TY - JOUR
T1 - 0.1-μm p+-GaAs gate HJFETs with fT= 121 GHz fabricated using all dry-etching and selective MOMBE growth
AU - Wada, Shigeki
AU - Furuhata, Naoki
AU - Tokushima, Masatoshi
AU - Fukaishi, Muneo
AU - Hida, Hikaru
AU - Maeda, Tadashi
PY - 1995/12/1
Y1 - 1995/12/1
N2 - This paper reports the first successful fabrication of a high-performance, 0.1-μm, T-shaped, p+-gate pseudomorphic heterojunction-FET (HJFET) using all dry-etching and selective MOMBE growth techniques. We have developed a two-step dry-etching technique that compensates for the poor dry-etching resistance of PMMA, and a voidless gate-electrode filling technique for high aspect-ratio openings with selective MOMBE p+-GaAs growth. Our efforts results in a reduction of external gate fringing capacitance and a improvement in gate turn-on voltage. The fabricated 0.1-μm, p+-gate n-Al0.2Ga0.8As/In0.25Ga0.75As HJFET exhibits excellent microwave performance, fT= 121 GHz and fmax= 144 GHz.
AB - This paper reports the first successful fabrication of a high-performance, 0.1-μm, T-shaped, p+-gate pseudomorphic heterojunction-FET (HJFET) using all dry-etching and selective MOMBE growth techniques. We have developed a two-step dry-etching technique that compensates for the poor dry-etching resistance of PMMA, and a voidless gate-electrode filling technique for high aspect-ratio openings with selective MOMBE p+-GaAs growth. Our efforts results in a reduction of external gate fringing capacitance and a improvement in gate turn-on voltage. The fabricated 0.1-μm, p+-gate n-Al0.2Ga0.8As/In0.25Ga0.75As HJFET exhibits excellent microwave performance, fT= 121 GHz and fmax= 144 GHz.
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M3 - Conference article
AN - SCOPUS:0029516204
SN - 0163-1918
SP - 197
EP - 200
JO - Technical Digest - International Electron Devices Meeting
JF - Technical Digest - International Electron Devices Meeting
T2 - Proceedings of the 1995 International Electron Devices Meeting, IEDM'95
Y2 - 10 December 1995 through 13 December 1995
ER -