Patent ID: 9306014
Filing Date: 2016-04-05
CPC Classification: H01L

Claim Text:
1. A high-electron-mobility transistor (HEMT) comprising: a first semiconductor material and a second semiconductor material disposed to form a heterojunction at which a two-dimensional electron gas arises; a source electrode, a drain electrode, and a gate electrode, the gate electrode disposed to regulate conduction in the heterojunction between the source electrode and the drain electrode, the gate having a drain-side edge; a gate-connected field plate disposed above a drain-side edge of the gate electrode and extending laterally toward the drain; and a second field plate disposed above a drain-side edge of the gate-connected field plate and extending laterally toward the drain, wherein, in the OFF state and at a potential difference between the source and the drain in excess of the absolute value of a gate swing amplitude, charge carriers are depleted from a portion of the heterojunction in a vicinity of the drain-side edge of the gate-connected field plate, the depletion of charge carriers effective to saturate a lateral electric field in the heterojunction in a vicinity of the drain-side edge of the gate electrode.