Paper Title:
Rectangular Microlens Array Having High Sag for Multi Chip LED Packaging
  Abstract

A novel rectangular shape microlens array having high sag for solid-state lighting is presented. The rectangular shape of proposed microlens can maximize the fill factor of silicon based light-emitting-diode (LED) packaging and minimize the optical loss through the reduction of unnecessary reflection at the same time. Microlens, which has high sag, over 3 75 μm and large diameter, over 3 mm can enormously enhance output optical extraction eff iciency. Moreover wafer level packaging technology is adopted to improve the aligning accu racy and mass production of LED packaging. This wafer level microlens array can be direc tly fabricated on LED packaging using replication method. It has many advantages in optica l properties, low cost, high aligning accuracy, and mass production.

  Info
Periodical
Key Engineering Materials (Volumes 326-328)
Edited by
Soon-Bok Lee and Yun-Jae Kim
Pages
1491-1494
DOI
10.4028/www.scientific.net/KEM.326-328.1491
Citation
W. K. Jeung, C. H. Lim, T. H. Kim, S. M. Choi, "Rectangular Microlens Array Having High Sag for Multi Chip LED Packaging", Key Engineering Materials, Vols. 326-328, pp. 1491-1494, 2006
Online since
December 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yung Kang Shen
Abstract:This paper reports a simple and novel procedure for mold insert of microlens array. The micro injection molding (MIM) and micro...
665
Authors: Xi Qiu Fan
Abstract:Tradition lithographic techniques to produce micrlens array are complicated and time consuming. Due to the capability to replicate...
1562
Authors: Zhe Hu, Wei Guang Yang, Sheng Liu, Ke Tang, Lin Jun Wang, Wei Min Shi
Chapter 10: Functional Materials
Abstract:SnS is a promising p-type semiconductor material for low-cost and low-toxic solar cells due to its exciting properties, such as high...
1402
Authors: Makoto Nanko
Abstract:A simple metallurgical process for fabricating oxide nano-rod array structures via internal oxidation is described. Some dilute alloys such...
348
Authors: Wei Zhang, Bo Zhang, Yu Long Zhang, Da Han, Yong Liang Zhou
Chapter 11: Biomaterials
Abstract:A selectively yeast cell trapping and arraying method was presented, utilizing PDMS micropillar array combining with chemical adhesion. Yeast...
2096