JP2014053606A - 発光素子 - Google Patents
発光素子 Download PDFInfo
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- JP2014053606A JP2014053606A JP2013180900A JP2013180900A JP2014053606A JP 2014053606 A JP2014053606 A JP 2014053606A JP 2013180900 A JP2013180900 A JP 2013180900A JP 2013180900 A JP2013180900 A JP 2013180900A JP 2014053606 A JP2014053606 A JP 2014053606A
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- 239000004065 semiconductor Substances 0.000 claims abstract description 241
- 230000004888 barrier function Effects 0.000 claims description 9
- 238000009792 diffusion process Methods 0.000 claims description 8
- 150000004767 nitrides Chemical class 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 description 118
- 239000002184 metal Substances 0.000 description 118
- 239000000463 material Substances 0.000 description 42
- 229910052759 nickel Inorganic materials 0.000 description 42
- 229910052719 titanium Inorganic materials 0.000 description 42
- 229910052802 copper Inorganic materials 0.000 description 37
- 229910052721 tungsten Inorganic materials 0.000 description 35
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 34
- 229910052804 chromium Inorganic materials 0.000 description 34
- 229910052782 aluminium Inorganic materials 0.000 description 30
- 229910052720 vanadium Inorganic materials 0.000 description 30
- 229910052725 zinc Inorganic materials 0.000 description 30
- 239000011701 zinc Substances 0.000 description 30
- 229910052737 gold Inorganic materials 0.000 description 23
- 239000000758 substrate Substances 0.000 description 23
- 229910052750 molybdenum Inorganic materials 0.000 description 22
- 229910052697 platinum Inorganic materials 0.000 description 20
- 239000011787 zinc oxide Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 18
- 230000003287 optical effect Effects 0.000 description 15
- 229960001296 zinc oxide Drugs 0.000 description 13
- 239000000956 alloy Substances 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 12
- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 description 12
- 239000002019 doping agent Substances 0.000 description 12
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 9
- 229910052733 gallium Inorganic materials 0.000 description 8
- 229910052738 indium Inorganic materials 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- HRHKULZDDYWVBE-UHFFFAOYSA-N indium;oxozinc;tin Chemical compound [In].[Sn].[Zn]=O HRHKULZDDYWVBE-UHFFFAOYSA-N 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 6
- 229910002704 AlGaN Inorganic materials 0.000 description 6
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 6
- 238000005530 etching Methods 0.000 description 6
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 6
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 239000004417 polycarbonate Substances 0.000 description 6
- 229920000515 polycarbonate Polymers 0.000 description 6
- 229910052718 tin Inorganic materials 0.000 description 6
- 229910001887 tin oxide Inorganic materials 0.000 description 6
- 229910017083 AlN Inorganic materials 0.000 description 5
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 5
- -1 Indium-Aluminum-Zinc Chemical compound 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 229910010413 TiO 2 Inorganic materials 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 229910052763 palladium Inorganic materials 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 5
- DZLPZFLXRVRDAE-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[Al+3].[Zn++].[In+3] Chemical compound [O--].[O--].[O--].[O--].[Al+3].[Zn++].[In+3] DZLPZFLXRVRDAE-UHFFFAOYSA-N 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 229910052732 germanium Inorganic materials 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 229910017944 Ag—Cu Inorganic materials 0.000 description 3
- 229910002601 GaN Inorganic materials 0.000 description 3
- 229910002668 Pd-Cu Inorganic materials 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 229910019897 RuOx Inorganic materials 0.000 description 3
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- YZZNJYQZJKSEER-UHFFFAOYSA-N gallium tin Chemical compound [Ga].[Sn] YZZNJYQZJKSEER-UHFFFAOYSA-N 0.000 description 3
- 229910052735 hafnium Inorganic materials 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 229910052741 iridium Inorganic materials 0.000 description 3
- VRIVJOXICYMTAG-IYEMJOQQSA-L iron(ii) gluconate Chemical compound [Fe+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O VRIVJOXICYMTAG-IYEMJOQQSA-L 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910003465 moissanite Inorganic materials 0.000 description 3
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- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 description 2
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- 239000004743 Polypropylene Substances 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
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- 238000009616 inductively coupled plasma Methods 0.000 description 2
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- 229910052749 magnesium Inorganic materials 0.000 description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N nickel(II) oxide Inorganic materials [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
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- 239000012780 transparent material Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- AUCDRFABNLOFRE-UHFFFAOYSA-N alumane;indium Chemical compound [AlH3].[In] AUCDRFABNLOFRE-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 239000002210 silicon-based material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
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Abstract
【解決手段】伝導性支持部材70、第1導電型の第1半導体層11、第1半導体層の下に第1活性層12、及び第1活性層の下に第2導電型の第2半導体層13を含み、伝導性支持部材の上に配置された第1発光構造物10、第1発光構造物の下部周りと第2発光構造物20の下部周りに配置されたチャンネル層30、第1半導体層に電気的に連結された第1電極80、第2半導体層に電気的に連結された第2電極83、第3半導体層21に電気的に連結された第3電極85、第4半導体層に電気的に連結された第4電極87、第1電極と伝導性支持部材に電気的に連結された第1連結部90、第2電極と第3電極に電気的に連結された第2連結部95、及び第4電極と電気的に連結され、一端がチャンネル層の上に配置された第3連結部97を含む。
【選択図】図1
Description
11 第1半導体層
12 第1活性層
13 第2半導体層
15 第1オーミック接触層
17 第1反射層
20 第2発光構造物
21 第3半導体層
22 第2活性層
23 第4半導体層
25 第2オーミック接触層
27 第2反射層
30 チャンネル層
35 第1金属層
40 絶縁層
45 第2金属層
50 第3金属層
60 ボンディング層
70 伝導性支持部材
80 第1電極
83 第2電極
85 第3電極
87 第4電極
90 第1連結部
95 第2連結部
97 第3連結部
Claims (21)
- 伝導性支持部材と、
第1導電型の第1半導体層、前記第1半導体層の下に第1活性層、及び前記第1活性層の下に第2導電型の第2半導体層を含み、前記伝導性支持部材の上に配置された第1発光構造物と、
第1導電型の第3半導体層、前記第3半導体層の下に第2活性層、及び前記第2活性層の下に第2導電型の第4半導体層を含み、前記伝導性支持部材の上に配置された第2発光構造物と、
前記第1発光構造物の下部周りと前記第2発光構造物の下部周りに配置されたチャンネル層と、
前記第1半導体層に電気的に連結された第1電極と、
前記第2半導体層に電気的に連結された第2電極と、
前記第3半導体層に電気的に連結された第3電極と、
前記第4半導体層に電気的に連結された第4電極と、
前記第1電極と前記伝導性支持部材に電気的に連結された第1連結部と、
前記第2電極と前記第3電極に電気的に連結された第2連結部と、
前記第4電極と電気的に連結され、一端が前記チャンネル層の上に配置された第3連結部と、
を含むことを特徴とする、発光素子。 - 前記第1連結部は前記第1半導体層の側面に接触して配置されたことを特徴とする、請求項1に記載の発光素子。
- 前記チャンネル層の上部面は前記第1活性層の上部面と前記第2活性層の上部面に比べてより高く配置されたことを特徴とする、請求項1または2に記載の発光素子。
- 前記第1電極は前記第1半導体層の上に配置されたことを特徴とする、請求項1乃至3のうち、いずれか1項に記載の発光素子。
- 前記第2電極は前記第2半導体層と前記伝導性支持部材との間に配置されたことを特徴とする、請求項1乃至4のうち、いずれか1項に記載の発光素子。
- 前記第3電極は前記第3半導体層の上に配置されたことを特徴とする、請求項1乃至5のうち、いずれか1項に記載の発光素子。
- 前記第4電極は前記第4半導体層と前記伝導性支持部材との間に配置されたことを特徴とする、請求項1乃至6のうち、いずれか1項に記載の発光素子。
- 前記第3連結部の一端は前記第2発光構造物の側面と離隔して配置され、前記第2発光構造物の側面に露出したことを特徴とする、請求項1乃至7のうち、いずれか1項に記載の発光素子。
- 前記第2電極と前記伝導性支持部材との間と、前記第4電極と前記伝導性支持部材との間に配置された絶縁層を含むことを特徴とする、請求項1乃至8のうち、いずれか1項に記載の発光素子。
- 前記絶縁層の上部面は前記第2発光構造物の下部周りに露出されたことを特徴とする、請求項9に記載の発光素子。
- 前記絶縁層は前記チャンネル層の周りを覆いかぶせるように配置されたことを特徴とする、請求項9または10に記載の発光素子。
- 前記第1連結部は前記チャンネル層を貫通して前記伝導性支持部材に電気的に連結されたことを特徴とする、請求項1乃至11のうち、いずれか1項に記載の発光素子。
- 前記チャンネル層は前記第1活性層の周りと前記第2活性層の周りを覆いかぶせるように配置されたことを特徴とする、請求項1乃至12のうち、いずれか1項に記載の発光素子。
- 前記チャンネル層は前記第2半導体層の周りと前記第4半導体層の周りを覆いかぶせるように配置されたことを特徴とする、請求項1乃至13のうち、いずれか1項に記載の発光素子。
- 前記第1発光構造物と前記第2発光構造物の上部に配置されたラフネス(roughness)を含むことを特徴とする、請求項1乃至14のうち、いずれか1項に記載の発光素子。
- 前記第2電極の下に配置された拡散障壁層、ボンディング層を含むことを特徴とする、請求項1乃至15のうち、いずれか1項に記載の発光素子。
- 前記チャンネル層は酸化物または窒化物を含むことを特徴とする、請求項1乃至16のうち、いずれか1項に記載の発光素子。
- 前記チャンネル層の一端が前記第2導電型の第2半導体層と前記第2電極との間に配置されたことを特徴とする、請求項1乃至17のうち、いずれか1項に記載の発光素子。
- 前記チャンネル層の一端は、前記第2導電型の第2半導体層の下部面に接触して配置されたことを特徴とする、請求項1乃至18のうち、いずれか1項に記載の発光素子。
- 前記第2連結部は、前記第2発光構造物の側面に配置されたことを特徴とする、請求項1乃至19のうち、いずれか1項に記載の発光素子。
- 前記第2連結部は、前記第2活性層と少なくとも3マイクロメートル以上離隔して配置されたことを特徴とする、請求項1乃至20のうち、いずれか1項に記載の発光素子。
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