Very low-noise Al0.3Ga0.7As/In0.35Ga0.65As/GaAs single quantum-well pseudomorphic HEMTs

P. C. Chao; Pin Ho; K. H.G. Duh; P. M. Smith; J. M. Ballingall; Amani A. Jabra; N. Lewis; E. L. Hall

doi:10.1117/12.20923

1 August 1990 Very low-noise Al0.3Ga0.7As/In0.35Ga0.65As/GaAs single quantum-well pseudomorphic HEMTs

P. C. Chao, Pin Ho, K. H.G. Duh, P. M. Smith, J. M. Ballingall, Amani A. Jabra, N. Lewis, E. L. Hall

Proceedings Volume 1288, High-Speed Electronics and Device Scaling; (1990) https://doi.org/10.1117/12.20923
Event: Advances in Semiconductors and Superconductors: Physics Toward Devices Applications, 1990, San Diego, CA, United States

Abstract

AlGaAs/InGaAs/GaAs pseudomorphic HEMTs with an InAs mole fraction as high as 35% in the channel has been successfully fabricated. The device exhibits a maximum extrinsic transconductance of 700mS/mm. At 18GHz, a minimum noise figure of 0.55dB with 15.0dB associated gain was measured. At 94GHz, a minimum noise figure as low as 2.4dB with 5.4dB associated gain was also obtained. This is the best noise performance ever reported for GaAs-based HEMTs.

Citation Download Citation

P. C. Chao, Pin Ho, K. H.G. Duh, P. M. Smith, J. M. Ballingall, Amani A. Jabra, N. Lewis, and E. L. Hall "Very low-noise Al0.3Ga0.7As/In0.35Ga0.65As/GaAs single quantum-well pseudomorphic HEMTs", Proc. SPIE 1288, High-Speed Electronics and Device Scaling, (1 August 1990); https://doi.org/10.1117/12.20923

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