As the epoxy resin can not completely
remove the UV absorption, for blue, white and UV LED UV can increase
the performance of packaging materials, the recent development of
Silicone resins are considered to be blue and UV LED package, the best
packaging materials, the 405nm wavelength of light transmittance of
about 99%, in white and blue LED on the near ultraviolet transmittance
higher than those of epoxy resin. As the transmission rate is high and
will not absorb ultraviolet light, so you can Yangchih resin aging. For
example, the short wave length 400 ~ 450nm light, epoxy resin about 2 ~
5% absorption, whereas silicone resin 400 ~ 450nm light absorption of
less than 1%, such a gap, making the anti-short wavelength area,
Silicone resin has a relatively good performance.
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