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Total Source Parasitic Capacitance Calculator

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✖Capacitance between Junction of Body and Source is defined as the capacitance between the junction of the body and the source junction of MOSFET.ⓘ Capacitance between Junction of Body and Source [C_jbs]			+10% -10%
✖Area of Source Diffusion is defined as net movement of anything from a region of higher concentration to a region of lower concentration area in the source gate.ⓘ Area of Source Diffusion [A_s]			+10% -10%
✖Capacitance between Junction of Body and Side wall is a parasitic capacitance that can affect circuit performance.ⓘ Capacitance between Junction of Body and Side wall [C_bsw]			+10% -10%
✖Sidewall Perimeter of Source Diffusion is defined as perimeter of source diffusion not including edge under gate.ⓘ Sidewall Perimeter of Source Diffusion [P_s]			+10% -10%

✖Source Parasitic Capacitance is an unavoidable and usually unwanted capacitance.ⓘ Total Source Parasitic Capacitance [C_sop]

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Total Source Parasitic Capacitance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Source Parasitic Capacitance = (Capacitance between Junction of Body and Source*Area of Source Diffusion)+(Capacitance between Junction of Body and Side wall*Sidewall Perimeter of Source Diffusion)
C_sop = (C_jbs*A_s)+(C_bsw*P_s)
This formula uses 5 Variables

Variables Used

Source Parasitic Capacitance - (Measured in Farad per Square Meter) - Source Parasitic Capacitance is an unavoidable and usually unwanted capacitance.
Capacitance between Junction of Body and Source - (Measured in Farad per Square Meter) - Capacitance between Junction of Body and Source is defined as the capacitance between the junction of the body and the source junction of MOSFET.
Area of Source Diffusion - (Measured in Square Meter) - Area of Source Diffusion is defined as net movement of anything from a region of higher concentration to a region of lower concentration area in the source gate.
Capacitance between Junction of Body and Side wall - (Measured in Farad per Meter) - Capacitance between Junction of Body and Side wall is a parasitic capacitance that can affect circuit performance.
Sidewall Perimeter of Source Diffusion - (Measured in Meter) - Sidewall Perimeter of Source Diffusion is defined as perimeter of source diffusion not including edge under gate.

STEP 1: Convert Input(s) to Base Unit

Capacitance between Junction of Body and Source: 76.46 Microfarad per Square Millimeter --> 76.46 Farad per Square Meter (Check conversion here)
Area of Source Diffusion: 5479 Square Millimeter --> 0.005479 Square Meter (Check conversion here)
Capacitance between Junction of Body and Side wall: 0.1391 Microfarad per Millimeter --> 0.0001391 Farad per Meter (Check conversion here)
Sidewall Perimeter of Source Diffusion: 301.64 Millimeter --> 0.30164 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

C_sop = (C_jbs*A_s)+(C_bsw*P_s) --> (76.46*0.005479)+(0.0001391*0.30164)

Evaluating ... ...

C_sop = 0.418966298124

STEP 3: Convert Result to Output's Unit

0.418966298124 Farad per Square Meter -->0.418966298124 Microfarad per Square Millimeter (Check conversion here)

FINAL ANSWER

0.418966298124 ≈ 0.418966 Microfarad per Square Millimeter <-- Source Parasitic Capacitance

(Calculation completed in 00.004 seconds)

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< VLSI Material Optimization Calculators

Body Effect Coefficient

LaTeX Go Body Effect Coefficient = modulus((Threshold Voltage-Threshold Voltage DIBL)/(sqrt(Surface Potential+(Source Body Potential Difference))-sqrt(Surface Potential)))

DIBL Coefficient

LaTeX Go DIBL Coefficient = (Threshold Voltage DIBL-Threshold Voltage)/Drain to Source Potential

Channel Charge

LaTeX Go Channel Charge = Gate Capacitance*(Gate to Channel Voltage-Threshold Voltage)

Critical Voltage

LaTeX Go Critical Voltage = Critical Electric Field*Electric Field Across Channel Length

Total Source Parasitic Capacitance Formula

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What is MOS diffusion capacitance model?

The p–n junction between the source diffusion and the body contributes parasitic capacitance across the depletion region. The capacitance depends on both the area AS and sidewall perimeter PS of the source diffusion region. The geometry is illustrated in Figure 2.12. The area is AS = WD. The perimeter is PS = 2W + 2D. Of this perimeter, W abuts the channel and the remaining W + 2D does not.

How to Calculate Total Source Parasitic Capacitance?

Total Source Parasitic Capacitance calculator uses Source Parasitic Capacitance = (Capacitance between Junction of Body and Source*Area of Source Diffusion)+(Capacitance between Junction of Body and Side wall*Sidewall Perimeter of Source Diffusion) to calculate the Source Parasitic Capacitance, The Total Source Parasitic Capacitance formula is defined as an unavoidable and usually unwanted capacitance that exists between the parts of an electronic component or circuit simply because of their proximity to each other. Source Parasitic Capacitance is denoted by C_sop symbol.

How to calculate Total Source Parasitic Capacitance using this online calculator? To use this online calculator for Total Source Parasitic Capacitance, enter Capacitance between Junction of Body and Source (C_jbs), Area of Source Diffusion (A_s), Capacitance between Junction of Body and Side wall (C_bsw) & Sidewall Perimeter of Source Diffusion (P_s) and hit the calculate button. Here is how the Total Source Parasitic Capacitance calculation can be explained with given input values -> 0.418966 = (76.46*0.005479)+(0.0001391*0.30164).

FAQ

What is Total Source Parasitic Capacitance?

The Total Source Parasitic Capacitance formula is defined as an unavoidable and usually unwanted capacitance that exists between the parts of an electronic component or circuit simply because of their proximity to each other and is represented as C_sop = (C_jbs*A_s)+(C_bsw*P_s) or Source Parasitic Capacitance = (Capacitance between Junction of Body and Source*Area of Source Diffusion)+(Capacitance between Junction of Body and Side wall*Sidewall Perimeter of Source Diffusion). Capacitance between Junction of Body and Source is defined as the capacitance between the junction of the body and the source junction of MOSFET, Area of Source Diffusion is defined as net movement of anything from a region of higher concentration to a region of lower concentration area in the source gate, Capacitance between Junction of Body and Side wall is a parasitic capacitance that can affect circuit performance & Sidewall Perimeter of Source Diffusion is defined as perimeter of source diffusion not including edge under gate.

How to calculate Total Source Parasitic Capacitance?

The Total Source Parasitic Capacitance formula is defined as an unavoidable and usually unwanted capacitance that exists between the parts of an electronic component or circuit simply because of their proximity to each other is calculated using Source Parasitic Capacitance = (Capacitance between Junction of Body and Source*Area of Source Diffusion)+(Capacitance between Junction of Body and Side wall*Sidewall Perimeter of Source Diffusion). To calculate Total Source Parasitic Capacitance, you need Capacitance between Junction of Body and Source (C_jbs), Area of Source Diffusion (A_s), Capacitance between Junction of Body and Side wall (C_bsw) & Sidewall Perimeter of Source Diffusion (P_s). With our tool, you need to enter the respective value for Capacitance between Junction of Body and Source, Area of Source Diffusion, Capacitance between Junction of Body and Side wall & Sidewall Perimeter of Source Diffusion 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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