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A Glimpse into Electronics Potting

In terms of electronics, the word, "potting," is known as the process by which a complete electronics assembly is bathed in a particular compound with the intention of protecting the components from moisture and other corrosion-causing agents, vibration, and shock.  Typically, silicon rubber gels are used for the purpose or thermo-setting plastics as an alternative. 

 

Circuit board assembly often have coat assemblies that come with a film of transparent conformal coating in place of potting. Conformal coating offers most of potting's benefits, though it is more lightweight and demands a less complicated process during repair, testing, and inspection. 

 

Urethane, silicone, epoxy or any other low glass transition temprature (Tg) compound is used in the process of potting a surface-mount circuit board. This is due to high Tg potting compounds' ability to dissolve solder bonds while they stiffen and reduce in size when subjected to low temperatures. Visit http://www.britannica.com/EBchecked/topic/190490/epoxy-resin to read facts about epoxy resin.

 

Integrated Circuit Packaging

 

Integrated circuit packaging is the finishing phase of semiconductor device fabrication in the electronics manufacturing process. That's when the cluster of semiconducting material is wrapped in a case that serves to shield it from corrosive and other damaging agents. Called a "package," the case makes sure that the electrical contacts that exist between the device and a circuit board are well-protected.

 

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 XYZ Dispensing robots packaging, which actually involves mounting and linking of integrated circuits and the rest of the components into printed circuit boards. 

 

Resin Dispensing System

 

A technical installation at http://www.dispenserite.ca/meter_mix_dispense_machine.html for casting resin processing is called a resin dispensing system, where the objective is to fill, seal, cover or soak technical parts. This is especially done in the area of electricity and electronics, such as LCDs, transformers, and the like. Sealing by casting has become very popular today because of its ability to speed up production, boost longevity and improve the performance of the parts. Repair of sealed parts, on the other hand, is not possible.

 

 Applications

 

Besides electronic part sealing, the process has several other applications. For instance, it is also utilized in the process of producing LEDs. Light-emitting diodes are created in mainly automated lines, and a segment of it is distribution in translucent plastics. To reduce the price of these lights, short working cycles are very important. Fine copper wire in multiple winding layers is essential to transformers and electric motors. These days, they are typically covered in resin as a way to boost insulation and protect them from environmental agents.

 

Because the process is messy and has some problems associated with it, some do not use potting. However, a lot of this stems from a lack of knowledge of options, inefficient design, or simply a poor choice of potting compound or even a poor manufacturing process design.

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