IC tag and method for production thereof
First Claim
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1. An IC tag comprising:
- a plane coil comprising a conductor wire coated with an electrically insulating layer, said wire being wound several times in a plane to form a spiral loop of wire, said plane coil having respective terminal portions and defining a central vacant area encircled by said wound wire; and
a semiconductor element having a thickness substantially the same as the thickness of said plane coil and arranged in said central vacant area in said plane, said semiconductor element having electrodes which are electrically connected to said respective terminal portions of the plane coil.
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Abstract
An IC tag includes a plane coil which is made by a conductor wire coated with an insulator wound several times in a plane, the plane coil having terminal portions and defining a central vacant area encircled by the wound wires. A semiconductor element is arranged in the central vacant area and placed in the plane and having a thickness substantially same as or smaller than a thickness of the plane coil, the semiconductor element having electrodes which are electrically connected to the terminal portions of the plane coil.
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Citations
17 Claims
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1. An IC tag comprising:
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a plane coil comprising a conductor wire coated with an electrically insulating layer, said wire being wound several times in a plane to form a spiral loop of wire, said plane coil having respective terminal portions and defining a central vacant area encircled by said wound wire; and
a semiconductor element having a thickness substantially the same as the thickness of said plane coil and arranged in said central vacant area in said plane, said semiconductor element having electrodes which are electrically connected to said respective terminal portions of the plane coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of producing an IC tag comprising the following steps of:
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winding a conductor wire coated with an insulator several times in a plane so as to form a plane coil to define a spiral loop of wire and a central vacant area encircled by said wound wire in which a semiconductor element can be arranged;
adhering a support film to one of surfaces of said plane coil so as to cover at least said central vacant area;
arranging said semiconductor element in said central vacant area of the plane coil so that said semiconductor element is supported by said support film; and
electrically connecting said semiconductor element to said plane coil. - View Dependent Claims (12, 13)
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14. A method of producing an IC tag comprising the following steps of:
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clamping a semiconductor element in a thickness direction thereof between a pair of flat clamping jigs;
forming a plane coil by winding a conductor wire coated with an insulator several times within a gap defined between said pair of clamping jigs around an outer circumference of said semiconductor element while it is being clamped by said jigs so that adjacent loops of wire are in contact with each other; and
electrically connecting said semiconductor element to said plane coil. - View Dependent Claims (15)
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16. A method of producing an IC tag comprising the following steps of:
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clamping a semiconductor element and a protective frame in a thickness direction thereof between a pair of flat clamping jigs in such a manner that said semiconductor element is encircled by said protective frame;
forming a plane coil by winding a conductor wire coated with an insulator several times within a gap defined between said pair of clamping jigs around an outer circumference of said protective frame while said frame is being clamped by said jigs so that adjacent loops of wire are in contact with each other; and
electrically connecting said semiconductor element to said plane coil. - View Dependent Claims (17)
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Specification