JP2015162615A - 水素拡散障壁を備える半導体デバイス及びその製作方法 - Google Patents
水素拡散障壁を備える半導体デバイス及びその製作方法 Download PDFInfo
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 125
- 239000001257 hydrogen Substances 0.000 title claims abstract description 117
- 238000009792 diffusion process Methods 0.000 title claims abstract description 79
- 230000004888 barrier function Effects 0.000 title claims abstract description 78
- 239000004065 semiconductor Substances 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 125000004435 hydrogen atom Chemical class [H]* 0.000 title abstract description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 36
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 36
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000137 annealing Methods 0.000 claims abstract description 19
- 229910003564 SiAlON Inorganic materials 0.000 claims abstract 3
- 150000002431 hydrogen Chemical class 0.000 claims description 71
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 42
- 230000000903 blocking effect Effects 0.000 claims description 25
- 229910052710 silicon Inorganic materials 0.000 claims description 24
- 239000010703 silicon Substances 0.000 claims description 21
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 18
- 230000005641 tunneling Effects 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 9
- 150000004767 nitrides Chemical class 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000005240 physical vapour deposition Methods 0.000 claims description 4
- 238000004544 sputter deposition Methods 0.000 claims description 3
- 238000007740 vapor deposition Methods 0.000 claims description 2
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000004549 pulsed laser deposition Methods 0.000 description 17
- 229910004298 SiO 2 Inorganic materials 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000003795 desorption Methods 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000003917 TEM image Methods 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 229910018516 Al—O Inorganic materials 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 3
- 229910007991 Si-N Inorganic materials 0.000 description 2
- 229910006294 Si—N Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- -1 and at the same time Chemical group 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005527 interface trap Effects 0.000 description 2
- 238000010884 ion-beam technique Methods 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 1
- 229910008065 Si-SiO Inorganic materials 0.000 description 1
- 229910006405 Si—SiO Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001659 ion-beam spectroscopy Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004452 microanalysis Methods 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
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- 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
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/268—Bombardment with radiation with high-energy radiation using electromagnetic radiation, e.g. laser radiation
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28194—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation by deposition, e.g. evaporation, ALD, CVD, sputtering, laser deposition
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28211—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation in a gaseous ambient using an oxygen or a water vapour, e.g. RTO, possibly through a layer
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- 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
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/4234—Gate electrodes for transistors with charge trapping gate insulator
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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
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/51—Insulating materials associated therewith
- H01L29/511—Insulating materials associated therewith with a compositional variation, e.g. multilayer structures
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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
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
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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
- H01L29/792—Field effect transistors with field effect produced by an insulated gate with charge trapping gate insulator, e.g. MNOS-memory transistors
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- Toxicology (AREA)
- Non-Volatile Memory (AREA)
- Semiconductor Memories (AREA)
- Electrodes Of Semiconductors (AREA)
- Formation Of Insulating Films (AREA)
Abstract
Description
前記水素拡散障壁はアモルファスであってもよい。
前記半導体デバイスは不揮発性電荷トラップ型メモリデバイスであってもよい。
前記水素拡散障壁は層の形状で形成されてもよい。
前記水素拡散障壁の層の厚さは1〜3nmでもよい。
前記水素拡散障壁の層は酸化アルミニウム層と窒化シリコン層との間に挟まれていてもよい。
前記酸化シリコン層は前記窒化シリコン層の水素拡散障壁層と反対側の表面上に設けてもよい。
前記酸化シリコン層はトンネリング酸化物層であってよく、前記酸化アルミニウム層はブロッキング酸化物層であってよい。
ゲート電極をブロッキング酸化物層の水素拡散障壁と反対側の表面上に設けてよく、シリコン基板をトンネリング酸化物層の窒化物層と反対側の表面上に設けてよく、この前記基板はソース及びドレインを備える。
本発明の別の側面によれば、互いに接触している窒化シリコンと酸化アルミニウムとを熱アニールすることによって前記水素拡散障壁が製作される、上記の半導体デバイスのいずれか1つを製作する方法が提供される。
前記熱アニールは水素及び窒素の混合物又は窒素の雰囲気下で行ってよい。
前記熱アニールは600〜900℃の温度で行ってよい。
本発明のさらに別の側面によれば、前記水素拡散障壁が物理的蒸着によって製作される、上記の半導体デバイスのいずれか1つを製作する方法が提供される。
前記物理的蒸着はパルスレーザ蒸着又はスパッタリングでよい。
2)レーザー周波数:5Hz
3)P(O2)分圧:1×10−5Torr
4)基板温度:300℃
5)ターゲットと基板との間の距離:50mm
6)装置:パルスレーザ蒸着システム[Pascal Technologiesから購入]
7)ターゲット:株式会社高純度化学研究所によって製造された、直径20mmで純度が少なくとも99.9%のSi3N4及びAl2O3
Claims (14)
- 水素拡散障壁にSiAlONを含有する水素拡散障壁を備えた半導体デバイス。
- 前記水素拡散障壁がアモルファスである、請求項1に記載の半導体デバイス。
- 不揮発性電荷トラップ型メモリデバイスである、請求項1又は2に記載の半導体デバイス。
- 前記水素拡散障壁が層の形状で形成される、請求項1〜3のいずれか一項に記載の半導体デバイス。
- 前記水素拡散障壁の層の厚さが1〜3nmである、請求項4に記載の半導体デバイス。
- 前記水素拡散障壁の層が酸化アルミニウム層と窒化シリコン層との間に挟まれている、請求項4又は5に記載の半導体デバイス。
- 前記酸化シリコン層が前記窒化シリコン層の前記水素拡散障壁層と反対側の表面上に設けられる、請求項6に記載の半導体デバイス。
- 前記酸化シリコン層がトンネリング酸化物層であり、前記酸化アルミニウム層がブロッキング酸化物層である、請求項7に記載の半導体デバイス。
- ゲート電極が前記ブロッキング酸化物層の前記水素拡散障壁と反対側の表面上に設けられ、シリコン基板が前記トンネリング酸化物層の前記窒化物層と反対側の表面上に設けられ、前記基板がソース及びドレインを備える、請求項8に記載の半導体デバイス。
- 前記水素拡散障壁が互いに接している窒化シリコンと酸化アルミニウムとを熱アニールすることによって製作される、請求項1〜9のいずれか一項に記載の半導体デバイスを製作する方法。
- 前記熱アニールが水素及び窒素の混合ガス又は窒素ガスの雰囲気下で行われる、請求項10に記載の半導体デバイスを製作する方法。
- 前記熱アニールが600〜900℃の温度で行われる、請求項10又は11に記載の半導体デバイスを製作する方法。
- 前記水素拡散障壁が物理的蒸着によって作製される、請求項1〜9のいずれか一項に記載の半導体デバイスを製作する方法。
- 前記物理的蒸着がパルスレーザ蒸着又はスパッタリングである、請求項13に記載の半導体を製作する方法。
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PCT/JP2015/001013 WO2015129279A1 (en) | 2014-02-28 | 2015-02-26 | Semiconductor device comprising a hydrogen diffusion barrier and method of fabricating same |
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Cited By (2)
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JP2017059599A (ja) * | 2015-09-14 | 2017-03-23 | 株式会社東芝 | 半導体装置 |
JP2020031235A (ja) * | 2019-11-19 | 2020-02-27 | 株式会社東芝 | 半導体装置 |
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CN110867376A (zh) * | 2019-11-25 | 2020-03-06 | 上海华力集成电路制造有限公司 | 用于改善半导体应变器件nbti的方法和结构 |
CN116344478A (zh) | 2021-12-24 | 2023-06-27 | 长鑫存储技术有限公司 | 一种半导体结构及半导体结构的制备方法 |
Citations (11)
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