5030 Material ECOPLATE™ METALLIC CONFORMAL COATING PROCESS TECHNICAL BULLETIN
While the ECOPLATE process for applying a metallic conformal coating lends itself to use with many metals or alloys,Chomerics’ Research and Development has derived a high-purity tin/zinc alloy suitable for the full range of today's high-est-performance electronic applications.ECOPLATE 5030 is a pure metal wire with a metallurgical composition free of defects or contaminants. When applied with the automated ECOPLATE process,it conforms to the substrate much like paint, but with the superior EMI shielding performance of solid metal. This highly engineered laminar film has low porosity and oxidation, and requires no curing or further processing.
The ECOPLATE 5030 alloy was developed specifically for Chomerics’automated ECOPLATE coating process,which produces a uniform film build of the desired thickness. In a single pass,the low-melting point alloy is atomized and sprayed under tightly controlled particle size, temperature and velocity. The molten metal flows, flattens and cools almost instantaneously, possessing insufficient thermal mass to deform thin-walled plastic substrates.
A typical film build for ECOPLATE 5030 material is 25 μm (0.001 inch), but significantly thicker layers or very thin layers down to 12.5 μm (0.0005 inch) are achievable, with equal ease of application on horizontal surfaces or vertical walls.
Because the alloy requires no polymer compounding and is not a precious metal, the material cost for a 1-mil film layer is substantially lower than that of plating or painting, while EMI shielding performance is superior.
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Application note & Design Guide |
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Please see the document for details |
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