Calculation Of The Collector Signal Delay Time Of Hbts Based On A Piecewise-Linear Velocity Profile

    Authors

    J. J. Liou;A. Zajac

    Comments

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    Abbreviated Journal Title

    Solid-State Electron.

    Keywords

    Overshoot; Engineering, Electrical & Electronic; Physics, Applied; Physics, ; Condensed Matter

    Abstract

    We present a systematic method for calculating the frequency-dependent collector signal delay time tau(CT)' and the cutoff frequency f(T) of the heterojunction bipolar transistor (HBT). The method is developed based on the assumption that f(T) is limited by tau(CT)'. Furthermore, a piecewise-liner drift velocity profile is employed to account for velocity overshoot in the base-collector junction. Previous works employing the low-frequency approximation or the step-wise drift velocity profile, which assumes a constant velocity in the overshoot region, are also briefly reviewed and discussed.

    Journal Title

    Solid-State Electronics

    Volume

    36

    Issue/Number

    5

    Publication Date

    1-1-1993

    Document Type

    Article

    Language

    English

    First Page

    693

    Last Page

    696

    WOS Identifier

    WOS:A1993KV34000003

    ISSN

    0038-1101

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