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Describe the difference between majority and minority carriers?
Wiki User
∙ 14y ago
FOR n-type semiconductor the majority charge carrier is electron and for n-type semiconductor it is hole.
the majority and minority charge carrier is result of free electron and hole.
the majority charge carrier is responsible for transport of electron.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoThe more abundant charge carriers are called majority carriers. In http://www.answers.com/topic/n-type-semiconductor-2 they are electrons, while in http://www.answers.com/topic/n-type-silicon they are holes. The less abundant charge carriers are called minority carriers; in N-type semiconductors they are holes, while in P-type semiconductors they are electrons. In an http://www.answers.com/topic/intrinsic-semiconductor the concentrations of both types of carriers are equal. Minority carriers play an important role in http://www.answers.com/topic/bipolar-junction-transistor and http://www.answers.com/topic/solar-cell. However, their role in http://www.answers.com/topic/field-effect-transistor-1 (FETs) is a bit more complex: for example, a http://www.answers.com/topic/mosfet has both P-type and N-type regions. The transistor action involves the majority carriers of the http://www.answers.com/topic/field-effect-transistor-1 and http://www.answers.com/topic/field-effect-transistor-1 regions, but these carriers traverse the http://www.answers.com/topic/field-effect-transistor-1 of the opposite type, where they are minority carriers. However, the traversing carriers hugely outnumber their opposite type in the transfer region (in fact, the opposite type carriers are removed by an applied electric field that creates an http://www.answers.com/topic/inversion-layer-1), so conventionally the source and drain designation for the carriers is adopted, and FETs are called "majority carrier" devices.
Wiki User
∙ 9y agoFor doped semiconductors, the difference between majority and minority carriers is the mobility of its electrons. Majority carriers are mobile electrons. Minority carriers, on the other hand, are less mobile electrons.
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Why bjt is a minority carrier device?
Although a small part of the transistor current is due to the flow of majority carriers, most of the transistor current is due to the flow of minority carriers and so BJTs are classified as 'minority-carrier' devices.
Diffrentiate n-type and p-type?
When pentavalent impurity is added to pure semiconductor, it is known as N-Type semiconductor. In N-type semiconductor electrons are majority carriers where as holes are minority carriers. impurities such as Arsenic, antimony are added. When trivalent impurity is added to pure semiconductor, it is know as P-type semiconductor. In P-type semiconductor holes are majority carriers whereas electrons are minority carriers. Impurities such as indium, galium are added.
Why there is no thermal runaway in fet?
in FET the conduction is due to the majority carriers. here the minority carrier conduction doesn't takes place as in BJT. hence the current flow depends only on the majority carriers . hence ther is no thermal runaway in FET.
Leakage current in diode is due to?
The p-region of a diode contains an abundance of holes, but also contains a small percentage of electrons. Similarly, the n-region also contains a small percentage of holes. These are knows as the minority carriers. Again, like charges repel, so when the diode is reverse biased, these minority carriers will migrate toward the boundary region. The minority carriers will recombine at the boundary region, and thus enable an electric current. Because these carriers are few in number (orders of magnitude less than the majority carriers), this current is very small. This represents the leakage current of a diode. The mobility of minority carriers increases with temperature, and heating a diode will cause greater numbers of minority carriers to congregate at the boundary region. This will increase leakage current. Surface contamination on the diode may also allow small amounts of electricity to be conducted, again causing leakage.
What are majority and minority charge carriers in semiconductors?
There are two recognized types of charge carriers insemiconductors. One iselectrons, which carry a negativeelectric charge. In addition, it is convenient to treat the traveling vacancies in thevalence bandelectron population (holes) as the second type of charge carrier, which carry a positive charge equal in magnitude to that of an electron
What is the major difference between a bipolar an unipolar dc?
Bipolar dc involves both majority carrier and minority carriers for conduction while unipolar requires only majority carriers or minority carriers during conduction. point of view based on electronics devices.
What are the majority and minority current carriers in an N-type and a P-type semiconductor?
In an N-type semiconductor, majority current carriers are electrons, while minority current carriers are holes. In a P-type semiconductor, majority current carriers are holes, while minority current carriers are electrons.
Why p type semiconductor has majority charge carrier as hole?
The majority carrier in p-type semiconductor is the hole. Electron carriers in p-type semiconductor are minority carriers. Minority carriers in any semiconductor are produced mainly by heat. Only at absolute zero temperature would there be no minority carriers.
What is the difference between the words majority and minority?
Majority > 50%, Minority < 50%
What is minority charge carrier?
In semiconductor devices there are two types of charge carriers: electrons and holes. In N-type doped semiconductor the majority charge carriers are electrons and the minority charge carriers are holes. In P-type doped semiconductor the majority charge carriers are holes and the minority charge carriers are electrons.Some kinds of semiconductor devices operate using minority charge carriers in part(s) of their structure. The common bipolar junction transistor is one of these, they are sensitive to a phenomenon called thermal runaway because additional minority carriers are produced as temperature increases. (field effect transistors however operate using only majority carriers and are thus not sensitive to thermal runaway)
What is unipolar device?
bipolar devices use both majority and minority current carriersunipolar devices use only majority current carriers
Why bjt is a minority carrier device?
Although a small part of the transistor current is due to the flow of majority carriers, most of the transistor current is due to the flow of minority carriers and so BJTs are classified as 'minority-carrier' devices.
What is the difference between a minority and a majority government?
Majority government is when the province has more then half of the house of commons, and Minority government has less then half.
What is the difference between a majority government and a minority government?
Majority government is when the province has more then half of the house of commons, and Minority government has less then half.
What is the difference between the minority charge carriers and majority charge carriers in diodes?
Majority charge carriers in the N-type side of a semiconductor material are electrons, because N-type semiconductor is doped with a material with 5 valence electrons. Semiconductor materials have 4 valence electrons and hold tightly to 8, so there is a "loose" electron for every atom of dopant. Therefore most of the charge carriers available are electrons. IE, electrons are the majority charge carriers. Minority charge carriers in N-type semiconductor are holes. Only a few holes (lack of an electron) are created by thermal effects, hence holes are the minority carriers in N-type material. The situation is reversed in P-type semiconductor. A material having only 3 valence electrons is doped into the semiconductor. The semiconductor atoms have 4 valence electrons try to hold tightly to 8, so there is a virtual hole created by a "missing" electron in the valence orbit. This acts as if it were a positive charge carrier. Most of the charge carriers are these holes, therefore in P-type semiconductor holes are the majority charge carrier. Again, reverse situation to minority charge carriers. Some electrons are loosened by thermal effects, they are the minority charge carriers in P-type semiconductor.
Diffrentiate n-type and p-type?
When pentavalent impurity is added to pure semiconductor, it is known as N-Type semiconductor. In N-type semiconductor electrons are majority carriers where as holes are minority carriers. impurities such as Arsenic, antimony are added. When trivalent impurity is added to pure semiconductor, it is know as P-type semiconductor. In P-type semiconductor holes are majority carriers whereas electrons are minority carriers. Impurities such as indium, galium are added.
What is difference between majority groups and minority groups?
Majority means it is major, so there's more. Minority means it's minor, meaning there's less.
