METHOD FOR BONDING A WIRE CONDUCTOR LAID ON A SUBSTRATE
First Claim
1. A method for bonding a wire conductor arranged on a preferably card-like substrate during the manufacture of a transponder unit having a wire coil and a chip module, comprising a first phase, wherein the coil is permanently joined with the substrate, and a second phase, wherein the wire conductor and the chip module are bonded, wherein in the first phase at least one of the end portions of the wire conductor intended for later bonding with the chip module is attached to the substrate with a free loop being formed, and that the loop thus formed is gripped in a second phase and a section of the loop is then bonded with a bonding area of the chip module and attached to it in an electrically conductive manner.
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Accused Products
Abstract
Method for bonding a wire conductor arranged on a preferably card-like substrate during the manufacture of a transponder unit having a wire coil and a chip module, comprising a first phase, wherein the coil is permanently joined with the substrate, and a second phase, wherein the wire conductor and the chip module are bonded, whereas in the first phase at least one of the end portions of the wire conductor intended for later bonding with the chip module is attached to the substrate with a free loop being formed, and that the loop thus formed is gripped in a second phase and a section of the loop is then bonded with a bonding area of the chip module and attached to it in an electronically conductive manner.
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Citations
15 Claims
- 1. A method for bonding a wire conductor arranged on a preferably card-like substrate during the manufacture of a transponder unit having a wire coil and a chip module, comprising a first phase, wherein the coil is permanently joined with the substrate, and a second phase, wherein the wire conductor and the chip module are bonded, wherein in the first phase at least one of the end portions of the wire conductor intended for later bonding with the chip module is attached to the substrate with a free loop being formed, and that the loop thus formed is gripped in a second phase and a section of the loop is then bonded with a bonding area of the chip module and attached to it in an electrically conductive manner.
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6. Method according to claim 6, wherein the clamping force of at least one of the two grippers with which it grips the wire conductor is at least temporarily limited, namely in such a way that the wire conductor is be pulled through said gripper in a gliding manner as soon as the wire conductor is subjected to tensile stress;
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7. Method according to claim 7, wherein the gripper whose clamping force is limited is the gripper closest to the free end of the wire conductor.
- 11. Method according to claim 11, wherein the gripper is a suction gripper adapted to suck the wire conductor of the loop into a centring device, which forces the wire conductor into a defined position, the location of which relative to the allocated terminal area of the chip module is known.
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13. Method according to claim 13, wherein the pressure organ is coupled to an ultrasonic source for the purpose of ultrasonic friction welding.
Specification