JP2011057764A - 蛍光体及びそれを用いた発光装置並びに蛍光体の製造方法 - Google Patents
蛍光体及びそれを用いた発光装置並びに蛍光体の製造方法 Download PDFInfo
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- JP2011057764A JP2011057764A JP2009206346A JP2009206346A JP2011057764A JP 2011057764 A JP2011057764 A JP 2011057764A JP 2009206346 A JP2009206346 A JP 2009206346A JP 2009206346 A JP2009206346 A JP 2009206346A JP 2011057764 A JP2011057764 A JP 2011057764A
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 173
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 5
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 5
- 229910052792 caesium Inorganic materials 0.000 claims abstract description 4
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 4
- 229910052701 rubidium Inorganic materials 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 33
- 230000005284 excitation Effects 0.000 claims description 26
- 239000000460 chlorine Substances 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 16
- 229910052791 calcium Inorganic materials 0.000 claims description 15
- 229910052712 strontium Inorganic materials 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 11
- 238000000295 emission spectrum Methods 0.000 claims description 10
- 229910052788 barium Inorganic materials 0.000 claims description 9
- 229910052801 chlorine Inorganic materials 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 7
- 101100496858 Mus musculus Colec12 gene Proteins 0.000 claims description 6
- 239000012298 atmosphere Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 6
- 230000004907 flux Effects 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 4
- 229910001617 alkaline earth metal chloride Inorganic materials 0.000 claims description 4
- 229910052586 apatite Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 150000004767 nitrides Chemical class 0.000 claims description 4
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 239000011575 calcium Substances 0.000 description 22
- -1 halogen salts Chemical class 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 229910052736 halogen Inorganic materials 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 229910052693 Europium Inorganic materials 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 239000012190 activator Substances 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229910052747 lanthanoid Inorganic materials 0.000 description 4
- 150000002602 lanthanoids Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910017639 MgSi Inorganic materials 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 150000001342 alkaline earth metals Chemical class 0.000 description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical group [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 3
- 229910001940 europium oxide Inorganic materials 0.000 description 3
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 238000009877 rendering Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- RLMMPAFGVXFLEB-UHFFFAOYSA-N O[Si](O)(O)Cl.P Chemical compound O[Si](O)(O)Cl.P RLMMPAFGVXFLEB-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 150000004645 aluminates Chemical class 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000921 elemental analysis Methods 0.000 description 2
- 238000000695 excitation spectrum Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 102100032047 Alsin Human genes 0.000 description 1
- 101710187109 Alsin Proteins 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910005793 GeO 2 Inorganic materials 0.000 description 1
- PHXNQAYVSHPINV-UHFFFAOYSA-N P.OB(O)O Chemical compound P.OB(O)O PHXNQAYVSHPINV-UHFFFAOYSA-N 0.000 description 1
- 240000007320 Pinus strobus Species 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 244000154870 Viola adunca Species 0.000 description 1
- 235000005811 Viola adunca Nutrition 0.000 description 1
- 235000013487 Viola odorata Nutrition 0.000 description 1
- 235000002254 Viola papilionacea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 1
- 229910052915 alkaline earth metal silicate Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- PSBUJOCDKOWAGJ-UHFFFAOYSA-N azanylidyneeuropium Chemical compound [Eu]#N PSBUJOCDKOWAGJ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006690 co-activation Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000018 strontium carbonate Inorganic materials 0.000 description 1
- 229910001631 strontium chloride Inorganic materials 0.000 description 1
- AHBGXTDRMVNFER-UHFFFAOYSA-L strontium dichloride Chemical compound [Cl-].[Cl-].[Sr+2] AHBGXTDRMVNFER-UHFFFAOYSA-L 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 239000012856 weighed raw material Substances 0.000 description 1
Classifications
-
- 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
Abstract
【課題手段】
実質的な組成が以下の一般式で表され、かつLi,Na,K,Rb,Csの群から選ばれる少なくとも一種類以上の元素が含有されている。
Cax1Srx2EuySi6OaClb
(上式において、
2≦x1≦3
3≦x2≦4
5.0≦x1+x2≦7.0、
0.0<y≦1.5、
a=(x1+x2)+y+12−(1/2)b、
1.0≦b≦2.0である。)
【選択図】図1
Description
(上式において、
2≦x1≦3
3≦x2≦4
5.0≦x1+x2≦7.0、
0.0<y≦1.5、
a=(x1+x2)+y+12−(1/2)b、
1.0≦b≦2.0である。)
(上式において、
2≦x1≦3
3≦x2≦4
5.0≦x1+x2≦7.0、
0.0<y≦1.5、
a=(x1+x2)+y+12−(1/2)b、
1.0≦b≦2.0である。)
(実施の形態1)
(粒径)
(製造方法)
(焼成)
(粉砕等)
(賦活剤)
炭酸カルシウム(CaCO3)・・・・8.39g
炭酸ストロンチウム(SrCO3)・・・・41.85g
塩化カルシウム(CaCl2)・・・・15.45g
塩化ストロンチウム(SrCl2)・・・・14.00g
酸化ユーロピウム(Eu2O3)・・・・7.77g
酸化ケイ素(SiO2)・・・・26.53g
塩化リチウム(LiCl)・・・・0.04g
(温度特性)
発光素子は、近紫外線から可視光の短波長領域の光を発するものを使用することができる。好ましくは290nm〜410nmに発光ピーク波長を有するものとする。これにより、本発明に係る蛍光体を効率よく励起し、また可視光を有効活用することができるからである。また、励起光源に発光素子を利用することによって、高効率で入力に対する出力のリニアリティが高く、機械的衝撃にも強い安定した発光装置を得ることができる。
(複数の蛍光体の組み合わせ)
(実施例9)
101…発光素子
102…蛍光体
103…封止樹脂
104…導電ワイヤ
110…パッケージ
111…リード電極
112…反射部材
Claims (8)
- 実質的な組成が以下の一般式で表され、かつLi,Na,K,Rb,Csの群から選ばれる少なくとも一種類以上の元素が含有されていることを特徴とする蛍光体。
Cax1Srx2EuySi6OaClb
(上式において、
2≦x1≦3
3≦x2≦4
5.0≦x1+x2≦7.0、
0.0<y≦1.5、
a=(x1+x2)+y+12−(1/2)b、
1.0≦b≦2.0である。) - 前記Ca、Srの一部は、Mg、Ba、Zn、Mnよりなる群から選ばれる一種以上の元素により置換されていることを特徴とする請求項1に記載の蛍光体。
- 請求項1又は2に記載の蛍光体であって、
ピーク波長が350nm〜420nmの波長域の光に励起されて、
発光スペクトルのピーク波長が540〜600nmの波長域にあることを特徴とする蛍光体。 - 近紫外領域から可視光の短波長側の光を発する励起光源と、
請求項1から3のいずれか一に記載の第一蛍光体と、
前記励起光源からの光の少なくとも一部を吸収し、420nm〜480nmにピーク波長を有する蛍光を発する1種類以上の第二蛍光体と、
前記第一、第二蛍光体を含有する透光性樹脂と、
を用いることを特徴とする発光装置。 - 請求項4に記載の発光装置であって、
前記第二蛍光体が、前記第一蛍光体よりも中心粒径が大きく、
前記第二蛍光体は前記透光性樹脂において前記励起光源の近傍に分布して色変換層を形成し、前記第一蛍光体は前記透光性樹脂において前記色変換層の外側に分布してなることを特徴とする発光装置。 - 請求項4又は5に記載の発光装置であって、
前記第二蛍光体として、アパタイト又はBAM系蛍光体、シリケート系蛍光体を含んでなることを特徴とする発光装置。 - 蛍光体の製造方法であって、
以下の一般式で表される組成に含有される元素を含む単体、酸化物、窒化物又は炭酸塩を調製すると共に塩素を含有させるよう、粉砕及び/又は混合する工程と、
得られた原料を坩堝に詰め、還元雰囲気中にて焼成する工程と、
焼成された原料を固液分離して乾燥し、粉砕、分散、濾過して目的の蛍光体粉末を得る工程と、
を含み、
前記焼成の際にフラックスとしてアルカリ土類金属塩化物を添加することを特徴とする蛍光体の製造方法。
Cax1Srx2EuySi6OaClb
(上式において、
2≦x1≦3
3≦x2≦4
5.0≦x1+x2≦7.0、
0.0<y≦1.5、
a=(x1+x2)+y+12−(1/2)b、
1.0≦b≦2.0である。) - 請求項7に記載の蛍光体の製造方法であって、
前記アルカリ土類金属塩化物がSrCl2であることを特徴とする蛍光体の製造方法。
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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