In manufacturing electronic products, potting is a term that refers to the filling of a complete electronic assembly using a chemical compound with the aim of reducing shock, vibration, and exposure to moisture and other agents that may cause corrosion. Usually, thermo-setting plastic and rubber gels made of silicon are utilized for this purpose.
Majority of circuit board assembly accommodates coat assemblies that have a single transparent conformal coating instead of potting. Conformal coating delivers most benefits of potting, plus it is lighter and simpler to test and repair, as well to inspect.
Potting a surface-mounted circuit board makes use of silicone, epoxy, urethane or other low glass transition temperature (Tg) potting compounds. This has something to do with the fact that high Tg potting compounds are able to loosen solder bonds while they contract and harden in low temperatures.
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Integrated Circuit Packaging
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In electronics manufacturing, integrated circuit packaging is the endpoint of semiconductor device fabrication. That’s when the cluster of semiconducting material is wrapped in a case that serves to shield it from corrosive and other damaging agents. This case is called a “package” which protects the electrical contacts between the device and a circuit board.
Other names by which it is referred to in the integrated circuit industry, include semiconductor device assembly, packaging, assembly, seal or encapsulation. What comes next to the packaging stage is testing of the integrated circuit.
Sometimes, either of these terms is interchanged with electronic packaging, which actually involves mounting and linking of integrated circuits and the rest of the components into printed circuit boards.
Resin Dispensing System
The technical installation for the processing of casting resin is known as the resin dispensing system, whose objective is to fill and seal technical parts, and then cover them. This is especially done in the area of electricity and electronics, such as LCDs, transformers, and the like. An increasing number of parts are sealed by casting, as this hastens the production process and boosts the longevity and performance of the parts. Sealed parts, however, could not be repaired.
There are multiple applications of the process on top of the sealing of electronic parts. For instance, it is also utilized in the process of producing LEDs. Light-emitting diodes are made in completely automated lines, and a section of it is the dispensing in clear plastics. To reduce the price of these lights, short working cycles are very important. In terms of electric motors and transformers, several layers of fine copper windings are basic. They are often soaked in resin today to shield them from environmental factors and to enhance internal insulation.
Because the process is messy and has some problems associated with it, some do not use potting. But this perception is often only due to picking the wrong potting compound, a poor manufacturing process design or a sheer lack of knowledge of one’s options.by