JP6004319B2 - 半導体装置および半導体装置の製造方法 - Google Patents
半導体装置および半導体装置の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 60
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 124
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 124
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 37
- 150000004767 nitrides Chemical class 0.000 claims description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- 239000010703 silicon Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 239000010931 gold Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910002601 GaN Inorganic materials 0.000 description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- -1 InN Chemical compound 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 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 adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7842—Field effect transistors with field effect produced by an insulated gate means for exerting mechanical stress on the crystal lattice of the channel region, e.g. using a flexible substrate
- H01L29/7848—Field effect transistors with field effect produced by an insulated gate means for exerting mechanical stress on the crystal lattice of the channel region, e.g. using a flexible substrate the means being located in the source/drain region, e.g. SiGe source and drain
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
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- 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
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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
- H01L29/7787—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 with wide bandgap charge-carrier supplying layer, e.g. direct single heterostructure MODFET
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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
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78681—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising AIIIBV or AIIBVI or AIVBVI semiconductor materials, or Se or Te
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- 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
Description
第1窒化シリコン膜32の成膜条件および好ましい成膜条件の範囲は以下の通りである。
「成膜条件」
成膜方法:プラズマCVD法
ガス:SiH4、N2、He
ガス流量:SiH4:50sccm、N2:300sccm、He:800sccm
圧力:0.5Torr
RF(Radio Frequency)電力:250W
温度:300℃
膜厚:50nm
ガス流量:SiH4:3〜60sccm、N2:100〜500sccm、He:500〜1000sccm
圧力:0.2〜2.0Torr
RF(Radio Frequency)電力:30〜300W
温度:200〜300℃
膜厚:10〜100nm
第2窒化シリコン膜34の成膜条件および好ましい成膜条件の範囲を以下の通りである。
「成膜条件」
成膜方法:プラズマCVD法
ガス:SiH4、NH3、N2、He
ガス流量:SiH4:5sccm、NH3:1sccm、N2:600sccm、He:500sccm
圧力:0.9Torr
RF(Radio Frequency)電力:50W
温度:300℃
膜厚:350nm
ガス流量:SiH4:3〜60sccm、NH3:0.5〜5sccm、N2:100〜2000sccm、He:0〜600sccm
圧力:0.2〜1.8Torr
RF(Radio Frequency)電力:30〜300W
温度:200〜300℃
膜厚:200〜600nm
11 窒化物半導体層
20 ゲート電極
22 ソース電極
24 ドレイン電極
29 シールド電極
30 絶縁膜
32 第1窒化シリコン膜
34 第2窒化シリコン膜
Claims (6)
- 基板上の窒化物半導体層上に形成されたゲート電極並びに前記ゲート電極を挟むソース電極およびドレイン電極と、
前記ゲート電極および前記窒化物半導体層を覆ってなる窒素に対するシリコンの組成比が0.75より大きく、前記基板を圧縮させる応力を有する第1窒化シリコン膜と、
前記第1窒化シリコン膜上に形成された窒素に対するシリコンの組成比が0.75より大きく、前記基板を引っ張らせる応力を有する第2窒化シリコン膜と、を有し、
前記第1窒化シリコン膜および前記第2窒化シリコン膜の積層構造全体では前記基板を引っ張らせる応力を有してなることを特徴とする半導体装置。 - 前記ゲート電極は、ニッケルを含む部分を備え、前記ニッケルを含む部分が前記第1窒化シリコン膜によって覆われてなることを特徴とする請求項1記載の半導体装置。
- 前記第2窒化シリコン膜上に形成された金属層を有することを特徴とする請求項2記載の半導体装置
- 前記第1窒化シリコン膜および前記第2窒化シリコン膜の窒素に対するシリコンの組成比は、0.8以上であることを特徴とする請求項1記載の半導体装置。
- 窒化物半導体層上に窒素に対するシリコンの組成比が0.75より大きい第1窒化シリコン膜を形成する工程と、
前記第1窒化シリコン膜上に窒素に対するシリコンの組成比が0.75より大きい第2窒化シリコン膜を形成する工程と、を具備し、
前記第1窒化シリコン膜および前記第2窒化シリコン膜はプラズマ成長によって形成されたものであり、前記第1窒化シリコン膜の成長ガスの総流量に対するHeの流量は、前記第2窒化シリコン膜の成長ガスの総流量に対するHeの流量に比べて大きく、かつ前記第1窒化シリコン膜および前記第2窒化シリコン膜の積層構造全体では引っ張り応力を有することを特徴とする半導体装置の製造方法。 - 前記第2窒化シリコン膜を形成する工程は、窒素原料ガスにNH 3 を添加する請求項5に記載の半導体装置の製造方法。
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JP2012087764A JP6004319B2 (ja) | 2012-04-06 | 2012-04-06 | 半導体装置および半導体装置の製造方法 |
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JP6197344B2 (ja) * | 2013-04-18 | 2017-09-20 | 住友電気工業株式会社 | 半導体装置 |
US9761438B1 (en) * | 2014-05-08 | 2017-09-12 | Hrl Laboratories, Llc | Method for manufacturing a semiconductor structure having a passivated III-nitride layer |
JP6258148B2 (ja) | 2014-08-05 | 2018-01-10 | 株式会社東芝 | 半導体装置 |
CN105118785A (zh) * | 2015-09-02 | 2015-12-02 | 深圳大学 | 一种氮化镓异质结场效应晶体管及其形成方法 |
CN105304722B (zh) * | 2015-09-24 | 2018-09-04 | 京东方科技集团股份有限公司 | 一种薄膜晶体管及其制备方法、显示基板、显示装置 |
JP6536318B2 (ja) * | 2015-09-24 | 2019-07-03 | 三菱電機株式会社 | 半導体装置及びその製造方法 |
CN105470310A (zh) | 2016-01-21 | 2016-04-06 | 京东方科技集团股份有限公司 | 一种薄膜晶体管及其制作方法、阵列基板和显示装置 |
DE102017127182A1 (de) * | 2017-11-17 | 2019-05-23 | Forschungsverbund Berlin E.V. | Gate-Struktur und Verfahren zu deren Herstellung |
CN111937125A (zh) * | 2018-04-13 | 2020-11-13 | 三菱电机株式会社 | 场效应型晶体管 |
JP7139774B2 (ja) * | 2018-08-16 | 2022-09-21 | 富士通株式会社 | 化合物半導体装置、化合物半導体装置の製造方法及び増幅器 |
US10707322B2 (en) * | 2018-10-22 | 2020-07-07 | Vanguard International Semiconductor Corporation | Semiconductor devices and methods for fabricating the same |
JP7163806B2 (ja) * | 2019-02-05 | 2022-11-01 | 富士通株式会社 | 化合物半導体装置、化合物半導体装置の製造方法及び増幅器 |
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US5041888A (en) * | 1989-09-18 | 1991-08-20 | General Electric Company | Insulator structure for amorphous silicon thin-film transistors |
JP5125512B2 (ja) * | 2005-09-30 | 2013-01-23 | 日本電気株式会社 | 電界効果トランジスタ |
KR20080008562A (ko) * | 2006-07-20 | 2008-01-24 | 삼성전자주식회사 | 어레이 기판의 제조방법, 어레이 기판 및 이를 갖는표시장치 |
JP2008140854A (ja) * | 2006-11-30 | 2008-06-19 | Matsushita Electric Ind Co Ltd | 半導体装置及びその製造方法 |
JP2008305894A (ja) | 2007-06-06 | 2008-12-18 | Mitsubishi Electric Corp | 半導体装置及びその製造方法 |
JP4719210B2 (ja) * | 2007-12-28 | 2011-07-06 | 富士通株式会社 | 半導体装置及びその製造方法 |
JP5472293B2 (ja) * | 2009-04-20 | 2014-04-16 | 富士通株式会社 | 化合物半導体装置及びその製造方法 |
JP5595685B2 (ja) * | 2009-07-28 | 2014-09-24 | パナソニック株式会社 | 半導体装置 |
JP5602450B2 (ja) * | 2010-02-12 | 2014-10-08 | 三菱電機株式会社 | 薄膜トランジスタ、その製造方法、及び表示装置 |
JP5649347B2 (ja) * | 2010-07-20 | 2015-01-07 | 住友電工デバイス・イノベーション株式会社 | 半導体装置 |
JP2012164869A (ja) * | 2011-02-08 | 2012-08-30 | Renesas Electronics Corp | 半導体装置およびその製造方法 |
JP5776217B2 (ja) * | 2011-02-24 | 2015-09-09 | 富士通株式会社 | 化合物半導体装置 |
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