JP5004403B2 - 高電子移動度トランジスタ(hemt) - Google Patents
高電子移動度トランジスタ(hemt) Download PDFInfo
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- JP5004403B2 JP5004403B2 JP2002590421A JP2002590421A JP5004403B2 JP 5004403 B2 JP5004403 B2 JP 5004403B2 JP 2002590421 A JP2002590421 A JP 2002590421A JP 2002590421 A JP2002590421 A JP 2002590421A JP 5004403 B2 JP5004403 B2 JP 5004403B2
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- 229910002601 GaN Inorganic materials 0.000 claims description 66
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 61
- 230000004888 barrier function Effects 0.000 claims description 32
- 239000000758 substrate Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 19
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 16
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 15
- 230000006911 nucleation Effects 0.000 claims description 7
- 238000010899 nucleation Methods 0.000 claims description 7
- 229910052594 sapphire Inorganic materials 0.000 claims description 7
- 239000010980 sapphire Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 165
- 229910002704 AlGaN Inorganic materials 0.000 description 19
- 230000010287 polarization Effects 0.000 description 13
- 239000000203 mixture Substances 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 150000004767 nitrides Chemical class 0.000 description 6
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229910001362 Ta alloys Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000005669 field effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 238000000927 vapour-phase epitaxy Methods 0.000 description 2
- ZXEYZECDXFPJRJ-UHFFFAOYSA-N $l^{3}-silane;platinum Chemical compound [SiH3].[Pt] ZXEYZECDXFPJRJ-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001260 Pt alloy Inorganic materials 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 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
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination 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
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229910021339 platinum silicide Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000005533 two-dimensional electron gas Effects 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- 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
- H01L29/7782—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 confinement of carriers by at least two heterojunctions, e.g. DHHEMT, quantum well HEMT, DHMODFET
- H01L29/7783—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 confinement of carriers by at least two heterojunctions, e.g. DHHEMT, quantum well HEMT, DHMODFET using III-V semiconductor material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/20—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L29/2003—Nitride compounds
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Junction Field-Effect Transistors (AREA)
Description
GaAsを基礎とするHEMTは、民生用及び軍需用レーダ、セルラ用送受機、及び衛星通信における信号増幅の標準となっている。GaAsは、Siよりも高い電子移動度(約6000cm2/V−s)及び低いソース抵抗を有するので、GaAs系デバイスは、より高い周波数で機能することができる。しかしながら、GaAsのバンドギャップは比較的小さく(常温において1.42eV)、降伏電圧も比較的低いため、GaAs系HEMTは高周波数において高い電力を発生することができない。
Claims (6)
- 高電子移動度トランジスタ(HEMT)(20)であって、
GaNバッファ層(26)と、
前記GaNバッファ層(26)上にあり、厚さが5〜20ÅのAlyGa1−yN層(28)(ただし、y=1またはy≒1)と、
前記GaNバッファ層(26)の反対側で、前記AlyGa1−yN層(28)上にあり、厚さが200〜230Åの範囲のAlxGa1−xNバリア層(0.25≦x≦0.33)(30)と、
前記GaNバッファ層(26)と前記AlyGa1−yN層(28)との間のインターフェースにある2DEG(38)と、
Al x Ga 1−x Nバリア層(30)上に設けられたソース・コンタクト、ドレイン・コンタクト、及びゲート・コンタクト(32、34、36)と
からなることを特徴とする高電子移動度トランジスタ。 - 請求項1記載のHEMTにおいて、該HEMTは更に、前記GaNバッファ層(26)に隣接して、前記AlyGa1−yN層(28)の反対側に基板(22)を備えており、前記基板(22)が、サファイア、炭化珪素、窒化ガリウム、及びシリコンからなる群からの材料で作られていることを特徴とするHEMT。
- 請求項2記載のHEMTにおいて、該HEMTは更に、前記GaNバッファ層(26)と前記基板(22)との間に、核生成層(24)を備えていることを特徴とするHEMT。
- 請求項1記載のHEMTにおいて、前記ゲート・コンタクト(36)の下の抵抗は、前記ソース及び前記ドレイン・コンタクト(32、34)の下の抵抗よりも大きいことを特徴とするHEMT。
- 請求項4記載のHEMTにおいて、前記Al x Ga 1−x Nバリア層(30)は、前記ゲート・コンタクト(36)の下では薄くなっていることを特徴とするHEMT。
- 請求項1記載のHEMTにおいて、前記AlxGa1−xNバリア層(30)及び前記AlyGa1−yN層(28)は、ディジタル的に製作されることを特徴とするHEMT。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29019501P | 2001-05-11 | 2001-05-11 | |
US60/290,195 | 2001-05-11 | ||
US10/102,272 US6849882B2 (en) | 2001-05-11 | 2002-03-19 | Group-III nitride based high electron mobility transistor (HEMT) with barrier/spacer layer |
US10/102,272 | 2002-03-19 | ||
PCT/US2002/011666 WO2002093650A1 (en) | 2001-05-11 | 2002-04-11 | Group-iii nitride based high electron mobility transistor (hemt) with barrier/spacer layer |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012081708A Division JP2012156538A (ja) | 2001-05-11 | 2012-03-30 | 高電子移動度トランジスタ(hemt) |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005509274A JP2005509274A (ja) | 2005-04-07 |
JP5004403B2 true JP5004403B2 (ja) | 2012-08-22 |
Family
ID=26799210
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002590421A Expired - Lifetime JP5004403B2 (ja) | 2001-05-11 | 2002-04-11 | 高電子移動度トランジスタ(hemt) |
JP2012081708A Pending JP2012156538A (ja) | 2001-05-11 | 2012-03-30 | 高電子移動度トランジスタ(hemt) |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012081708A Pending JP2012156538A (ja) | 2001-05-11 | 2012-03-30 | 高電子移動度トランジスタ(hemt) |
Country Status (9)
Country | Link |
---|---|
US (1) | US6849882B2 (ja) |
EP (3) | EP2282346B1 (ja) |
JP (2) | JP5004403B2 (ja) |
KR (1) | KR100869521B1 (ja) |
CN (1) | CN100373632C (ja) |
CA (1) | CA2447058C (ja) |
MY (1) | MY128473A (ja) |
TW (1) | TW579600B (ja) |
WO (1) | WO2002093650A1 (ja) |
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