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0. 1 µm-Gate InGaP/InGaAs HEMT Technology for Millimeter-Wave Applications
Naoki HARADA Tamio SAITO Hideyuki OIKAWA Yoji OHASHI Yuji AWANO Masayuki ABE Kohki HIKOSAKA
Publication
IEICE TRANSACTIONS on Electronics
Vol.E81-C
No.6
pp.876-881 Publication Date: 1998/06/25 Online ISSN:
DOI: Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Module Technology) Category: Semiconductor Devices and Amplifiers Keyword: mm-wave, MMIC, HEMT, InGaP, low noise amplifier,
Full Text: PDF>>
Summary:
This paper describes our new technology for creating a highly productive 0. 1 µm gate InGaP/InGaAs HEMT with a GaAs substrate for a millimeter-wave MMIC. We applied a phase-shifting photo lithographic technique and sidewall deposition/etching process to fabricate a 0. 1 µm gate electrode. The fabricated HEMTs showed excellent high-frequency performance; An MSG exceeding 10 dB at 60 GHz. We also fabricated a 60 GHz band, four-stage low-noise amplifier MMIC and demonstrated its superior performance (Gain= 27 dB and NF= 3. 1 dB @61 GHz). These results strongly suggest that our InGaP/InGaAs HEMTs technologies are highly applicable for millimeter-wave applications.
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