Silicone materials for LED packaging

Maneesh Bahadur; Ann W. Norris; Afrooz Zarisfi; James S. Alger; Christopher C. Windiate

doi:10.1117/12.681715

12 September 2006 Silicone materials for LED packaging

Maneesh Bahadur, Ann W. Norris, Afrooz Zarisfi, James S. Alger, Christopher C. Windiate

Proceedings Volume 6337, Sixth International Conference on Solid State Lighting; 63370F (2006) https://doi.org/10.1117/12.681715
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

Silicone based materials have attracted considerable attention from light emitting diode (LED) manufacturers for use as encapsulants and lenses for many high brightness LED (HB LED) devices. Currently silicones function in two key roles in HB LED devices, (1) as protective lenses and (2) stress relieving encapsulants for wire bond protection. The key attributes of silicones that make them attractive as light path materials for high brightness HB LEDs include their high transparency in the UV-visible region, controlled refractive index (RI), stable thermo-mechanical properties, and tuneable modulus from soft gels to hard resins. This paper will describe recent developments in moldable silicone hard resin materials. Progress on cavity moldable and liquid injection moldable (LIM) silicone compositions for discreet components is described. Also, an example of liquid injection overmolding is presented.

Citation Download Citation

Maneesh Bahadur, Ann W. Norris, Afrooz Zarisfi, James S. Alger, and Christopher C. Windiate "Silicone materials for LED packaging", Proc. SPIE 6337, Sixth International Conference on Solid State Lighting, 63370F (12 September 2006); https://doi.org/10.1117/12.681715

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available