Basic electronics

What are Schkotty diodes.What is the application of the diodes

Try a Google search for 'Schottky'

A Schottky diode is sort of a half junction, It is made by coating N type semiconductor with a metal. Schottky diodes have about half the forward drop of a full PN junction, but also has very low reverse voltage capability, compared to PN junction diodes.

In a normal PN junction diode, the p side injects holes into the N side and the N side injects electrons into the P side, where these minority carriers find their opposites and disappear. But when a reverse bias is suddenly applied, the minority carriers turn around and head back across the junction and must all be swept out before the diode achieves reverse bias shut off.

Since there is no source of holes in a Schottky half junction pass to the N type material during forward bias (metals conduct entirely with electrons, so they simple absorb the electrons passes from the N side) there is no reverse bias delay when the diode is reverse biased, just a variable capacitance as the electrons are pulled back from the metal when the N side switches to positive bias.

"karthik" wrote in news: snipped-for-privacy@g47g2000cwa.googlegroups.com:

Try doing a google search for "Schottky diode" (Note the spelling.)

I see you're already using Google Groups, so you're halfway there.

Puckdropper

I found a fairly detailed explanation for you.

Dave :)