Printed radio frequency sensing cards and fabricating methods therefor
First Claim
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1. A method for fabricating a printed radio frequency sensing card, said method comprising the steps of:
- (a) printing on one side of a printed circuit board substrate with a first coil circuit, and on other side of the printed circuit board substrate with a second coil circuit, (b) forming a through hole on said printed circuit board substrate, and forming a conductor in said through hole so that the first coil circuit and the second coil circuit are connected with said conductor into a single coil circuit having one end on said one side and said other side;
(c) forming an implantation hole on said printed circuit board substrate, mounting an identification IC to said implantation hole, and electrically connecting said identification IC with said two ends of said single coil circuit; and
(d) providing the implanted printed circuit board substrate from the step (c) with one or more protective layers laminated therewith.
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Abstract
A fabricating method of the printed radio frequency sensing card includes a first step in which a printed circuit board substrate is provided in two sides with a coil circuit and an implantation hole. These two coil circuits are connected by a through hole connection to form a single coil circuit having two ends. An identification IC is mounted to the implantation hole such that the identification IC is electrically connected with the ends of the single coil circuit at two points, which are on two surfaces of the identification IC.
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Citations
12 Claims
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1. A method for fabricating a printed radio frequency sensing card, said method comprising the steps of:
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(a) printing on one side of a printed circuit board substrate with a first coil circuit, and on other side of the printed circuit board substrate with a second coil circuit, (b) forming a through hole on said printed circuit board substrate, and forming a conductor in said through hole so that the first coil circuit and the second coil circuit are connected with said conductor into a single coil circuit having one end on said one side and said other side;
(c) forming an implantation hole on said printed circuit board substrate, mounting an identification IC to said implantation hole, and electrically connecting said identification IC with said two ends of said single coil circuit; and
(d) providing the implanted printed circuit board substrate from the step (c) with one or more protective layers laminated therewith. - View Dependent Claims (2, 3)
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4. A printed radio frequency sensing card comprising:
- one or more printed circuit board substrates; and
an identification IC;
wherein at least one of said printed circuit board substrates is provided with two printed coil circuits, which are on two sides of said at least one of said printed circuit board substrates and connected by a through hole connection to form a single coil circuit having one end on each of said two sides, and said identification IC is mounted to said at least one of said printed circuit board substrates and is electrically connected to said two ends of said single coil circuit. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
- one or more printed circuit board substrates; and
Specification