Electrical connection device comprising connection elements with controllable position
First Claim
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1. An electrical connection device comprising:
- at least one substrate; and
one or several first electrical connection elements located on a front face of the electrical connection device to be coupled to contact pads of an electronic device to which the electrical connection device is to be connected, each first electrical connection element includingat least one support, of which at least one first end is anchored to the substrate such that part of the support is suspended above the front face forming a space between at least part of the first electrical connection element and at least part of the front face, the support comprising at least a portion of piezoelectric material located between two electrodes such that said part of the support is movable in two directions approximately perpendicular to the front face depending on a value of an electrical voltage that is to be applied onto the electrodes; and
at least one electrical conducting element located on said part of the support.
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Abstract
Electrical connection device comprising at least one substrate and one or several first electrical connection elements located on a front face of the electrical connection device such that they can be coupled to contact pads of an electronic device to which the electrical connection device is intended to be connected, each first electrical connection element comprising:
- at least one support, of which at least one first end is anchored to the substrate such that part of the support is suspended above the front face, the support comprising at least a portion of piezoelectric material located between two electrodes and capable of moving said part of the support in two directions approximately perpendicular to the front face depending on a value of an electrical voltage intended to be applied onto the electrodes;
- at least one electrical conducting element located on said part of the support.
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Citations
15 Claims
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1. An electrical connection device comprising:
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at least one substrate; and one or several first electrical connection elements located on a front face of the electrical connection device to be coupled to contact pads of an electronic device to which the electrical connection device is to be connected, each first electrical connection element including at least one support, of which at least one first end is anchored to the substrate such that part of the support is suspended above the front face forming a space between at least part of the first electrical connection element and at least part of the front face, the support comprising at least a portion of piezoelectric material located between two electrodes such that said part of the support is movable in two directions approximately perpendicular to the front face depending on a value of an electrical voltage that is to be applied onto the electrodes; and at least one electrical conducting element located on said part of the support. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for making an electrical connection device, including producing one or several first electrical connection elements from a substrate on a front face of the electrical connection device to be coupled to contact pads of an electronic device to which the electrical connection device is to be connected, the method comprising:
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producing at least one portion of sacrificial material on the front face; producing at least one support, of which at least one first end is anchored to the substrate such that part of the support is located on the portion of sacrificial material, the support comprising at least one portion of piezoelectric material located between two electrodes; producing at least one electrical connection element on said part of the support; and eliminating the portion of sacrificial material, releasing said part of the support such that the portion of piezoelectric material is configured to move said part of the support in two-directions, approximately perpendicular to the front face depending on a value of an electrical voltage intended to be applied onto the electrodes, the part of the support being suspended above the front face forming a space between at least part of the first electrical connection element and at least part of the front face. - View Dependent Claims (15)
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Specification