After pertinent research you’ve determined parylene (XY) is the best conformal film for your coating assignment. Especially relevant were XY’s uniform protective and insulative properties, which are useful for numerous applications, ranging from printed-circuit boards (PCBs) to medical implants to military-grade purposes. Among parylene’s other advantages are:
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Conformal coatings differ in their material-specific performance properties as protective films for electronic assemblies. Knowing the operational characteristics of various coating-types and their functional association with assembly components supports successful film application. Issues that confound conformal coating selection and application result from potential post-application problems like:
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Conformal coatings frequently play a critical role in protecting medical, electronics, defense, aerospace, LED, and automotive applications from contaminants and other potentially hazardous substances. But they're not infallible.
Tags: conformal coating, conformal coating removal, conformal coating rework, conformal coating issues, conformal coating inspection
Last week, we discussed what the causes of bubbles in conformal coating are. Now, let’s go through the various ways to remedy the bubbles.
Tags: Diamond-MT, conformal coating, conformal coating rework, conformal coating issues, conformal coating inspection, conformal coating bubbles
Tags: conformal coating, conformal coating process, conformal coating issues, conformal coating inspection, conformal coating bubbles
NASA-STD 8739.1 is the Workmanship Standard for Polymeric Application on Electronic Assemblies, which describes NASA’s technical requirements, procedures, and documenting requirements for staking, conformal coating, bonding, and encapsulation of printed wiring boards and electronic assemblies. Included are requirements which establish the responsibility for documenting, fabrication, and inspection procedures to be used for NASA work including supplier innovations, special processes, and changes in technology. NASA-STD 8739.1 was initially released in August of 1999, with improvements and minor changes to the standard in recent years. The current up-to-date revision is NASA-STD 8739.1A with Change 2.
Tags: conformal coating, conformal coatings, conformal coating standards, conformal coating inspection, NASA conformal coating, NASA-STD 8739.1A
