JP6095060B2 - Si多結晶インゴットの製造方法 - Google Patents
Si多結晶インゴットの製造方法 Download PDFInfo
- Publication number
- JP6095060B2 JP6095060B2 JP2013085169A JP2013085169A JP6095060B2 JP 6095060 B2 JP6095060 B2 JP 6095060B2 JP 2013085169 A JP2013085169 A JP 2013085169A JP 2013085169 A JP2013085169 A JP 2013085169A JP 6095060 B2 JP6095060 B2 JP 6095060B2
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- JP
- Japan
- Prior art keywords
- solid
- liquid interface
- cooling rate
- impurities
- ingot
- 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.)
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- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000007788 liquid Substances 0.000 claims description 57
- 238000001816 cooling Methods 0.000 claims description 41
- 239000013078 crystal Substances 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 27
- 238000007711 solidification Methods 0.000 claims description 14
- 230000008023 solidification Effects 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000012535 impurity Substances 0.000 description 39
- 239000002994 raw material Substances 0.000 description 17
- 238000005204 segregation Methods 0.000 description 12
- 239000000155 melt Substances 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 239000002019 doping agent Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 238000007429 general method Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/546—Polycrystalline silicon PV cells
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
- Photovoltaic Devices (AREA)
- Silicon Compounds (AREA)
Description
Claims (1)
- Si多結晶インゴットの一方向凝固過程において、固液界面の結晶粒界部分における溝の形成を抑制するよう、前記固液界面の冷却速度を0.01℃/分〜0.5℃/分の範囲にして、前記固液界面の粒界部分の形状を平坦な形状に維持したままSi多結晶インゴットを作製することを特徴とするSi多結晶インゴットの製造方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013085169A JP6095060B2 (ja) | 2013-04-15 | 2013-04-15 | Si多結晶インゴットの製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013085169A JP6095060B2 (ja) | 2013-04-15 | 2013-04-15 | Si多結晶インゴットの製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014205598A JP2014205598A (ja) | 2014-10-30 |
JP6095060B2 true JP6095060B2 (ja) | 2017-03-15 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2013085169A Active JP6095060B2 (ja) | 2013-04-15 | 2013-04-15 | Si多結晶インゴットの製造方法 |
Country Status (1)
Country | Link |
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JP (1) | JP6095060B2 (ja) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004284892A (ja) * | 2003-03-24 | 2004-10-14 | Jfe Steel Kk | 多結晶シリコンの製造方法 |
FR2908125B1 (fr) * | 2006-11-02 | 2009-11-20 | Commissariat Energie Atomique | Procede de purification de silicium metallurgique par solidification dirigee |
JP4528995B2 (ja) * | 2007-08-02 | 2010-08-25 | 国立大学法人東北大学 | Siバルク多結晶インゴットの製造方法 |
JP4674327B2 (ja) * | 2007-09-10 | 2011-04-20 | 国立大学法人東北大学 | Si多結晶インゴット、Si多結晶インゴットの製造方法およびSi多結晶ウェハー |
JP5721207B2 (ja) * | 2010-04-27 | 2015-05-20 | 株式会社 東北テクノアーチ | Si多結晶インゴットの製造装置、Si多結晶インゴットおよびSi多結晶ウェハー |
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2013
- 2013-04-15 JP JP2013085169A patent/JP6095060B2/ja active Active
Also Published As
Publication number | Publication date |
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JP2014205598A (ja) | 2014-10-30 |
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