Threshold Voltage阈值电压
Threshold voltage is the gate-to-source voltage at which a MOS transistor forms a conductive channel and begins to conduct appreciable current between source and drain. It appears in transistor datasheets, SPICE model cards, process design kits, and circuit simulation reports for digital and analog blocks, where it shapes logic levels, drive current, and timing margins in both front-end and back-end design stages.
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Where this term appears
Threshold voltage occurs in device datasheets, compact model documentation, and PDK reference manuals. It also appears in parametric test programs where threshold voltage is measured across process corners and temperature. Translators must keep the term consistent between design and test contexts, and preserve units, bias conditions, and sign conventions for NMOS and PMOS devices.
Translation checks
A frequent error is translating threshold voltage as '门槛电压' without noting that the standard semiconductor term is '阈值电压.' It can also be confused with breakdown voltage or diode turn-on voltage. In datasheets and test specifications, this changes the meaning of operating limits and may lead designers to misread device turn-on conditions or reliability margins.
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