Patent ID: 10396193

Abstract:
An III-nitride HEMT, including a substrate; a semiconductor epitaxial stack, formed on the substrate, including a buffer structure, a channel layer formed on the buffer structure and a barrier layer formed on the channel layer, wherein a two-dimensional electron gas is formed between the channel layer and the barrier layer; and a first electrode, a third electrode and a second electrode located in between, respectively formed on the barrier layer, wherein the semiconductor epitaxial stack includes a sheet resistance greater than 500 Ω/sq, wherein there is a first minimum space between the first electrode and the second electrode, a second minimum space between the second electrode and the third electrode, and the ratio of the first minimum space to the sum of first minimum space and the second minimum space is between 0.77 and 1, wherein the second electrode includes a length greater than or equal to 9 μm.