JP6586328B2 - 被処理体を処理する方法 - Google Patents
被処理体を処理する方法 Download PDFInfo
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- JP6586328B2 JP6586328B2 JP2015174978A JP2015174978A JP6586328B2 JP 6586328 B2 JP6586328 B2 JP 6586328B2 JP 2015174978 A JP2015174978 A JP 2015174978A JP 2015174978 A JP2015174978 A JP 2015174978A JP 6586328 B2 JP6586328 B2 JP 6586328B2
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- 238000000034 method Methods 0.000 title claims description 179
- 238000012545 processing Methods 0.000 title claims description 133
- 239000007789 gas Substances 0.000 claims description 359
- 230000008569 process Effects 0.000 claims description 134
- 230000005291 magnetic effect Effects 0.000 claims description 125
- 230000004888 barrier function Effects 0.000 claims description 36
- 239000001257 hydrogen Substances 0.000 claims description 29
- 229910052739 hydrogen Inorganic materials 0.000 claims description 29
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 28
- 238000005530 etching Methods 0.000 claims description 28
- 239000001301 oxygen Substances 0.000 claims description 28
- 229910052760 oxygen Inorganic materials 0.000 claims description 28
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 26
- 230000036961 partial effect Effects 0.000 claims description 17
- 229910003321 CoFe Inorganic materials 0.000 claims description 12
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 47
- 238000012546 transfer Methods 0.000 description 29
- 239000004020 conductor Substances 0.000 description 24
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 24
- 238000001514 detection method Methods 0.000 description 18
- 239000000758 substrate Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 16
- 230000008859 change Effects 0.000 description 15
- 230000002829 reductive effect Effects 0.000 description 15
- 230000007423 decrease Effects 0.000 description 13
- 238000005280 amorphization Methods 0.000 description 9
- 239000013078 crystal Substances 0.000 description 9
- 125000004429 atom Chemical group 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 238000012935 Averaging Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000006722 reduction reaction Methods 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- UNYOJUYSNFGNDV-UHFFFAOYSA-M magnesium monohydroxide Chemical compound [Mg]O UNYOJUYSNFGNDV-UHFFFAOYSA-M 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 229910052742 iron Chemical group 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 101100206195 Arabidopsis thaliana TCP2 gene Proteins 0.000 description 2
- 101000666730 Homo sapiens T-complex protein 1 subunit alpha Proteins 0.000 description 2
- 101100536570 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) CCT2 gene Proteins 0.000 description 2
- 102100038410 T-complex protein 1 subunit alpha Human genes 0.000 description 2
- 239000002885 antiferromagnetic material Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LKJPSUCKSLORMF-UHFFFAOYSA-N Monolinuron Chemical compound CON(C)C(=O)NC1=CC=C(Cl)C=C1 LKJPSUCKSLORMF-UHFFFAOYSA-N 0.000 description 1
- 229910019041 PtMn Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- SHMWNGFNWYELHA-UHFFFAOYSA-N iridium manganese Chemical compound [Mn].[Ir] SHMWNGFNWYELHA-UHFFFAOYSA-N 0.000 description 1
- IGOJMROYPFZEOR-UHFFFAOYSA-N manganese platinum Chemical compound [Mn].[Pt] IGOJMROYPFZEOR-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
- C23C16/4408—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber by purging residual gases from the reaction chamber or gas lines
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/505—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges
- C23C16/509—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges using internal electrodes
- C23C16/5096—Flat-bed apparatus
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- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32192—Microwave generated discharge
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- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
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- H01J37/32449—Gas control, e.g. control of the gas flow
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- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32733—Means for moving the material to be treated
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- H01L21/02107—Forming insulating materials on a substrate
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- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02274—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
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- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
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Description
[工程ST3における成膜条件]
マイクロ波のパワー:0.5[kW]以上4[kW]以下。
チャンバ12の内圧(全圧):200[mTorr]以上1500[mTorr]以下。
処理温度(ステージ20の表面温度):30℃以上300℃以下。
SiH4ガスの流量:1[sccm]以上50[sccm]以下。
N2ガスの流量:1[sccm]以上50[sccm]以下。
Arガスの流量:50[sccm]以上3000[sccm]以下。
H2ガスの流量:200[sccm]以下。
チャンバ12の水素分圧:15[mTorr]以下。
工程ST3において、SiH4ガス、N2ガス、H2ガス、およびArガスは、第1ガス供給管90を介してガス噴出口94から空間Sに供給され、さらに、第2ガスライン84を介してガス噴出口102から空間Sに供給される。Arガスは、さらに、第3ガスライン86を介してガス噴出口110から空間Sに供給される。チャンバ12の内圧(全圧)は、制御部122が圧力調整器55および排気装置56を制御することによって、増減される。チャンバ12の水素分圧は、制御部122が、処理ガス供給部80のMFC216およびMFC218を制御してH2ガスの流量を増減することによって増減される。また、チャンバ12内の水素分圧は、MFC216およびMFC218によって検出されるH2ガスの流量に基づいて制御部122によって算出される。
Claims (3)
- 被処理体を処理する方法であって、該被処理体は、第1磁性層と、該第1磁性層の上に設けられるトンネル障壁層と、該トンネル障壁層の第1表面に設けられ凸状に延びる積層部とを有し、該積層部は、該トンネル障壁層の該第1表面に設けられる第2磁性層を有し、該方法は、
エッチング処理を行う第1処理容器と、成膜処理を行う第2処理容器と、該第1処理容器および該第2処理容器を連結する連結部とを有する処理システムによって行われ、
前記エッチング処理を行う工程であり、前記第1処理容器において前記被処理体の前記積層部をエッチングによって形成する該工程と、
前記第1処理容器で行われた前記エッチング処理によって前記積層部が形成された前記被処理体を前記第1処理容器から前記第2処理容器に移動する工程と、
前記移動する前記工程の後に前記第2処理容器において前記被処理体に対し前記成膜処理を行う工程と、
を含み、
前記成膜処理を行う工程は、水素を含む処理ガスのプラズマによって、前記トンネル障壁層の前記第1表面と前記積層部の第2表面とに絶縁膜を成膜し、
前記第2処理容器の内圧は、前記成膜処理を行う前記工程において、200mTorr以上1500mTorr以下であり、
前記第2処理容器の水素分圧は、前記成膜処理を行う前記工程において、15mTorr以下であり、
前記第1処理容器、前記第2処理容器、および前記連結部は、酸素を含む外気に対して気密であり、
前記連結部は、前記第1処理容器および前記第2処理容器を、酸素を含む外気に対して気密に連結し、
前記エッチング処理を行う前記工程と前記第2処理容器に移動する前記工程と前記成膜処理を行う前記工程とは、一貫して酸素が排気された状態で行われ、
前記処理ガスは、SiH4ガス、N2ガス、およびH2ガスを含み、
前記絶縁膜は、SiNの膜である、
方法。 - 前記トンネル障壁層は、MgOを含む、請求項1に記載の方法。
- 前記第2磁性層は、CoFeを含む、請求項1または請求項2に記載の方法。
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