GATE Exam > GATE Questions > Calculate the width of the space charge regio...
Start Learning for Free
Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V?
Most Upvoted Answer
Calculate the width of the space charge region in a pn junction when a...
Calculation of width of space charge region in pn junction with RB'd voltage
Given:
Calculation:
Given:
- Temperature T = 300K
- Doping concentration Na = 10^16 cm^-3
- Doping concentration Nd = 10^15 cm^-3
- Intrinsic carrier concentration ni = 1.5 × 10^10 cm^-3
- RB'd voltage Vr = 5V
Calculation:
- Calculate the built-in potential V0
- V0 = (kT/q) * ln(Na*Nd/ni^2)
- q = 1.6 × 10^-19 C (charge of an electron)
- k = 1.38 × 10^-23 J/K (Boltzmann's constant)
- T = 300K (temperature)
- ni = 1.5 × 10^10 cm^-3 (intrinsic carrier concentration)
- Na = 10^16 cm^-3 (acceptor doping concentration)
- Nd = 10^15 cm^-3 (donor doping concentration)
- V0 = (1.38 × 10^-23 * 300 / 1.6 × 10^-19) * ln(10^16 * 10^15 / (1.5 × 10^10)^2)
- V0 = 0.692 V
- Calculate the depletion width W0 without any external bias
- W0 = sqrt((2 * εs * V0) / (q * (1 / Na + 1 / Nd)))
- εs = 11.8 * ε0 (permittivity of silicon)
- ε0 = 8.85 × 10^-14 F/cm (permittivity of free space)
- W0 = sqrt((2 * 11.8 * 8.85 × 10^-14 * 0.692) / (1.6 × 10^-19 * (1 / 10^16 + 1 / 10^15)))
- W0 = 0.238 μm
- Calculate the width of the space charge region W under RB'd voltage
- W = sqrt((2 * εs * (V0 - Vr)) / (q * (1 / Na + 1 / Nd)))
- W = sqrt((2 * 11.8 * 8.85 × 10^-14 * (0.692 - 5)) / (1.6 × 10^-19 * (1 / 10^16 + 1 / 10^15)))
- W = 0.241 μm
|
Explore Courses for GATE exam
|
|
Similar GATE Doubts
Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V?
Question Description
Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V?.
Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V?.
Solutions for Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V? in English & in Hindi are available as part of our courses for GATE.
Download more important topics, notes, lectures and mock test series for GATE Exam by signing up for free.
Here you can find the meaning of Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V? defined & explained in the simplest way possible. Besides giving the explanation of
Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V?, a detailed solution for Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V? has been provided alongside types of Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V? theory, EduRev gives you an
ample number of questions to practice Calculate the width of the space charge region in a pn junction when an RB'd voltage is applied.Consider So pn junction at T=300k with doping concentration of Na=10^16cm^-3 ,Nd=10^15cm^-3,ni=1.5×10^10cm^-3,Vr=5V? tests, examples and also practice GATE tests.
|
|
Explore Courses for GATE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup