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Laurell Technologies WS-400 spin coater used to apply photoresist to the surface of a silicon wafer. Spin coating is a procedure used to deposit uniform thin films onto flat substrates. Usually a small amount of coating material in liquid form is applied on the center of the substrate, which is either spinning at low speed or not spinning at all.
Spin casting is a favored method for fabricating items in the specified materials – low temperature metals and thermoset plastics. Compared to the two main competing processes, injection molding and (zinc) die-casting, spin casting has significant advantages in terms of startup cost and ease of use.
It is said in this page that spin coating will "...spread the fluid by centrifugal force." Since the page describing centrifugal force clearly indicates that this force is imaginary in the sense that it is being used in on the spin coating page, I recommend that the term "centrifugal force" is removed from the description of spin coating (since there is no such force).
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A hand-colored print of George Méliès' The Impossible Voyage (1904). The first film colorization methods were hand-done by individuals. For example, at least 4% of George Méliès' output, including some prints of A Trip to the Moon from 1902 and other major films such as The Kingdom of the Fairies, The Impossible Voyage, and The Barber of Seville were individually hand-colored by Elisabeth ...
After the war, the Otter was used by the Jordanian Army during the First Arab-Israeli War and Dutch Army during the Indonesian Revolution. The Syrian Army also operated the type after the war, with turretless Otter armed with 7.5 mm FM 24/29 light machine gun in pintle mounts or with 37 mm Puteaux SA 18 in a turret taken from other British ...
An alleged Chinese spy who forged a close relationship with Prince Andrew has been identified by a British court, the latest twist in a case that has shone a light on Beijing’s influence inside ...
Donald Trump mocked Canadian Prime Minister Justin Trudeau over his top minister’s surprise resignation — after the pair clashed on how to handle the president-elect’s looming tariffs.