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Encyclopedia > Reverse leakage current

Reverse leakage current in the semiconductor is the current flowing from the semiconductor when we reverse bias that device. A p-n junction is formed by combining N-type and P-type semiconductors together in very close contact. ...


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U.S. Patent: 5017976 - Semiconductor device having intermediate layer for pinching off conductive path during reverse ... (5338 words)
A reverse bias V.sub.R applied to the N.sup.- -type layers 38 and 42, and the N-type layer is 0 V, or 40 V whereas a reverse bias V.sub.
When the reverse bias is applied between the anode electrode film 34 and the cathode electrode film 32, the PN junction located between each P.sup.+ -type area 46 and the N.sup.-- -type layer 40 is reverse-biased, and a depletion layer develops and expands into the N.sup.-- -type layer 40 which as a low impurity concentration.
This current path (i.e., the portion 58) expands when a forward bias is applied to the JBS rectifier, and a forward current thereby flows, the substrate therefore has a high current efficiency, and the JBS rectifier exhibits a forward-current characteristic extremely similar to that of the conventional SBD rectifier.
Diode - Wikipedia, the free encyclopedia (3022 words)
In vacuum tube diodes, a current is passed through the cathode, a filament treated with a mixture of barium and strontium oxides, which are oxides of alkaline earth metals.
Their forward voltage drop at forward currents of about 1 mA is in the range 0.15 V to 0.45 V, which makes them useful in voltage clamping applications and prevention of transistor saturation.
After a forward current has been passing in an SRD and the current is interrupted or reversed, the reverse conduction will cease very abruptly (as in a step waveform).
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