JP6175009B2 - 高耐圧窒化ガリウム系半導体デバイス及びその製造方法 - Google Patents
高耐圧窒化ガリウム系半導体デバイス及びその製造方法 Download PDFInfo
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- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 title claims description 125
- 229910002601 GaN Inorganic materials 0.000 title claims description 124
- 239000004065 semiconductor Substances 0.000 title claims description 121
- 230000015556 catabolic process Effects 0.000 title claims description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 229910052799 carbon Inorganic materials 0.000 claims description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 41
- 230000005684 electric field Effects 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 17
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052733 gallium Inorganic materials 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
- 229910052710 silicon Inorganic materials 0.000 description 11
- 239000010703 silicon Substances 0.000 description 11
- 229910021529 ammonia Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000000927 vapour-phase epitaxy Methods 0.000 description 3
- 229910002704 AlGaN Inorganic materials 0.000 description 2
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- KXNLCSXBJCPWGL-UHFFFAOYSA-N [Ga].[As].[In] Chemical compound [Ga].[As].[In] KXNLCSXBJCPWGL-UHFFFAOYSA-N 0.000 description 2
- FTWRSWRBSVXQPI-UHFFFAOYSA-N alumanylidynearsane;gallanylidynearsane Chemical compound [As]#[Al].[As]#[Ga] FTWRSWRBSVXQPI-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910005540 GaP Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- -1 carbon hydrogen Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HZXMRANICFIONG-UHFFFAOYSA-N gallium phosphide Chemical compound [Ga]#P HZXMRANICFIONG-UHFFFAOYSA-N 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 229910021478 group 5 element Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- QBJCZLXULXFYCK-UHFFFAOYSA-N magnesium;cyclopenta-1,3-diene Chemical compound [Mg+2].C1C=CC=[C-]1.C1C=CC=[C-]1 QBJCZLXULXFYCK-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 1
- RGGPNXQUMRMPRA-UHFFFAOYSA-N triethylgallium Chemical compound CC[Ga](CC)CC RGGPNXQUMRMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
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Description
前記他の層は、p型窒化ガリウム系半導体層又は電極であると良い。
前記他の層は、p型窒化ガリウム系半導体層又は電極であると良い。
101 n型窒化ガリウム自立基板
102 n型窒化ガリウム系半導体層
103 p型窒化ガリウム系半導体層
104 第1のn型窒化ガリウム半導体層
105 第2のn型窒化ガリウム半導体層
106 第3のn型窒化ガリウム半導体層
107 ドリフト層
108 第4のn型窒化ガリウム半導体層
109 第1のp型窒化ガリウム半導体層
110 第2のp型窒化ガリウム半導体層
Claims (5)
- n型窒化ガリウム自立基板の表面にドリフト層を含むn型窒化ガリウム系半導体層が形成されており、前記n型窒化ガリウム系半導体層の表面に他の層が接合されており、前記n型窒化ガリウム系半導体層は接合面近傍にキャリア濃度が1.5×10 15 /cm 3 以下であると共に炭素濃度が5.0×10 15 /cm 3 以下である接合面近傍低キャリア濃度層を含み、逆耐圧が3000V以上である高耐圧窒化ガリウム系半導体デバイスであって、
前記ドリフト層は、逆バイアスとして降伏現象が発生しない最大許容電圧を印加したときに電界強度が1.5MV/cm以下となる領域の炭素濃度が3.0×1016/cm3以上であることを特徴とする高耐圧窒化ガリウム系半導体デバイス。 - 前記ドリフト層は、厚さが10μm以上である請求項1に記載の高耐圧窒化ガリウム系半導体デバイス。
- 前記他の層は、p型窒化ガリウム系半導体層又は電極である請求項1又は2に記載の高耐圧窒化ガリウム系半導体デバイス。
- n型窒化ガリウム自立基板の表面にドリフト層を含むn型窒化ガリウム系半導体層が形成されており、前記n型窒化ガリウム系半導体層の表面に他の層が接合されており、前記n型窒化ガリウム系半導体層は接合面近傍にキャリア濃度が1.5×10 15 /cm 3 以下であると共に炭素濃度が5.0×10 15 /cm 3 以下である接合面近傍低キャリア濃度層を含み、逆耐圧が3000V以上である高耐圧窒化ガリウム系半導体デバイスの製造方法であって、
前記ドリフト層のうち逆バイアスとして降伏現象が発生しない最大許容電圧を印加したときに電界強度が1.5MV/cm以下となる領域をエピタキシャル成長させる際に、成長温度を1000℃以上1200℃以下、成長圧力を30kPa以上70kPa以下、及びV/III比を2000以上8000以下として、前記領域の炭素濃度を3.0×1016/cm3以上とすることを特徴とする高耐圧窒化ガリウム系半導体デバイスの製造方法。 - 前記他の層は、p型窒化ガリウム系半導体層又は電極である請求項4に記載の高耐圧窒化ガリウム系半導体デバイスの製造方法。
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JP2014021246A JP6175009B2 (ja) | 2014-02-06 | 2014-02-06 | 高耐圧窒化ガリウム系半導体デバイス及びその製造方法 |
CN201410397655.7A CN104835833A (zh) | 2014-02-06 | 2014-08-13 | 高耐压氮化镓系半导体设备及其制造方法 |
US14/481,123 US9184244B2 (en) | 2014-02-06 | 2014-09-09 | High voltage gallium nitride based semiconductor device and manufacturing method of the same |
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JP6175009B2 true JP6175009B2 (ja) | 2017-08-02 |
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JP6398678B2 (ja) * | 2014-12-11 | 2018-10-03 | 富士通株式会社 | 半導体装置及び半導体装置の製造方法 |
WO2016143265A1 (ja) * | 2015-03-11 | 2016-09-15 | パナソニック株式会社 | 窒化物半導体装置 |
US10062776B2 (en) * | 2016-02-05 | 2018-08-28 | Taiwan Semiconductor Manufacturing Company Ltd. | Semiconductor structure and manufacturing method thereof |
JP6656991B2 (ja) * | 2016-03-31 | 2020-03-04 | 株式会社サイオクス | 窒化物半導体基板、半導体装置、および窒化物半導体基板の製造方法 |
CN107293601B (zh) * | 2016-04-12 | 2021-10-22 | 朱江 | 一种肖特基半导体装置及其制备方法 |
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