KR102640296B1 - AlN 재질의 단결정 층을 제조하는 방법 및 AlN 재질의 단결정 층의 에피택셜 성장을 위한 기판 - Google Patents
AlN 재질의 단결정 층을 제조하는 방법 및 AlN 재질의 단결정 층의 에피택셜 성장을 위한 기판 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims abstract description 109
- 239000013078 crystal Substances 0.000 title claims abstract description 99
- 239000000463 material Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 46
- 239000010703 silicon Substances 0.000 claims abstract description 46
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 45
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- 230000010070 molecular adhesion Effects 0.000 claims description 5
- 239000002210 silicon-based material Substances 0.000 claims description 4
- 238000003486 chemical etching Methods 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims 1
- 229910052594 sapphire Inorganic materials 0.000 description 7
- 239000010980 sapphire Substances 0.000 description 7
- 238000000407 epitaxy Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 230000035882 stress Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 229910002367 SrTiO Inorganic materials 0.000 description 3
- 238000000137 annealing Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- -1 hydrogen ions Chemical class 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 235000012431 wafers Nutrition 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
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Abstract
SiC-6H 재질의 단결정 시드 층을 실리콘 재질의 캐리어 기판으로의 전사에 이어서 AlN 재질의 단결정 층의 에피택셜 성장이 뒤따르는 것을 포함하는 AlN 재질의 상기 단결정 층을 생산하는 방법.
Description
도 1은 본 발명의 일 실시 예에 따른 AlN 재질의 단결정 층을 제조하는 공정 및 본 발명의 상기 실시 예에 따른 AlN 재질의 이러한 단결정 층의 에피택셜 성장을 위한 기판을 도시한다.
도 2는 본 발명의 다른 실시 예에 따른 AlN 재질의 단결정 층을 제조하는 공정 및 본 발명의 상기 다른 실시 예에 따른 AlN 재질의 이러한 단결정 층의 에피택셜 성장을 위한 기판을 도시한다.
도 3은 본 발명의 또 다른 실시 예에 따른 AlN 재질의 단결정 층을 제조하는 공정 및 본 발명의 상기 다른 실시 예에 따른 AlN 재질의 이러한 단결정 층의 에피택셜 성장을 위한 기판을 도시한다.
도 4는 본 발명의 또 다른 실시 예에 따른 AlN 재질의 단결정 층을 제조하는 공정 및 본 발명의 상기 다른 실시 예에 따른 AlN 재질의 이러한 단결정 층의 에피택셜 성장을 위한 기판을 도시한다.
도 5는 본 발명의 또 다른 실시 예에 따른 AlN 재질의 단결정 층을 제조하는 공정 및 본 발명의 상기 다른 실시 예에 따른 AlN 재질의 이러한 단결정 층의 에피택셜 성장을 위한 기판을 도시한다.
도면들의 가독성을 향상시키기 위해, 다양한 층들은 반드시 축척으로 도시되는 것은 아니다.
Claims (12)
- SiC-6H 재질의 단결정 시드 층(200, 200', 2000')을 실리콘 재질의 캐리어 기판(100, 100', 100")으로 전사하는 것에 이어서 AlN 재질의 단결정 층(300, 300', 3001, 3002, 3003)을 에피택셜 성장시키는 것이 뒤따르며,
상기 실리콘 재질의 캐리어 기판(100, 100', 100")은 실리콘 층 및 매립된 실리콘 산화물 층을 포함하는 SOI(Silicon On Insulator) 유형 기판이며,
SiC-6H 재질의 상기 단결정 시드 층(200, 200', 2000')은 실리콘 재질의 상기 캐리어 기판(100, 100', 100")으로 각각 전사된 복수의 타일들(2001', 2002', 2003')의 형태로 있으며,
AlN 재질의 상기 단결정 층(300, 300', 3001, 3002, 3003)을 에피택셜 성장시킨 후에, 상기 복수의 타일들(2001', 2002', 2003') 사이의 상기 SOI 유형 기판의 상기 실리콘 층을 부분적으로 제거하는 것을 포함하는 AlN 재질의 상기 단결정 층(300, 300', 3001, 3002, 3003)을 제조하는 방법. - 청구항 1에 있어서,
상기 단결정 시드 층(200, 200', 2000')은 10 ㎛ 미만의 두께를 갖는 것을 특징으로 하는 방법. - 청구항 1에 있어서,
SiC-6H 재질의 상기 단결정 시드 층(200, 200', 2000')을 실리콘 재질의 상기 캐리어 기판(100, 100', 100")으로 전사하는 것은, SiC-6H 재질의 단결정 기판(20, 20', 2001, 2002, 2003)을 상기 캐리어 기판(100, 100', 100")에 결합시키는 단계(1', 1'', 1''')에 이어서 SiC-6H 재질의 상기 단결정 기판(20, 20', 2001, 2002, 2003)을 씨닝(thinning)하는 단계(2', 2'', 2''')가 뒤따르는 것을 포함하는 것을 특징으로 하는 방법. - 청구항 3에 있어서,
상기 씨닝하는 단계(2'')는, 실리콘 재질의 상기 캐리어 기판(100, 100', 100")으로 전사되도록 의도된 SiC-6H 재질의 상기 단결정 기판(20')의 부분(200')을 한정하는 약화된 구역을 형성하는 것을 포함하는 것을 특징으로 하는 방법. - 청구항 4에 있어서,
상기 약화된 구역을 형성하는 것은 원자 및 이온 종들 중의 하나 이상을 주입(0'')함으로써 얻어지는 것을 특징으로 하는 방법. - 청구항 4 및 5 중의 하나에 있어서,
상기 씨닝하는 단계(2'')는, 실리콘 재질의 상기 캐리어 기판(100, 100', 100")으로 SiC-6H 재질의 상기 단결정 기판(20')의 상기 부분(200')을 전사하도록 상기 약화된 구역에서 분리하는 것을 포함하며, 상기 분리하는 것은 열적 및 기계적 스트레스 중의 하나 이상의 적용을 포함하는 것을 특징으로 하는 방법. - 청구항 3에 있어서,
상기 결합하는 단계(1', 1'', 1''')는 분자 접착(molecular adhesion) 단계를 통해 수행되는 것을 특징으로 하는 방법. - 청구항 1에 있어서,
상기 복수의 타일들(2001', 2002', 2003') 사이의 상기 SOI 유형 기판의 상기 실리콘 층을 부분적으로 제거한 후에, 화학적 식각에 의해 상기 매립된 실리콘 산화물 층을 선택적으로 식각함으로써 실리콘 재질의 상기 캐리어 기판(100, 100', 100")을 분리하는 것을 더 포함하는 것을 특징으로 하는 방법. - 청구항 1에 있어서,
상기 복수의 타일들(2001', 2002', 2003') 사이의 상기 SOI 유형 기판의 상기 실리콘 층을 부분적으로 제거하는 것은 에피택셜 성장된 AlN 재질의 상기 단결정 층(300, 300', 3001, 3002, 3003)을 최종 기판에 결합한 후에 수행되는 것을 특징으로 하는 방법. - 실리콘 재질의 캐리어 기판(100, 100', 100") 상에 SiC-6H 재질의 단결정 시드 층(200, 200', 2000')을 포함하며, 상기 실리콘 재질의 캐리어 기판(100, 100', 100")은 실리콘 층 및 매립된 실리콘 산화물 층을 포함하는 SOI 유형 기판이며, SiC-6H 재질의 상기 단결정 시드 층(200, 200', 2000')은 실리콘 재질의 상기 캐리어 기판(100, 100', 100")으로 각각 전사된 복수의 타일들(2001', 2002', 2003')의 형태로 존재하는 것을 특징으로 하는 AlN 재질의 단결정 층(300, 300', 3001, 3002, 3003)의 에피택셜 성장을 위한 기판.
- 삭제
- 청구항 10에 있어서,
실리콘 재질의 상기 캐리어 기판(100, 100', 100")의 상기 매립된 실리콘 산화물 층은 화학적 공격에 의해 분리되도록 구성된 분리 가능한 인터페이스(40, 40')를 포함하는 것을 특징으로 하는 AlN 재질의 단결정 층(300, 300', 3001, 3002, 3003)의 에피택셜 성장을 위한 기판.
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FR1800254A FR3079532B1 (fr) | 2018-03-28 | 2018-03-28 | Procede de fabrication d'une couche monocristalline de materiau ain et substrat pour croissance par epitaxie d'une couche monocristalline de materiau ain |
PCT/IB2019/000205 WO2019186266A2 (fr) | 2018-03-28 | 2019-03-26 | Procédé de fabrication d'une couche monocristalline de matériau ain et substrat pour croissance par épitaxie d'une couche monocristalline de matériau ain |
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CN115443353A (zh) * | 2020-04-14 | 2022-12-06 | 学校法人关西学院 | 氮化铝衬底的制造方法、氮化铝衬底和抑制在氮化铝层中产生裂纹的方法 |
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US20240384432A1 (en) | 2024-11-21 |
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