HIGH-SPEED STATIC FREQUENCY DIVIDER EMPLOYING N** plus -GE GATE ALGAAS/GAAS MISFETS.

Takashi Mizutani, Makoto Hirano, Shuichi Fujita, Koichi Maezawa

    研究成果: Conference article査読

    7 被引用数 (Scopus)

    抄録

    The high-speed potential of n** plus -Ge gate AlGaAs/GaAs MISFETs has been demonstrated by fabricating a divide-by-four static frequency divider. The transconductance of a MISFET with 0. 6- mu m gate length was 470 mS/mm. The small V//t//h standard deviation of 13 mV throughout the 2-in wafer confirms the principal advantage of the MISFET, namely high V//t//h uniformity. The frequency-divider circuit was based on source-coupled FET logic with 0. 9- mu m gate-length MISFET. A maximum toggle frequency as high as 16 GHz with a power dissipation of 36 mW per T-flip-flop has been achieved at room temperature. In addition, a cutoff frequency as high as 54 GHz has been achieved in a 0. 5 mu m gate length MISFET, which leads to an electron velocity in the channel as high as 1. 7 multiplied by 10**7 cm/s.

    本文言語English
    ページ(範囲)603-606
    ページ数4
    ジャーナルTechnical Digest - International Electron Devices Meeting
    出版ステータスPublished - 1987 12 1

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • 凝縮系物理学
    • 電子工学および電気工学
    • 材料化学

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