A semiconductor is a material whose electrical conductivity properties fall between that of a conductor and that of an insulator.
The atoms that make up any material come in three forms: metal, non-metal and some few in between. Metals are conductors because they have few electrons in the outer electron sphere which can easily be replaced and used for concuting electricity. Non-metals usually act as insulators because their outer electrons cannot be easily replaced thus inhibiting electron flow. Those atoms in between do not conduct electricity as easily as metals but are not as good insulators as non-metals either so they are called semi-conductors.
The great thing about semi-conductors is that they lower their resistance to electricity when an electric field is applied to them. This allows for "tricks" like diodes which let electricity flow in only one direction and transistors which act as a switch letting electricity flow or not depending on the presence or absence of another current. The last thing is the basis for micro chips which in turn are the basis of any modern electronic device.
Semiconductor means having conducting properties between conductors and insulators. They have forbidden energy gap of 1ev, which can be easily overcome by providing supply . At room temperature they act like insulators and after providing supply they act as an conductor. They Have Negative temperature coeffecient - Means on increasing temperature resistivity decreases. By increasing doping their conducting properties can be increased. Kirti
Germenium and silicon are the examples of Semiconductors.
Those semiconductors in which some impurity atoms are embedded are known as extrinsic semiconductors.
power semiconductorspower semiconductors can drive large currents during forward biassemiconductorsemiconductors drive small currents during forward bias
many of them.
Commonly doped silicon is used to make semiconductors, but advancements in organic electronics now mean that semiconductors can be made from molecules made from elements such as carbon, hydrogen, oxygen, sulphur, nitrogen and a few others.
Application of semiconductors
Transistors are made out of semiconductors, yes.
semiconductors
NXP Semiconductors was created in 2006.
The population of NXP Semiconductors is 28,150.
The population of Horizon Semiconductors is 120.
The population of Horizon Semiconductors is 2,007.
Metalloids when used is electronics are called semiconductors.
J. Tauc has written: 'Photo and thermoelectric effects in semiconductors' -- subject(s): Crystals, Electric properties, Photoelectricity, Semiconductors, Thermoelectricity 'Amorphous and liquid semiconductors' -- subject(s): Amorphous semiconductors, Liquid semiconductors
Intrinsic refers to the doping -- intrinsic semiconductors are not doped. Whether compound or not, if they are not doped they are intrinsic.
Horizon Semiconductors was created in 2003-01.
Semiconductors do not conduct current as well as conductors.