Shin-Etsu Chemical releases low-RI LED encapsulants

February 17, 2012 — Shin-Etsu Chemical Co. Ltd.’s new KER-7000 Series silicone encapsulating materials offer a low (1.38) refractive index (RI) for high-brightness light-emitting diode (HB-LED) packaging with lower gas permeability.

Shin-Etsu Chemical’s silicone encapsulating materials include a methyl-group material for improved heat resistance and phenyl-group material that is characterized by low gas permeability.

The encapsulant targets low gas permeability, good photo-thermal stability in withstanding high temperatures, and optical transparency over the LED lifetime. The new materialset reduces gas permeability by 1/10, Shin-Etsu reports, to prevent oxidation that leads to light-intensity degradation. The highly transparent encapsulant suits flat-package HB-LEDs.

KER-7000 materials’ heat resistance is at the same level as that of the methyl-group. When compared with the phenyl group, the new product has the same level of gas permeability and much higher resistance to high temperatures.

The series includes 2 hardness-level products: KER-7080 A/B has a hardness level of (Durometer A) 80, and KER-7030 A/B has a hardness level of (Durometer A) 30.

The company is beginning sample shipments, mainly for applications in LED lighting.

Shin-Etsu Chemical, in addition to encapsulating materials, develops heat-radiating die-bond materials, lens materials, reflector materials and moisture-proof insulating materials for HB-LEDs. Learn more at

Visit the new LEDs Manufacturing Channel on!


Easily post a comment below using your Linkedin, Twitter, Google or Facebook account. Comments won't automatically be posted to your social media accounts unless you select to share.

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>


Spectral reflectometer for film thickness measurement
04/08/2014Verity Instruments, Inc. is pleased to announce the availability of its new SP2100 Spectral Reflectometer designed for film thickness measurement f...
New Kimtech Pure G3 EvT nitrile gloves
04/03/2014Kimberly-Clark Professional has introduced a new glove that is designed to provide process protection for the semiconductor and electronics industries....
UVOTECH releases UV-Ozone Cleaning System
04/03/2014Using a UV-Ozone Cleaner, near atomically clean surfaces can be achieved in minutes without any damage to your devices. ...