Method of making radio frequency identification tags
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United States of America Patent
Stats
-
Nov 23, 2004
Grant Date -
Jun 12, 2003
app pub date -
Dec 13, 2002
filing date -
May 19, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A radio frequency identification tag is made with a printed antenna coil integrated on a flexible substrate, and an integrated circuit area of the substrate adjacent to the antenna coil for carrying circuit elements. The radio frequency identification tag is designed to be sufficiently robust to withstand the rigors of mail efficiency processing measurement applications. Robustness is accomplished by encapsulating a sensing circuit formed on the flexible substrate thereby forming a semi-rigid area on the substrate and leaving the antenna portion of the substrate flexible.
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