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Current Density Hole Formula

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Hole Current Density contributes to the total current in a semiconductor device, and it's an essential parameter in understanding the behavior of semiconductor. Check FAQs

J p = q \cdot D p \cdot (\frac{p n}{W b})

J_p - Hole Current Density?q - Charge?D_p - Diffusion Constant For PNP?p_n - Hole Equilibrium Concentration?W_b - Base Width?

Current Density Hole Example

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Here is how the Current Density Hole equation looks like with Values.

Here is how the Current Density Hole equation looks like with Units.

Here is how the Current Density Hole equation looks like.

4.375 = 5 \cdot 100 \cdot (\frac{70}{8})

4.375A/cm² = 5mC \cdot 100cm²/s \cdot (\frac{701/cm³}{8cm})

4.375 = 5 \cdot 100 \cdot (\frac{70}{8})

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Current Density Hole Solution

Follow our step by step solution on how to calculate Current Density Hole?

FIRST Step Consider the formula

J p = q \cdot D p \cdot (\frac{p n}{W b})

Next Step Substitute values of Variables

∴

J p = 5mC \cdot 100cm²/s \cdot (\frac{701/cm³}{8cm})

Next Step Convert Units

∴

J p = 0.005C \cdot 0.01m²/s \cdot (\frac{7E+71/m³}{0.08m})

Next Step Prepare to Evaluate

∴

J p = 0.005 \cdot 0.01 \cdot (\frac{7E+7}{0.08})

Next Step Evaluate

∴

J p = 43750A/m²

LAST Step Convert to Output's Unit

∴

J p = 4.375A/cm²

Current Density Hole Formula Elements

Variables

Hole Current Density

Hole Current Density contributes to the total current in a semiconductor device, and it's an essential parameter in understanding the behavior of semiconductor.

Symbol: J_p

Measurement: Surface Current DensityUnit: A/cm²

Note: Value should be greater than 0.

Formulas to find Hole Current Density

Charge

Charge a characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons.

Symbol: q

Measurement: Electric ChargeUnit: mC

Note: Value should be greater than 0.

Formulas to find Charge

Diffusion Constant For PNP

Diffusion Constant For PNP describes how easily these minority carriers diffuse through the semiconductor material when an electric field is applied.

Symbol: D_p

Measurement: DiffusivityUnit: cm²/s

Note: Value should be greater than 0.

Formulas to find Diffusion Constant For PNP

Hole Equilibrium Concentration

Hole Equilibrium Concentration is a characteristic property of the material and is determined by intrinsic factors like the bandgap energy and temperature.

Symbol: p_n

Measurement: Carrier ConcentrationUnit: 1/cm³

Note: Value should be greater than 0.

Formulas to find Hole Equilibrium Concentration

Base Width

The base width is an important parameter affecting the transistor's characteristics, especially in terms of its operation and speed.

Symbol: W_b

Measurement: LengthUnit: cm

Note: Value can be positive or negative.

Formulas to find Base Width

Other formulas in Bipolar IC Fabrication category

Go Impurity with Intrinsic Concentration

n i = \sqrt{\frac{n e \cdot p}{t o}}

Go Ohmic Conductivity of Impurity

σ = q \cdot (μ n \cdot n e + μ p \cdot p)

Go Breakout Voltage of Collector Emitter

V ce = \frac{V cb}{{(i g)}^{\frac{1}{n}}}

Go Conductivity of N-Type

σ = q \cdot (μ n \cdot N d + μ p \cdot (\frac{{n i}^{2}}{N d}))

How to Evaluate Current Density Hole?

Current Density Hole evaluator uses Hole Current Density = Charge*Diffusion Constant For PNP*(Hole Equilibrium Concentration/Base Width) to evaluate the Hole Current Density, The Current Density Hole formula is a measure of the flow of "holes" in a semiconductor material. Holes are the positively charged quasiparticles that act as charge carriers in a semiconductor, effectively representing the absence of an electron in a filled state. Hole Current Density is denoted by J_p symbol.

How to evaluate Current Density Hole using this online evaluator? To use this online evaluator for Current Density Hole, enter Charge (q), Diffusion Constant For PNP (D_p), Hole Equilibrium Concentration (p_n) & Base Width (W_b) and hit the calculate button.

FAQs on Current Density Hole

What is the formula to find Current Density Hole?

The formula of Current Density Hole is expressed as Hole Current Density = Charge*Diffusion Constant For PNP*(Hole Equilibrium Concentration/Base Width). Here is an example- 0.000438 = 0.005*0.01*(70000000/0.08).

How to calculate Current Density Hole?

With Charge (q), Diffusion Constant For PNP (D_p), Hole Equilibrium Concentration (p_n) & Base Width (W_b) we can find Current Density Hole using the formula - Hole Current Density = Charge*Diffusion Constant For PNP*(Hole Equilibrium Concentration/Base Width).

Can the Current Density Hole be negative?

No, the Current Density Hole, measured in Surface Current Density cannot be negative.

Which unit is used to measure Current Density Hole?

Current Density Hole is usually measured using the Ampere per Square Centimeter[A/cm²] for Surface Current Density. Ampere per Square Meter[A/cm²], Ampere per Square Inch[A/cm²], Ampere per Circular Mil[A/cm²] are the few other units in which Current Density Hole can be measured.

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Current Density Hole Formula

Current Density Hole Example

Current Density Hole Solution

Current Density Hole Formula Elements

Other formulas in Bipolar IC Fabrication category

How to Evaluate Current Density Hole?

FAQs on Current Density Hole

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