US 12,236,306 B2
Contactless information carrier
Kiyoshi Ohshima, Kyoto (JP); and Hideki Kobayashi, Kyoto (JP)
Assigned to SK-ELECTRONICS CO., LTD., Kyoto (JP)
Appl. No. 17/594,302
Filed by SK-ELECTRONICS CO., LTD., Kyoto (JP)
PCT Filed Apr. 7, 2020, PCT No. PCT/JP2020/015714
§ 371(c)(1), (2) Date Oct. 8, 2021,
PCT Pub. No. WO2020/209261, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. 2019-075071 (JP), filed on Apr. 10, 2019.
Prior Publication US 2022/0172019 A1, Jun. 2, 2022
Int. Cl. G08B 23/00 (2006.01); G06K 19/07 (2006.01); G06K 19/077 (2006.01); H01Q 1/22 (2006.01); H01Q 7/00 (2006.01)
CPC G06K 19/07779 (2013.01) [G06K 19/0723 (2013.01); G06K 19/07722 (2013.01); G06K 19/07775 (2013.01); H01Q 1/2208 (2013.01); H01Q 7/00 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A contactless information carrier, comprising:
an IC chip having a first electrode and a second electrode; and
a spiral wiring having a first end portion and a second end portion electrically connected to the first electrode and the second electrode, respectively, wherein:
the IC chip is provided with:
a first insulating film on the first electrode and the second electrode;
a first relay wiring on the first insulating film; and
a second insulating film on the first relay wiring;
the spiral wiring is formed on the second insulating film;
the first end portion and the second end portion are positioned on an inner peripheral side and an outer peripheral side of the spiral wiring, respectively;
the first electrode and the second electrode are positioned on the outer peripheral side of the spiral wiring; and
the first relay wiring:
is conductive and connected to the first electrode via a first connecting hole formed in the first insulating film and is connected to the first end portion via a third connecting hole formed in the second insulating film,
includes rectangular region comprising one side in an X-axis direction and another side in a Y-axis direction and diagonally including the first connecting hole and the third connecting hole;
wherein the first relay wiring is in a shape of a rectangle comprising a first side in the X-axis direction and a second side in the Y-axis direction, the spiral wiring is intersected on two intersecting sides of the rectangle in the X-axis direction and the Y-axis direction, respectively, and a respective length of the first side of the rectangle and the second side of the rectangle at each intersecting side with the spiral wiring is larger than a respective total wiring width of the spiral wiring.