JP2023527310A - ベリリウムをドープしたショットキーコンタクト層を有する空乏モード高電子移動度電界効果トランジスタ半導体デバイス - Google Patents
ベリリウムをドープしたショットキーコンタクト層を有する空乏モード高電子移動度電界効果トランジスタ半導体デバイス Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 60
- 229910052790 beryllium Inorganic materials 0.000 title claims description 17
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 title claims description 17
- 230000005669 field effect Effects 0.000 title claims description 6
- 239000000463 material Substances 0.000 claims abstract description 33
- 150000004767 nitrides Chemical class 0.000 claims abstract description 10
- 229910002601 GaN Inorganic materials 0.000 claims description 55
- 239000000758 substrate Substances 0.000 claims description 12
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 description 47
- 229910002704 AlGaN Inorganic materials 0.000 description 18
- 239000011777 magnesium Substances 0.000 description 6
- 230000010287 polarization Effects 0.000 description 6
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- 239000013078 crystal Substances 0.000 description 5
- 239000002019 doping agent Substances 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 4
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000002178 crystalline material Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910052747 lanthanoid Inorganic materials 0.000 description 2
- 150000002602 lanthanoids Chemical class 0.000 description 2
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- 241000473391 Archosargus rhomboidalis Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 101150027068 DEGS1 gene Proteins 0.000 description 1
- -1 InN Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000010899 nucleation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical class O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- 238000003892 spreading Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/47—Schottky barrier electrodes
- H01L29/475—Schottky barrier electrodes on AIII-BV compounds
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
- H01L29/7786—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
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- H01L29/41725—Source or drain electrodes for field effect devices
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- Junction Field-Effect Transistors (AREA)
Abstract
Description
Claims (10)
- 半導体デバイスであって:
一対の積層III族窒化物半導体層であり、当該一対の半導体層の下層内に形成された2 DEGチャネルとのヘテロ接合を形成する積層III族窒化物半導体層;
前記一対の積層III族窒化物半導体層の上層の上に配置されたソース電極;
前記一対の積層III族窒化物半導体層の前記上層の上に配置されたドレイン電極;
前記一対の積層III族窒化物半導体層の前記上層上に配置された、ベリリウムでドープされIII族窒化物材料のキャップ層であり、前記ソース電極のオーム接触領域から前記ドレイン電極のオーム接触領域まで延びるドープされたIII族窒化物材料のキャップ層;及び
前記ドープされたIII族窒化物材料のキャップ層とショットキー接触し、前記ソース電極と前記ドレイン電極との間に配置されたゲート電極;
を含む半導体デバイス。 - 前記のベリリウムでドープされたIII族窒化物材料のキャップ層は、ベリリウムでドープされた窒化ガリウムである、請求項1に記載の半導体デバイス。
- 前記のベリリウムでドープされたIII族窒化物材料は1 nmから10 nmの厚さを有する層である、請求項1に記載の半導体デバイス。
- 前記のベリリウムのドーピング濃度が1 x 1016/cm3から5 x 1019/cm3の範囲である、請求項1に記載の半導体デバイス。
- 前記のベリリウムをドープしたIII族窒化物材料が1 nmから10 nmの厚さを有する層である、請求項2に記載の半導体デバイス。
- 前記半導体デバイスが空乏モード電界効果トランジスタである、請求項1に記載の半導体デバイス。
- 半導体デバイスであって:
基板;
前記基板上の一対のIII族窒化物層であり、当該一対のIII族窒化物層の下層内の2 DEGチャネルとのヘテロ接合を形成するIII族窒化物層;
前記一対のIII族窒化物層の上層上にあるベリリウムでドープされたIII族窒化物キャップ層;及び
前記のベリリウムでドープされたIII族窒化物キャップ層の一部とのショットキー接触状態にある電気コンタクト;
を含む半導体デバイス。 - 前記のベリリウムでドープされたIII族窒化物が1 nmから10 nmの厚さを有する層である、請求項7に記載の半導体デバイス。
- 前記のベリリウムのドーピング濃度が1 x 1016/cm3から5 x 1019/cm3の範囲である、請求項7に記載の半導体デバイス。
- 前記のベリリウムでドープされたIII族窒化物が1 nmから10 nmの厚さを有する層である、請求項9に記載の半導体デバイス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US16/881,412 | 2020-05-22 | ||
US16/881,412 US11362190B2 (en) | 2020-05-22 | 2020-05-22 | Depletion mode high electron mobility field effect transistor (HEMT) semiconductor device having beryllium doped Schottky contact layers |
PCT/US2021/020626 WO2021236199A1 (en) | 2020-05-22 | 2021-03-03 | Depletion mode high electron mobility field effect transistor (hemt) semiconductor device having beryllium doped schottky contact layers |
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JP2023527310A true JP2023527310A (ja) | 2023-06-28 |
JP7544455B2 JP7544455B2 (ja) | 2024-09-03 |
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JP2022571130A Active JP7544455B2 (ja) | 2020-05-22 | 2021-03-03 | ベリリウムをドープしたショットキーコンタクト層を有する空乏モード高電子移動度電界効果トランジスタ半導体デバイス |
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US (1) | US11362190B2 (ja) |
EP (1) | EP4154322A1 (ja) |
JP (1) | JP7544455B2 (ja) |
KR (1) | KR20230007512A (ja) |
TW (1) | TWI807272B (ja) |
WO (1) | WO2021236199A1 (ja) |
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US11101378B2 (en) | 2019-04-09 | 2021-08-24 | Raytheon Company | Semiconductor structure having both enhancement mode group III-N high electron mobility transistors and depletion mode group III-N high electron mobility transistors |
US11545566B2 (en) | 2019-12-26 | 2023-01-03 | Raytheon Company | Gallium nitride high electron mobility transistors (HEMTs) having reduced current collapse and power added efficiency enhancement |
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US11545566B2 (en) | 2019-12-26 | 2023-01-03 | Raytheon Company | Gallium nitride high electron mobility transistors (HEMTs) having reduced current collapse and power added efficiency enhancement |
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KR20230007512A (ko) | 2023-01-12 |
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