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Various fields utilize precious metals. In fact, precious metals are also used in everyday places
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Various fields utilize precious metals. In fact, precious metals are also used in everyday places
TANAKA DIGITAL SHOWROOM
Details
Communication devices such as smartphones contain many electronic components. Gold tin alloy lids and silver solder cladded materials are used in increasingly miniaturized quartz crystal devices and sensors to ensure their stable and accurate operation. Gold and silver thin-film electrodes and bonding wires are also used in power amplifiers, for which even higher performance is required in the 5G era.
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A wide variety of precious metals, including gold, silver and palladium, are used as brazing filler metals in rocket engine manufacturing. The complex-shaped components must withstand the high temperatures and speeds of combustion gases and also serve as heat exchangers. They are assembled using a variety of brazing technologies to ensure their performance even under harsh environmental conditions.
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Display devices, such as televisions, smartphones and digital signage, are used to every space in our daily lives. The glass manufacturing equipment used for these devices uses reinforced platinum and platinum-rhodium alloys, which are chemically stable and heat resistant. Various precious metal materials, including gold and silver sputtering targets, evaporation materials and pastes, are also used in the backlight LEDs of liquid crystal displays.
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Hard disk drives are often used as high-capacity storage media in data centers and other facilities. To store and maintain a large amount of data for a long period of time, a platinum alloy thin film, which is magnetically strong and stable, and a ruthenium thin film, which promotes the growth of the former, are formed on the media by sputtering. The growth of magnetic recording media, typically hard disk drives, and the precious metal alloys that support them are essential to the recording of ever-increasing amounts of data.
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Electrification is accelerating in the automotive industry. TANAKA’s products are also used in power semiconductors, as one of the key components supporting power devices. Thick bonding wires and ribbons that can withstand high currents are used to bond (electrically relay) power semiconductor devices to external electrodes and silver adhesives with high heat resistance and high thermal radiation properties are used to bond the devices to circuit boards.
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Semiconductors are used in many products indispensable to our daily lives, such as personal computers, smartphones, televisions and other home appliances. Bonding wire, an ultra-fine wire made of gold or other materials, is used to bond (electrically relay) the silicon chip, which is the core of a semiconductor, with the lead frame. In recent years, wires with a variety of properties have been developed, including palladium-coated copper wire (PCC), which is copper coated with a precious metal to add oxidation resistance, and highly reflective silver alloy wire.
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Fuel cells generate electricity directly from hydrogen and oxygen. The core component of a fuel cell, a clean energy source with high power generation efficiency and no CO2 emissions, is an electrocatalyst made of platinum or platinum alloys. Fuel cell vehicles are powered by electrical energy generated using this principle. In household fuel cells, multiple precious metal catalysts are also used in the process of extracting hydrogen from city gas. In recent years, the method of producing hydrogen through water electrolysis has been attracting attention, and precious metal electro catalysts are also used in this process.
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Gold nano particles show an extremely intense red color even in minute quantities. Leveraging this property, the solution has been used as a chromogenic agent for detection lines in in-vitro diagnostic kits, typically pregnancy and influenza tests. In recent years, COVID-19 diagnostic kits have also been developed and used in the medical field.
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