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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.
The Society of Vacuum Coaters (SVC) is a non-profit, international, professional organisation for individuals who are involved in depositing films and coatings in vacuum or rarefied environments for surface engineering purposes.
A fluid reservoir to store the main supply of coating fluid for the system; A pump to drive the coating fluid through the system; A slot-die to distribute the coating fluid across the desired coating width before coating onto the substrate; A substrate mounting system to support the substrate in a controlled manner as it moves through the system
Since the coating process takes place at ambient temperature in a mild vacuum, it can be applied even to temperature-sensitive objects such as dry biological specimens. The low temperature also results in low intrinsic stress in the thin film. Moreover, the only gas in the deposition chamber is the monomer, without any solvents, catalysts, or ...
Single-stage vacuum pumps typically produce vacuum to 35 torr (mm Hg) or 47 millibars (4.7 kPa), and two-stage pumps can produce vacuum to 25 torr, assuming air is being pumped and the ring-liquid is water at 15 °C (59 °F) or less. Dry air and 15 °C sealant-water temperature is the standard performance basis, which most manufacturers use for ...
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HVAF coating technology is the combustion of propane in a compressed air stream. Like HVOF, this produces a uniform high velocity jet. HVAF differs by including a heat baffle to further stabilize the thermal spray mechanisms. Material is injected into the air-fuel stream and coating particles are propelled toward the part. [4]
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