Junction diode summary, Other Engineering

The PN junction region of the Junction Diode has the following significant characteristics:

  • Semiconductors contain two types of mobile charge carriers, Electrons and Holes.
  • The electrons negatively charged while holes are positively charged.
  • A semiconductor can be doped with donor impurities like Antimony (N-type doping), so that it contains mobile charges which are the primarily electrons.
  • A semiconductor can be doped with the acceptor impurities such as Boron (P-type doping), so that it contains mobile charges which are majorly holes.
  • The junction region itself has no charge carriers and is called as the depletion region.
  • The junction region has physical thickness which varies with the applied voltage.
  • When the diode is Zero Biased no external energy source is applied and a natural Potential Barrier is developed across the depletion layer which is about 0.5 to 0.7v for silicon diodes and about 0.3 of a volt for germanium diodes.
  • When the junction diode is Forward Biased thickness of the depletion region reduces and the diode acts as a short circuit allowing full current to flow.
  • When the junction diode is Reverse Biased thickness of the depletion region increases and the diode behaves like an open circuit blocking any current flow, (only a small leakage current). 
Posted Date: 9/3/2012 9:19:00 AM | Location : United States

Related Discussions:- Junction diode summary, Assignment Help, Ask Question on Junction diode summary, Get Answer, Expert's Help, Junction diode summary Discussions

Write discussion on Junction diode summary
Your posts are moderated
Related Questions
SUPERSONIC INTAKES At supersonic speeds, the pitot type of air intake is unsuitable due to the severity of shock waves which form and progressively reduce the intake efficiency

"Whether you are writing, listening, speaking, or attending meetings, communication skills are critical to your success in University and the workplace". Discuss. Since entering

Explain how a Q-meter can be used to measure resistance inductance and capacitance??

What Is EBIDTA?  EBITDA appears for income before attention, taxation, devaluation, and amount. EBITDA came into large use among personal investment companies, seeking to determ

#question.do you write financial econometrics assignment?.

Q. What is a normal spectrum? Show that grating spectrum is a normal spectrum. Ans. Normal spectrum and the dispersive power of grating is defined as the rate of change of a

What is the specific heat of water at different pressure and different temperature? Is it possible to boil the water below atmospheric pressure and use as a hot bathing water?

Trade-offs in Communications Designs Satellite and Deep Space Communications               - Power is expensive to generate in space and transmission distances are eno

Engineering Signals A signal is a variation of a measurable quantity that conveys information about the behaviour of a system. • A signal can depend upon a single variable o

Which type of financing is appropriate to each firm caselet