JP2016072627A - 連続注入および熱処理によってGaNを主成分とする半導体層中のドーパントの活性化を行うための方法 - Google Patents
連続注入および熱処理によってGaNを主成分とする半導体層中のドーパントの活性化を行うための方法 Download PDFInfo
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- 239000002019 doping agent Substances 0.000 title claims abstract description 96
- 239000004065 semiconductor Substances 0.000 title claims abstract description 94
- 238000010438 heat treatment Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000002513 implantation Methods 0.000 title claims abstract description 55
- 230000003213 activating effect Effects 0.000 title claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 65
- 239000012535 impurity Substances 0.000 claims abstract description 47
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 230000004913 activation Effects 0.000 claims description 25
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000004320 controlled atmosphere Methods 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000000137 annealing Methods 0.000 description 17
- 238000001994 activation Methods 0.000 description 16
- 125000004429 atom Chemical group 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- 239000011777 magnesium Substances 0.000 description 12
- 239000010703 silicon Substances 0.000 description 12
- 238000000151 deposition Methods 0.000 description 8
- 230000008021 deposition Effects 0.000 description 8
- 239000007943 implant Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 7
- 238000005468 ion implantation Methods 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 229910052594 sapphire Inorganic materials 0.000 description 5
- 239000010980 sapphire Substances 0.000 description 5
- 229910002704 AlGaN Inorganic materials 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 238000004151 rapid thermal annealing Methods 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000005493 condensed matter Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000407 epitaxy Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 238000010884 ion-beam technique Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000007847 structural defect Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- -1 Si 3 N 4 Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000000927 vapour-phase epitaxy Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
- H01L21/2654—Bombardment with radiation with high-energy radiation producing ion implantation in AIIIBV compounds
- H01L21/26546—Bombardment with radiation with high-energy radiation producing ion implantation in AIIIBV compounds of electrically active species
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
- H01L21/2654—Bombardment with radiation with high-energy radiation producing ion implantation in AIIIBV compounds
- H01L21/26546—Bombardment with radiation with high-energy radiation producing ion implantation in AIIIBV compounds of electrically active species
- H01L21/26553—Through-implantation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
- H01L21/3245—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering of AIIIBV compounds
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- H—ELECTRICITY
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- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/20—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L29/2003—Nitride compounds
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/20—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L29/207—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds further characterised by the doping material
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Abstract
Description
GaNを主成分とする半導体材料層を備える基板を用意することと、
少なくとも2回、下記の連続したステップ、すなわち、
半導体材料層に電気的なドーパント不純物を注入すること、および
半導体材料層中の電気的なドーパント不純物を活性化するように熱処理を行い、熱処理が行われるときにキャップ層が半導体材料層を被覆すること、を行うことと、を備え、
電気的なドーパント不純物の2つの注入ステップが熱処理ステップによって分離されている。
Claims (13)
- 下記のステップ、すなわち、
GaNを主成分とする半導体材料層(1b)を備える基板(1)を用意することと、
少なくとも2回、下記の連続したステップ、すなわち、
前記半導体材料層(1b)に電気的なドーパント不純物(3)を注入すること、
前記半導体材料層(1b)中の前記電気的なドーパント不純物(3)を活性化するように熱処理を行い、前記熱処理が行われるときにキャップ層(2)が前記半導体材料層(1b)を被覆すること、を行うことと
を備えるGaNを主成分とする半導体層中のn型またはp型ドーパントの活性化を行うための方法であって、
電気的なドーパント不純物(3)の2つの注入ステップが熱処理ステップによって分離されている、方法。 - 前記キャップ層(2)が前記熱処理のうちの少なくとも1つの熱処理の後に除去され、次いで第2のキャップ層(2)が次の熱処理の前に前記半導体材料層上に堆積させられる、請求項1に記載のドーパント活性化方法。
- 前記キャップ層(2)および/または前記第2のキャップ層(2)の厚さが、5から500nmの範囲、有利には5から100nmの範囲、好ましくは5から40nmの範囲に備えられる、請求項2に記載のドーパント活性化方法。
- 前記キャップ層(2)および/または前記第2のキャップ層(2)が、いくつかの連続した熱処理に使用され、その厚さが、5から500nmの範囲、有利には5から150nmの範囲、好ましくは80から120nmの範囲に備えられる、請求項1に記載のドーパント活性化方法。
- 前記キャップ層(2)および/または前記第2のキャップ層(2)の材料が、SiO2、Si3N4またはAlNから選ばれる、請求項1乃至4のいずれか一項に記載のドーパント活性化方法。
- それぞれの注入ステップにおいて、注入される全ドーズ量の10%を超える中間のドーズ量が注入される、請求項1乃至5のいずれか一項に記載のドーパント活性化方法。
- 前記注入ステップの少なくとも1つが、15から700℃の範囲に備えられる、好ましくは500℃に等しい温度で行われる、請求項1乃至6のいずれか一項に記載のドーパント活性化方法。
- それぞれの新しい注入ステップにおいて、前記電気的なドーパント不純物(3)が、以前の注入ステップが行われたときに得られたものとは異なる深さで注入される、請求項1乃至7のいずれか一項に記載のドーパント活性化方法。
- 前記熱処理ステップの少なくとも1つが、1から7時間の範囲で、1100℃から1300℃の範囲に備えられる温度で、大気圧で行われる、請求項1乃至8のいずれか一項に記載のドーパント活性化方法。
- 前記熱処理ステップの少なくとも1つが、15kbar未満の圧力の管理された雰囲気で、1000℃から1600℃の範囲に備えられる温度で、1から20分間の範囲で行われる、請求項1乃至9のいずれか一項に記載のドーパント活性化方法。
- 前記熱処理ステップの少なくとも1つが、異なる持続時間および温度の少なくとも2つのアニールの組合せである、請求項1乃至10のいずれか一項に記載のドーパント活性化方法。
- 前記電気的なドーパント不純物(3)が、p型ドーピングを形成するためにMg、P、N、Ca、ZnまたはCから選ばれる、請求項1乃至11のいずれか一項に記載のドーパント活性化方法。
- 前記電気的なドーパント不純物(3)が、n型ドーピングを形成するためにSi、Be、Ge、またはOから選ばれる、請求項1乃至11のいずれか一項に記載のドーパント活性化方法。
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FR1459131A FR3026555A1 (fr) | 2014-09-26 | 2014-09-26 | Procede d'activation de dopants dans une couche semi-conductrice a base de gan par implantations et traitements thermiques successifs |
FR1459131 | 2014-09-26 |
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JP2016072627A true JP2016072627A (ja) | 2016-05-09 |
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US (1) | US9536741B2 (ja) |
EP (1) | EP3001447B1 (ja) |
JP (1) | JP6696751B2 (ja) |
FR (1) | FR3026555A1 (ja) |
Cited By (5)
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JP2017208427A (ja) * | 2016-05-18 | 2017-11-24 | 富士電機株式会社 | 半導体装置の製造方法 |
JP2017228703A (ja) * | 2016-06-23 | 2017-12-28 | 富士電機株式会社 | 半導体装置の製造方法 |
JP2019062139A (ja) * | 2017-09-28 | 2019-04-18 | 豊田合成株式会社 | 半導体装置の製造方法 |
JP2020155469A (ja) * | 2019-03-18 | 2020-09-24 | 国立大学法人東海国立大学機構 | 窒化物半導体装置の製造方法 |
JP2020155468A (ja) * | 2019-03-18 | 2020-09-24 | 国立大学法人東海国立大学機構 | 窒化物半導体装置の製造方法 |
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US10991617B2 (en) * | 2018-05-15 | 2021-04-27 | Applied Materials, Inc. | Methods and apparatus for cleaving of semiconductor substrates |
US10930506B2 (en) * | 2018-06-20 | 2021-02-23 | Lawrence Livermore National Security, Llc | Gallidation assisted impurity doping |
CN109473345B (zh) * | 2018-11-21 | 2021-01-15 | 北京国联万众半导体科技有限公司 | 一种碳化硅器件的离子注入方法 |
FR3104808A1 (fr) * | 2019-12-12 | 2021-06-18 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Procédé de réalisation d'une couche semiconductrice dopée |
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- 2015-09-08 EP EP15184344.8A patent/EP3001447B1/fr active Active
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