JP2020184616A - 基板およびその形成方法 - Google Patents
基板およびその形成方法 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 47
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 115
- 239000001301 oxygen Substances 0.000 claims abstract description 58
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 58
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 57
- 230000004888 barrier function Effects 0.000 claims abstract description 43
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 41
- 239000010703 silicon Substances 0.000 claims abstract description 41
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims description 128
- 239000012790 adhesive layer Substances 0.000 claims description 94
- 239000000463 material Substances 0.000 claims description 21
- 238000005137 deposition process Methods 0.000 claims description 15
- 238000005229 chemical vapour deposition Methods 0.000 claims description 8
- 239000004065 semiconductor Substances 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 6
- 229910002601 GaN Inorganic materials 0.000 claims description 5
- 229910004166 TaN Inorganic materials 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 229910052715 tantalum Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 229910001195 gallium oxide Inorganic materials 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 125000004433 nitrogen atom Chemical group N* 0.000 description 10
- 125000004430 oxygen atom Chemical group O* 0.000 description 9
- 239000013078 crystal Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 5
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000005388 borosilicate glass Substances 0.000 description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 239000005360 phosphosilicate glass Substances 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 229910002704 AlGaN Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- H01L21/0214—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC the material being a silicon oxynitride, e.g. SiON or SiON:H
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Abstract
Description
102 セラミックコア
104 第1の接着層
106 バリア層
108 第2の接着層
110 充填層
111 シリコン
112 接合層
114 単結晶層
116 エピタキシャル層
118 導電層
T1、T2、T3、T4 厚さ
Claims (20)
- セラミックコア、
前記セラミックコアを覆い、酸窒化シリコンを含み、前記第1の接着層の酸窒化シリコンの酸素と窒素の原子数比は第1の比率を有する第1の接着層、
前記第1の接着層を覆い、酸窒化シリコンを含み、前記バリア層の酸窒化シリコンの酸素と窒素の原子数比は、前記第1の比率と異なる第2の比率を有するバリア層、および
前記バリア層を覆い、酸窒化シリコンを含み、前記第2の接着層の酸窒化シリコンの酸素と窒素の原子数比は、前記第2の比率と異なる第3の比率を有する第2の接着層、
を含む基板。 - 前記第1の比率と前記第3の比率は、それぞれ独立して6:4から9:1の範囲にある請求項1に記載の基板。
- 前記第2の比率は1:9から4:6の範囲にある請求項1に記載の基板。
- 前記バリア層の厚さと前記第1の接着層の厚さまたは前記第2の接着層との比率は、3から6の範囲にある請求項1に記載の基板。
- 前記セラミックコアは、窒化アルミニウム、窒化ガリウム、窒化アルミニウムガリウム、炭化ケイ素、酸化亜鉛、酸化ガリウム、またはそれらの組み合わせを含む請求項1に記載の基板。
- 前記第2の接着層の第1の側面に配置され、III‐V族半導体材料を含むエピタキシャル層、および
前記エピタキシャル層と前記第2の接着層との間に配置された接合層をさらに含む請求項1に記載の基板。 - 前記接合層と前記第2の接着層との間に配置された充填層をさらに含む請求項6に記載の基板。
- 前記第2の接着層の第2の側面に配置された導電層をさらに含み、前記第2の側面は前記第1の側面の反対側にある請求項6に記載の基板。
- 前記導電層の側壁は、前記第2の接着層の第3の側面の側壁と同一平面上にあり、前記第3の側面は、前記第1の側面と前記第2の側面の間にある請求項8に記載の基板。
- 前記導電層は、Ti、TiN、Co、Ni、Pt、Ta、TaN、SiCr、またはそれらの組み合わせを含む請求項8に記載の基板。
- 前記導電層の厚さは、1000Åから10000Åの範囲にある請求項8に記載の基板。
- セラミックコアを提供するステップ、および
堆積プロセス中にケイ素源、酸素源、および窒素源を提供し、前記セラミックコアを覆う第1の接着層、前記第1の接着層を覆うバリア層、および前記バリア層を覆う第2の接着層を順次に形成するステップを含み、
前記第1の接着層の酸素と窒素の原子数比、前記バリア層の酸素と窒素の原子数比、および前記第2の接着層の酸素と窒素の原子数比は、第1の比率、第2の比率、および第3の比率をそれぞれ有し、前記第2の比率は前記第1の比率と異なり、前記第3の比率は、前記第2の比率と異なる基板を形成する方法。 - 前記第1の比率と前記第3の比率は、それぞれ独立して6:4から9:1の範囲にある請求項12に記載の方法。
- 前記第2の比率は1:9から4:6の範囲にある請求項12に記載の方法。
- 前記酸素源は、水蒸気、酸素、オゾン、またはそれらの組み合わせを含み、前記窒素源は、アンモニア、窒素、またはそれらの組み合わせを含み、前記堆積プロセスは、酸素と窒素の流量比を8:2から2:8に調整し、次いで8:2に調整するステップを含む請求項12に記載の方法。
- 前記堆積プロセスは、化学気相堆積プロセスを含む請求項12に記載の方法。
- 前記第2の接着層の第1の側面に接合層を形成するステップ、
前記接合層にエピタキシャル層を形成するステップ、および
前記第2の接着層の第2の側面に導電層を形成するステップをさらに含み、前記第2の側面は前記第1の側面の反対側にある請求項12に記載の方法。 - 前記導電層の側壁は、前記第2の接着層の第3の側面の側壁と同一平面上にあり、前記第3の側面は、前記第1の側面と前記第2の側面の間にある請求項17に記載の方法。
- 前記導電層は、Ti、TiN、Co、Ni、Pt、Ta、TaN、SiCr、またはそれらの組み合わせを含む請求項17に記載の方法。
- 前記接合層を形成する前に充填層を形成するステップをさらに含み、前記充填層は多層構造を含む請求項17に記載の方法。
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JPWO2023063278A1 (ja) * | 2021-10-15 | 2023-04-20 | ||
WO2023063046A1 (ja) * | 2021-10-15 | 2023-04-20 | 信越半導体株式会社 | 窒化物半導体基板及びその製造方法 |
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JP7549549B2 (ja) | 2021-02-26 | 2024-09-11 | 信越半導体株式会社 | 窒化物半導体基板およびその製造方法 |
JPWO2022259651A1 (ja) * | 2021-06-08 | 2022-12-15 | ||
WO2022259651A1 (ja) * | 2021-06-08 | 2022-12-15 | 信越半導体株式会社 | 窒化物半導体基板及びその製造方法 |
JP7334869B2 (ja) | 2021-06-08 | 2023-08-29 | 信越半導体株式会社 | 窒化物半導体基板及びその製造方法 |
JPWO2023063278A1 (ja) * | 2021-10-15 | 2023-04-20 | ||
WO2023063046A1 (ja) * | 2021-10-15 | 2023-04-20 | 信越半導体株式会社 | 窒化物半導体基板及びその製造方法 |
WO2023063278A1 (ja) * | 2021-10-15 | 2023-04-20 | 信越半導体株式会社 | 窒化物半導体基板及びその製造方法 |
JPWO2023063046A1 (ja) * | 2021-10-15 | 2023-04-20 | ||
JP7533793B2 (ja) | 2021-10-15 | 2024-08-14 | 信越半導体株式会社 | 窒化物半導体基板及びその製造方法 |
JP7533794B2 (ja) | 2021-10-15 | 2024-08-14 | 信越半導体株式会社 | 窒化物半導体基板の製造方法 |
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US20200350410A1 (en) | 2020-11-05 |
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