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. 12, 2007
Filed:
Aug. 29, 2003
Nikhil V. Kelkar, San Jose, CA (US);
Sadanand R. Patil, San Jose, CA (US);
Cheol Hyun Han, Fremont, CA (US);
Nikhil V. Kelkar, San Jose, CA (US);
Sadanand R. Patil, San Jose, CA (US);
Cheol Hyun Han, Fremont, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
An apparatus and method for attaching antennae to RFID tags is disclosed. Included is the use of RFID tags having a symmetrical interconnect system for attaching one or more antennae, such that virtually any rotational orientation of the RFID tag will result in a successful antennae attachment. Two oversized and 'L' shaped gold-bumped poles can be arranged on the same side of a chip in an opposing fashion, such that at least one axis of symmetry is formed. Accordingly, virtually all rotational orientations of the chip are then acceptable when attaching a pair of opposing pole antenna leads. Alternatively, a pair of poles can be located on opposing chip surfaces, such that antenna substrates can attach to both the top and bottom of the chip to form a product 'sandwich,' whereby the rotational orientation of the chip is irrelevant at an antenna attachment step.