JP2007324608A - 波長変換部材の変更による色管理 - Google Patents
波長変換部材の変更による色管理 Download PDFInfo
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- JP2007324608A JP2007324608A JP2007169747A JP2007169747A JP2007324608A JP 2007324608 A JP2007324608 A JP 2007324608A JP 2007169747 A JP2007169747 A JP 2007169747A JP 2007169747 A JP2007169747 A JP 2007169747A JP 2007324608 A JP2007324608 A JP 2007324608A
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- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
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- 239000004332 silver Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
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- 239000011029 spinel Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
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- 239000013008 thixotropic agent Substances 0.000 description 1
- BYMUNNMMXKDFEZ-UHFFFAOYSA-K trifluorolanthanum Chemical compound F[La](F)F BYMUNNMMXKDFEZ-UHFFFAOYSA-K 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
- H01L33/508—Wavelength conversion elements having a non-uniform spatial arrangement or non-uniform concentration, e.g. patterned wavelength conversion layer, wavelength conversion layer with a concentration gradient of the wavelength conversion material
-
- 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
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73253—Bump and layer connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers 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 bodies
- H01L33/20—Semiconductor devices having potential barriers 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 bodies with a particular shape, e.g. curved or truncated substrate
- H01L33/22—Roughened surfaces, e.g. at the interface between epitaxial layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
- Led Devices (AREA)
- Lasers (AREA)
- Drying Of Semiconductors (AREA)
Abstract
【解決手段】発光デバイスが、該発光デバイスの上に波長変換材料の層を堆積させること、当該デバイスを試験して生成された波長スペクトルを測定すること、波長変換部材を補正して所要の波長スペクトルを生成すること、によって生成される。波長変換部材は、波長変換材料の量を増減させることによって補正することができる。一実施形態では、波長変換部材内の波長変換材料の量は、例えばレーザアブレーション又はエッチングによって減少され、所望された波長スペクトルを生成する。
【選択図】なし
Description
本出願は、Michael D.Camras他により2004年11月12日に出願された名称「Bonding an Optical Element to a Light Emitting Device(発光デバイスへの光学素子の接合)」の米国特許出願シリアル番号第10/987,241号の一部継続出願であり、当該出願に対して優先権を主張し、上記出願は引用により本明細書に組み込まれる。
本発明は、一般的には発光デバイスに関し、より特定的には、波長変換部材を用いる発光デバイスの色の一貫性の制御に関する。
104 発光ダイオード(LED)ダイ
106 サブマウント
108 第1の半導体層
110 第2の半導体層
112 活性領域
114、116 コンタクト
Claims (10)
- 発光素子を準備する段階と、
該発光素子の上に波長変換材料の層を堆積させる段階と、
前記発光素子と前記波長変換材料とを組み合わせることによって放出される光の波長スペクトルを測定する段階と、
アブレーションを用いて前記発光素子の上に堆積された前記波長変換材料の量を低減することによって、前記発光素子の上の前記波長変換材料の量を変更する段階と、
を含むことを特徴とする方法。 - 前記発光素子上に堆積された前記波長変換材料の量を低減することが、前記発光素子のほぼ全体にわたって前記波長変換材料の厚みを低減させること、及び、前記発光素子の局所的領域における前記波長変換材料の厚みを低減させること、のうちの一方を含む請求項1に記載の方法。
- 前記波長変換材料の量を変更する段階が、一連のストライプ、一連の孔、デザイン、シンボル及びエンブレムのうちの1つ又はそれ以上のパターンで前記波長変換材料の層をアブレートすることによって行われる、請求項2に記載の方法。
- 前記波長変換材料の層をアブレートすることが、前記波長変換材料の層の上の多重パスを用いて行われる、請求項3に記載の方法。
- 前記発光素子と前記波長変換材料とを組み合わせることによって放出される光の波長スペクトルを測定する段階が、前記光の波長スペクトルを色空間又は空間マップ内に位置付けること、及び、前記色空間又は空間マップ内での前記光の波長スペクトルの位置に基づいて前記発光素子の上の波長変換材料の量を変更すること、を更に含む、請求項1に記載の方法。
- 前記発光素子の上に前記波長変換材料の層を堆積させる段階が、前記発光素子の上に又は前記発光素子の上にある光学素子の上に前記波長変換材料を堆積させることを含む、請求項1に記載の方法。
- 前記波長変換材料が発光変換セラミックである請求項1に記載の方法。
- 光を放出する活性領域を含む半導体層のスタックを備える半導体発光素子と、
該半導体発光素子に結合された補正波長変換部材と、
を具備し、
前記補正波長変換部材が、前記半導体発光素子に当初に結合されていた波長変換材料の量よりも少ない前記波長変換材料の量を有するようにアブレートされた波長変換部材であり、
前記補正波長変換部材の前記波長変換材料の量が、所望された波長スペクトルを生成するのに十分である、
ことを特徴とするデバイス。 - 前記補正波長変換部材が、一連のストライプ、一連の孔、デザイン、シンボル及びエンブレムのうちの少なくとも1つのパターンでアブレートされる、請求項8に記載のデバイス。
- 前記補正波長変換部材が、蛍光体層、及び、前記半導体発光素子の上に又は前記半導体発光素子の上の光学素子の上に堆積された光変換セラミック、のうちの少なくとも1つを含む、請求項8に記載のデバイス。
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US20120238041A1 (en) | 2012-09-20 |
US7462502B2 (en) | 2008-12-09 |
US20090072263A1 (en) | 2009-03-19 |
JP5495479B2 (ja) | 2014-05-21 |
US8202742B2 (en) | 2012-06-19 |
CN101553936B (zh) | 2011-03-09 |
TWI431800B (zh) | 2014-03-21 |
US20110132521A1 (en) | 2011-06-09 |
EP2030255A2 (en) | 2009-03-04 |
CN101553936A (zh) | 2009-10-07 |
US7902566B2 (en) | 2011-03-08 |
US8486725B2 (en) | 2013-07-16 |
WO2007138554A2 (en) | 2007-12-06 |
EP2030255B1 (en) | 2017-03-01 |
WO2007138554A3 (en) | 2008-02-14 |
US20060258028A1 (en) | 2006-11-16 |
TW200812117A (en) | 2008-03-01 |
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