KR100939450B1 - 갈륨비소계 반도체 구조상의 산화물층 및 그것을 형성하는방법 - Google Patents
갈륨비소계 반도체 구조상의 산화물층 및 그것을 형성하는방법 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 56
- 229910001218 Gallium arsenide Inorganic materials 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims description 20
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 claims abstract description 45
- 229910001195 gallium oxide Inorganic materials 0.000 claims abstract description 17
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000005669 field effect Effects 0.000 claims abstract description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 5
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 105
- 239000000463 material Substances 0.000 claims description 15
- 238000000151 deposition Methods 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 238000001704 evaporation Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 10
- 150000001875 compounds Chemical class 0.000 abstract description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 29
- 239000002131 composite material Substances 0.000 description 14
- 239000000758 substrate Substances 0.000 description 11
- 230000008021 deposition Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000003949 trap density measurement Methods 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 239000010408 film Substances 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 206010021143 Hypoxia Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001451 molecular beam epitaxy Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 238000002207 thermal evaporation Methods 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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Abstract
Description
본 발명은 특히 게이트 질(gate quality) Ga2O3-화합물 반도체 구조의 새롭고 향상된 제조 방법을 제공한다. 본 발명은 또한 게이트 질 Ga2O3-화합물 반도체 구조의 새롭고 향상된 제조 방법을 제공하고 여기서 산소 결핍들과 관련된 결함들의 밀도는 MOSFET 적용들에 대해 적당하다.
Claims (13)
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- 반도체 구조체 상에 유전체층 구조를 형성하는 방법에 있어서:GaAs계 반도체 구조체를 제공하는 단계;제 1 소스의 증발을 통해 상기 구조체의 표면에 갈륨 산화물의 제 1 층을 침착하는 단계; 및상기 제 1 소소와는 다른 제 2 소스의 증발을 통해 상기 제 1 층에 Ga-Gd-산화물의 제 2 층을 침착하는 단계를 포함하고, 상기 제 1 소소는 결정성 Ga2O3이고 상기 제 2 소소는 Gd 소스 재료이고, 상기 결정성 Ga2O3는 제 1 Ga-Gd-산화물 고온 유출 셀을 사용하여 증발되고, 상기 Gd 소스 재료는 상기 제 1 유출 셀과는 다른 제 2 고온 유출 셀을 사용하여 증발되는, 유전체층 구조 형성 방법.
- 삭제
- 삭제
- 제 6 항에 있어서,상기 갈륨 산화물의 층을 침착하는 단계의 적어도 일부분 동안 원자 산소를 증발시키는 단계를 더 포함하는, 유전체층 구조 형성 방법.
- 제 9 항에 있어서,상기 원자 산소를 증발시키는 단계는 갈륨 산화물의 적어도 하나의 단일층이 상기 반도체 구조체의 표면으로 침착된 후 시작되는, 유전체층 구조 형성 방법.
- 제 6 항에 있어서,상기 GaAs계 반도체 구조체는 GaAs계 헤테로 구조체인, 유전체층 구조 형성 방법.
- 제 11 항에 있어서,상기 GaAs계 반도체 구조체는 적어도 부분적으로 완성된 금속-산화물 전계 효과 트랜지스터인, 유전체층 구조 형성 방법.
- 제 11 항에 있어서,상기 GaAs계 반도체 구조체는 적어도 부분적으로 완성된 헤테로접합 바이폴라 트랜지스터인, 유전체층 구조 형성 방법.
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US10/051,494 | 2002-01-18 | ||
US10/051,494 US6756320B2 (en) | 2002-01-18 | 2002-01-18 | Method of forming article comprising an oxide layer on a GaAs-based semiconductor structure |
PCT/US2002/040528 WO2003063226A2 (en) | 2002-01-18 | 2002-12-18 | Oxide layer on a gaas-based semiconductor structure and method of forming the same |
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US6756320B2 (en) | 2004-06-29 |
JP2006507657A (ja) | 2006-03-02 |
DE60217927T2 (de) | 2007-06-06 |
US20040248427A1 (en) | 2004-12-09 |
CN1333445C (zh) | 2007-08-22 |
DE60217927D1 (de) | 2007-03-15 |
WO2003063226A3 (en) | 2004-01-29 |
CN1618122A (zh) | 2005-05-18 |
EP1476900A2 (en) | 2004-11-17 |
JP4549676B2 (ja) | 2010-09-22 |
EP1476900B1 (en) | 2007-01-24 |
US6914012B2 (en) | 2005-07-05 |
KR20040074124A (ko) | 2004-08-21 |
US20030137018A1 (en) | 2003-07-24 |
US20050221623A1 (en) | 2005-10-06 |
AU2002359741A1 (en) | 2003-09-02 |
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