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News & Resources

LED Packaging with Silicone Encapsulants

A Light Emitting Diode (LED) is not “one size fits all.” While many LEDs may appear similar, various applications call for different needs. Whether one is deciding how to construct the LED or what the final application is going to be, decisions on what material to use can vary drastically. It is for this reason that a relationship needs to be maintained between the LED packager and material supplier. In most cases, the material of choice for LED packagers is silicone. To accommodate the various needs of the LED packager, silicone has become widely used due to its flexibility. Some attributes of silicone that lend themselves well to the LED industry are a high transparency in the UV-visible spectrum, thermal stability, mechanical and optical properties and an ability to control the Refractive Index (RI).