Patent ID: 9184098
Filing Date: 2015-11-10
Classification: H01L

Abstract:
1. An apparatus comprising: a multi-gate high electron mobility transistor (HEMT) comprising a drain/source, a source/drain, a first enhancement-mode (E-mode) gate, and a second E-mode gate, wherein the first E-mode gate is disposed between the drain/source and the second E-mode gate, wherein the second E-mode gate is disposed between the first E-mode gate and the source/drain, and wherein the drain/source is electrically connected to a first terminal, and wherein the source/drain is electrically connected to a second terminal; a forward conduction control block electrically connected between the first terminal and the second terminal and configured to control a voltage of the gate of the second E-mode gate, wherein the forward conduction control block is configured to turn on the second E-mode gate when a voltage difference between the first and second terminals is greater than a forward conduction trigger voltage and to otherwise bias the second E-mode gate based on a voltage of the second terminal; and a reverse conduction control block electrically connected between the first terminal and the second terminal and configured to control a voltage of the gate of the first E-mode gate, wherein the reverse conduction control block is configured to turn on the first E-mode gate when the voltage difference is less than a reverse conduction trigger voltage and to otherwise bias the first E-mode gate based on a voltage of the first terminal.