Surface mountable electrical device comprising a voltage variable material
First Claim
1. An electrical circuit protection device comprising:
- a first electrode formed from a conductive material and having a cavity formed therein;
a voltage variable material disposed within said cavity of said first conductive electrode; and
a second electrode formed from a conductive material and electrically connected to said voltage variable material, wherein the first and second electrodes are formed on respective support substrates.
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Accused Products
Abstract
The surface mountable electrical device provides utilizes polymer composite materials to protect electronic components against electrical overstress transients. The device includes a first substrate having an electrode formed thereon. A portion of the electrode forms an electrical connector which projects outwardly from the substrate. A second substrate has a electrode formed on a surface thereof. A portion of the electrode on the second substrate forms a well or cavity. A voltage variable material is disposed within the cavity formed in the electrode on the second substrate. The two substrates are laminated together such that the electrical connector extends into the voltage variable material disposed within the cavity. Outer terminations adapted to be connected to an electrical circuit are formed on the outer surfaces of the substrates and are electrically connected to each respective electrode.
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Citations
21 Claims
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1. An electrical circuit protection device comprising:
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a first electrode formed from a conductive material and having a cavity formed therein; a voltage variable material disposed within said cavity of said first conductive electrode; and a second electrode formed from a conductive material and electrically connected to said voltage variable material, wherein the first and second electrodes are formed on respective support substrates. - View Dependent Claims (2, 3, 4, 5)
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6. An electrical circuit protection device comprising:
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a first substrate having a first electrode formed on a first surface thereof, the first electrode having a cavity formed therein; a voltage variable material disposed within the cavity; a second substrate having a second electrode formed on a first surface thereof, the second electrode making electrical contact with the voltage variable material; a first outer termination electrically connected to the first electrode; and a second outer termination electrically connected to the second electrode. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A surface mountable electrical circuit protection device comprising:
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a first electrically insulating substrate having a first and a second surface; a first electrode formed on the first surface of the first substrate, the first electrode having a cavity formed therein; a voltage variable material disposed within the cavity; a second electrically insulating substrate having a first and a second surface; a second electrode formed on the first surface of the second substrate, the second electrode having an electrical connector which projects outwardly from the first surface of the second substrate and is in direct contact with the voltage variable material; an insulating layer disposed between the first and second substrates and separating the first electrode from the second electrode, the first and second electrodes being electrically connected by the voltage variable material; a first outer termination formed on the second surface of the first substrate and on the second surface of the second substrate, the first end termination electrically connected to the first electrode; and a second outer termination formed on the second surface of the first substrate and on the second surface of the second substrate, the second end termination electrically connected to the second electrode.
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15. An electrical circuit protection device comprising:
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an electrically insulating substrate having first and second surfaces and first and second ends; a conductive layer formed on the first surface of the substrate, the conductive layer having a gap formed therein to form first and second electrodes; an insulating layer disposed on the conductive layer, the insulating layer having a cavity formed therein adjacent the gap in the conductive layer; and a voltage variable material disposed in the cavity and the gap, the voltage variable material electrically connecting the first and the second electrodes. - View Dependent Claims (16, 17, 18, 19)
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20. An electrical circuit protection device comprising:
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a first electrode disposed on a first support substrate and a second electrode disposed on a second support substrate; an insulative layer interposed between the first and second electrodes, the insulative layer having a cavity formed therein; and a voltage variable material disposed in the cavity and electrically connecting the first electrode to the second electrode. - View Dependent Claims (21)
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Specification