JP2012060180A - 発光装置用の発光セラミック - Google Patents
発光装置用の発光セラミック Download PDFInfo
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- JP2012060180A JP2012060180A JP2011279089A JP2011279089A JP2012060180A JP 2012060180 A JP2012060180 A JP 2012060180A JP 2011279089 A JP2011279089 A JP 2011279089A JP 2011279089 A JP2011279089 A JP 2011279089A JP 2012060180 A JP2012060180 A JP 2012060180A
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- ceramic layer
- light
- ceramic
- layer
- light emitting
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- 239000000919 ceramic Substances 0.000 title claims abstract description 122
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000004065 semiconductor Substances 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 26
- 239000002019 doping agent Substances 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 4
- 239000004038 photonic crystal Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 15
- 229910052594 sapphire Inorganic materials 0.000 description 15
- 239000010980 sapphire Substances 0.000 description 15
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 12
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 12
- 238000000605 extraction Methods 0.000 description 9
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- 239000000126 substance Substances 0.000 description 8
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- 239000000203 mixture Substances 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- -1 but not limited to Substances 0.000 description 3
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- 238000001228 spectrum Methods 0.000 description 3
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- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 238000001035 drying Methods 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229940093920 gynecological arsenic compound Drugs 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
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- 238000010899 nucleation Methods 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
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- 239000010936 titanium Substances 0.000 description 2
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
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- 239000010937 tungsten Substances 0.000 description 2
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- 229910004613 CdTe Chemical group 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 235000011449 Rosa Nutrition 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910004122 SrSi Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910007709 ZnTe Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229940058905 antimony compound for treatment of leishmaniasis and trypanosomiasis Drugs 0.000 description 1
- 150000001463 antimony compounds Chemical class 0.000 description 1
- 150000001495 arsenic compounds Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical group [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical class [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 1
- 229910019990 cerium-doped yttrium aluminum garnet Inorganic materials 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001652 electrophoretic deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001512 metal fluoride Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Chemical group 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 229910019655 synthetic inorganic crystalline material Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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Abstract
【解決手段】n−型領域とp−型領域の間に設置された発光層を有する半導体発光装置は、発光層によって放射される光の光路に設置されたセラミック層と一体化される。セラミック層は、蛍光体のような波長変換材料で構成され、あるいはそのような材料を有する。本発明の実施例による発光セラミック層は、従来の蛍光体層よりも頑丈で、温度に対する感度が低い。また、発光セラミック層は、散乱が少ないため、従来の蛍光体層を超える高い変換効率が得られる。
【選択図】図2
Description
Claims (16)
- n−型領域とp−型領域の間に設置された発光層、および成長基板を有する半導体発光装置、ならびに
前記発光層によって放射される光の光路に設置された、セラミック厚板の形態の第1のセラミック層、
を有する構造であって、
前記第1のセラミック層は、波長変換材料を有し、
前記第1のセラミック層および前記成長基板は、焼結された複合材を構成することを特徴とする構造。 - 前記第1のセラミック層は、蛍光体粒子の硬質凝集体を有することを特徴とする請求項1に記載の構造。
- 前記第1のセラミック層は、実質的に結合材を含まないことを特徴とする請求項2に記載の構造。
- さらに、前記成長基板と前記第1のセラミック層との間に界面を有し、該界面は、室温を超える温度および大気圧を超える圧力で、前記半導体発光装置と、前記第1のセラミック層とを相互に圧縮することにより形成されることを特徴とする請求項1に記載の構造。
- 前記第1のセラミック層の表面は、レンズを有することを特徴とする請求項1に記載の構造。
- 前記第1のセラミック層の表面は、ドームを有することを特徴とする請求項1に記載の構造。
- 前記第1のセラミック層の表面は、フレネルレンズを有することを特徴とする請求項1に記載の構造。
- 前記第1のセラミック層の表面は、フォトニック結晶構造を有することを特徴とする請求項1に記載の構造。
- 前記第1のセラミック層の表面は、構造化されていることを特徴とする請求項1に記載の構造。
- 前記第1のセラミック層は、ドーパントがドープされた蛍光体を有し、ドーパントの濃度は傾斜化されていることを特徴とする請求項1に記載の構造。
- 前記濃度は、前記第1のセラミック層の第1の部分での第1の濃度から、前記第1のセラミック層の第2の部分での第2の濃度まで傾斜化され、前記第1の濃度は、前記第2の濃度よりも高く、
前記第1の部分は、前記第2の部分よりも前記半導体発光装置に近いことを特徴とする請求項10に記載の構造。 - さらに、前記発光層によって放射される光の光路に設置された、第2のセラミック層を有することを特徴とする請求項1に記載の構造。
- 前記第1のセラミック層は、第1の波長変換材料を有し、
前記第2のセラミック層は、第2の波長変換材料を有することを特徴とする請求項12に記載の構造。 - 前記第1のセラミック層は、波長変換材料を有し、
前記第2のセラミック層は、波長変換材料を有さないことを特徴とする請求項12に記載の構造。 - 前記第1および第2のセラミック層のうち一つの表面の表面積は、前記半導体発光装置の、該装置から光が抽出される表面の表面積よりも大きいことを特徴とする請求項12に記載の構造。
- 前記波長変換材料は、(Lu1−x−y−a−bYxGdy)3(Al1−zGaz)5O12:CeaPrb、ただし0<x<1、0<y<1、0<z≦0.1、0<a≦0.2、0<b≦0.1;Lu3Al5O12:Ce3+;およびY3Al5O12:Ce3+;のうちの一つを有することを特徴とする請求項1に記載の構造。
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Application Number | Priority Date | Filing Date | Title |
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US10/861,172 US7361938B2 (en) | 2004-06-03 | 2004-06-03 | Luminescent ceramic for a light emitting device |
US10/861,172 | 2004-06-03 |
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JP2007514277A Division JP5009788B2 (ja) | 2004-06-03 | 2005-05-25 | 発光装置用の発光セラミック |
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JP2007514277A Active JP5009788B2 (ja) | 2004-06-03 | 2005-05-25 | 発光装置用の発光セラミック |
JP2005192799A Abandoned JP2006005367A (ja) | 2004-06-03 | 2005-06-03 | 発光デバイスのための発光セラミック |
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JP2005192799A Abandoned JP2006005367A (ja) | 2004-06-03 | 2005-06-03 | 発光デバイスのための発光セラミック |
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US (4) | US7361938B2 (ja) |
EP (2) | EP1756877A1 (ja) |
JP (3) | JP5009788B2 (ja) |
KR (1) | KR101228849B1 (ja) |
CN (2) | CN102208521A (ja) |
TW (1) | TW200614543A (ja) |
WO (1) | WO2005119797A1 (ja) |
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JP2013214449A (ja) * | 2012-04-03 | 2013-10-17 | Yuichi Suzuki | トロイダルレンズおよび照明装置 |
JP2018501659A (ja) * | 2015-01-06 | 2018-01-18 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 波長変換発光デバイス |
WO2022071679A1 (ko) * | 2020-09-29 | 2022-04-07 | 삼성전자주식회사 | 마이크로 led 및 이를 구비한 디스플레이 모듈 |
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EP2775541B1 (en) | 2020-04-08 |
KR20070042956A (ko) | 2007-04-24 |
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