Electrical overstress pulse protection
OwnerAntai Xuinventor
Life of this patent
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Abstract
An electrical overstress responsive composite is formed on an electrically insulative substrate, has a pair of electrodes associated with the substrate and defining a gap between the electrodes and over the interposed portion of the substrate, a pattern of closely spaced electrically conductive elements span said gap and are affixed to said substrate, and a dielectric resin overlies said conductive elements and also spans said gap. The dielectric resin may include conductive and/or semiconductive fine particles. The composite presents a high resistance to a low voltage applied across said electrodes and a low resistance to a high voltage applied across said electrodes.
Claims20
An overstress responsive composite comprising an electrically insulative substrate, a pair of contraposed electrodes defining a gap therebetween over a portion of the surface of said substrate, a pattern of closely spaced electrically conductive elements affixed to said substrate and spanning said gap, and a continuous dielectric overlay also spanning said gap, said composite presenting a high resistance to a low voltage applied across said gap and a low resistance to a high voltage applied across said gap.
An overstress responsive composite comprising an electrically insulative substrate, a plurality of electrically conductive pin contact pads affixed to said substrate and each having a hole therethrough coincident with a respective hole in said substrate, said holes being located in a pattern to receive the pins of a connector, each of said pad having an electrode portion, an electrically conductive ground electrode positioned in contraposed relation to each pad electrode portion and affixed to said substrate, each contraposed pair of electrodes defining therebetween a gap extending over a portion of the surface of said substrate, each gap having a pattern of closely spaced electrically conductive elements affixed to said substrate and spanning the gap, and a continuous dielectric overlay also spanning each gap, each of said gaps presenting a high resistance to a low voltage applied across it and a low resistance to a high voltage applied across it.
Dependencies are inferred from the claim text.