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First you must obtain ultra ultra pure silicon.
Then you contaminate it a very precisely controlled manner with very tiny amounts of other carefully selected elements that will produce the desired changes to its electrical properties.
There are many means to produce this controlled contamination that is called doping:
- alloy melting
- diffusion
- ion beam bombardment followed by thermal annealing
- etc.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoAlmost any element can be used as a dopant in semiconductors, but the most useful are the trivalent (so called P-type) and the pentavalent (so called N-type) elements. This is true of all semiconductors, not just silicon.
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Is nylon put on a tarpaulin to make it waterproof?
It isn't regular nylon which is put on a tarpaulin to make it waterproof. It is a substance called silnylon, which is a blend of nylon and silicon which is used for waterproofing.
What is Adhesives and Sealants?
Adhesives are usually chemical compounds used to bind two materials together. Sealants are substances used to keep out other substances. Examples: Glue is an adhesive You put sealant on wood to keep it from absorbing water
Can the overflow that holds the flapper be removed and replace the rubber gasket under it?
yes on a toilet I am guessing .. you can take the tank off the bowl and unscrew the nut of the overflow and replace the rubber seal. To make sure you wont get mad if it leaks after you put it all together is run a bead of CLEAR silicon around the new rubber seal and around your tank washers before you put it together and it will seal up any tiny holes or misalignment you have.
What is product production?
product is something that people put things in the product to make it smell or make your hair puffy
How do you make a catapult to launch an egg?
you put an egg in a cannon and shoot itweeniers
How can i Join two N and P semiconductor?
you can't do that, silicon must mantain its crystalline structure without too many broken bonds. that's the way a junction is made: you take a lowly-doped silicon, say p, and then make n-ion implantation on its surface. (n-dopant is accelerated by a field and shooted against silicon surface, then a thermal annealing is done to re-estabilish crystalline structure of silicon surface). you stop when p-dopant is negligible with respect to n. it's like sugar and coffee: if you put a lot of sugar, taste is sweet, and you don't perceive coffee bitter taste. this is called dopant compensation: if you dope a semiconductor with Nn and Np (# of n and p dopant atoms / volume), the result will be same as having a Nx=Nn-Np doped semiconductor. that's why in bipolar junction transistors base is doped more than collector but less than emitter (you start with collector, then you make the base and finally the emitter)
Is nylon put on a tarpaulin to make it waterproof?
It isn't regular nylon which is put on a tarpaulin to make it waterproof. It is a substance called silnylon, which is a blend of nylon and silicon which is used for waterproofing.
Can you use vaseline to grease the distributor sockets to make it easier to put wires on sockets?
No. Use dielectric (silicon) grease.
Do you put silicon pan directly on oven rack?
yes, you can put silicon directly on an oven rack. depending on what u r making keep the stability of silicon in mind so you don't get burned by liquid contents.
What substances are put into Swimming Pool Water?
Substances????
Can you use silicon to fix holes in your exhaust?
absolutely not, normal silicon melts at much too low of a temperature to put on exhaust. They make a special paste that comes in a tube that you put on exhaust holes and it hardens under the high temperatures. I have used it on my truck and it works really well.
What is produced when you put carbon and silicon together?
When heated, they form Silicon carbide(SiC) a black and very hard compound.
What are arsenic doped wafers used for?
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.
Do you put Pam on silicon?
Yes, non-stick cooking sprays can be used on silicon baking pans, although food is less likely to stick to silicon than to other types of pans.
What are two uses that silicon is put to?
Computer Chips, Breast Implants.
Where is the right place to put the silicon stuff that comes with the new ignition wires?
The silicon stuff is to help keep the spark plug boots from sticking to the spark plug, so put it in the spark plug boot.
How do you prepare silicon crystals at home?
Its very easy to make silicon.. just put your equipment out and pull the skin back and pull the skin with the wet hand forword as well as you will be enjoyed with your self..
