The importance of EMI shielding is to protect your electronic device and enhance its performance. It creates a conductive path between two surfaces. They further prevent any kind of electromagnetic transmission, which can be lethal for your electrical circuits. Learn about the top three EMI shielding gasket manufacturing methods in this article to understand the work better.
If you want flexibility in your designs, then try to consider the use of shielding silicones filled with metal-coated particles for EMI protection. These help you to meet tough shielding requirements and provide good environment sealing. They are so flexible that you can get your gasket manufactured in any shape or size.
Now here are three forms of the manufacturing process, Die-cutting, spliced extrusion, custom molded rubber. Each offers advantages, but which one of these four techniques is right for your application?
DIE-CUTTING
The die-cutting technique has part volumes that range from low to high prototypes with tight tolerance. Features such as clean edges and bolt holes with specific radii are readily achievable. Die-cut gaskets can also be supplied with a conductive pressure-sensitive adhesive backing (PSA), eliminating the need for difficult to control liquid adhesives on the assembly line. Kiss-cutting is another form that saves time by easily pulling the release liner off the PSA. Furthermore, the biggest benefit is that they are easily available in the whole world. Die-cut conductive silicone gaskets can be procured from any nearby manufacturing company.
EXTRUDED EMI SHIELDING GASKETS
If you are looking for gasket manufacturing of your flange and groovy applications, extruded gaskets can come in handy. A range of profiles are available in the market like solid O, hollow O, D, etc. Ask your gasket manufacturer to customize the gasket shapes that you prefer or want. These gaskets can sometimes include innovative anti-stretch and press-fit features. Once extrusion and curing are done, the gasket can be cut and spliced to fit your expectations and create EMI shielding enclosure shields. Check the glue to see if it is bonded well. EMI shielding extrusions can be made with a thin outer layer of conductive silicone, leading to efficient use of shielding material.
MOLDED EMI SHIELDING GASKETS
Try to create a custom-molded EMI shielding gasket as it perfectly conforms with your design requirements. This process excludes the die-cut process, which further reduces the cost. Since material like silicone is expensive, it is wise to use a process to reduce the budget. The most obvious benefit to using a custom-molded solution is the ability to conform to three-dimensional designs not suitable for flat or extruded gaskets. Another benefit is that it saves a lot of material from wasting and is very accurate than the other two manufacturing processes. Hence, you can use it for high-volume production.
Now that you are aware of all the three types of the manufacturing process choose wisely.
