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Oxide Layer Thickness Formula

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The Oxide layer thickness tox is determined during the process technology which is used to fabricate the MOSFET. Check FAQs

t ox = ε ox \cdot W g \cdot \frac{L g}{C in}

t_ox - Oxide Layer Thickness?ε_ox - Permittivity of Oxide Layer?W_g - Gate Width?L_g - Length of Gate?C_in - Input Gate Capacitance?

Oxide Layer Thickness Example

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With units

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Here is how the Oxide Layer Thickness equation looks like with Values.

Here is how the Oxide Layer Thickness equation looks like with Units.

Here is how the Oxide Layer Thickness equation looks like.

4.9797 = 149.79 \cdot 0.285 \cdot \frac{7}{60.01}

4.9797mm = 149.79μF/mm \cdot 0.285mm \cdot \frac{7mm}{60.01μF}

4.9797 = 149.79 \cdot 0.285 \cdot \frac{7}{60.01}

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Oxide Layer Thickness Solution

Follow our step by step solution on how to calculate Oxide Layer Thickness?

FIRST Step Consider the formula

t ox = ε ox \cdot W g \cdot \frac{L g}{C in}

Next Step Substitute values of Variables

∴

t ox = 149.79μF/mm \cdot 0.285mm \cdot \frac{7mm}{60.01μF}

Next Step Convert Units

∴

t ox = 0.1498F/m \cdot 0.0003m \cdot \frac{0.007m}{6E-5F}

Next Step Prepare to Evaluate

∴

t ox = 0.1498 \cdot 0.0003 \cdot \frac{0.007}{6E-5}

Next Step Evaluate

∴

t ox = 0.00497968755207465m

Next Step Convert to Output's Unit

∴

t ox = 4.97968755207465mm

LAST Step Rounding Answer

∴

t ox = 4.9797mm

Oxide Layer Thickness Formula Elements

Variables

Oxide Layer Thickness

The Oxide layer thickness tox is determined during the process technology which is used to fabricate the MOSFET.

Symbol: t_ox

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Oxide Layer Thickness

Permittivity of Oxide Layer

Permittivity of Oxide Layer is defined as the ability of a substance to store electrical energy in an electric field.

Symbol: ε_ox

Measurement: PermittivityUnit: μF/mm

Note: Value should be greater than 0.

Formulas to find Permittivity of Oxide Layer

Gate Width

Gate Width refers to the distance between the edge of a metal gate electrode and the adjacent semiconductor material in a CMOS.

Symbol: W_g

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Gate Width

Length of Gate

Length of Gate is the measurement or extent of something from end to end.

Symbol: L_g

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Length of Gate

Input Gate Capacitance

Input Gate Capacitance in CMOS refers to the capacitance between the input terminals of a CMOS circuit and the reference potential (usually ground).

Symbol: C_in

Measurement: CapacitanceUnit: μF

Note: Value should be greater than 0.

Formulas to find Input Gate Capacitance

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 Oxide Layer Thickness?

Oxide Layer Thickness evaluator uses Oxide Layer Thickness = Permittivity of Oxide Layer*Gate Width*Length of Gate/Input Gate Capacitance to evaluate the Oxide Layer Thickness, The Oxide Layer Thickness formula is defined as is the thickness of silicon oxide film that provides the same electrical performance. Oxide Layer Thickness is denoted by t_ox symbol.

How to evaluate Oxide Layer Thickness using this online evaluator? To use this online evaluator for Oxide Layer Thickness, enter Permittivity of Oxide Layer (ε_ox), Gate Width (W_g), Length of Gate (L_g) & Input Gate Capacitance (C_in) and hit the calculate button.

FAQs on Oxide Layer Thickness

What is the formula to find Oxide Layer Thickness?

The formula of Oxide Layer Thickness is expressed as Oxide Layer Thickness = Permittivity of Oxide Layer*Gate Width*Length of Gate/Input Gate Capacitance. Here is an example- 4.986669 = 0.14979*0.000285*0.007/6.001E-05.

How to calculate Oxide Layer Thickness?

With Permittivity of Oxide Layer (ε_ox), Gate Width (W_g), Length of Gate (L_g) & Input Gate Capacitance (C_in) we can find Oxide Layer Thickness using the formula - Oxide Layer Thickness = Permittivity of Oxide Layer*Gate Width*Length of Gate/Input Gate Capacitance.

Can the Oxide Layer Thickness be negative?

No, the Oxide Layer Thickness, measured in Length cannot be negative.

Which unit is used to measure Oxide Layer Thickness?

Oxide Layer Thickness is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Oxide Layer Thickness can be measured.

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Oxide Layer Thickness Formula

Oxide Layer Thickness Example

Oxide Layer Thickness Solution

Oxide Layer Thickness Formula Elements

Other formulas in CMOS Circuit Characteristics category

How to Evaluate Oxide Layer Thickness?

FAQs on Oxide Layer Thickness

Variable Name