| 摘要 |
An RFID(Radio Frequency IDentification) tag mounting circuit board is provided to efficiently mount an RFIC on an electronic board and to manage the history of each component mounted on an electronic board. Printed patterns(2a,2b) are formed on a printed circuit board(5), and through holes(3) are formed in a direction of thickness of the printed circuit board. The printed patterns are connected to a printed pattern(2c) on the reverse surface side of the printed circuit board via the through holes. In other words, a stub for an impedance matching circuit is formed using the through holes. Since impedance matching is achieved in an IC chip(1), and two terminals of the IC chip are DC-connected to each other, this structure has the effect of improving the electrostatic discharge resistance of the IC chip. In the IC chip, an external antenna(40) is formed using a material based on a resin, such as PC(polycarbonate), PP(polypropylene), or PET(polyethylene terephthalate), as a structural material and is composed of antenna units, each of which is made up of a radio emission unit(41) and a field waveguide(42), and connections(43) which are connected to the IC chip. To connect the IC chip and the connections, it suffices to bring the connections into direct contact with pins of the IC chip or bring the connections into contact with the printed patterns connected to the IC chip. |
