New types of optoelectronic molding compounds

New optoelectronic molding compounds have been developed which provide 40-50% less moisture absorption than previous generation materials when subjected to 24 hours in boiling water. One of these new materials also exhibits a higher Tg than previous generation compounds. These compounds have other unique characteristics. They transmit at wavelengths as low as 250 nm compared to only 300 nm with some commonly used epoxies, and they are manufactured as a liquid which gives them complete uniformity and optical clarity