murphy, New Fairfield, CT (US);
IBM Corporation, Armonk, NY (US);
Abstract
A novel radio frequency transponder (tag) with a minimum of components and connects is thin and flexible because these components and connects can be unsupported by a substrate layer. This is accomplished by using a conducting leadframe structure not only as a connection medium but also as a circuit element, i.e., the transponder antenna. In various preferred embodiments, the leadframe is mechanically positioned and fixably attached to a circuit chip so that the leadframe (antenna) is self supporting. A protective coating can be added where the leadframe is attached to the circuit chip. Further a protective surrounding can envelops the entire leadframe antenna, circuit chip, and, if provided, the protective coating.