JP5150218B2 - ZnO系半導体発光素子の製造方法 - Google Patents
ZnO系半導体発光素子の製造方法 Download PDFInfo
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- JP5150218B2 JP5150218B2 JP2007291591A JP2007291591A JP5150218B2 JP 5150218 B2 JP5150218 B2 JP 5150218B2 JP 2007291591 A JP2007291591 A JP 2007291591A JP 2007291591 A JP2007291591 A JP 2007291591A JP 5150218 B2 JP5150218 B2 JP 5150218B2
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- 239000004065 semiconductor Substances 0.000 title claims description 130
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000000758 substrate Substances 0.000 claims description 64
- 238000005530 etching Methods 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 29
- 239000000243 solution Substances 0.000 claims description 20
- 230000002378 acidificating effect Effects 0.000 claims description 16
- 239000007864 aqueous solution Substances 0.000 claims description 15
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 230000036961 partial effect Effects 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 239000007853 buffer solution Substances 0.000 claims description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 256
- 239000011787 zinc oxide Substances 0.000 description 127
- 239000010410 layer Substances 0.000 description 114
- 239000010931 gold Substances 0.000 description 25
- 239000011347 resin Substances 0.000 description 15
- 229920005989 resin Polymers 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 14
- 238000000605 extraction Methods 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 239000013078 crystal Substances 0.000 description 10
- 238000007740 vapor deposition Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 7
- 239000000872 buffer Substances 0.000 description 7
- 239000010408 film Substances 0.000 description 7
- 229910052697 platinum Inorganic materials 0.000 description 7
- 238000001039 wet etching Methods 0.000 description 7
- 238000010894 electron beam technology Methods 0.000 description 6
- 230000005496 eutectics Effects 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 229910015363 Au—Sn Inorganic materials 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 238000000206 photolithography Methods 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 238000005253 cladding Methods 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 125000004430 oxygen atom Chemical group O* 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004151 rapid thermal annealing Methods 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000001741 metal-organic molecular beam epitaxy Methods 0.000 description 2
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical group [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000000927 vapour-phase epitaxy Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229940068107 nitrogen 100 % Drugs 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/01—Manufacture or treatment
- H10H20/011—Manufacture or treatment of bodies, e.g. forming semiconductor layers
- H10H20/012—Manufacture or treatment of bodies, e.g. forming semiconductor layers having light-emitting regions comprising only Group II-IV materials
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- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- 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
- H01L2224/321—Disposition
- H01L2224/32151—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
- H01L2224/32221—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
- 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
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45144—Gold (Au) as principal constituent
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- 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
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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
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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
- 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
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- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
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- H10H20/82—Roughened surfaces, e.g. at the interface between epitaxial layers
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
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Description
2 緩衝層
3 n型ZnO系半導体層
4 発光層
5 p型ZnO系半導体層
6 半導体動作層
10 −C面
11、12 +C面
20 レジスト膜
21 フォトマスク
30 凹部
40 p側電極
41 p側電極パッド
42 n側電極
43 n側電極接続部材
60 フレーム
61 銀ペースト
62 発光素子
63 蛍光体分散樹脂
64 金ワイヤ
65 樹脂モールド
66 ピン
Claims (8)
- (a)ウルツァイト構造を持ち、一方の面が+C面でその反対側の面が−C面であるZnO系半導体基板と、該ZnO系半導体基板の+C面の上方にエピタキシャル成長され、第1の導電型を有する第1のZnO系半導体層と、該第1の半導体層の上方にエピタキシャル成長され、該第1の導電型と反対の第2の導電型を有する第2のZnO系半導体層とを含むZnO系半導体ウエハを準備する工程と、
(b)前記ZnO系半導体ウエハを酸性エッチング液でウエットエッチングすることにより、前記ZnO系半導体基板の−C面をエッチングする工程と
を有し、
前記工程(b)は、前記ZnO系半導体ウエハの+C面に、前記酸性エッチング液から保護する層を形成せずにエッチングを行う、ZnO系半導体発光素子の製造方法。 - 前記工程(b)は、前記ZnO系半導体基板の−C面に凹凸を形成し、
前記ZnO系半導体基板が導電性であり、
さらに、
(c)前記工程(b)で凹凸が形成された−C面上に第1の電極を形成する工程と、
(d)前記第2の半導体層の上方に第2の電極を形成する工程と
を有する請求項1に記載のZnO系半導体発光素子の製造方法。 - 前記工程(c)は、前記−C面上に、前記ZnO系半導体基板側から入射した光を反射させる前記第1の電極を形成する工程であり、前記工程(d)は、前記第2の半導体層の上方に、前記第2の半導体層側から入射した光を透過させる前記第2の電極を形成する工程である請求項2に記載のZnO系半導体発光素子の製造方法。
- 前記工程(c)は、前記−C面上の一部の領域に、前記第1の電極を形成する工程であり、前記工程(d)は、前記第2の半導体層の上方に、前記第2の半導体層側から入射した光を反射させる前記第2の電極を形成する工程である請求項2に記載のZnO系半導体発光素子の製造方法。
- さらに、(e)支持電極部材に、前記第2の半導体層を、前記第2の電極を介して接着する工程を有する請求項4に記載のZnO系半導体発光素子の製造方法。
- 前記工程(b)は、前記ZnO系半導体基板の−C面の全面をエッチングして、該ZnO系半導体基板を薄くする請求項1に記載のZnO系半導体発光素子の製造方法。
- 前記工程(b)は、前記酸性エッチング液として、硝酸水溶液、硫酸水溶液、塩酸水溶液、リン酸水溶液、酢酸水溶液、これらの混酸水溶液、及び、酸性の緩衝溶液から選択されたものを用いる請求項1〜6のいずれか1項に記載のZnO系半導体発光素子の製造方法。
- (f)ウルツァイト構造を持ち、一方の面が+C面でその反対側の面が−C面であるZnO系半導体基板を準備する工程と、
(g)前記ZnO系半導体基板を酸性エッチング液でウエットエッチングすることにより、前記−C面をエッチングする工程と
を有し、
前記工程(g)は、前記ZnO系半導体基板の+C面に、前記酸性エッチング液から保護する層を形成せずにエッチングを行う、ZnO系半導体発光素子の製造方法。
Priority Applications (2)
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JP2007291591A JP5150218B2 (ja) | 2007-11-09 | 2007-11-09 | ZnO系半導体発光素子の製造方法 |
US12/265,105 US7745345B2 (en) | 2007-11-09 | 2008-11-05 | ZnO based semiconductor device manufacture method |
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JP2007291591A JP5150218B2 (ja) | 2007-11-09 | 2007-11-09 | ZnO系半導体発光素子の製造方法 |
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JP2009117744A JP2009117744A (ja) | 2009-05-28 |
JP5150218B2 true JP5150218B2 (ja) | 2013-02-20 |
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JP2007291591A Expired - Fee Related JP5150218B2 (ja) | 2007-11-09 | 2007-11-09 | ZnO系半導体発光素子の製造方法 |
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JP (1) | JP5150218B2 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5004885B2 (ja) * | 2008-07-15 | 2012-08-22 | スタンレー電気株式会社 | 半導体構造の加工方法 |
JP5493119B2 (ja) * | 2009-03-11 | 2014-05-14 | スタンレー電気株式会社 | 酸化亜鉛系半導体素子の製造方法 |
US20100270592A1 (en) * | 2009-04-27 | 2010-10-28 | University Of Seoul Industry Cooperation Foundation | Semiconductor device |
US8253145B2 (en) * | 2009-04-29 | 2012-08-28 | University Of Seoul Industry Cooperation Foundation | Semiconductor device having strong excitonic binding |
US8263427B2 (en) * | 2009-06-02 | 2012-09-11 | Intermolecular, Inc. | Combinatorial screening of transparent conductive oxide materials for solar applications |
JP2011054866A (ja) * | 2009-09-04 | 2011-03-17 | Stanley Electric Co Ltd | ZnO系半導体発光素子の製造方法 |
JP5342970B2 (ja) * | 2009-09-15 | 2013-11-13 | スタンレー電気株式会社 | 酸化亜鉛系半導体発光素子の製造方法及び酸化亜鉛系半導体発光素子 |
JP5679869B2 (ja) * | 2011-03-07 | 2015-03-04 | スタンレー電気株式会社 | 光半導体素子の製造方法 |
JP5862354B2 (ja) * | 2011-04-15 | 2016-02-16 | 三菱化学株式会社 | 窒化物系発光ダイオード素子とその製造方法 |
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