Difference between Normal Rectifier Diode vs Schottky diode

Hello, readers welcome to the new post. Here we will learn Difference between a normal Rectifier Diode and Schottky diode. The diode is an electronic component that is used to flow current in one direction and not allow current in the opposite direction which means it transforms AC to DC current.

There are different types of diode used in electronics like LED, photodiode, Schottky diode, etc. In this post, we will discuss the differences between the Schottky diode and the rectifier diode. So let’s get started Difference between a normal Rectifier Diode and a Schottky diode

Introduction to Diode

• A Rectifier diode is an electronic devices that transform AC into DC and the process involved in this conversion is called rectification

• The working of the diode is like a valve operation that helps water to flow only in a single way and current also flows in the diode in a single side.
• For the creation of diodes P and N, semiconductor materials are used. P region of the diode is positive and the anode is its name and the N region is negative and called the cathode.
• Silicon is mostly used for diode creation since it has high-temperature handling features, and germanium is also used for making diode when voltage losses are required in low-value

Diode Forward Biasing

• Biasing is involved where input power is applied at the terminals of the diode. In this process, current in the PN junction is due to the option of holes and electrons.
• For forward biased state diode is connected with the positive side at the anode and the negative side of the battery at the cathode. The voltage at biasing is called  Vbias.
• In this circuit of biasing mode, the resistor is connected with the battery and diode in series combination for limiting current and it is called a current-limiting resistor.

Diode Reverse Biasing

Introduction to Schottky Diode

• The Schottky diode is also called the Schottky barriers diode or hot carrier diode. It is a semiconductor diode made with a metallic junction. It comes with low forward voltage losses and high-speed switching.
• If a certain amount of voltage is provided to this diode works in the forward direction and the silicon PN diode comes with a forward biased voltage of 600 to 700mV and the Schottky diode has  150 to 450 mV.

Schottky Diode Construction

• In a Schottky diode, a metal-semiconductor junction is made for metallic parts and semiconductors, which is known as the Schottky barrier.
• The structure of a diode consists of tungsten, platinum, and silicides, combined with semiconductors that have N-doped materials.
• The metallic component of the diode is the anode and N is the cathode which shows that current flows from the metallic side to the semiconductor material based on the conventional current direction.
• The Schottky barrier helps to provide high switching speed and low forward-biased losses.
• The value of forward voltage for this diode is based on semiconductors and metals. N and P semiconductor materials are used for the creation of barriers. and forward bias for P is less.
• When forward biased voltage reduces, reverse leakage current increases so voltage for the P side is in range of  0.5 to 0.7 volts.