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Total Capacitance between Gate and Channel of MOSFETs Formula

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Gate Channel Capacitance refers to the electrical capacitance that exists between the gate electrode and the channel region of a metal-oxide-semiconductor field-effect transistor (MOSFET). Check FAQs

C g = C ox \cdot W c \cdot L

C_g - Gate Channel Capacitance?C_ox - Oxide Capacitance?W_c - Channel Width?L - Channel Length?

Total Capacitance between Gate and Channel of MOSFETs Example

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Here is how the Total Capacitance between Gate and Channel of MOSFETs equation looks like with Values.

Here is how the Total Capacitance between Gate and Channel of MOSFETs equation looks like with Units.

Here is how the Total Capacitance between Gate and Channel of MOSFETs equation looks like.

9.4E-7 = 940 \cdot 10 \cdot 100

9.4E-7μF = 940μF \cdot 10μm \cdot 100μm

9.4E-7 = 940 \cdot 10 \cdot 100

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Total Capacitance between Gate and Channel of MOSFETs Solution

Follow our step by step solution on how to calculate Total Capacitance between Gate and Channel of MOSFETs?

FIRST Step Consider the formula

C g = C ox \cdot W c \cdot L

Next Step Substitute values of Variables

∴

C g = 940μF \cdot 10μm \cdot 100μm

Next Step Convert Units

∴

C g = 0.0009F \cdot 1E-5m \cdot 0.0001m

Next Step Prepare to Evaluate

∴

C g = 0.0009 \cdot 1E-5 \cdot 0.0001

Next Step Evaluate

∴

C g = 9.4E-13F

Next Step Convert to Output's Unit

∴

C g = 9.4E-07μF

LAST Step Rounding Answer

∴

C g = 9.4E-7μF

Total Capacitance between Gate and Channel of MOSFETs Formula Elements

Variables

Gate Channel Capacitance

Gate Channel Capacitance refers to the electrical capacitance that exists between the gate electrode and the channel region of a metal-oxide-semiconductor field-effect transistor (MOSFET).

Symbol: C_g

Measurement: CapacitanceUnit: μF

Note: Value can be positive or negative.

Formulas to find Gate Channel Capacitance

Oxide Capacitance

Oxide capacitance is an important parameter that affects the performance of MOS devices, such as the speed and power consumption of integrated circuits.

Symbol: C_ox

Measurement: CapacitanceUnit: μF

Note: Value should be greater than 0.

Formulas to find Oxide Capacitance

Channel Width

Channel width refers to the range of frequencies used for transmitting data over a wireless communication channel. It is also known as bandwidth and is measured in hertz (Hz).

Symbol: W_c

Measurement: LengthUnit: μm

Note: Value should be greater than 0.

Formulas to find Channel Width

Channel Length

Channel length refers to the distance between the source and drain terminals in a field-effect transistor (FET).

Symbol: L

Measurement: LengthUnit: μm

Note: Value should be greater than 0.

Formulas to find Channel Length

Other formulas in Internal Capacitive Effects and High Frequency Model category

Go Gate to Source Channel Width of MOSFET

W c = \frac{C oc}{C ox \cdot L ov}

Go Overlap Capacitance of MOSFET

C oc = W c \cdot C ox \cdot L ov

Go Transition Frequency of MOSFET

f t = \frac{g m}{2 \cdot π \cdot (C sg + C gd)}

Go Conductance of Channel of MOSFETs

G = μ s \cdot C ox \cdot (\frac{W c}{L}) \cdot V ox

How to Evaluate Total Capacitance between Gate and Channel of MOSFETs?

Total Capacitance between Gate and Channel of MOSFETs evaluator uses Gate Channel Capacitance = Oxide Capacitance*Channel Width*Channel Length to evaluate the Gate Channel Capacitance, The Total capacitance between gate and channel of MOSFETs is the multiplication of oxide capacitance, length of the channel, and width of the channel and the oxide capacitance in the saturation region of MOSFET. Gate Channel Capacitance is denoted by C_g symbol.

How to evaluate Total Capacitance between Gate and Channel of MOSFETs using this online evaluator? To use this online evaluator for Total Capacitance between Gate and Channel of MOSFETs, enter Oxide Capacitance (C_ox), Channel Width (W_c) & Channel Length (L) and hit the calculate button.

FAQs on Total Capacitance between Gate and Channel of MOSFETs

What is the formula to find Total Capacitance between Gate and Channel of MOSFETs?

The formula of Total Capacitance between Gate and Channel of MOSFETs is expressed as Gate Channel Capacitance = Oxide Capacitance*Channel Width*Channel Length. Here is an example- 0.94 = 0.00094*1E-05*0.0001.

How to calculate Total Capacitance between Gate and Channel of MOSFETs?

With Oxide Capacitance (C_ox), Channel Width (W_c) & Channel Length (L) we can find Total Capacitance between Gate and Channel of MOSFETs using the formula - Gate Channel Capacitance = Oxide Capacitance*Channel Width*Channel Length.

Can the Total Capacitance between Gate and Channel of MOSFETs be negative?

Yes, the Total Capacitance between Gate and Channel of MOSFETs, measured in Capacitance can be negative.

Which unit is used to measure Total Capacitance between Gate and Channel of MOSFETs?

Total Capacitance between Gate and Channel of MOSFETs is usually measured using the Microfarad[μF] for Capacitance. Farad[μF], Kilofarad[μF], Millifarad[μF] are the few other units in which Total Capacitance between Gate and Channel of MOSFETs can be measured.

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Total Capacitance between Gate and Channel of MOSFETs Formula

Total Capacitance between Gate and Channel of MOSFETs Example

Total Capacitance between Gate and Channel of MOSFETs Solution

Total Capacitance between Gate and Channel of MOSFETs Formula Elements

Other formulas in Internal Capacitive Effects and High Frequency Model category

How to Evaluate Total Capacitance between Gate and Channel of MOSFETs?

FAQs on Total Capacitance between Gate and Channel of MOSFETs

Variable Name