Claims
- 1. A power diode comprising:
a) a semiconductor body having two opposing surfaces and a superjunction therebetween, the superjunction structure including a plurality of alternating P and N doped regions aligned generally perpendicular to the two surfaces, b) a diode junction associated with one surface, and c) an ohmic contact on the other surface.
- 2. The power diode as defined by claim 1 wherein the diode junction comprises an anode region and a gate controlled channel region connecting the anode region to the superjunction structure, the superjunction structure being within a cathode region of the diode and spaced from the anode region.
- 3. The power diode as defined by claim 2 wherein the alternating P and N doped regions are parallel stripes.
- 4. The power diode as defined by claim 3 and further including an ohmic contact metal contacting the anode region and the gate.
- 5. The power diode as defined by claim 2 wherein the alternating P and N doped regions are a mesh of P and N regions with each region being surrounded by doped material of opposite conductivity type.
- 6. The power diode as defined by claim 5 and further including an ohmic metal contacting the anode region and the gate.
- 7. The power diode as defined by claim 2 wherein the diode junction comprises a metal on the one surface and forming a Schottky junction therewith.
- 8. The power diode as defined by claim 7 wherein the alternating P and N doped regions are parallel stripes.
- 9. The power diode as defined by claim 7 wherein the alternating P and N doped regions are a mesh of P and N regions with each region being surrounded by doped material of opposite conductivity type.
- 10. The power diode as defined by claim 7 wherein the metal is selected from the group consisting of platinum, titanium, molybdenum, and nickel.
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] This application claims priority from copending application Ser. No. 09/544,730 filed Apr. 6, 2000.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09544730 |
Apr 2000 |
US |
Child |
10238104 |
Sep 2002 |
US |