Menu. The line dividing the two regions, where N D - N A = 0, is the metallurgical junction. Note:- I have written an interesting article which tells the story behind invention & discovery of PN Junction diode. Reverse bias: A voltage V A < 0 is applied to the diode terminals. Operating junction temperature(T J):-the highest tolerable temperature for the diode’s PN junction, usually given in degrees Celsius (o C) if junction temperature reaches more than the highest limit of diode then thermal break down happens. A. Depletion region - definition Depletion region is a region near the boundary of a p-n junction region. D. Path Potential Barrier in a Diode Definition: The potential barrier in the PN-junction diode is the barrier in which the charge requires additional force for crossing the region. B. In a PN junction with no external voltage, the electric field between acceptor and donor ions is called a. Dictionary ... An electronic device with two electrodes, as either an electron tube with an anode and a cathode or a transistor with a pn junction, used mainly as a rectifier since it conducts current in only one direction. When one side of an intrinsic semiconductor is doped with acceptor i.e, one side is made p-type by doping with n-type material, a p-n junction diode is formed. A junction diode is a semiconductor crystal, usually made of silicon, with two electrical terminals attached.A P-N junction diode is the most common type of semiconductor diode. Barrier. Dictionary ! In ideal conditions, this PN junction behaves as a short circuit when it is forward biased, and as … p-n junction synonyms, p-n junction pronunciation, p-n junction translation, English dictionary definition of p-n junction. A p-n junction diode allows electric current when it is forward biased and blocks electric current when it is reverse biased. Due to this characteristic, the diode finds number of applications as given below: Rectification; The conversion of alternating current into direct current is known as rectification. Define p-n junction. Diode symbols and various regions in an unbiased p-n junction is shown in the attached figure. In other words, the barrier in which the charge carrier stopped by the obstructive force is known as the potential barrier. A PN junction is the simplest form of the semiconductor diode. The junction diode characteristics typically allow it to conduct current easily in one direction but not the other. A PN junction with two metallic contacts is known as a pn junction diode or a semiconductor diode. P-N Junction: P-N junction diode is the most fundamental and the simplest electronics device. C. Threshold. PN Junction Diode Multiple Choice Questions Answers; 1. Region: A specified district or territory. 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