MESFET pinch off voltage calculator | MESFET pinch off voltage formula
This page covers MESFET Pinch off voltage Calculator. It mentions Pinch off voltage formula used for the MESFET calculator.
EXAMPLE pinch off voltage calculator:
INPUTS: Nd = 8E17 cm-3, a = 0.1 µm, Er = 13.10
OUTPUTS: Vp = 5.517 volts
MESFET Pinch off voltage formula or equation
Following MESFET pinch off voltage formula is used in this calculator.
Where,
Vp = Pinch off voltage
q = charge in coulombs, 1.6 x 10-19
Nd = Electron Concentration in electrons per cm-3
a = channel height in meters
εs = εr x ε0
Here ε0 is permittivity of free space with value of 8.854 x 10-12 F/m,
εs is permittivity of material in Farads/meter and
εr is relative dielectric constant.
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