Vertical electrical device
First Claim
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1. A vertical electrical device, comprising:
- a region in a substrate extending from a surface of the substrate, the region having an inner wall and an outer wall circumscribing the inner wall;
an inner electrically conductive layer disposed on said inner wall;
an outer electrically conductive layer disposed on said outer wall;
an electrically insulative material disposed between said inner and outer electrically conductive layers; and
an electrical conductor in said substrate and bounded by said inner electrically conductive layer;
wherein the electrical conductor and the outer electrically conductive layer extend beyond the substrate at the first surface wherein a portion of said electrically insulative region covers said inner metal electrically conductive layer at said second surface.
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Abstract
A vertical electrical device includes a region in a substrate extending from a surface of the substrate, the region having an inner wall and an outer wall circumscribing the inner wall. An inner electrically conductive layer is disposed on the inner wall and an outer electrically conductive layer is disposed on the outer wall, with an electrically insulative material disposed between the inner and outer layers. An electrical conductor in the substrate is bounded by the inner electrically conductive layer.
32 Citations
18 Claims
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1. A vertical electrical device, comprising:
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a region in a substrate extending from a surface of the substrate, the region having an inner wall and an outer wall circumscribing the inner wall; an inner electrically conductive layer disposed on said inner wall; an outer electrically conductive layer disposed on said outer wall; an electrically insulative material disposed between said inner and outer electrically conductive layers; and an electrical conductor in said substrate and bounded by said inner electrically conductive layer; wherein the electrical conductor and the outer electrically conductive layer extend beyond the substrate at the first surface wherein a portion of said electrically insulative region covers said inner metal electrically conductive layer at said second surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A vertical high frequency shielded electrical conductor, comprising:
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a cylindrical region in a semiconductive substrate extending from a first surface of the substrate, the region having an inner wall, an outer wall circumscribing the inner wall, and a bottom surface between the outer and inner walls; an inner metal electrically conductive layer disposed on said inner wall; an outer metal electrically conductive layer disposed on said outer wall; an electrically insulative region disposed between said inner and outer electrically conductive layers and substantially filling the region; an electrical conductor in said substrate, bounded by said inner electrically conductive layer, and extending through a second surface of said substrate, the electrical conductor thereby forming an electrical interconnect via through said substrate, a portion of said electrically insulative region covering said inner metal electrically conductive layer at said second surface, said insulative region and said outer conductive layer providing high frequency isolation for the electrical interconnect; wherein said outer conductive layer comprises a first electrode, said electrical conductor comprises a second electrode, and said electrically insulative material is a dielectric material, the device configured thereby as a coaxial capacitor. - View Dependent Claims (18)
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Specification