Electrode structures for LEDs with increased active area

Details Electrode structures for LEDs with increased active area Electrode structures for LEDs with increased active area

2010-05-03

2011-12-20

Tran, Minh-Loan T (Department: 2826)

Active solid-state devices (e.g., transistors, solid-state diode

Combined with electrical contact or lead

Of specified material other than unalloyed aluminum

C257S098000, C257S099000, C257SE33066, C257SE33068, C257SE33072

Reexamination Certificate

active

08080879

ABSTRACT:
An electrode structure is disclosed for enhancing the brightness and/or efficiency of an LED. The electrode structure can have a metal electrode and an optically transmissive thick dielectric material formed intermediate the electrode and a light emitting semiconductor material. The electrode and the thick dielectric cooperate to reflect light from the semiconductor material back into the semiconductor so as to enhance the likelihood of the light ultimately being transmitted from the semiconductor material. Such LED can have enhanced utility and can be suitable for uses such as general illumination. The semiconductor material can have a cutout formed therein and a portion of the electrode can be formed outside of the cutout and a portion of the electrode can be formed inside of the cutout. The portion of the electrode outside the cutout can be electrically isolated from the semiconductor material by the dielectric material.

REFERENCES:
patent: 5103288 (1992-04-01), Sakamoto et al.
patent: 5399885 (1995-03-01), Thijs et al.
patent: 5523590 (1996-06-01), Ogihara
patent: 5552667 (1996-09-01), Cho
patent: 5726805 (1998-03-01), Kaushik et al.
patent: 6121636 (2000-09-01), Morita et al.
patent: 6211537 (2001-04-01), Shimizu
patent: 6255129 (2001-07-01), Lin
patent: 6294018 (2001-09-01), Hamm et al.
patent: 6335215 (2002-01-01), Yuang
patent: 6404792 (2002-06-01), Yamamoto
patent: 6451712 (2002-09-01), Dalton et al.
patent: 6455340 (2002-09-01), Chua
patent: 6529541 (2003-03-01), Ueki et al.
patent: 6614055 (2003-09-01), Kusuda et al.
patent: 6621223 (2003-09-01), Hen
patent: 6699719 (2004-03-01), Yamazaki et al.
patent: 6728281 (2004-04-01), Santori
patent: 6784462 (2004-08-01), Shubert
patent: 6816527 (2004-11-01), Ueki
patent: 6905618 (2005-06-01), Matthews et al.
patent: 6919583 (2005-07-01), Tagami et al.
patent: 6960779 (2005-11-01), Shields et al.
patent: 7012752 (2006-03-01), Choi et al.
patent: 7075962 (2006-07-01), Ryou et al.
patent: 7078257 (2006-07-01), Sakamoto et al.
patent: 7116691 (2006-10-01), Ando
patent: 7129512 (2006-10-01), Shigihara
patent: 7151284 (2006-12-01), Gwo
patent: 7173293 (2007-02-01), Taylor et al.
patent: 7268485 (2007-09-01), Tyan
patent: 7301274 (2007-11-01), Tanaka
patent: 7307291 (2007-12-01), Wu
patent: 7321196 (2008-01-01), Cheng
patent: 7405431 (2008-07-01), Aoyagi et al.
patent: 7462861 (2008-12-01), Slater, Jr. et al.
patent: 7573074 (2009-08-01), Shum
patent: 7737455 (2010-06-01), Shum
patent: 2001/0010863 (2001-08-01), Huang
patent: 2001/0015443 (2001-08-01), Komoto
patent: 2001/0042866 (2001-11-01), Coman et al.
patent: 2004/0028103 (2004-02-01), Ueki
patent: 2005/0056855 (2005-03-01), Lin et al.
patent: 2005/0211989 (2005-09-01), Horio et al.
patent: 2006/0072640 (2006-04-01), Johnson et al.
patent: 2007/0012930 (2007-01-01), Liu
patent: 2007/0085100 (2007-04-01), Diana et al.
patent: 2009/0261373 (2009-10-01), Shum
patent: 2010/0133575 (2010-06-01), Shum
patent: 2010/0163911 (2010-07-01), Shum
patent: 2001-176823 (2001-06-01), None
patent: 2003-224297 (2003-08-01), None
patent: 2005-197289 (2005-07-01), None
patent: WO2007/136391 (2007-11-01), None
patent: WO2007/136392 (2007-11-01), None
“Reflection (physics)” Wikipedia, the free encyclopedia, Aug. 26, 2004, downloaded from <http://web.archive.org/web/20040826062438/http://en.wikipedia.org/wiki/Reflection—(physics).
“Thin-film interference” Basic Physical Optics (E-III-3). May 9, 2003, downloaded from <http://web.archive.org/web/20030509188314/http://cord.org/step—online/st14eiii3.htm>.
“Filmetrics: Refractive Index Database”, downloaded from http://www.filmetrics.com/refractive-index-database, retrieved from the internet on Jan. 15, 2011, 2010.

Affiliated with

Also associated with

Rating

Electrode structures for LEDs with increased active area does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrode structures for LEDs with increased active area, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrode structures for LEDs with increased active area will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4310560