JP5501618B2 - 高電子移動トランジスタ(hemt)、半導体デバイスおよびその製造方法 - Google Patents
高電子移動トランジスタ(hemt)、半導体デバイスおよびその製造方法 Download PDFInfo
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- 229910000807 Ga alloy Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
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- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910004205 SiNX Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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- 239000004020 conductor Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
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- 150000004678 hydrides Chemical class 0.000 description 1
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- 229910052738 indium Inorganic materials 0.000 description 1
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- 229910052905 tridymite Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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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
- 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
- H01L29/207—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 further characterised by the doping material
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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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66446—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET]
- H01L29/66462—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET] with a heterojunction interface channel or gate, e.g. HFET, HIGFET, SISFET, HJFET, HEMT
-
- 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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- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/402—Field plates
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- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Junction Field-Effect Transistors (AREA)
Description
Claims (12)
- バッファ層と、
前記バッファ層の上のバリア層と、
前記バッファ層と前記バリア層との界面における2次元電子ガス(2DEG)と、
ゲート、ソースコンタクトおよびドレインコンタクトと、
前記バリア層の中の負イオン領域と
を備え、
前記ソースコンタクトと前記ドレインコンタクトの間に前記ゲートがあり、
前記負イオン領域は、主として前記ゲートの下方において存在するとともに、前記ゲートの端を超えて存在するように、前記バッファ層の中に広がっていることを特徴とする高電子移動度トランジスタ(HEMT)。 - 前記バッファ層および前記バリア層は、III族窒化物材料により作られ、
前記負イオン領域は、フッ素イオンを備えることを特徴とする請求項1に記載のHEMT。 - 前記負イオン領域は、前記ゲートおよび前記ドレインコンタクトの間の位置に置かれることを特徴とする請求項1に記載のHEMT。
- 前記負イオン領域には、負イオン濃度が異なる部分がある請求項1に記載のHEMT。
- フィールドプレートをさらに備えることを特徴とする請求項1に記載のHEMT。
- 半導体ベースのデバイスであって、
動作時電(E)界がかかる複数の活性半導体層であって、バッファ層の上のバリア層を含む複数の活性半導体層と、
少なくとも前記バリア層の中に存在する負イオン領域であって、主としてゲートの下方において存在するとともに、前記ゲートの端を超えて存在する負イオン領域と
を備えることを特徴とする半導体デバイス。 - III族窒化物ベースのバッファ層と、
前記バッファ層の上の、III族窒化物ベースのバリア層と、
前記バッファ層と前記バリア層とのヘテロ界面における2次元電子ガス(2DEG)と、
前記バリア層の上のソースコンタクトおよびドレインコンタクトと、
前記ソースコンタクトと前記ドレインコンタクトとの間の前記バリア層の上のゲートと、
前記バリア層の下に配置されており、前記バリア層の中に広がっており、かつ前記ゲートの端から前記ドレインへ広がっている、HEMTの中のフッ素負イオン領域と
を備えることを特徴とする高電子移動度トランジスタ(HEMT)。 - 半導体デバイスを製造する方法であって、
基板を設けるステップと、
前記基板の上に、バッファ層とバリア層とを含むエピタキシャル層を成長させるステップと、
前記エピタキシャル層の中に負イオンを導入し、前記バッファ層及び前記バリア層の中に負イオン領域を形成するステップと、
前記バリア層上及び前記負イオン領域の少なくとも一部分の上にゲートを形成するステップであって、前記負イオン領域が、少なくとも部分的に、前記ゲートの下方において及び前記ゲートの端を超えて存在するステップと
を備えることを特徴とする方法。 - 前記エピタキシャル層の上にコンタクトを堆積させるステップをさらに備えることを特徴とする請求項8に記載の方法。
- 前記負イオンは、エッチングシステムにおけるプラズマ処理を用いて前記エピタキシャル層の中に導入されることを特徴とする請求項8に記載の方法。
- 前記エピタキシャル層は、III族窒化物材料により作られ、
前記負イオンは、フッ素イオンを備えることを特徴とする請求項8に記載の方法。 - 前記半導体デバイスは、高電子移動度トランジスタ(HEMT)を備えることを特徴とする請求項8に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US71505705P | 2005-09-07 | 2005-09-07 | |
US60/715,057 | 2005-09-07 | ||
PCT/US2006/026405 WO2008027027A2 (en) | 2005-09-07 | 2006-07-07 | Transistor with fluorine treatment |
Publications (2)
Publication Number | Publication Date |
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JP2009507396A JP2009507396A (ja) | 2009-02-19 |
JP5501618B2 true JP5501618B2 (ja) | 2014-05-28 |
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JP2008532215A Active JP5501618B2 (ja) | 2005-09-07 | 2006-07-07 | 高電子移動トランジスタ(hemt)、半導体デバイスおよびその製造方法 |
Country Status (5)
Country | Link |
---|---|
US (3) | US7638818B2 (ja) |
EP (3) | EP2312635B1 (ja) |
JP (1) | JP5501618B2 (ja) |
TW (1) | TW200715570A (ja) |
WO (1) | WO2008027027A2 (ja) |
Cited By (1)
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WO2022120072A1 (en) * | 2020-12-02 | 2022-06-09 | Analog Devices, Inc. | Compound semiconductor devices with a conductive component to control electrical characteristics |
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WO2008027027A2 (en) | 2005-09-07 | 2008-03-06 | Cree, Inc | Transistor with fluorine treatment |
WO2007059220A2 (en) * | 2005-11-15 | 2007-05-24 | The Regents Of The University Of California | Methods to shape the electric field in electron devices, passivate dislocations and point defects, and enhance the luminescence efficiency of optical devices |
US8044432B2 (en) * | 2005-11-29 | 2011-10-25 | The Hong Kong University Of Science And Technology | Low density drain HEMTs |
US7972915B2 (en) * | 2005-11-29 | 2011-07-05 | The Hong Kong University Of Science And Technology | Monolithic integration of enhancement- and depletion-mode AlGaN/GaN HFETs |
US7932539B2 (en) * | 2005-11-29 | 2011-04-26 | The Hong Kong University Of Science And Technology | Enhancement-mode III-N devices, circuits, and methods |
JP4989085B2 (ja) * | 2006-02-24 | 2012-08-01 | オンセミコンダクター・トレーディング・リミテッド | 半導体装置及びその製造方法 |
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JP5065616B2 (ja) * | 2006-04-21 | 2012-11-07 | 株式会社東芝 | 窒化物半導体素子 |
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JP5512287B2 (ja) * | 2007-02-22 | 2014-06-04 | フォルシュングスフェアブント ベルリン エー ファウ | 半導体素子およびその製造方法 |
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JP4691060B2 (ja) * | 2007-03-23 | 2011-06-01 | 古河電気工業株式会社 | GaN系半導体素子 |
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EP2312634B1 (en) | 2019-12-25 |
WO2008027027A3 (en) | 2008-05-15 |
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US7638818B2 (en) | 2009-12-29 |
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US7955918B2 (en) | 2011-06-07 |
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US8669589B2 (en) | 2014-03-11 |
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