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PN Junction Length Formula

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PN Junction Length is defined as the total length of the junction from p-side to n-side in a semiconductor. Check FAQs
Lpn=Ld+Leff
Lpn - PN Junction Length?Ld - Depletion Region Width?Leff - Effective Channel Length?

PN Junction Length Example

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With units
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Here is how the PN Junction Length equation looks like with Values.

Here is how the PN Junction Length equation looks like with Units.

Here is how the PN Junction Length equation looks like.

19.01Edit=11.01Edit+8Edit
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HomeIcon Home » Category Engineering » Category Electronics » Category CMOS Design and Applications » fx PN Junction Length

PN Junction Length Solution

Follow our step by step solution on how to calculate PN Junction Length?

FIRST Step Consider the formula
Lpn=Ld+Leff
Next Step Substitute values of Variables
∴ Lpn=11.01mm+8mm
Next Step Convert Units
∴ Lpn=0.011m+0.008m
Next Step Prepare to Evaluate
∴ Lpn=0.011+0.008
Next Step Evaluate
∴Lpn=0.01901m
LAST Step Convert to Output's Unit
∴Lpn=19.01mm

PN Junction Length Formula Elements

Variables
PN Junction Length
PN Junction Length is defined as the total length of the junction from p-side to n-side in a semiconductor.
Symbol: Lpn
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Formulas to find PN Junction LengthOpen Variable
Depletion Region Width
Depletion Region Width in a typical Si diode ranges from a fraction of a micrometer to tens of micrometers depending on device geometry, doping profile, and external bias.
Symbol: Ld
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Formulas to find Depletion Region WidthOpen Variable
Effective Channel Length
Effective Channel Length is defined as the path that links the charge carriers between the drain and the source.
Symbol: Leff
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Formulas to find Effective Channel LengthOpen Variable

Other formulas in CMOS Circuit Characteristics category

​Go CMOS Critical Voltage
Vc=Ec⋅L
​Go CMOS Mean Free Path
L=VcEc
​Go Width of Source Diffusion
W=AsDs
​Go Area of Source Diffusion
As=Ds⋅W

How to Evaluate PN Junction Length?

PN Junction Length evaluator uses PN Junction Length = Depletion Region Width+Effective Channel Length to evaluate the PN Junction Length, PN Junction Length is defined as the total length of the junction from p-side to n-side in a semiconductor. PN Junction Length is denoted by Lpn symbol.

How to evaluate PN Junction Length using this online evaluator? To use this online evaluator for PN Junction Length, enter Depletion Region Width (Ld) & Effective Channel Length (Leff) and hit the calculate button.

FAQs on PN Junction Length

What is the formula to find PN Junction Length?
The formula of PN Junction Length is expressed as PN Junction Length = Depletion Region Width+Effective Channel Length. Here is an example- 1.6E+7 = 1.101E-05+8E-06.
How to calculate PN Junction Length?
With Depletion Region Width (Ld) & Effective Channel Length (Leff) we can find PN Junction Length using the formula - PN Junction Length = Depletion Region Width+Effective Channel Length.
Can the PN Junction Length be negative?
No, the PN Junction Length, measured in Length cannot be negative.
Which unit is used to measure PN Junction Length?
PN Junction Length is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which PN Junction Length can be measured.
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