JP5403527B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP5403527B2 JP5403527B2 JP2012522728A JP2012522728A JP5403527B2 JP 5403527 B2 JP5403527 B2 JP 5403527B2 JP 2012522728 A JP2012522728 A JP 2012522728A JP 2012522728 A JP2012522728 A JP 2012522728A JP 5403527 B2 JP5403527 B2 JP 5403527B2
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- 239000004065 semiconductor Substances 0.000 title claims description 102
- 229910052738 indium Inorganic materials 0.000 claims description 87
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 87
- 239000010949 copper Substances 0.000 claims description 86
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 81
- 239000011572 manganese Substances 0.000 claims description 69
- 229910052802 copper Inorganic materials 0.000 claims description 59
- 229910052748 manganese Inorganic materials 0.000 claims description 45
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 40
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 39
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 12
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 5
- 150000001879 copper Chemical class 0.000 claims 1
- 239000010936 titanium Substances 0.000 description 32
- 238000010438 heat treatment Methods 0.000 description 24
- 229910000914 Mn alloy Inorganic materials 0.000 description 23
- 230000015572 biosynthetic process Effects 0.000 description 19
- 239000010409 thin film Substances 0.000 description 18
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 16
- 239000000654 additive Substances 0.000 description 15
- 230000000996 additive effect Effects 0.000 description 15
- 229910052719 titanium Inorganic materials 0.000 description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 14
- 239000001301 oxygen Substances 0.000 description 14
- 229910052760 oxygen Inorganic materials 0.000 description 14
- 239000010408 film Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 239000011701 zinc Substances 0.000 description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 12
- 229910052725 zinc Inorganic materials 0.000 description 12
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 239000000470 constituent Substances 0.000 description 9
- 238000009826 distribution Methods 0.000 description 9
- 229910052733 gallium Inorganic materials 0.000 description 9
- 238000004544 sputter deposition Methods 0.000 description 9
- 239000013078 crystal Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 229910052750 molybdenum Inorganic materials 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 238000003917 TEM image Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 229910001195 gallium oxide Inorganic materials 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 229910017566 Cu-Mn Inorganic materials 0.000 description 4
- 229910017871 Cu—Mn Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- 238000005430 electron energy loss spectroscopy Methods 0.000 description 3
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000002173 high-resolution transmission electron microscopy Methods 0.000 description 2
- 229910003437 indium oxide Inorganic materials 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 239000013077 target material Substances 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910017945 Cu—Ti Inorganic materials 0.000 description 1
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 1
- 229910005265 GaInZnO Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910017278 MnxOy Inorganic materials 0.000 description 1
- 238000004125 X-ray microanalysis Methods 0.000 description 1
- 229910007541 Zn O Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- NWAIGJYBQQYSPW-UHFFFAOYSA-N azanylidyneindigane Chemical compound [In]#N NWAIGJYBQQYSPW-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- IUYOGGFTLHZHEG-UHFFFAOYSA-N copper titanium Chemical compound [Ti].[Cu] IUYOGGFTLHZHEG-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000000313 electron-beam-induced deposition Methods 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010406 interfacial reaction Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
-
- 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
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/45—Ohmic electrodes
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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
- H01L29/78—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
- H01L29/78606—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device
- H01L29/78618—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure
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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
- H01L29/78—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
- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/26—Materials of the light emitting region
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/36—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the electrodes
- H01L33/40—Materials therefor
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Electrodes Of Semiconductors (AREA)
- Thin Film Transistor (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Description
(1)インジウムを含む酸化物半導体材料からなる半導体層と、上記半導体層上に設けられ、当該半導体層とオーミック接合を有し、マンガンを含む銅、マンガンを含む銅合金又はマンガンと銅の積層の何れかからなるオーミック電極と、上記半導体層と上記オーミック電極との間に設けられた中間層と、を備え、上記中間層は、半導体層の内部よりもインジウムの原子濃度を大とする第1の領域と、その第1の領域よりもインジウムの原子濃度を小とする第2の領域とを有している、ことを特徴とする半導体装置。
(2)(1)において、上記第1および第2の領域は、オーミック電極を構成する金属の酸化物を含めて構成されている半導体装置。
(3)(1)または(2)において、上記マンガンの電子価は、第2の領域から第1の領域に向けて増加している半導体装置。
(4)(1)から(3)の何れかにおいて、上記マンガンの電子濃度は、上記第2の領域で最大値を示し、第1の領域では第2の領域より低くなっている半導体装置。
(5)(1)から(4)の何れかにおいて、上記第2の領域は、第1の領域より多量の銅が含まれている半導体装置。
その他の例示する手段は、以下のとおりである。
上記第1の領域は半導体層に接して配置され、上記第2の領域はオーミック電極に接して配置されている半導体装置。
上記第1の領域はインジウム(In)を含む結晶粒から構成されている半導体装置。
上記第2の領域は非晶質から構成されている半導体装置。
上記第1及び第2の領域を合わせた中間層の層厚は、3nm以上30nm以下である半導体装置。
上記第1および第2の領域は、オーミック電極を構成する金属の酸化物を含めて構成されている半導体装置。
上記オーミック電極を構成する金属は、インジウムよりも酸化物形成自由エネルギーを小さい値とする金属である半導体装置。
上記オーミック電極を構成する金属は、マンガン(Mn)、モリブデン(Mo)、チタン(Ti)の少なくともいずれか一つを含む半導体装置。
上記オーミック電極を構成する金属は、マンガンを含む半導体装置。
上記マンガンの電子価は、第2の領域から第1の領域に向けて増加している半導体装置。
上記マンガンの原子濃度は、上記第2の領域で最大値を示し、第1の領域では第2の領域より低くなっている半導体装置。
上記オーミック電極を構成する金属はチタンを含む半導体装置。
上記チタンの電子価は、第2の領域から第1の領域に向けて増加している半導体装置。
上記第1および第2の領域の酸素濃度は、半導体層の酸素濃度より低い半導体装置。
上記オーミック電極は銅を主要構成元素とする銅合金から構成されている半導体装置。
上記第2の領域は、第1の領域よりも多量の銅が含まれている半導体装置。
本発明の内容を、導電性のn形インジウム含有酸化物半導体層に銅・マンガン合金を電極素材として形成する場合を例にして説明する。
上記実施例1において、銅・マンガン合金を純銅(純度99.9999%)に代えて、同じ条件で実験を行った。銅(108)とIGZO(103)の界面近傍を断面TEMによって観察した結果を図7に示す。250℃で1時間の熱処理を行ったにも拘わらず、界面反応による中間層の形成は確認されない。また、密着性を調べるために、スコッチテープを銅薄膜表面に貼り付けて剥がしたところ、テープの粘着面に銅薄膜が付着しており、銅とIGZOの密着性が乏しいことが明らかになった。また、電極列を形成して電極間の電流−電圧を測定した結果を図8に示す。否直線的な関係が得られ、図5に示した銅・マンガン合金と比較すると、傾きが緩やかであり、界面接触抵抗が高抵抗であることを示している。
上記実施例1において、銅・マンガン合金をチタンに代えて、同じ条件で実験を行った。チタンとIGZOの界面近傍をTEMによって観察した結果を図9に示す。250℃で1時間の熱処理をしているので、Ti層207とIGZO層203が反応し、中間層206を形成している。この中間層206は、銅・マンガン合金の場合と同様に、第1の領域206aと第2の領域206bから構成されている。第1の領域206aは微細な結晶粒からなっており、第2の領域206bは均一なコントラストを示す非晶質からなっていることがわかる。
101 シリコン基板
102 二酸化珪素(SiO2)層
103 酸化インンジウム・ガリウム・亜鉛(IGZO)酸化物半導体層
104 銅・マンガン合金層
105 二酸化珪素(SiO2)層
106 中間層
106a 中間層をなす第1の領域
106b 中間層をなす第2の領域
107 銅・マンガン合金層より形成された銅層、電極本体
108 純銅層
203 酸化インンジウム・ガリウム・亜鉛酸化物半導体層、IGZO層
206 中間層
206a 中間層をなす第1の領域
206b 中間層をなす第2の領域
207 チタン層
Claims (5)
- インジウムを含む酸化物半導体材料からなる半導体層と、
上記半導体層上に設けられ、当該半導体層とオーミック接合を有し、マンガンを含む銅、マンガンを含む銅合金又はマンガンと銅の積層の何れかからなるオーミック電極と、
上記半導体層と上記オーミック電極との間に設けられた中間層と、を備え、
上記中間層は、半導体層の内部よりもインジウムの原子濃度を大とする第1の領域と、その第1の領域よりもインジウムの原子濃度を小とする第2の領域とを有している、ことを特徴とする半導体装置。 - 上記第1および第2の領域は、オーミック電極を構成する金属の酸化物を含めて構成されている、請求項1に記載の半導体装置。
- 上記マンガンの電子価は、第2の領域から第1の領域に向けて増加している、請求項1または2に記載の半導体装置。
- 上記マンガンの電子濃度は、上記第2の領域で最大値を示し、第1の領域では第2の領域より低くなっている、請求項1から3の何れか1項に記載の半導体装置。
- 上記第2の領域は、第1の領域より多量の銅が含まれている、請求項1から4の何れか1項に記載の半導体装置。
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JP5912046B2 (ja) * | 2012-01-26 | 2016-04-27 | 株式会社Shカッパープロダクツ | 薄膜トランジスタ、その製造方法および該薄膜トランジスタを用いた表示装置 |
KR102056407B1 (ko) * | 2012-05-09 | 2019-12-16 | 아이엠이씨 브이제트더블유 | 금속 산화물 반도체층의 전기 전도도를 증가시키기 위한 방법 |
WO2013180040A1 (en) * | 2012-05-31 | 2013-12-05 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device |
KR20240001283A (ko) | 2012-09-13 | 2024-01-03 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 표시 장치 |
JP6193786B2 (ja) * | 2013-03-14 | 2017-09-06 | 株式会社半導体エネルギー研究所 | 半導体装置及びその作製方法 |
US10304859B2 (en) | 2013-04-12 | 2019-05-28 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device having an oxide film on an oxide semiconductor film |
TW201523877A (zh) * | 2013-11-29 | 2015-06-16 | Semiconductor Energy Lab | 半導體裝置、半導體裝置的製造方法以及顯示裝置 |
US20150155313A1 (en) | 2013-11-29 | 2015-06-04 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device |
US9882014B2 (en) | 2013-11-29 | 2018-01-30 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
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JP6402017B2 (ja) | 2013-12-26 | 2018-10-10 | 株式会社半導体エネルギー研究所 | 半導体装置 |
KR102306200B1 (ko) * | 2014-01-24 | 2021-09-30 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치 |
JP6444745B2 (ja) * | 2015-01-22 | 2018-12-26 | 東芝メモリ株式会社 | 半導体装置及びその製造方法 |
US10734529B2 (en) | 2016-01-29 | 2020-08-04 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and display device including the semiconductor device |
CN106847890B (zh) * | 2017-02-17 | 2019-10-25 | 京东方科技集团股份有限公司 | 氧化物薄膜晶体管及其制备方法、阵列基板、显示面板 |
KR20210065186A (ko) * | 2018-10-09 | 2021-06-03 | 마이크론 테크놀로지, 인크 | 이종 채널을 포함하는 트랜지스터 및 관련 디바이스, 전자 시스템 및 방법 |
CN111640836A (zh) * | 2020-06-18 | 2020-09-08 | 佛山紫熙慧众科技有限公司 | GaN基LED器件电极结构及LED器件 |
JP2022146576A (ja) | 2021-03-22 | 2022-10-05 | キオクシア株式会社 | 半導体装置及び半導体記憶装置 |
KR20220149880A (ko) * | 2021-04-30 | 2022-11-09 | 삼성디스플레이 주식회사 | 표시 장치 및 그 제조 방법 |
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