JP2012507139A - 色混合のためのアレイレイアウト - Google Patents
色混合のためのアレイレイアウト Download PDFInfo
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- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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- H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
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- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
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- H01L2224/32245—Disposition the layer connector 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
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- 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
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- 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
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- 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
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- 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
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- Condensed Matter Physics & Semiconductors (AREA)
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- Manufacturing & Machinery (AREA)
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
[発明の分野]
本発明は、半導体照明、具体的には、色混合を促進するために配置される複数の離散発光体を使用する半導体照明に関する。
[関連技術の説明]
発光ダイオード(LEDまたはLEDs)は、電気エネルギーを光に変換する半導体装置であり、通常、反対にドープされた層の間に挟まれた半導体物質の活性層を1つ以上備えている。バイアスが上記ドープされた層を横切って加えられると、活性層内に空孔と電子が注入され、それら空孔と電子とが再結合して光を発生する。光はLEDの活性層及び全表面から放射される。
[発明の概要]
本発明は、複数の離散光源を有し、これら複数の離散光源の光が結合して所望の発光特性が実現されるランプ、発光体あるいは半導体照明部品を提供する。離散光源は一定のガイドラインに従って配置されて、異なる色の光を発する光源からの光の混合を促進する。本発明に係る半導体照明部品の一実施形態は、LEDチップのアレイを有する発光ダイオード(LED)部品を備える。アレイは第1及び第2のLEDチップのグループを備え、LEDチップの第1のグループは、第1のグループのLEDチップのうちの2つのLEDチップがアレイにおいて直接互いに隣り合わないように配置される。アレイはレンズに覆われる。
本発明は、異なる色の光を発する光源のグループを含む、複数の離散光源あるいは離散光源のアレイを有する半導体照明部品、ランプまたは照明器具を備える。本発明はLEDまたはLEDチップを使用するLED部品に関して説明されるが、本発明に係る照明部品は、その他の半導体光源を含む異なる光源を利用可能であることは理解される。
1.LEDチップの第1のグループのうちの2つが互いに直接隣接しないように配置される;
2.LEDチップの第1のグループのうちの可能な限り少ない数がアレイの縁にある;
3.第1グループからのLEDチップが、当該LEDチップに隣接する、LEDチップの他のグループからの少なくとも3つのLEDチップを有している。
Tb3-xRExO12:Ce(TAG); RE=Y,Gd,La,Lu;あるいは
Sr2-x-yBaxCaySiO4:Eu
いくつかの実施形態では、他のLEDチップが、青色光を吸収して黄色または緑色光を発するその他のリン光体によって被覆された青色放射LEDを含んでいてもよい。これらのLEDチップに使用され得るリン光体としては下記のものが含まれる。
(Sr,Ca,Ba)(Al,Ga)2S4:Eu2+
Ba2(Mg,Zn)Si2O7:Eu2+
Gd0.46Sr0.31Al1.23OxF1.38:Eu2+ 0.06
(Ba1-x-ySrxCay)SiO4:Eu
Ba2SiO4:Eu2+
赤色光を発するLEDチップ48は、活性領域から直接赤色光の放射を可能にするLED構造及び材料を備えていてもよい。代替として、他の実施形態では、赤色放射LEDチップ48は、LED光を吸収して赤色光を発するリン光体によって被覆されたLEDを備えていてもよい。この構造に適したリン光体としては以下のものが含まれ得る。
Lu2O3Eu3+
(Sr2-xLax)(Ce1-xEux)O4
Sr2Ce1-xEuxO4
Sr2-xEuxCeO4
SrTiO3:Pr3+,Ga3+
CaAlSiN3:Eu2+
Sr2Si5N8:Eu2+
上述したリン光体のそれぞれは、所望の放射スペクトルでの励起を示し、好適なピーク発光を提供し、効率的な光変換を行う。また、容認可能なストークスシフトを有する。しかしながら、所望の色の光を得るために、他のLED色と組み合わせて他の多くの発光体を使用してもよいことは理解される。
Claims (29)
- 発光ダイオード(LED)部品であって、
第1及び第2のLEDチップのグループを備える、LEDチップのアレイであって、LEDチップの前記第1のグループが、該第1のグループにおけるLEDチップの2つが前記アレイにおいて直接互いに隣り合わないように配置される、LEDチップのアレイと、
前記アレイの少なくとも一部を覆うレンズと
を備えるLED部品。 - 請求項1に記載のLED部品であって、
LEDチップの前記第1のグループは、赤色放射LEDチップを備えるLED部品。 - 請求項1に記載のLED部品であって、
LEDチップの前記第2のグループは、青色から黄色にシフトする(BSY)チップを備えるLED部品。 - 請求項1に記載のLED部品であって、
前記LEDチップは、サブマウント上にマウントされるLED部品。 - 請求項4に記載のLED部品であって、
前記サブマウントの上面に、ダイ取付パッドと、導電トレースと、接点パッドとをさらに備えるLED部品。 - 請求項5に記載のLED部品であって、
前記導電トレースは、LEDチップの前記第1及び第2のグループを、それぞれの直列ストリングにおいて接続するLED部品。 - 請求項5に記載のLED部品であって、
前記接点パッドは、前記サブマウントの縁に、かつ、前記サブマウントの一辺に沿って存在するLED部品。 - 請求項1に記載のLED部品であって、
第一に2つのESD保護装置を備え、
各ESD保護装置は、ESD破壊から前記ストリング上の前記LEDチップを保護するために前記ストリングのそれぞれにマウントされるLED部品。 - 請求項1に記載のLED部品であって、
前記LEDチップは、さらにLEDチップの第3のグループを備えるLED部品。 - 請求項9に記載のLED部品であって、
LEDチップの前記第2及び第3のグループは、異なるBSY色調のBSY LEDを備えるLED部品。 - 請求項9に記載のLED部品であって、
LEDチップの前記第1のグループは、600nmから640nmまでの範囲の波長の光を発する少なくとも1つのLEDチップを備えるLED部品。 - 請求項9に記載のLED部品であって、
LEDチップの前記第2のグループは、第1、第2、第3、第4、第5線分により囲われる1931CIE色度図上の領域内の1点を規定するx、y色座標の光を発する少なくとも1つのLEDチップを備え、前記第1線分は、第1ポイントと第2ポイントとを接続し、前記第2線分は、前記第2ポイントと第3ポイントとを接続し、前記第3線分は、前記第3ポイントと第4ポイントとを接続し、前記第4線分は、前記第4ポイントと第5ポイントとを接続し、前記第5線分は、前記第5ポイントと前記第1ポイントとを接続し、前記第1ポイントのx、y座標は、0.32、0.40であり、前記第2ポイントのx、y座標は、0.36、0.48であり、前記第3ポイントのx、y座標は、0.43、0.45であり、前記第4ポイントのx、y座標は、0.42、0.42であり、前記第5ポイントのx、y座標は、0.36、0.38であるLED部品。 - 請求項9に記載のLED部品であって、
LEDチップの第3のグループは、第1、第2、第3、第4、第5線分により囲われる1931CIE色度図上の領域内の1点を規定するx、y色座標の光を発する少なくとも1つのLEDチップを備え、前記第1線分は、第1ポイントと第2ポイントとを接続し、前記第2線分は、前記第2ポイントと第3ポイントとを接続し、前記第3線分は、前記第3ポイントと第4ポイントとを接続し、前記第4線分は、前記第4ポイントと第5ポイントとを接続し、前記第5線分は、前記第5ポイントと前記第1ポイントとを接続し、前記第1ポイントのx、y座標は、0.32、0.40であり、前記第2ポイントのx、y座標は、0.36、0.48であり、前記第3ポイントのx、y座標は、0.43、0.45であり、前記第4ポイントのx、y座標は、0.42、0.42であり、前記第5ポイントのx、y座標は、0.36、0.38であるLED部品。 - 発光ダイオード(LED)部品であって、
LEDチップの第1のグループと、1つ以上のさらなるLEDチップのグループとを備えるLEDチップのアレイであって、前記1つ以上のさらなるグループからの少なくとも3つのLEDチップが前記第1のグループにおける前記LEDチップの各々に隣接するように、LEDの前記第1のグループが配置される、LEDチップのアレイと、
前記アレイの少なくとも一部を覆うレンズと、
を備えるLED部品。 - 請求項14に記載のLED部品であって、
LEDチップの前記第1のグループは、赤色放射LEDチップを備えるLED部品。 - 請求項14に記載のLED部品であって、
LEDチップの前記1つ以上のさらなるグループは、青色から黄色にシフトする(BSY)LEDチップの第1及び第2のグループを備えるLED部品。 - 請求項14に記載のLED部品であって、
前記LEDチップは、サブマウント上にマウントされるLED部品。 - 請求項14に記載のLED部品であって、
LEDの前記第1のグループ及び前記1つ以上のさらなるグループのそれぞれは、それぞれの直列ストリングにおいて接続されているLED部品。 - 請求項18に記載のLED部品であって、
前記直列ストリングのそれぞれに、異なる電気信号を加えることができるように配置されたLED部品。 - 請求項14に記載のLED部品であって、
複数のESD保護装置であって、該複数のESD保護装置のそれぞれは、ESD破壊から前記ストリング上の前記LEDチップを保護するために前記ストリングのそれぞれにマウントされる、LED部品。 - 発光ダイオード(LED)部品であって、
サブマウント上にマウントされたLEDチップのアレイであって、LEDチップの前記アレイが、LEDチップの第1のグループと、LEDチップの1つ以上のさらなるグループとを備え、前記アレイが、LEDチップの前記第1のグループにおける前記LEDチップの50パーセント(50%)未満が前記アレイの周囲にあるように配置される、LEDチップのアレイを備えるLED部品。 - 請求項21に記載のLED部品であって、
サブマウントとレンズとをさらに備え、
前記LEDチップは、前記サブマウントにマウントされ、
前記レンズは、前記LEDチップの少なくとも一部を覆っているLED部品。 - 請求項21に記載のLED部品であって、
LEDチップの前記第1のグループは、赤色放射LEDチップを備えるLED部品。 - 請求項21に記載のLED部品であって、
LEDチップの前記1つ以上のさらなるグループは、青色から黄色にシフトする(BSY)LEDチップの第1及び第2のグループを備えるLED部品。 - 請求項21に記載のLED部品であって、
LEDの前記第1のグループ及び前記1つ以上のさらなるグループのそれぞれは、それぞれの直列ストリングにおいて接続されるLED部品。 - 発光ダイオード(LED)部品であって、
LEDチップの第1のグループと、LEDチップの1つ以上のさらなるグループとを備えるLEDチップのアレイであって、前記第1のグループからの2つのLEDチップが、前記アレイにおいて直接互いに隣り合わないように、かつ、前記1つ以上のさらなるグループからの少なくとも3つのLEDチップが、前記第1のグループにおける前記LEDチップのそれぞれと隣接するように、LEDチップの前記第1のグループが配置される、LEDチップのアレイを備えるLED部品。 - 請求項26に記載のLED部品であって、
前記LEDチップは、前記アレイの少なくとも一部を覆うレンズとともに、サブマウントにマウントされるLED部品。 - 発光ダイオード(LED)部品であって、
LEDチップの第1のグループと、LEDチップの1つ以上のさらなるグループとを備えるLEDチップのアレイであって、
前記第1のグループからの2つのLEDチップが、前記アレイにおいて互いに直接隣り合わず、
LEDの前記第1のグループにおける前記LEDチップの50パーセント(50%)未満が前記アレイの周囲にあり、かつ、
前記1つ以上のさらなるグループからの少なくとも3つのLEDチップが前記第1のグループにおける前記LEDチップのそれぞれと隣接する
ように配置されたLEDチップのアレイを備えるLED部品。 - 請求項28に記載のLED部品であって、
前記LEDチップは、前記アレイを覆うレンズとともに、サブマウントにマウントされるLED部品。
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US12/288,957 US9425172B2 (en) | 2008-10-24 | 2008-10-24 | Light emitter array |
US12/288,957 | 2008-10-24 | ||
PCT/US2009/005738 WO2010047798A1 (en) | 2008-10-24 | 2009-10-21 | Array layout for color mixing |
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CN102203495B (zh) | 2017-08-25 |
CN102203495A (zh) | 2011-09-28 |
TW201029146A (en) | 2010-08-01 |
WO2010047798A1 (en) | 2010-04-29 |
JP5845088B2 (ja) | 2016-01-20 |
US9425172B2 (en) | 2016-08-23 |
KR20110095868A (ko) | 2011-08-25 |
EP2350520B1 (en) | 2022-02-23 |
TW201025557A (en) | 2010-07-01 |
US20100103660A1 (en) | 2010-04-29 |
US20100127283A1 (en) | 2010-05-27 |
EP2350520A1 (en) | 2011-08-03 |
US9484329B2 (en) | 2016-11-01 |
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