HIGH CURRENT DENSITY POWER FIELD EFFECT TRANSISTOR
First Claim
Patent Images
1. A hybrid power field effect transistor device, comprising:
- a JFET component;
a first accumulation MOSFET disposed adjacent to the JFET component;
a second accumulation MOSFET disposed adjacent to the JFET component at the trench bottom end; and
wherein the JFET component, the first accumulation MOSFET and the second accumulation MOSFET are configured to induce current flow through bulk silicon regions of the device.
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Abstract
An ultra-short channel hybrid power field effect transistor (FET) device lets current flow from bulk silicon without npn parasitic. This device does not have body but still have body diode with low forward voltage at high current rating. The device includes a JFET component, a first accumulation MOSFET disposed adjacent to the JFET component, and a second accumulation MOSFET disposed adjacent to the JFET component at the bottom of the trench end, or a MOSFET with an isolated gate connecting the source.
14 Citations
19 Claims
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1. A hybrid power field effect transistor device, comprising:
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a JFET component; a first accumulation MOSFET disposed adjacent to the JFET component; a second accumulation MOSFET disposed adjacent to the JFET component at the trench bottom end; and
wherein the JFET component, the first accumulation MOSFET and the second accumulation MOSFET are configured to induce current flow through bulk silicon regions of the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power MOSFET device, comprising:
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a JFET component; a first accumulation MOSFET disposed adjacent to the JFET component; a second accumulation MOSFET disposed adjacent to the JFET component on the side opposite the first accumulation MOSFET; wherein the JFET component, the first accumulation MOSFET and the second accumulation MOSFET are configured to induce current flow through bulk silicon regions of the device; and wherein the JFET component, the first accumulation MOSFET and the second accumulation MOSFET are fabricated as a trench based a vertical structure. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A power FET device, comprising:
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a JFET component; a first accumulation MOSFET disposed adjacent to the JFET component; a second accumulation MOSFET disposed adjacent to the JFET component on the side opposite the first accumulation MOSFET; a first Schottkey region disposed on the side of the JFET component; a second Schottkey region disposed on the side of the JFET component opposite the first Schottkey region; wherein the JFET component, the first accumulation MOSFET and the second accumulation MOSFET are configured to induce current flow through bulk silicon regions of the device. - View Dependent Claims (17, 18, 19)
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Specification