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Demonstration of ultrasonic wedge bonding of an aluminium wire between gold electrodes on a printed circuit board and gold electrodes on a sapphire substrate, reverse bonding order. The main classes of wire bonding: Ball bonding; Wedge bonding; Compliant bonding; Ball bonding usually is restricted to gold and copper wire and usually requires heat.
2. Typically, thermocompression bonds are made with delivering heat and pressure to the mating surface by a hard faced bonding tool. Compliant bonding [11] is a unique method of forming this type of solid state bond between a gold lead and a gold surface since heat and pressure is transmitted through a compliant or deformable media. The use of ...
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K+S AG (formerly Kali und Salz GmbH) is a German chemical company headquartered in Kassel. The company is Europe’s largest supplier of potash for use in fertilizer . [ 2 ] The firm also produces and distributes other mineral fertilizers, such as those from magnesium and sulfur .
K's Merchandise Mart, Inc. (usually known as simply K's Merchandise) was a catalog showroom department store based in Decatur, Illinois. [2] It offered furniture, jewelry, and general merchandise, including electronics, at 17 locations in 5 Midwestern states at the time of its closing.
Contact mechanics is the study of the deformation of solids that touch each other at one or more points. [1] [2] This can be divided into compressive and adhesive forces in the direction perpendicular to the interface, and frictional forces in the tangential direction.
Cleco (Cleko) fasteners on an aircraft wing. A cleco, also spelled generically cleko, is a temporary fastener developed by the Cleveland Pneumatic Tool Company. [1] Widely used in the manufacture and repair of aluminum-skinned aircraft, it is used to temporarily fasten sheets of material together, or to hold parts such as stiffeners, frames etc together, before they are permanently joined.