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when p-type and n-type semiconductor materials are joined p-n junction diode is formed
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∙ 10y ago
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∙ 14y agoTransistor is made from silcon
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What are transistors made of?
Transistors are made from semiconductor materials. Silicon transistors are currently the most common.COMMONSiliconGermaniumGallium-Arsenide (GaAs)Silcon-GermaniumGallium Nitride (GaN)DiamondRARE
What do transistors do in a circuit?
Transistors provide most of the activities a circuit needs to operate. In their most basic representation, transistors are amplifiers. That is, they take and amplify a signal from the level produced by a microphone and amplify it enough to blast it out through a speaker. Transistors are also used on decision making circuits, like electronic gates and Central Processing Units (CPUs). Solid state, electronic systems like desktop computers, cell phones, and GPS devices would not be possible without transistors.
How many transistors are in a radio?
Depends on the radio. Early Transistor radios started with just one and it was to replace the valve which was in turn used for signal amplification. Today, a sophiticated radio may have several chips inside them that can contain millions of transistors each. There is no absolute definitive answer to this question.
What was a Hybrid Radio?
One form of hybrid radio, appearing in the late 1950s, used valves (vacuum tubes) and transistors together. Early transistors worked fine at audio frequencies, and were much more efficient, using much less battery power. They could not perform at radio frequencies, however. Vacuum tubes had been used at radio frequencies for many years, but the push to miniaturise them led to lower performance. Even the subminiature types (about the diameter of a cigarette) still used a lot of battery power to operate. The hybrid radio used valves in the radio frequency end (usually three) and transistors in the audio end (usually two). This design made best use of the advantages of valves and transistors. Transistor development was rapid, and all-transistor radios appeared soon after hybrid sets were marketed. They were only available as battery portables. Hybrid sets are among the rarest of mass-produced radios.
Why was the field effect transistor invented?
Field-effect transistors were invented by Julius Edgar Lilienfeld in 1925 and by Oskar Heil in 1934, but practical devices were not able to be made until 1952 (the JFET). The MOSFET, which largely superseded the JFET and had a more profound effect on electronic development, was first proposed by Dawon Kahng in 1960.
Are transistors semiconductors?
Transistors are made out of semiconductors, yes.
What are transistors made of?
Transistors are made from semiconductor materials. Silicon transistors are currently the most common.COMMONSiliconGermaniumGallium-Arsenide (GaAs)Silcon-GermaniumGallium Nitride (GaN)DiamondRARE
Is a CPU made of transistors?
Yes it is!
How do transistors relate to chemistry?
Transistors are made of materials. They have to be extracted and purified. This relies on chemistry and Materials Science.
What is the best electronic ever made?
transistors..
What are transistors made from?
The vast majority of all transistors are nearly pure silicon, with small amount of carefully added impurities.A small but significant number of transistors are mostly germanium.
What key techonology made the microprocessor possible?
Transistors
How are transistors made from arsenic?
This is the gallium arsenide - GaAs.
Diodes and transistors are made of semiconductor material such as germanium and what?
Silicon
Was Germanium used in transistors?
Yes, germanium was the only material used in transistors from when they were invented in 1947 until 1954 when the first successful silicon transistor was made. However the use of germanium still dominated transistors until the silicon mesa transistor was made commercially available by Fairchild Semiconductor in 1958. Development of the silicon planar transistor by Fairchild Semiconductor the next year ultimately made the integrated circuit possible. While almost all transistors today are silicon, there are still uses for germanium transistors so a few types are still made.
What are transistors used for?
Transistors have two basic functions: # an electrically controlled electric switch # an electrically controlled "proportional valve" which can alter currents and voltages, or can amplify electric signals. Transistors can also be configured as Oscillators which provide an AC signal with constant frequency. Either an amplifier circuit or a switching circuit can be wired as an oscillator. Transistors can be used to form logic gates: And, Or, and Invert. Computers are made from logic gates, so computers can be made entirely from transistors. Transistors are in use in virtually all electronic devices. PC processors are composed of millions of tiny transistors. A transistor radio may have had only 6-10 transistors to enable operation. A late model car may have 10 to 15 computers comprised of thousands of transistors to perform all manner of operations in the vehicle.
Do transistors follow ohm's law?
As transistors are made of semiconductors, they do notfollow Ohm's law.A: they cannot follow exactly ohms law since they are themselves no linear active devices
