Patent ID: 8860120
Filing Date: 2014-10-14
Classification: H01L

Abstract:
1. A circuit comprising: a gate electrode over a channel region and between source and drain electrodes, the gate electrode being configured and arranged with the channel region to apply an electric field to the channel region and control conductivity of the channel region between the source and drain electrodes; at least one semiconductor layer arranged including ohmic regions, having ohmic material, disposed under the source and drain electrodes in the at least one semiconductor layer; a field electrode between the gate electrode and the drain electrode and separated from the channel region by a distance greater than a separation between the gate electrode and the channel region; and a control circuit connected to the field electrode and the source electrode, the control circuit being configured and arranged with the field electrode and the channel region to bias the field electrode negatively relative to the source electrode and to shape an electric field in a portion of the channel region laterally between the gate electrode and the drain electrode.