【第六期】 华进论坛:Comparison of Various Phosphor Deposition Methods for White Light Illumination of LED

2013-08-15

时间:2013年8月21日(星期三)9:20-10:30

地点:NCAP 304大会议室(暂定,根据参会人数调整)

主讲人:李世玮 (Ricky Lee)教授

讲座性质: 公开

参与对象:公司全体研发人员和其他感兴趣的同仁

主办单位:华进半导体封装先导技术研发中心有限公司

支持单位:先进封装技术联合体

【讲座概要】

Alight-emitting diode (LED) is known as a monochrome light source. From thetheory, there is no white light directly emitted from the radiativerecombination at the p-n junction. In order to generate white light, eithertri-color mixing with RGB LEDs or phosphor-converted LED (pc-LED) needs to beimplemented. Among various color tuning methods, blue LED with yellow phosphordeposition is the mainstream for white light illumination in solid statelighting. In general, there are three configurations for the arrangement ofyellow phosphor powder, namely, dispersed, conformal, and remote phosphor. Thispresentation will focus on conformal and remote phosphor and compare variouskinds of phosphor deposition methods. The pro-n-cons of each deposition methodwill be discussed in detail. In particular, some newly developedquasi-conformal and remote phosphor dispensing methods will be introduced.These methods use conventional phosphor dispensing equipment without anymodifications but can save substantial amount of phosphor. In thispresentation, the implementing procedure and processing parameters of severalinnovative phosphor dispensing methods will be demonstrated and compared.

【主讲人简介】

RickyLee received his PhD degree from Purdue University in 1992. He joined the HongKong University of Science & Technology (HKUST) in 1993. During his careerof tenure-track faculty at HKUST, Dr. Lee once was on secondment to serve asChief Technology Officer of Nano & Advanced Materials Institute (NAMI) fortwo and a half years. Currently Dr. Lee is Professor of Mechanical Engineeringand Director of Center for Advanced Microsystems Packaging (CAMP) at HKUST. Healso has two concurrent appointments as Deputy Director of HKUST ShenzhenResearch Institute and Director of HKUST LED-FPD Technology R&D Center atFoshan, Guangdong, China. Dr. Lee is Fellow of IEEE, ASME, and Institute ofPhysics (UK). He is also a Distinguished Lecturer of the IEEE Components,Packaging, and Manufacturing Technology (CPMT) Society. Furthermore, Dr. Leewas elected President of IEEE CPMT Society in 2011 and is serving for the termof 2012-2013.