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Arsenic doped silicon wafers are used as the starting point for computer chips, memory chips, transistors, diodes, LEDs and many other devices. Arsenic is an n-type dopant in silicon, causing it to have an abundance of electrons (n for "negative"). A junction or diode is formed when an n-type region is in contact with a p-type region. A p-type region is formed with Boron for example as the dopant. Here there is a dearth of electrons (or equivalently an abundance of holes or absences of electrons). The holes act like positive carrier (p-type). The entire computer chip consists of lots of n and p regions that form circuits, transistors, etc. The wafer starts out arsenic doped, and then the various other dopants and additives are implanted or diffused into the surface. Then silicon dioxide is grown on top of the wafer which is insulating. Metal is desposited on top of that to create the wires interconnecting the various transistors on a chip. The wafer is diced up into the chips that get put in a package that you see on your computer board. You end up with an entire computer chip that started as an arsenic wafer.
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What kind of poisons are made from arsenic?
Arsenic can be used to create arsenic trioxide, which is a commonly used poison. It is a colorless, odorless, and tasteless crystalline powder that is highly toxic. Arsenic poisoning can lead to symptoms such as vomiting, abdominal pain, and in severe cases, death.
Which element is used as rat poison and is found in the title of of the murder mystery ... and old lace?
Arsenic.
Is arsenic used in Medicines?
Arsenic is not commonly used in medicines today due to its toxic nature. However, in the past, arsenic compounds were historically used in certain medical treatments, such as in syphilis treatment, but these are now largely replaced by safer alternatives due to the potential health risks associated with arsenic exposure.
Highly toxic as are its compounds including its oxide which has the distinct odor of garlic also used in transistors?
The element being referred to is arsenic. Its compounds, such as arsenic oxide, are highly toxic. Arsenic oxide is known for its garlic-like odor and is used in the manufacturing of transistors.
Is arsenic used in nature?
Arsenic can be used as a pest repellent.
What kind of wafers is used at Intel to make computer chips?
Silicone Wafers
Explain why arsenic-doped silicon conducts electric current better than pure silicon?
Pure silicon is intrinsic. It has a high resitivity which means it is a poor conductor of electricity in this state. The dopant that is introduced during the doping process can be arsenic, boron or phosphorous. These are the traditional choices to dope the intrinsically pure silicon. After the pure silicon becomes doped its electrical properties change. The main change is it has a lower resistivity and will conduct electricity. This is why silicon is called a semiconductor.
Erbium-doped optical fiber is used for what purpose?
It is used to make Erbium doped fibre amplifiers (EDFA) and also used to fabricate DFB lasers.
Why only wafers are used instead of any other material?
Your question cannot be answered because you did not say what the wafers are being used for.
Why arsenic is used in ships?
Arsenic can be an alloying component for bronze.
Is germanium n type semiconductor?
Yes, germanium can be doped to become an n-type semiconductor by introducing donor impurities such as phosphorus or arsenic. This process increases the number of free electrons in the material, giving it an excess of negative charge carriers.
Why is pure silicon deliberately made impure again when it is used to make computer chips?
Silicon is essentially an insulator when pure. When generating wells or electron barriers, silicon is Doped with Boron, Phosphorus and Arsenic. The details of how this works can be found in numerous books on IC manufacturing.
Was arsenic used for torture?
Arsenic and his compounds are strong poisons used from many time by murderers.
16 Who used arsenic as a treatment for toothaches?
In ancient China, arsenic was used as treatment for toothaches. They used arsenic pills placed between the teeth to help relieve pain.
How is arsenic used today?
Today, Arsenic is used by the neo-nazi group known as the Nazis. In the 40's Arsenic was used as a poison, but today it's used by the Chinese as a plastic substitute.
How many wafers are in a serving of Nilla wafers?
there are 8 vanilla wafers in one serving of nilla wafers.
What is the duration of Yesterday's Guys Used No Arsenic?
The duration of Yesterday's Guys Used No Arsenic is 1.83 hours.
