Presentation Information

[24p-52A-3]Double doped GaInSb HEMT with fT and fmax of over 300 GHz

〇Rikuto Yoshida1, Ryosuke Kouno1, Reo Ebihara1, Tomoki Jinnai1, Issei Watanabe2,1, Yoshimi Yamashita2, Ryuto Machida2, Shinsuke Hara2, Akifumi Kasamatsu2, Akira Endoh1, Hiroki Fujishiro1 (1.Tokyo Univ. of Science, 2.National Institute of Info. & Com. Tech.)

Keywords:

HEMT

In order to further increase the speed of GaInSb channel high electron mobility transistor (HEMT), we have attempted to introduce a double-doped structure into the barrier layer thinned epitaxial structure. By introducing a double-doped structure with Te δ-doped on the top and bottom of the channel layer, the increase of parasitic resistance in barrier-layer thinned GaInSb HEMTs was improved, and fT=340 GHz and fmax=372 GHz were achieved by reducing the intrinsic delay time.