Patent ID: 9455342
Filing Date: 2016-09-27
CPC Classification: H01L

Claim Text:
1. A semiconductor device, comprising: a substrate; a first active layer disposed over the substrate; a second active layer disposed on the first active layer such that a laterally extending conductive channel arises which extends in a lateral direction, the laterally extending conductive channel being located between the first active layer and the second active layer; first and second electrodes electrically connected to the first active layer; an E-field management layer for reducing electric-field gradients arising in the first and second active layers, the E-field management layer being disposed over the second active layer, the E-field management layer having a resistivity greater than 1 kΩ×cm; an injection electrode electrically connected to the E-field management layer; wherein the first and second electrodes are source and drain electrodes, respectively, and further comprising a gate electrode disposed completely in a recess extending into the E-field management layer above an upper surface of the second active layer between the source electrode and the drain electrode, wherein the injection electrode is disposed between the gate electrode and the drain electrode extending laterally towards the drain electrode without any electrical connection with either the source electrode, the drain electrode or the gate electrode.