TW200742118A - Light emitter with metal-oxide coating - Google Patents

Light emitter with metal-oxide coating

Info

Publication number
TW200742118A
TW200742118A TW095115206A TW95115206A TW200742118A TW 200742118 A TW200742118 A TW 200742118A TW 095115206 A TW095115206 A TW 095115206A TW 95115206 A TW95115206 A TW 95115206A TW 200742118 A TW200742118 A TW 200742118A
Authority
TW
Taiwan
Prior art keywords
coating
index
light
refraction
metal
Prior art date
Application number
TW095115206A
Other languages
Chinese (zh)
Other versions
TWI303495B (en
Inventor
Steve D Lester
Original Assignee
Bridgelux Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bridgelux Inc filed Critical Bridgelux Inc
Priority to TW95115206A priority Critical patent/TWI303495B/en
Publication of TW200742118A publication Critical patent/TW200742118A/en
Application granted granted Critical
Publication of TWI303495B publication Critical patent/TWI303495B/en

Links

Abstract

A light emitting device based on an AlIuGaN materials system wherein a coating is used to improve the extraction of light from a device. A coating has a very low optical loss and an index of refraction greater than 2, preferably having an index of refraction close to or greater than the index of refraction of GaN. In a preferred embodiment the coating is made from Ta2O5, Nb2O5, TiO2, or SiC and has a thickness of between 0.01 and 10 microns. A surface of a coating material may be textured or shaped to increase its surface area and improve light extraction. A surface of the coating material can also be shaped to engineer the directionality of light escaping the layer. A coating can be applied directly to a surface or multiple surfaces of a light emitting device or can be applied onto a contact material. A coating may also serve as a passivation or protection layer for a device.
TW95115206A 2006-04-28 2006-04-28 Light emitter with metal-oxide coating TWI303495B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW95115206A TWI303495B (en) 2006-04-28 2006-04-28 Light emitter with metal-oxide coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW95115206A TWI303495B (en) 2006-04-28 2006-04-28 Light emitter with metal-oxide coating

Publications (2)

Publication Number Publication Date
TW200742118A true TW200742118A (en) 2007-11-01
TWI303495B TWI303495B (en) 2008-11-21

Family

ID=45070727

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95115206A TWI303495B (en) 2006-04-28 2006-04-28 Light emitter with metal-oxide coating

Country Status (1)

Country Link
TW (1) TWI303495B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI458125B (en) * 2009-09-18 2014-10-21 Hon Hai Prec Ind Co Ltd Nitride semiconductor light emitting component

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI458125B (en) * 2009-09-18 2014-10-21 Hon Hai Prec Ind Co Ltd Nitride semiconductor light emitting component

Also Published As

Publication number Publication date
TWI303495B (en) 2008-11-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees