JP4751150B2 - 窒化物系半導体装置 - Google Patents
窒化物系半導体装置 Download PDFInfo
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- JP4751150B2 JP4751150B2 JP2005252657A JP2005252657A JP4751150B2 JP 4751150 B2 JP4751150 B2 JP 4751150B2 JP 2005252657 A JP2005252657 A JP 2005252657A JP 2005252657 A JP2005252657 A JP 2005252657A JP 4751150 B2 JP4751150 B2 JP 4751150B2
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- layer
- carrier
- semiconductor device
- barrier layer
- gate electrode
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
- H10D62/85—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group III-V materials, e.g. GaAs
- H10D62/8503—Nitride Group III-V materials, e.g. AlN or GaN
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/015—Manufacture or treatment of FETs having heterojunction interface channels or heterojunction gate electrodes, e.g. HEMT
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/40—FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels
- H10D30/47—FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels having 2D charge carrier gas channels, e.g. nanoribbon FETs or high electron mobility transistors [HEMT]
- H10D30/471—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT]
- H10D30/475—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT] having wider bandgap layer formed on top of lower bandgap active layer, e.g. undoped barrier HEMTs such as i-AlGaN/GaN HEMTs
- H10D30/4755—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT] having wider bandgap layer formed on top of lower bandgap active layer, e.g. undoped barrier HEMTs such as i-AlGaN/GaN HEMTs having wide bandgap charge-carrier supplying layers, e.g. modulation doped HEMTs such as n-AlGaAs/GaAs HEMTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/111—Field plates
- H10D64/117—Recessed field plates, e.g. trench field plates or buried field plates
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/512—Disposition of the gate electrodes, e.g. buried gates
- H10D64/513—Disposition of the gate electrodes, e.g. buried gates within recesses in the substrate, e.g. trench gates, groove gates or buried gates
Landscapes
- Junction Field-Effect Transistors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Description
2 障壁層
3 閾値制御層
4 キャリア誘起層
5 ゲート電極
6 ソース電極
7 ドレイン電極
8 絶縁膜
9 フィールドプレート電極
10,10a,10b ゲート絶縁膜
Claims (4)
- ノンドープのAlxGa1-XN(0≦X<1)からなるキャリア走行層と、
前記キャリア走行層上に形成され、前記キャリア走行層よりも格子定数の小さいノンドープまたはn型のAlYGa1-YN(0<Y≦1、X<Y)からなる障壁層と、
前記障壁層上に形成され、前記キャリア走行層と格子定数の等しいノンドープの窒化物半導体からなる閾値制御層と、
前記閾値制御層上に形成され、前記キャリア走行層よりも格子定数の小さいノンドープまたはn型の窒化物半導体からなるキャリア誘起層と、
ゲート電極形成領域における前記キャリア誘起層の全部と前記閾値制御層の一部を除去したリセス構造中に形成したゲート電極と、
前記ゲート電極を挟んだ前記障壁層、前記閾値制御層および前記キャリア誘起層のいずれかに形成されるソース電極およびドレイン電極と、
を備えることを特徴とする窒化物系半導体装置。 - 前記障壁層の厚さが、16.4×(1−1.27×(Y−X))/(Y−X)[Å]以下(ただし、Y−X<1/1.27)であることを特徴とする請求項1に記載の窒化物系半導体装置。
- 前記障壁層と前記キャリア誘起層の膜厚の合計が、16.4×(1−1.27×(Y−X))/(Y−X)[Å]以上(ただし、Y−X<1/1.27)であることを特徴とする請求項1または2に記載の窒化物系半導体装置。
- 前記ゲート電極、前記ソース電極および前記ドレイン電極を覆って形成される絶縁膜と、
少なくとも一方の端部は前記ゲート電極の前記ドレイン電極側の端部と前記ドレイン電極との間の前記絶縁膜上に位置し、前記ゲート電極または前記ソース電極に接続されるフィールドプレート電極と、
をさらに備えることを特徴とする請求項1〜3のいずれか1つに記載の窒化物系半導体装置。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005252657A JP4751150B2 (ja) | 2005-08-31 | 2005-08-31 | 窒化物系半導体装置 |
| US11/506,776 US20070045670A1 (en) | 2005-08-31 | 2006-08-21 | Nitride-based semiconductor device and method of manufacturing the same |
| US14/704,139 US10453926B2 (en) | 2005-08-31 | 2015-05-05 | Nitride-based semiconductor device and method of manufacturing the same |
| US16/567,038 US11393904B2 (en) | 2005-08-31 | 2019-09-11 | Nitride-based semiconductor device and method of manufacturing the same |
| US17/840,661 US12034051B2 (en) | 2005-08-31 | 2022-06-15 | Nitride-based semiconductor device and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005252657A JP4751150B2 (ja) | 2005-08-31 | 2005-08-31 | 窒化物系半導体装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007067240A JP2007067240A (ja) | 2007-03-15 |
| JP4751150B2 true JP4751150B2 (ja) | 2011-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005252657A Expired - Lifetime JP4751150B2 (ja) | 2005-08-31 | 2005-08-31 | 窒化物系半導体装置 |
Country Status (2)
| Country | Link |
|---|---|
| US (4) | US20070045670A1 (ja) |
| JP (1) | JP4751150B2 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11342428B2 (en) | 2017-07-07 | 2022-05-24 | Panasonic Holdings Corporation | Semiconductor device |
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| US11342428B2 (en) | 2017-07-07 | 2022-05-24 | Panasonic Holdings Corporation | Semiconductor device |
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| US20070045670A1 (en) | 2007-03-01 |
| US20220310797A1 (en) | 2022-09-29 |
| US20150236103A1 (en) | 2015-08-20 |
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