Solid and Semiconductor Devices

1.1 Structure of SolidsAll the things we see around us are mainly exists in three states i.e. solid, liquid and gas. The atoms, ions and molecules of these matters are held together with some force...

Introduction to Semiconductors

Energy band theory of solids

1. WHAT IS A ENERGY BAND?=> like energy levels, energy bands are also permitted "region" where a electron can exist in a atom or a molecule.  as the name suggests, energy band are much broader p...

Introduction to Transistor

The name of the transistor is for its transfer resistor action. It has a very important property of amplifying weak signals.It is a semiconductor device made by 2 PN junction diode.Types of Transi...

Types of Semiconductors

Nanotechnology

Nanotechnology is the branch of physics that deals with the study of few hundred atoms.Mission of Nanotechnology: To increase the ratio of  surface area to volume.This helps to increase the storage...

P-N junction diode

1.  WHAT IS P-N JUNCTION DIODE?=>  it is a semiconducor that carries current only in one direction.2. HOW IS A P-N JUNCTION FORMED?    => when you attach a p-type and an n-type semiconductor ...