JP5366134B2 - 銀含有金属オーミック接触電極 - Google Patents
銀含有金属オーミック接触電極 Download PDFInfo
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- JP5366134B2 JP5366134B2 JP2009111720A JP2009111720A JP5366134B2 JP 5366134 B2 JP5366134 B2 JP 5366134B2 JP 2009111720 A JP2009111720 A JP 2009111720A JP 2009111720 A JP2009111720 A JP 2009111720A JP 5366134 B2 JP5366134 B2 JP 5366134B2
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- Japan
- Prior art keywords
- layer
- silver
- ohmic contact
- contact electrode
- containing metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229910052709 silver Inorganic materials 0.000 title claims abstract description 34
- 239000004332 silver Substances 0.000 title claims abstract description 34
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 title claims abstract description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 24
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 19
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000004065 semiconductor Substances 0.000 claims abstract description 13
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 11
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000137 annealing Methods 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 8
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 8
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical group [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 7
- 238000000151 deposition Methods 0.000 abstract 1
- 150000003378 silver Chemical class 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 8
- 229910052737 gold Inorganic materials 0.000 description 8
- 239000010931 gold Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- SCCCLDWUZODEKG-UHFFFAOYSA-N germanide Chemical compound [GeH3-] SCCCLDWUZODEKG-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Electrodes Of Semiconductors (AREA)
- Led Devices (AREA)
Description
Conductivity)のオーミック接触電極であって、銀を材料として、既存の業界工程と互換でき、生産コストを低減できるものに関する。
Resistivity)と高い熱伝導率(Thermal Conductivity)のオーミック接触電極1が形成される。また、上記オーミック接触電極1は、上記各金属層の厚さを制御してアニール処理のアニール温度に合わせて、低い電気抵抗率と高い熱伝導率のオーミック接触電極1が得られ、本実施例において、上記ニッケル層の厚さ範囲が、10nmで、上記ゲルマニウム層の厚さ範囲が、1nm〜50nmで、上記銀層の厚さ範囲が、5nm〜200nmであり、また、上記銀層と上記ゲルマニウム層の厚さ比例範囲が、Ag /Ge=7〜8の間にあり、そして、上記パラジウム層の厚さ範囲が、80nm以上で、或いは、上記プラチナ層の厚さ範囲が、50nm以上であり、また、アニール温度が、約400℃で、銀含有金属のオーミック接触電極1(図2のように)が形成される。また、上記n形III-V族化合物半導体層2は、発光ダイオードやレーザダイオード、太陽電池及びトランジスタから選ばれた何れかの一つである。
11 ニッケル層
12 ゲルマニウム層
13 銀層
14 パラジウム層或いはプラチナ層
15 厚い膜金属層
2 n形III-V族化合物半導体層
Claims (3)
- 厚さ範囲が1nm〜20nmの間のニッケル(Ni)層、厚さ範囲が1nm〜50nmの間のゲルマニウム(Ge)層、厚さ範囲が5nm〜200nmの間の銀(Ag)層、厚さ範囲が20nm〜200nmの間のパラジウム(Pd)層或いは厚さ範囲が10nm〜200nmの間のプラチナ(Pt)層及び厚い膜金属(Thick Metal)層からなり、順に、n形III-V族化合物半導体層上に堆積されてから、温度範囲が300°C〜400°Cの間でアニール(Anneal)処理を介して形成された構造で、上記銀層と上記ゲルマニウム層との厚さの比例範囲が、Ag/Ge=7〜8にあるオーミック接触電極が備えられる、
ことを特徴とする銀含有金属オーミック接触電極。 - 上記n形III-V族化合物半導体層が、ガリウム砒素(GaAs)であることを特徴とする請求項1に記載の銀含有金属オーミック接触電極。
- 上記n形III-V族化合物半導体層が、発光ダイオードやレーザダイオード、太陽電池及びトランジスタから選ばれた何れかの一つであることを特徴とする請求項1に記載の銀含有金属オーミック接触電極。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009111720A JP5366134B2 (ja) | 2009-05-01 | 2009-05-01 | 銀含有金属オーミック接触電極 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009111720A JP5366134B2 (ja) | 2009-05-01 | 2009-05-01 | 銀含有金属オーミック接触電極 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010263029A JP2010263029A (ja) | 2010-11-18 |
| JP5366134B2 true JP5366134B2 (ja) | 2013-12-11 |
Family
ID=43360892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009111720A Expired - Fee Related JP5366134B2 (ja) | 2009-05-01 | 2009-05-01 | 銀含有金属オーミック接触電極 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5366134B2 (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100012175A1 (en) | 2008-07-16 | 2010-01-21 | Emcore Solar Power, Inc. | Ohmic n-contact formed at low temperature in inverted metamorphic multijunction solar cells |
| WO2013095523A1 (en) * | 2011-12-22 | 2013-06-27 | Intel Corporation | Cmos-compatible gold-free contacts |
| CN110060921B (zh) * | 2018-07-09 | 2021-03-02 | 南方科技大学 | 厚度不受限制的NiGe单晶薄膜及其制备方法和应用 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57169268A (en) * | 1981-04-10 | 1982-10-18 | Mitsubishi Electric Corp | Ohmic electrode material of n type 3-5 group compound semiconductor and formation of ohmic electrode therewith |
| JPS5966166A (ja) * | 1982-10-07 | 1984-04-14 | Mitsubishi Electric Corp | N形3−5族化合物半導体のオ−ム性電極 |
| US4998158A (en) * | 1987-06-01 | 1991-03-05 | Motorola, Inc. | Hypoeutectic ohmic contact to N-type gallium arsenide with diffusion barrier |
| JPH029171A (ja) * | 1988-06-27 | 1990-01-12 | Sumitomo Electric Ind Ltd | オーミック電極 |
| US20100025850A1 (en) * | 2007-03-28 | 2010-02-04 | Panasonic Corporation | Ohmic electrode structure and semiconductor element |
-
2009
- 2009-05-01 JP JP2009111720A patent/JP5366134B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010263029A (ja) | 2010-11-18 |
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