Spiral transient voltage suppressor or Zener structure
AssigneeMicross Corpus Christi Corporation
InventorDavid Francis Courtney
Life of this patent
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Abstract
A transient voltage suppressor is disclosed that includes an electrode, a substrate disposed on the electrode, the substrate having a first doping, an epitaxial layer disposed on the substrate, the epitaxial layer having a second doping that is different from the first doping, a channel formed in the epitaxial layer having a width W, a length L and a plurality of curved regions, the channel forming a plurality of adjacent sections, the channel having a third doping that is different from the first doping and the second doping and a metal layer formed on top of the channel and contained within the width W of the channel.
Claims18
A transient voltage suppressor, comprising:
- an electrode;
- a substrate disposed on the electrode, the substrate having a first doping;
- an epitaxial layer disposed on the substrate, the epitaxial layer having a second doping that is different from the first doping;
- a continuous parallel channel formed in the epitaxial layer having a width W, a length L, a plurality of parallel regions, and a plurality of curved regions, the parallel channel having a plurality of adjacent sections to form a closed spiral loop, the parallel channel having a third doping that is different from the first doping and the second doping;
- and
- a metal layer formed on top of the parallel channel and contained within the width W of the parallel channel.
A transient voltage suppressor, comprising:
- an electrode;
- a substrate disposed on the electrode, the substrate having a first doping;
- an epitaxial layer disposed on the substrate, the epitaxial layer having a second doping that is different from the first doping;
- a parallel channel formed in the epitaxial layer having a width W, a length L, a plurality of parallel regions, and a plurality of curved regions, the parallel channel having a plurality of continuous adjacent sections to form a closed spiral loop, the parallel channel having a third doping that is different from the first doping and the second doping.
A transient voltage suppressor, comprising:
- an electrode;
- a substrate disposed on the electrode, the substrate having a first doping;
- an epitaxial layer disposed on the substrate, the epitaxial layer having a second doping that is different from the first doping;
- a parallel channel formed in the epitaxial layer having a width W, a length L, a plurality of parallel regions, and a plurality of curved regions, the parallel channel having a first section and turning 180 degrees to form a second section that is adjacent to the first section to form a closed spiral loop, the parallel channel having a third doping that is different from the first doping and the second doping.
Dependencies are inferred from the claim text.