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1. (WO2010074987) LIGHT GENERATING DEVICE HAVING DOUBLE-SIDED WAVELENGTH CONVERTER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/074987 International Application No.: PCT/US2009/067489
Publication Date: 01.07.2010 International Filing Date: 10.12.2009
IPC:
H01L 33/50 (2010.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33
Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
48
characterised by the semiconductor body packages
50
Wavelength conversion elements
Applicants:
3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, MN 55133-3427, US (AllExceptUS)
LEATHERDALE, Catherine A. [CA/US]; US (UsOnly)
OUDERKIRK, Andrew J. [US/US]; SG (UsOnly)
KELLEY, Tommie W. [US/US]; US (UsOnly)
Inventors:
LEATHERDALE, Catherine A.; US
OUDERKIRK, Andrew J.; SG
KELLEY, Tommie W.; US
Agent:
MOSHREFZADEH, Robert S.; 3M Center Office of Intellectual Property Counsel Post Office Box 33427 Saint Paul, MN 55133-3427, US
Priority Data:
61/140,69724.12.2008US
Title (EN) LIGHT GENERATING DEVICE HAVING DOUBLE-SIDED WAVELENGTH CONVERTER
(FR) DISPOSITIF ÉLECTROLUMINESCENT ÉQUIPÉ D'UN CONVERTISSEUR DE LONGUEUR D'ONDE À DOUBLE FACE
Abstract:
(EN) A light emitting device (200) includes a wavelength converter (204) attached to a light emitting diode (LED 202) The wavelength converter may have etched patterns on both the first and second sides. In some embodiments the first and second sides of the converter each include a respective structure having a different width at its top than at its base. The wavelength converter may include a first photoluminescent element (208) substantially overlying a first region (218) of the LED without overlying a second region (224) of the LED, while a second photoluminescent element (210) substantially overlies the second region without overlying the first region. In some embodiments a passivation layer is disposed over the etched pattern of the first side. A window layer may be disposed between the first and second photoluminescent elements, with non-epitaxial material disposed on first and second sides of one region of the window layer.
(FR) Un dispositif électroluminescent comprend un convertisseur de longueur d'onde fixé à une diode électroluminescente (DEL). Le convertisseur de longueur d'onde peut présenter des motifs gravés sur les premier et second côtés. Dans certains modes de réalisation, les premier et second côtés du convertisseur comprennent chacun une structure respective ayant une largeur différente au niveau de sa partie supérieure et de sa base. Le convertisseur de longueur d'onde peut comprendre un premier élément photoluminescent recouvrant sensiblement une première région de la DEL sans recouvrir une seconde région de la DEL, tandis qu'un second élément photoluminescent recouvre sensiblement la seconde région sans recouvrir la première. Dans certains modes de réalisation, une couche de passivation est disposée sur le motif gravé du premier côté. Une couche formant fenêtre peut être disposée entre les premier et second éléments photoluminescents, un matériau non épitaxial étant disposé sur les premier et second côtés d'une région de la couche formant fenêtre.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2380216JP2012514329US20110260601CN102318089KR1020110105842