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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 ...
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).
The boules may be either semiconductor (e.g. electronic chip wafers, photovoltaic cells) or non-conducting inorganic compounds for industrial and jewelry use (e.g., synthetic ruby, sapphire). Single crystal ingots of metal are produced in similar fashion to that used to produce high purity semiconductor ingots, [3] i
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.
Wafers of single-crystal sapphire are also used in the semiconductor industry as substrates for the growth of devices based on gallium nitride (GaN). The use of sapphire significantly reduces the cost, because it has about one-seventh the cost of germanium. Gallium nitride on sapphire is commonly used in blue light-emitting diodes (LEDs). [68]
Indium is a technology-critical element used primarily in the production of flat-panel displays as indium tin oxide (ITO), a transparent and conductive coating applied to glass. [ 15 ] [ 16 ] [ 17 ] Indium is also used in the semiconductor industry , [ 18 ] in low-melting-point metal alloys such as solders and soft-metal high-vacuum seals.
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.
Palladium is also used in electronics, dentistry, medicine, hydrogen purification, chemical applications, groundwater treatment, and jewelry. Palladium is a key component of fuel cells, in which hydrogen and oxygen react to produce electricity, heat, and water. Ore deposits of palladium and other PGMs are rare.