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Semiconductor raw materials like silicon, germanium, and selenium are the purest substances that you will have a chance to encounter. However the process of making semiconductor devices deliberately contaminate the semiconductor with controlled amounts of various impurities.
Other semiconductors like gallium arsenide and the semiconductors used in LEDs are alloys.
Other semiconductors like cadmium sulfide and lead sulfide (galena) are compounds.
Wiki User
∙ 8y ago
Wiki User
∙ 7y agoNo (at least not usually).
Solder is nearly always an alloy of metals - usually lead-tin but many low lead and lead-free solders are becoming more common such as tin-silver-copper, tin-zinc-copper, tin-silver-bismuth, tin-silver-copper-zinc, tin-silver-copper-manganese, indium-silver - - - and a whole host of others. Some are intended to replace lead alloy solders, others are formulated for their special properties such as extra high (or low) temperatures or bonding better with certain metals (such as gold or silver).
There are some instances where pure substances are used as solder including the use of pure tin (mostly in food processing equipment), zinc (for soldering aluminum), bismuth (non-superconducting soldering for low temperature physics work), indium (for thin metal films, extremely low temperatures, sometimes for soldering to aluminum)
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Are semiconductors noble gases?
Definitely not! Gases are not semiconductors. and the noble gases are not conductors even if frozen.
What does free carriers?
Assuming you do not mean the plastic bags at the supermarket checkout that cost nothing, then you may be referring to free charge carriers in electical conductors and semiconductors, which are electrons in metallic conductors and electrons or "holes" in semiconductors. Now what was the question?
Why are tin and lead not used as semiconductor?
because they are not semiconductors. They are metals and rather good conductors.
Is non metal a semi conductor?
No. Nonmetals are generally non-conductors. Metalloids are usually semiconductors.
What properties do metals non-metals and semi-conductors have in common?
They generally look metallic but are brittle (not malleable or ductile). Neither good conductors or insulators but they are semiconductors.
Do nonmetals tend to be just as good conductors as metal?
No, nonmetals tend to be insulators. Some (e.g. carbon) are poor conductors. Semiconductors (e.g. silicon and germanium) in their pure form are insulators but when doped with the right impurities can conduct as good as metals. This is why they are called semiconductors.
Which statement is true of semiconductors?
Semiconductors do not conduct current as well as conductors.
Are non metals semiconductors?
Metals are conductors. Semiconductors are usually non-metals or metalloids.
What are nonmetal that are conductors of heat and electricity?
Semiconductors
Are semiconductors noble gases?
Definitely not! Gases are not semiconductors. and the noble gases are not conductors even if frozen.
What are nonmetals that are intermediate conductors of heat and electricity?
Semiconductors
Elements that are intermediate conductors of heat and electricity?
semiconductors
What is a good example of a non insulator?
There are conductors, semiconductors and insulators. Conductors and semiconductors could be considered noninsulators, so I would say copper but if you want to use semiconductors instead you can say something like doped gallium.
Where does electric current pass?
Electric current passes through substances called "conductors", as well as "semiconductors". Conductors include all metals, and any liquid with ions in it.Electric current passes through substances called "conductors", as well as "semiconductors". Conductors include all metals, and any liquid with ions in it.Electric current passes through substances called "conductors", as well as "semiconductors". Conductors include all metals, and any liquid with ions in it.Electric current passes through substances called "conductors", as well as "semiconductors". Conductors include all metals, and any liquid with ions in it.
Substance in between conductors and insulators used in transistors?
Semiconductors
How are materials classified on the basis of resistivity?
Conductors, semiconductors and insulators.....
What are pure semiconductors?
silicon and germanium
