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:
Dec. 30, 2014
Filed:
Mar. 14, 2011
Chen LI, Pudong, CN;
Yong Wang, Pudong, CN;
Shoumian Chen, Pudong, CN;
Shanghai IC R&D Center Co., Ltd, Shanghai, CN;
Abstract
A radio frequency identification (RFID) device is disclosed. The RFID device includes a silicon substrate having a top side and a bottom side. The RFID device also includes a plurality of circuitry layers formed on the top side of the substrate, and the plurality of circuitry layers include at least a core circuitry and an on-chip antenna. Further, the RFID device includes a plurality of deep openings formed in the substrate on the bottom side under the plurality of circuitry layers. The plurality of deep openings are arranged in an array and through a substantial portion of the substrate, and a remaining portion of the substrate unreached by the plurality of deep openings separates the plurality of deep openings and the plurality of circuitry layers.