WO2004068602A3 - Phosphor based light sources having a reflective polarizer - Google Patents

Phosphor based light sources having a reflective polarizer Download PDF

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Publication number
WO2004068602A3
WO2004068602A3 PCT/US2004/002205 US2004002205W WO2004068602A3 WO 2004068602 A3 WO2004068602 A3 WO 2004068602A3 US 2004002205 W US2004002205 W US 2004002205W WO 2004068602 A3 WO2004068602 A3 WO 2004068602A3
Authority
WO
WIPO (PCT)
Prior art keywords
reflective polarizer
light sources
based light
phosphor based
optically transparent
Prior art date
Application number
PCT/US2004/002205
Other languages
French (fr)
Other versions
WO2004068602A2 (en
Inventor
Andrew J Ouderkirk
Michael F Weber
Original Assignee
3M Innovative Properties Co
Andrew J Ouderkirk
Michael F Weber
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 3M Innovative Properties Co, Andrew J Ouderkirk, Michael F Weber filed Critical 3M Innovative Properties Co
Priority to EP04705687A priority Critical patent/EP1588433B1/en
Priority to JP2006503058A priority patent/JP5192148B2/en
Publication of WO2004068602A2 publication Critical patent/WO2004068602A2/en
Publication of WO2004068602A3 publication Critical patent/WO2004068602A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—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
    • H01L33/48—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 characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H01L33/505—Wavelength conversion elements characterised by the shape, e.g. plate or foil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—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
    • H01L33/44—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 characterised by the coatings, e.g. passivation layer or anti-reflective coating
    • H01L33/46—Reflective coating, e.g. dielectric Bragg reflector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—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
    • H01L33/48—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 characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • H01L33/60—Reflective elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481—Disposition
    • H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10—Details of semiconductor or other solid state devices to be connected
    • H01L2924/11—Device type
    • H01L2924/12—Passive devices, e.g. 2 terminal devices
    • H01L2924/1204—Optical Diode
    • H01L2924/12041—LED
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—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
    • H01L33/44—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 characterised by the coatings, e.g. passivation layer or anti-reflective coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Abstract

A LED package includes an LED that emits excitation light and an optically transparent body. A layer of phosphor material is positioned to receive the excitation light and is disposed on or in the optically transparent body. The phosphor material emits visible light when illuminated with the excitation light. A reflective polarizer layer is disposed on or in the optically transparent body and is positioned to receive the emitted visible light.
PCT/US2004/002205 2003-01-27 2004-01-27 Phosphor based light sources having a reflective polarizer WO2004068602A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04705687A EP1588433B1 (en) 2003-01-27 2004-01-27 Phosphor based light sources having a reflective polarizer
JP2006503058A JP5192148B2 (en) 2003-01-27 2004-01-27 Phosphorescent light source with reflective polarizer

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US44323203P 2003-01-27 2003-01-27
US44323503P 2003-01-27 2003-01-27
US44327403P 2003-01-27 2003-01-27
US60/443,235 2003-01-27
US60/443,232 2003-01-27
US60/443,274 2003-01-27

Publications (2)

Publication Number Publication Date
WO2004068602A2 WO2004068602A2 (en) 2004-08-12
WO2004068602A3 true WO2004068602A3 (en) 2004-11-18

Family

ID=32830867

Family Applications (3)

Application Number Title Priority Date Filing Date
PCT/US2004/002086 WO2004068597A2 (en) 2003-01-27 2004-01-27 Phosphor based light sources utilizing total internal reflection
PCT/US2004/002205 WO2004068602A2 (en) 2003-01-27 2004-01-27 Phosphor based light sources having a reflective polarizer
PCT/US2004/002161 WO2004068598A2 (en) 2003-01-27 2004-01-27 Phosphor converted light emitting devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2004/002086 WO2004068597A2 (en) 2003-01-27 2004-01-27 Phosphor based light sources utilizing total internal reflection

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2004/002161 WO2004068598A2 (en) 2003-01-27 2004-01-27 Phosphor converted light emitting devices

Country Status (6)

Country Link
US (2) US7157839B2 (en)
EP (3) EP1588432A2 (en)
JP (3) JP2006515962A (en)
KR (3) KR20050103208A (en)
TW (5) TW200428679A (en)
WO (3) WO2004068597A2 (en)

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