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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.
Slot-die coating is a non-contact coating method, in which the slot-die is typically held over the substrate at a height several times higher than the target wet film thickness. [23] The coating fluid transfers from the slot-die to the substrate via a fluid bridge that spans the air gap between the slot-die lips and substrate surface.
Curtain coating is a pre-metered coating method, which means that the exact amount of coating needed to coat the substrate can be calculated before the process is actually accomplished. This is can be done by using the ratio of the flow rate (with respect to volume) and width of the substrate to the speed at which the substrate passes under the ...
Due to its durability, performance and relatively low cost, 4A-GE and 4A-GZE engines and their derivatives have been popular for both professional and amateur racing since their introduction. The most notable application of the 4A-GE in racing was as in the Formula Atlantic series, where in full race trim the engine will produce 250 PS (184 kW ...
Sputter coating in scanning electron microscopy is a sputter deposition process [clarification needed] to cover a specimen with a thin layer of conducting material, typically a metal, such as a gold/palladium (Au/Pd) alloy. A conductive coating is needed to prevent charging of a specimen with an electron beam in conventional SEM mode (high ...
Engine configuration is a single stage fan, with booster stage, driven by a two-stage LP turbine, supercharging a centrifugal HP compressor, driven by a single stage HP turbine. [3]
Data from General characteristics Type: turboshaft Length: 31.5 inches (0.80 m) Diameter: Dry weight: 315 pounds (143 kg) Components Compressor: low-pressure centrifugal, high-pressure centrifugal Turbine: low-pressure, high pressure, 2 power turbine Performance Maximum power output: 1,563 shp (1,166 kW) Specific fuel consumption: ~0.459 lb/(hp⋅h) (279 g/kWh) See also Comparable engines Avco ...
Germanium is emerging as an important material for spintronics and spin-based quantum computing applications. In 2010, researchers demonstrated room temperature spin transport [ 91 ] and more recently donor electron spins in germanium has been shown to have very long coherence times .