초록 ▼

The invention is a radiofrequency identification tag comprising a semiconductor chip having radio frequency, logic, and memory circuits, and an antenna that are mounted on a substrate. The antenna may be used by the chip to modulate an incident RF signal to transfer information to a base station. Th

The invention is a radiofrequency identification tag comprising a semiconductor chip having radio frequency, logic, and memory circuits, and an antenna that are mounted on a substrate. The antenna may be used by the chip to modulate an incident RF signal to transfer information to a base station. The antenna comprises one or more lengths of thin wire that are connected directly to the chip by means of wire bonding. The chip and antenna combination are sealed with an organic film covering.

대표청구항 ▼

[ We claim:] [1.] An improved method of making a radio frequency tag which includes a semiconductor device with at least one pair of contacts and an antenna electrically connected to at least one pair of said at least one pair of contacts, the semiconductor device modulating and retransmitting a rad

[ We claim:] [1.] An improved method of making a radio frequency tag which includes a semiconductor device with at least one pair of contacts and an antenna electrically connected to at least one pair of said at least one pair of contacts, the semiconductor device modulating and retransmitting a radio frequency signal received by the antenna, the improved method comprising the steps of:attaching said semiconductor device to a supporting substrate;forming said antenna entirely of at least one wire having a diameter in the range of 25 microns to 250 microns by spooling wire from and positioning the spooled wire with a wire bonding machine;wire bonding said antenna to at least one pair of said at least one pair of contacts of said semiconductor device using said wire bonding machine; andattaching said antenna for support to said supporting substrate.