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A compound semiconductor is a semiconductor compound composed of chemical elements of at least two different species. These semiconductors form for example in periodic table groups 13–15 (old groups III–V), for example of elements from the Boron group (old group III, boron, aluminium, gallium, indium) and from group 15 (old group V, nitrogen, phosphorus, arsenic, antimony, bismuth).
Coltan is used primarily for the production of tantalum capacitors, used in mobile phones and almost every kind of electronic device. [31] [32] [33] Niobium and tantalum have a wide range of uses, including refractive lenses for glasses, cameras, phones and printers.
The Tanaka Kikinzoku Group, founded in 1885, is a Japanese manufacturer of precious metals materials focusing mainly on products for the electronics, semiconductor and automotive industries. [2] Tanaka's European subsidiary is Tanaka Kikinzoku International (Europe) GmbH in Frankfurt , Germany and its US subsidiary is Tanaka Kikinzoku ...
The best known precious metals are the precious coinage metals, which are gold and silver. Although both have industrial uses, they are better known for their uses in art , jewelry , and coinage. Other precious metals include the platinum group metals: ruthenium , rhodium , palladium , osmium , iridium , and platinum , of which platinum is the ...
Palladium is also used in jewelry, dentistry, [41] [42] watch making, blood sugar test strips, aircraft spark plugs, surgical instruments, and electrical contacts. [43] Palladium is also used to make some professional transverse (concert or classical) flutes. [44] As a commodity, palladium bullion has ISO currency codes of XPD and 964.
Last month, Beijing banned the export of gallium, germanium, and antimony, key metals used in chipmaking, to the U.S. after the U.S. Commerce Department subjected more Chinese companies to export ...
The rare-earth elements (REE), also called the rare-earth metals or rare earths, and sometimes the lanthanides or lanthanoids (although scandium and yttrium, which do not belong to this series, are usually included as rare earths), [1] are a set of 17 nearly indistinguishable lustrous silvery-white soft heavy metals. Compounds containing rare ...
The precious metals market has seen unprecedented growth this year. Gold prices have shattered records, reaching an all-time high of over $2,700 per ounce in October.