A simple presentation of the Schottky Barrier Diode

1. SCHOTTKY BARRIER
DIODE
Presented by Xyriz P. Estrellado

2. SCHOOTKY DIODE
Made by Walter Schottky in Germany, 1938
Known as Hot Carrier Diode or Surface Barrier
Has quick response time
Has low turn-on voltage
Low junction capacitance in applications from
power rectification to RF signal applications

3. SCHOOTKY DIODE
 Widely used for radio frequency
 Used as rectifiers in switched-mode power
supplies
 Reduces conduction loss
 PN junction

4. PART NUMBER

5. STRUCTURE
 Can be manufactured in a
variety of forms. The most
simple is the point contact
diode where a metal wire is
pressed against a clean
semiconductor surface.

6. SCHOTTKY DIODE RECTIFIER
SHOWING WITH GUARD RING

7. CURRENT THROUGH A
SCHOTTKY JUNCTION TO THE
VOLTAGE

8. IV RELATIONSHIP

9. CURRENT VS. VOLTAGE
CURVES FOR SCHOTTKY DIODES
OF VARIOUS BARRIER HEIGHTS

10. EQUIVALENT CIRCUIT

11. APPLICATIONS
 RF mixer and detector diode
 Power Rectifier
 Power OR circuits
 Solar Cell Applications
 Clamp Diode