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US 6,581,276 B2Granted
Fine-pitch flexible connector, and method for making same
AssigneeAmerasia International Technology, Inc.
InventorKevin Kwong-Tai Chung
Life of this patent
Estimating the term…
Abstract
A fine-pitch flexible electrical connector includes a plurality of generally parallel metal conductors in a matrix of a molecularly flexible dielectric adhesive, and may be made in various sizes and thicknesses so as to be utilized as a connector, jumper, test membrane, interposer or other electrical connection structure providing connection between two or more electronic devices and/or substrates. The connector is made by providing a number of metal conductors disposed in relation to the dielectric adhesive, such as by lamination or aggregation, and then separating individual connectors therefrom by cutting, slicing and/or otherwise separating transversely to the longitudinal direction of the conductors.
Claims62
A method for making an electrical connection structure comprising:
- providing a plurality of elongated metal conductors of an electrically-conductive metal;
- placing the plurality of elongated metal conductors in generally parallel spaced-apart spatial relationship;
- filling the spaces between the spaced apart elongated metal conductors with a molecularly flexible dielectric adhesive;
- drying or B-staging the molecularly flexible dielectric adhesive;
- whereby the plurality of elongated metal conductors are embedded in the dried or B-staged molecularly flexible dielectric adhesive;
- and
- cutting the dried or B-staged molecularly flexible dielectric adhesive and the elongated metal conductors embedded therein in a direction transverse to the elongated direction of the elongated metal conductors.
4 more elements
A method for making an electrical connection structure comprising:
- providing a plurality of sheets of an electrically-conductive metal;
- providing a plurality of layers of molecularly flexible dielectric adhesive;
- drying or B-staging the molecularly flexible dielectric adhesive;
- interleaving alternating layers of the sheets of electrically-conductive metal and of the layers of molecularly flexible dielectric adhesive,
- laminating the interleaved alternating layers of the sheets of electrically-conductive metal and the layers of molecularly flexible dielectric adhesive together,
- whereby the plurality of sheets of electrically-conductive metal are embedded in the dried or B-staged molecularly flexible dielectric adhesive;
- cutting from the laminated interleaved alternating layers of the sheets of electrically-conductive metal and of the molecularly flexible dielectric adhesive at least two thin slices in a direction transverse to the sheets of electrically-conductive metal;
- stacking the at least two thin slices with the cut sheets of electrically-conductive metal disposed in generally parallel relationship and with an elongated direction of the cut sheets of electrically-conductive metal generally aligned;
- and
- cutting the dried or B-staged molecularly flexible dielectric adhesive and the cut sheets of electrically-conductive metal embedded therein in a direction transverse to the elongated direction of the cut sheets of an electrically-conductive metal.
7 more elements
A method for making an electrical connection structure comprising:
- providing a plurality of sheets of electrically conductive metal;
- providing a layer of molecularly flexible dielectric adhesive on the sheets of electrically conductive metal;
- drying or B-staging the molecularly flexible dielectric adhesive;
- patterning the sheet of electrically conductive metal to form a plurality of generally parallel elongated metal conductors;
- stacking and laminating the plurality of layers of molecularly flexible dielectric adhesive having patterned elongated metal conductors thereon together;
- whereby the plurality of elongated metal conductors are embedded in the dried or B-staged molecularly flexible dielectric adhesive;
- and
- cutting the dried or B-staged molecularly flexible dielectric adhesive and the elongated metal conductors embedded therein in a direction transverse to the elongated direction of the elongated metal conductors.
5 more elements
A method for making an electrical connection structure comprising:
- providing a plurality of electrically conductive elongated metal wires having a length substantially greater than a diameter thereof;
- coating the elongated thin metal wires with a molecularly flexible dielectric adhesive;
- drying or B-staging the molecularly flexible dielectric adhesive;
- bundling the coated elongated metal wires in generally parallel spatial relationship under suitable heat and pressure;
- whereby the plurality of elongated metal wires are embedded in the dried or B-staged molecularly flexible dielectric adhesive;
- and
- cutting the dried or B-staged molecularly flexible dielectric adhesive and the elongated metal wires embedded therein in a direction transverse to the elongated direction of the elongated metal wires.
4 more elements
A method for making an electrical connection structure comprising:
- providing a sheet of electrically-conductive metal;
- wire-bonding a plurality of electrically-conductive wires on one surface of the sheet of electrically-conductive metal in generally parallel spaced apart spatial relationship;
- filling the spaces between the spaced apart electrically-conductive wires with a molecularly flexible dielectric adhesive;
- drying or B-staging the molecularly flexible dielectric adhesive;
- removing at least that part of the sheet of electrically-conductive metal to which the electrically-conductive wires are not wire-bonded;
- whereby the plurality of electrically-conductive wires are embedded in the dried or B-staged molecularly flexible dielectric adhesive;
- and
- cutting the dried or B-staged molecularly flexible dielectric adhesive and the electrically-conductive wires embedded therein in a direction transverse to the elongated direction of the electrically-conductive wires.
5 more elements
Dependencies are inferred from the claim text.