JP4501507B2 - シリコン単結晶育成方法 - Google Patents
シリコン単結晶育成方法 Download PDFInfo
- Publication number
- JP4501507B2 JP4501507B2 JP2004111988A JP2004111988A JP4501507B2 JP 4501507 B2 JP4501507 B2 JP 4501507B2 JP 2004111988 A JP2004111988 A JP 2004111988A JP 2004111988 A JP2004111988 A JP 2004111988A JP 4501507 B2 JP4501507 B2 JP 4501507B2
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- Prior art keywords
- single crystal
- magnetic field
- pulling
- defect
- speed
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims description 27
- 229910052710 silicon Inorganic materials 0.000 title claims description 27
- 239000010703 silicon Substances 0.000 title claims description 27
- 238000002109 crystal growth method Methods 0.000 title claims description 3
- 239000013078 crystal Substances 0.000 claims description 140
- 230000007547 defect Effects 0.000 claims description 35
- 239000000155 melt Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 21
- 238000009826 distribution Methods 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 230000004907 flux Effects 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 description 26
- 230000002093 peripheral effect Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000004854 X-ray topography Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005247 gettering Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Images
Description
なお、単結晶の有転位化および割れの発生を抑制する観点からは、ΔTは大きくても10%以内に留めることが望ましく、ΔTの大きさは水平磁場発生コイルの上下コイル間隔を変えることによって調整することができる。
Claims (2)
- チョクラルスキー法により、るつぼ内の融液に水平方向の磁場を印加しつつ単結晶を引き上げる半導体用シリコン単結晶の製造において、
融液表面からの深さが100mmから600mmまでの範囲にて、磁場中心(磁束密度の最大値位置)が位置し、かつ当該範囲における磁束密度分布の変動が3%以上10%以下であり、磁場中心の磁場強さが0.1〜0.2Tの範囲にある磁場を印加しつつ、転位クラスター欠陥の現れない下限の引き上げ速度から赤外線散乱体欠陥の現れない上限の引き上げ速度の間の速度で引き上げをおこない、直径が300mm以上の単結晶を育成することを特徴とするシリコン単結晶育成方法。
- 単結晶の回転を6回転/分以上とし、るつぼの回転を5回転/分以下とするとともに、磁場密度が均一な磁場を印加させた場合に単結晶が無欠陥領域となる引き上げ速度に対して10〜40%増加させた引き上げ速度で引き上げをおこなうことを特徴とする請求項1に記載のシリコン単結晶育成方法。
Priority Applications (1)
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JP2004111988A JP4501507B2 (ja) | 2004-04-06 | 2004-04-06 | シリコン単結晶育成方法 |
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JP2004111988A JP4501507B2 (ja) | 2004-04-06 | 2004-04-06 | シリコン単結晶育成方法 |
Publications (2)
Publication Number | Publication Date |
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JP2005298223A JP2005298223A (ja) | 2005-10-27 |
JP4501507B2 true JP4501507B2 (ja) | 2010-07-14 |
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JP2004111988A Expired - Lifetime JP4501507B2 (ja) | 2004-04-06 | 2004-04-06 | シリコン単結晶育成方法 |
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JP (1) | JP4501507B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4919343B2 (ja) * | 2007-02-06 | 2012-04-18 | コバレントマテリアル株式会社 | 単結晶引上装置 |
JP4829176B2 (ja) | 2007-06-08 | 2011-12-07 | シルトロニック・ジャパン株式会社 | 単結晶の製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08333191A (ja) * | 1995-06-01 | 1996-12-17 | Shin Etsu Handotai Co Ltd | 単結晶の製造方法及び装置 |
JPH09188590A (ja) * | 1995-12-29 | 1997-07-22 | Shin Etsu Handotai Co Ltd | 単結晶の製造方法および装置 |
JPH11268987A (ja) * | 1998-03-20 | 1999-10-05 | Shin Etsu Handotai Co Ltd | シリコン単結晶およびその製造方法 |
JP2001158690A (ja) * | 1999-11-30 | 2001-06-12 | Sumitomo Metal Ind Ltd | 高品質シリコン単結晶の製造方法 |
JP2002137988A (ja) * | 2000-10-31 | 2002-05-14 | Super Silicon Kenkyusho:Kk | 単結晶引上げ方法 |
-
2004
- 2004-04-06 JP JP2004111988A patent/JP4501507B2/ja not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08333191A (ja) * | 1995-06-01 | 1996-12-17 | Shin Etsu Handotai Co Ltd | 単結晶の製造方法及び装置 |
JPH09188590A (ja) * | 1995-12-29 | 1997-07-22 | Shin Etsu Handotai Co Ltd | 単結晶の製造方法および装置 |
JPH11268987A (ja) * | 1998-03-20 | 1999-10-05 | Shin Etsu Handotai Co Ltd | シリコン単結晶およびその製造方法 |
JP2001158690A (ja) * | 1999-11-30 | 2001-06-12 | Sumitomo Metal Ind Ltd | 高品質シリコン単結晶の製造方法 |
JP2002137988A (ja) * | 2000-10-31 | 2002-05-14 | Super Silicon Kenkyusho:Kk | 単結晶引上げ方法 |
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JP2005298223A (ja) | 2005-10-27 |
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