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Critical Electric Field Formula

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Critical Electric Field is defined as the electric force per unit charge. Check FAQs

E c = \frac{2 \cdot V sat}{µ e}

E_c - Critical Electric Field?V_sat - Velocity Saturation?µ_e - Mobility of Electron?

Critical Electric Field Example

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Here is how the Critical Electric Field equation looks like with Values.

Here is how the Critical Electric Field equation looks like with Units.

Here is how the Critical Electric Field equation looks like.

0.0041 = \frac{2 \cdot 10.12}{49.8}

0.0041V/mm = \frac{2 \cdot 10.12mm/s}{49.8cm²/V*s}

0.0041 = \frac{2 \cdot 10.12}{49.8}

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Critical Electric Field Solution

Follow our step by step solution on how to calculate Critical Electric Field?

FIRST Step Consider the formula

E c = \frac{2 \cdot V sat}{µ e}

Next Step Substitute values of Variables

∴

E c = \frac{2 \cdot 10.12mm/s}{49.8cm²/V*s}

Next Step Convert Units

∴

E c = \frac{2 \cdot 0.0101m/s}{0.005m²/V*s}

Next Step Prepare to Evaluate

∴

E c = \frac{2 \cdot 0.0101}{0.005}

Next Step Evaluate

∴

E c = 4.06425702811245V/m

Next Step Convert to Output's Unit

∴

E c = 0.00406425702811245V/mm

LAST Step Rounding Answer

∴

E c = 0.0041V/mm

Critical Electric Field Formula Elements

Variables

Critical Electric Field

Critical Electric Field is defined as the electric force per unit charge.

Symbol: E_c

Measurement: Electric Field StrengthUnit: V/mm

Note: Value should be greater than 0.

Formulas to find Critical Electric Field

Velocity Saturation

velocity Saturation is the phenomenon where carriers approach a maximum velocity vsat when high fields are applied.

Symbol: V_sat

Measurement: SpeedUnit: mm/s

Note: Value should be greater than 0.

Formulas to find Velocity Saturation

Mobility of Electron

Mobility of electron is defined as the magnitude of average drift velocity per unit electric field.

Symbol: µ_e

Measurement: MobilityUnit: cm²/V*s

Note: Value should be greater than 0.

Formulas to find Mobility of Electron

Other formulas in CMOS Circuit Characteristics category

Go CMOS Critical Voltage

V c = E c \cdot L

Go CMOS Mean Free Path

L = \frac{V c}{E c}

Go Width of Source Diffusion

W = \frac{A s}{D s}

Go Area of Source Diffusion

A s = D s \cdot W

How to Evaluate Critical Electric Field?

Critical Electric Field evaluator uses Critical Electric Field = (2*Velocity Saturation)/Mobility of Electron to evaluate the Critical Electric Field, The Critical Electric Field CMOS formula is defined as the electric field at which the velocity of carrier saturates. The loss of energy is because of the collisions of carriers called as scattering effect. Critical Electric Field is denoted by E_c symbol.

How to evaluate Critical Electric Field using this online evaluator? To use this online evaluator for Critical Electric Field, enter Velocity Saturation (V_sat) & Mobility of Electron (µ_e) and hit the calculate button.

FAQs on Critical Electric Field

What is the formula to find Critical Electric Field?

The formula of Critical Electric Field is expressed as Critical Electric Field = (2*Velocity Saturation)/Mobility of Electron. Here is an example- 4.1E-6 = (2*0.01012)/0.00498.

How to calculate Critical Electric Field?

With Velocity Saturation (V_sat) & Mobility of Electron (µ_e) we can find Critical Electric Field using the formula - Critical Electric Field = (2*Velocity Saturation)/Mobility of Electron.

Can the Critical Electric Field be negative?

No, the Critical Electric Field, measured in Electric Field Strength cannot be negative.

Which unit is used to measure Critical Electric Field?

Critical Electric Field is usually measured using the Volt per Millimeter[V/mm] for Electric Field Strength. Volt per Meter[V/mm], Kilovolt per Meter[V/mm], Millivolt per Meter[V/mm] are the few other units in which Critical Electric Field can be measured.

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Critical Electric Field Formula

Critical Electric Field Example

Critical Electric Field Solution

Critical Electric Field Formula Elements

Other formulas in CMOS Circuit Characteristics category

How to Evaluate Critical Electric Field?

FAQs on Critical Electric Field

Variable Name