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Oxide Capacitance of Scaled MOSFET Calculator

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✖Oxide Capacitance is defined as amount of electrical coupling exists between gate electrode and p-type silicon region, i.e, the oxide layer.ⓘ Oxide Capacitance [Cox]
+10%
-10%
✖Scaling Factor of MOSFET is the factor by which the size of MOSFET decreases or increase.ⓘ Scaling Factor of MOSFET [s]
+10%
-10%
✖Scaled MOSFET Capacitance of Oxide is the new capacitance that is formed due to scaling the thickness of oxide.ⓘ Oxide Capacitance of Scaled MOSFET [Cox']
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Oxide Capacitance of Scaled MOSFET

Formula
`("C"_{"ox"}"'") = "C"_{"ox"}/"s"`

Example
`"49pF"="98pF"/"2"`

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Oxide Capacitance of Scaled MOSFET Solution

STEP 0: Pre-Calculation Summary
Formula Used
Scaled MOSFET Capacitance of Oxide = Oxide Capacitance/Scaling Factor of MOSFET
Cox' = Cox/s
This formula uses 3 Variables
Variables Used
Scaled MOSFET Capacitance of Oxide - (Measured in Farad) - Scaled MOSFET Capacitance of Oxide is the new capacitance that is formed due to scaling the thickness of oxide.
Oxide Capacitance - (Measured in Farad) - Oxide Capacitance is defined as amount of electrical coupling exists between gate electrode and p-type silicon region, i.e, the oxide layer.
Scaling Factor of MOSFET - Scaling Factor of MOSFET is the factor by which the size of MOSFET decreases or increase.
STEP 1: Convert Input(s) to Base Unit
Oxide Capacitance: 98 Picofarad --> 9.8E-11 Farad (Check conversion here)
Scaling Factor of MOSFET: 2 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Cox' = Cox/s --> 9.8E-11/2
Evaluating ... ...
Cox' = 4.9E-11
STEP 3: Convert Result to Output's Unit
4.9E-11 Farad -->49 Picofarad (Check conversion here)
FINAL ANSWER
49 Picofarad <-- Scaled MOSFET Capacitance of Oxide
(Calculation completed in 00.003 seconds)
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Created by Venkatesh Pasumarti
Indian Institute of Information Technology, Design and Manufacturing, Kancheepuram (IIITD&M Kancheepuram), Chennai
Venkatesh Pasumarti has created this Calculator and 2 more calculators!
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BMS College Of Engineering (BMSCE), Banglore
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13 Fundamental Parameters Calculators

Built-in Potential
Go Built-in Potential = Thermal Voltage*ln((Acceptor Concentration*Donor Concentration)/(Intrinsic Electron Concentration^2))
Power Supply Rejection Ratio
Go Power Supply Rejection Ratio = 20*log10(Input Voltage Ripple/Output Voltage Ripple)
Switching Power in CMOS
Go Switching Power = (Positive Voltage^2)*Frequency*Capacitance
Scaled Drain Current of MOSFET
Go Drain Current of Scaled MOSFET = Drain Current of MOSFET/Scaling Factor of MOSFET
Oxide Capacitance of Scaled MOSFET
Go Scaled MOSFET Capacitance of Oxide = Oxide Capacitance/Scaling Factor of MOSFET
Capacitance Onpath
Go Capacitance Onpath = Total Capacitance Seen by a Stage-Capacitance Offpath
Total Capacitance Seen by Stage
Go Total Capacitance Seen by a Stage = Capacitance Onpath+Capacitance Offpath
Capacitance Offpath
Go Capacitance Offpath = Total Capacitance Seen by a Stage-Capacitance Onpath
Input Capacitance of Gate
Go Input Capacitance = Drive of Arbitrary Gate*Logical Effort
Output Clock Phase
Go Output Clock Phase = 2*3.14*VCO Control Voltage*VCO Gain
Capacitance of External Load
Go Capacitance of External Load = Fanout*Input Capacitance
Static Current
Go Static Current = Static Power/Drain Voltage
Static Power Dissipation
Go Static Power = Static Current*Drain Voltage

Oxide Capacitance of Scaled MOSFET Formula

Scaled MOSFET Capacitance of Oxide = Oxide Capacitance/Scaling Factor of MOSFET
Cox' = Cox/s

What is role of capacitance of oxide layer in MOSFET?

The gate oxide is the dielectric layer that separates the gate terminal of a MOSFET (metal-oxide-semiconductor field-effect transistor) from the underlying source and drain terminals as well as the conductive channel that connects source and drain when the transistor is turned on.

How to Calculate Oxide Capacitance of Scaled MOSFET?

Oxide Capacitance of Scaled MOSFET calculator uses Scaled MOSFET Capacitance of Oxide = Oxide Capacitance/Scaling Factor of MOSFET to calculate the Scaled MOSFET Capacitance of Oxide, The Oxide Capacitance of scaled MOSFET formula is defined as new oxide capacitance of MOSFET which is caused due to scaling in thickness caused. Scaled MOSFET Capacitance of Oxide is denoted by Cox' symbol.

How to calculate Oxide Capacitance of Scaled MOSFET using this online calculator? To use this online calculator for Oxide Capacitance of Scaled MOSFET, enter Oxide Capacitance (Cox) & Scaling Factor of MOSFET (s) and hit the calculate button. Here is how the Oxide Capacitance of Scaled MOSFET calculation can be explained with given input values -> 4.9E-11 = 9.8E-11/2.

FAQ

What is Oxide Capacitance of Scaled MOSFET?
The Oxide Capacitance of scaled MOSFET formula is defined as new oxide capacitance of MOSFET which is caused due to scaling in thickness caused and is represented as Cox' = Cox/s or Scaled MOSFET Capacitance of Oxide = Oxide Capacitance/Scaling Factor of MOSFET. Oxide Capacitance is defined as amount of electrical coupling exists between gate electrode and p-type silicon region, i.e, the oxide layer & Scaling Factor of MOSFET is the factor by which the size of MOSFET decreases or increase.
How to calculate Oxide Capacitance of Scaled MOSFET?
The Oxide Capacitance of scaled MOSFET formula is defined as new oxide capacitance of MOSFET which is caused due to scaling in thickness caused is calculated using Scaled MOSFET Capacitance of Oxide = Oxide Capacitance/Scaling Factor of MOSFET. To calculate Oxide Capacitance of Scaled MOSFET, you need Oxide Capacitance (Cox) & Scaling Factor of MOSFET (s). With our tool, you need to enter the respective value for Oxide Capacitance & Scaling Factor of MOSFET and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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