JP6063181B2 - プラズマ処理方法、及びプラズマ処理装置 - Google Patents
プラズマ処理方法、及びプラズマ処理装置 Download PDFInfo
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- JP6063181B2 JP6063181B2 JP2012189063A JP2012189063A JP6063181B2 JP 6063181 B2 JP6063181 B2 JP 6063181B2 JP 2012189063 A JP2012189063 A JP 2012189063A JP 2012189063 A JP2012189063 A JP 2012189063A JP 6063181 B2 JP6063181 B2 JP 6063181B2
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- gas
- plasma processing
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- nickel
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- 238000012545 processing Methods 0.000 title claims description 190
- 238000003672 processing method Methods 0.000 title claims description 24
- 239000007789 gas Substances 0.000 claims description 241
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 170
- 229910052759 nickel Inorganic materials 0.000 claims description 69
- 239000000463 material Substances 0.000 claims description 51
- 238000005530 etching Methods 0.000 claims description 39
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 34
- 239000001257 hydrogen Substances 0.000 claims description 34
- 229910052739 hydrogen Inorganic materials 0.000 claims description 34
- 229910021334 nickel silicide Inorganic materials 0.000 claims description 29
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 claims description 29
- 229910052731 fluorine Inorganic materials 0.000 claims description 26
- 239000011737 fluorine Substances 0.000 claims description 26
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 17
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 17
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 16
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910021332 silicide Inorganic materials 0.000 claims description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
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- 239000001301 oxygen Substances 0.000 description 27
- 229910052760 oxygen Inorganic materials 0.000 description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 21
- 238000000034 method Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 15
- 230000007246 mechanism Effects 0.000 description 12
- 238000009792 diffusion process Methods 0.000 description 8
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- 230000007423 decrease Effects 0.000 description 4
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- 238000003860 storage Methods 0.000 description 3
- 229910005883 NiSi Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
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- 230000005669 field effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000000427 thin-film deposition Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 150000002221 fluorine Chemical class 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/332—Coating
- H01J2237/3321—CVD [Chemical Vapor Deposition]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/334—Etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76897—Formation of self-aligned vias or contact plugs, i.e. involving a lithographically uncritical step
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- Engineering & Computer Science (AREA)
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- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Plasma & Fusion (AREA)
- Analytical Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Drying Of Semiconductors (AREA)
- Electrodes Of Semiconductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Description
11 処理容器
20 フォーカスリング
30 第1の高周波電源
40 第2の高周波電源
42 上部電極
51 電極板
52 電極支持体
72 処理ガス供給源
72a、72b、72c、72d ガス供給部
74a、74b、74c、74d 流量調整機構
150 制御部
D1 ニッケルシリサイド膜
D2、D4 窒化シリコン膜
D3、D5 酸化シリコン膜
W ウェハ
Claims (6)
- プラズマ処理装置におけるプラズマ処理方法であって、
フッ素含有ガスをプラズマ処理空間に供給し、ニッケルシリサイド膜の表面に酸化シリコン膜又は窒化シリコン膜が形成された被処理基板を前記フッ素含有ガスのプラズマを用いてエッチングする第1の工程と、
水素含有ガスを前記プラズマ処理空間に供給し、前記プラズマ処理空間に表面を対向させて配置された部材に対して前記第1の工程の後に付着したニッケル含有物を前記水素含有ガスのプラズマを用いて還元する第2の工程と、
CO 2 ガスを前記プラズマ処理空間に供給し、前記第2の工程によって前記ニッケル含有物が還元されて得られたニッケルを前記CO 2 ガスのプラズマを用いて除去する第3の工程と
を含むことを特徴とするプラズマ処理方法。 - 前記プラズマ処理装置が、
前記第1の工程を実行した後に前記第2の工程及び前記第3の工程を少なくとも2回繰り返して実行することを特徴とする請求項1に記載のプラズマ処理方法。 - 前記第2の工程は、前記水素含有ガスと窒素含有ガスとを前記プラズマ処理空間に供給し、前記部材に対して前記第1の工程の後に付着したニッケル含有物を前記水素含有ガス及び前記窒素含有ガスのプラズマを用いて還元することを特徴とする請求項1又は2に記載のプラズマ処理方法。
- 前記窒素含有ガスは、N2ガスであることを特徴とする請求項3に記載のプラズマ処理方法。
- 前記水素含有ガスは、H2ガス、CH3Fガス、CH2F2ガス及びCHF3ガスのうち少なくともいずれか一つのガスであることを特徴とする請求項1〜4のいずれか一つに記載のプラズマ処理方法。
- ニッケルシリサイド膜の表面に酸化シリコン膜又は窒化シリコン膜が形成された被処理基板が配置されるプラズマ処理空間を画成する処理容器と、
フッ素含有ガスを前記プラズマ処理空間に供給する第1のガス供給部と、
水素含有ガスを前記プラズマ処理空間に供給する第2のガス供給部と、
CO 2 ガスを前記プラズマ処理空間に供給する第3のガス供給部と、
前記第1のガス供給部から前記フッ素含有ガスを前記プラズマ処理空間に供給し、前記フッ素含有ガスのプラズマを用いて前記被処理基板をエッチングする第1の工程と、前記第2のガス供給部から前記水素含有ガスを前記プラズマ処理空間に供給し、前記プラズマ処理空間に表面を対向させて配置された部材に対して前記第1の工程の後に付着したニッケル含有物を前記水素含有ガスのプラズマを用いて還元する第2の工程と、前記第3のガス供給部から前記CO 2 ガスを前記プラズマ処理空間に供給し、前記第2の工程によって前記ニッケル含有物が還元されて得られたニッケルを前記CO 2 ガスのプラズマを用いて除去する第3の工程とを実行する制御部と
を備えたことを特徴とするプラズマ処理装置。
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JP2012189063A JP6063181B2 (ja) | 2012-08-29 | 2012-08-29 | プラズマ処理方法、及びプラズマ処理装置 |
PCT/JP2013/072893 WO2014034674A1 (ja) | 2012-08-29 | 2013-08-27 | プラズマ処理方法、及びプラズマ処理装置 |
CN201380045527.XA CN104603917B (zh) | 2012-08-29 | 2013-08-27 | 等离子体处理方法和等离子体处理装置 |
US14/424,497 US9209041B2 (en) | 2012-08-29 | 2013-08-27 | Plasma processing method and plasma processing apparatus |
EP13834069.0A EP2879167B1 (en) | 2012-08-29 | 2013-08-27 | Plasma processing method and plasma processing device |
KR1020157005121A KR102104867B1 (ko) | 2012-08-29 | 2013-08-27 | 플라즈마 처리 방법 및 플라즈마 처리 장치 |
TW102130778A TWI593012B (zh) | 2012-08-29 | 2013-08-28 | Plasma processing method and plasma processing device |
US14/931,964 US9953862B2 (en) | 2012-08-29 | 2015-11-04 | Plasma processing method and plasma processing apparatus |
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TWI593012B (zh) | 2017-07-21 |
JP2014049496A (ja) | 2014-03-17 |
EP2879167B1 (en) | 2019-10-09 |
US20150221522A1 (en) | 2015-08-06 |
WO2014034674A1 (ja) | 2014-03-06 |
EP2879167A1 (en) | 2015-06-03 |
KR20150048135A (ko) | 2015-05-06 |
CN104603917B (zh) | 2018-04-17 |
EP2879167A4 (en) | 2016-03-09 |
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