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They are specifically formulated in paste (micro-particles) [3] for use in scanning electron microscopy (SEM) and other electron optical applications find use in producing or repairing printed circuit board (PCB) tracks, to paint-on an electrical screen, or to make electrical connections to non-solderable surfaces. [4]
Arctic Silver Inc. is a privately owned engineering corporation which develops and manufactures thermally conductive compounds and thermal adhesives for the application of heat sinks to high-powered electronic components such as processors, LEDs, chipsets and other electronic devices.
Heterojunction solar cells are typically metallised (ie. fabrication of the metal contacts) in two distinct methods. Screen-printing of silver paste is common in industry as is with traditional solar cells, with a market share of over 98%. [3] However low-temperature silver paste is required for SHJ cells.
Silver is rarely used for its electrical conductivity, due to its high cost, although an exception is in radio-frequency engineering, particularly at VHF and higher frequencies where silver plating improves electrical conductivity because those currents tend to flow on the surface of conductors rather than through the interior.
The sticky paste temporarily holds components in place; the board is then heated, melting the paste and forming a mechanical bond as well as an electrical connection. The paste is applied to the board by jet printing, stencil printing or syringe; then the components are put in place by a pick-and-place machine or by hand.
Mechanical wire wrap tool Electrical wire wrap tool; pneumatic (air-powered) tools are also available. A "wire wrap tool" has two holes. The wire and 1 ⁄ 4 in (6.4 mm) of insulated wire are placed in a hole near the edge of the tool. The hole in the center of the tool is placed over the post. The tool is rapidly twisted.
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The contacts are the current-carrying part of the contactor. This includes power contacts, auxiliary contacts, and contact springs. Contact material is chosen for high electrical conductivity, mechanical strength, and stability under arcing and oxidation. Commonly used metals include alloys of tungsten, molybdenum, copper, and others.
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