JP2008283051A - 半導体記憶装置及び半導体記憶装置の製造方法 - Google Patents
半導体記憶装置及び半導体記憶装置の製造方法 Download PDFInfo
- Publication number
- JP2008283051A JP2008283051A JP2007126916A JP2007126916A JP2008283051A JP 2008283051 A JP2008283051 A JP 2008283051A JP 2007126916 A JP2007126916 A JP 2007126916A JP 2007126916 A JP2007126916 A JP 2007126916A JP 2008283051 A JP2008283051 A JP 2008283051A
- Authority
- JP
- Japan
- Prior art keywords
- insulating film
- conductive layer
- forming
- sidewall
- memory device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 238000003860 storage Methods 0.000 title abstract description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000000460 chlorine Substances 0.000 claims abstract description 47
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 47
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 18
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 66
- 229910052760 oxygen Inorganic materials 0.000 claims description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 239000002243 precursor Substances 0.000 claims description 17
- 239000011229 interlayer Substances 0.000 claims description 11
- 238000000231 atomic layer deposition Methods 0.000 claims description 7
- 239000012298 atmosphere Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 283
- 238000000034 method Methods 0.000 description 53
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 22
- 229910052814 silicon oxide Inorganic materials 0.000 description 22
- 230000014759 maintenance of location Effects 0.000 description 19
- 229910052581 Si3N4 Inorganic materials 0.000 description 12
- 125000004429 atom Chemical group 0.000 description 12
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 12
- 230000006866 deterioration Effects 0.000 description 10
- 229920002120 photoresistant polymer Polymers 0.000 description 8
- 229910052735 hafnium Inorganic materials 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000005516 deep trap Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910004129 HfSiO Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 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
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- -1 hafnium aluminate Chemical class 0.000 description 2
- 229910000449 hafnium oxide Inorganic materials 0.000 description 2
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- PHUNDLUSWHZQPF-UHFFFAOYSA-N bis(tert-butylamino)silicon Chemical compound CC(C)(C)N[Si]NC(C)(C)C PHUNDLUSWHZQPF-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/30—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region
-
- 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
- H01L21/02—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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—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
- 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
- H01L21/0228—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 deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
- H01L21/02318—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment
- H01L21/02337—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to a gas or vapour
-
- 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
- H01L21/02—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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/314—Inorganic layers
- H01L21/3141—Deposition using atomic layer deposition techniques [ALD]
-
- 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
- H01L21/02—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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/31604—Deposition from a gas or vapour
- H01L21/31608—Deposition of SiO2
- H01L21/31612—Deposition of SiO2 on a silicon body
-
- 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
- H01L29/401—Multistep manufacturing processes
- H01L29/4011—Multistep manufacturing processes for data storage electrodes
- H01L29/40114—Multistep manufacturing processes for data storage electrodes the electrodes comprising a conductor-insulator-conductor-insulator-semiconductor structure
-
- 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
- H01L29/423—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
- H01L29/42324—Gate electrodes for transistors with a floating gate
-
- 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
- H01L29/788—Field effect transistors with field effect produced by an insulated gate with floating gate
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B69/00—Erasable-and-programmable ROM [EPROM] devices not provided for in groups H10B41/00 - H10B63/00, e.g. ultraviolet erasable-and-programmable ROM [UVEPROM] devices
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
- Chemical Vapour Deposition (AREA)
- Formation Of Insulating Films (AREA)
Abstract
【解決手段】半導体装置は、セルサイズが60nm以下であって、埋め込み絶縁膜104を含むシリコン基板101のチャネル領域に形成されたトンネル絶縁膜102と、前記トンネル絶縁膜102上に形成された第1の導電層103と、前記埋め込み絶縁膜104及び前記第1の導電層103上に形成された電極間絶縁膜105と、前記電極間絶縁膜105上に形成された第2の導電層106と、前記第1の導電層103、前記第2の導電層106、及び前記電極間絶縁膜105の側壁に形成された側壁絶縁膜107と、前記側壁絶縁膜107上に形成された層間絶縁膜108と、を有し、 前記トンネル絶縁膜102又は前記電極間絶縁膜105は高誘電率絶縁膜を含み、前記側壁絶縁膜107は、所定の濃度の炭素及び窒素、並びに1×1019Atoms/cm3以下の濃度の塩素を含む。
【選択図】図1(a)
Description
次に、図3〜11を参照して、実施例1に係る不揮発性半導体記憶装置の製造方法について説明する。
次に、図12、13を参照して、実施例2の不揮発性半導体記憶装置の製造方法について説明する。なお、実施例1の製造方法と同様の内容については、説明を省略する。
次に、図14を参照して比較例について説明する。比較例では、側壁絶縁膜中に塩素を1E+19atoms/cm3以上含有する。
102 第1の絶縁膜(トンネル絶縁膜)
103 第1の導電層(浮遊ゲート電極)
104 素子分離埋め込み絶縁膜
105 第2の絶縁膜(電極間絶縁膜)
106 第2の導電層(制御ゲート電極)
107 側壁絶縁膜
108 層間絶縁膜
Claims (5)
- セルサイズが60nm以下である半導体記憶装置であって、
埋め込み絶縁膜を含むシリコン基板のチャネル領域に形成されたトンネル絶縁膜と、
前記トンネル絶縁膜上に形成された第1の導電層と、
前記埋め込み絶縁膜及び前記第1の導電層上に形成された電極間絶縁膜と、
前記電極間絶縁膜上に形成された第2の導電層と、
前記第1の導電層、前記第2の導電層、及び前記電極間絶縁膜の側壁に形成された側壁絶縁膜と、
前記側壁絶縁膜上に形成された層間絶縁膜と、を有し、
前記トンネル絶縁膜又は前記電極間絶縁膜は高誘電率絶縁膜を含み、
前記側壁絶縁膜は、所定の濃度の炭素及び窒素、並びに1×1019atoms/cm3以下の濃度の塩素を含むことを特徴とする半導体記憶装置。 - 請求項1に記載の半導体記憶装置であって、
前記側壁絶縁膜は、前記層間絶縁膜に接する領域において、1×1019atoms/cm3以下の濃度の塩素を含むことを特徴とする半導体記憶装置。 - セルサイズが60nm以下である半導体記憶装置の製造方法であって、
シリコン基板のチャネル領域にトンネル絶縁膜を形成するステップと、
前記トンネル絶縁膜上に第1の導電層を形成するステップと、
前記第1の導電層上に電極間絶縁膜を形成するステップと、
前記電極間絶縁膜上に第2の導電層を形成するステップと、
前記第2の導電層、前記電極間絶縁膜、及び前記第1の導電層を加工するステップと、
前記第1の導電層、前記第2の導電層、及び前記電極間絶縁膜の側壁に所定の濃度の炭素及び窒素、並びに1×1019atoms/cm3以下の濃度の塩素を含有する側壁絶縁膜を形成するステップと、
前記側壁絶縁膜上に層間絶縁膜を形成するステップと、を有し、
前記トンネル絶縁膜又は前記電極間絶縁膜を形成するステップにおいて、高誘電率絶縁膜を形成することを特徴とする半導体記憶装置の製造方法。 - 請求項3に記載の半導体記憶装置の製造方法であって、
前記側壁絶縁膜を形成するステップは、400〜600°でシリコン及び炭素を含む前駆体を用いた原子層堆積法によって形成することを特徴とする半導体記憶装置の製造方法。 - セルサイズが60nm以下である半導体記憶装置の製造方法であって、
シリコン基板のチャネル領域にトンネル絶縁膜を形成するステップと、
前記トンネル絶縁膜上に第1の導電層を形成するステップと、
前記第1の導電層上に電極間絶縁膜を形成するステップと、
前記電極間絶縁膜上に第2の導電層を形成するステップと、
前記第2の導電層、前記電極間絶縁膜、前記第1の導電層を加工するステップと、
前記第1の導電層、前記第2の導電層、及び前記電極間絶縁膜の側壁に炭素、窒素、及び塩素を含有する側壁絶縁膜を形成するステップと、
前記側壁絶縁膜上に層間絶縁膜を形成するステップと、
水素及び酸素を含む雰囲気中で全面に熱処理を行うことにより、前記側壁絶縁膜に含有される塩素の濃度を1×1019atoms/cm3以下に低減するステップと、を有し、
前記トンネル絶縁膜又は前記電極間絶縁膜を形成するステップにおいて、高誘電率絶縁膜を形成することを特徴とする半導体記憶装置の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007126916A JP2008283051A (ja) | 2007-05-11 | 2007-05-11 | 半導体記憶装置及び半導体記憶装置の製造方法 |
KR1020080041776A KR100966680B1 (ko) | 2007-05-07 | 2008-05-06 | 반도체 기억 장치 및 반도체 기억 장치의 제조 방법 |
US12/118,328 US20090001448A1 (en) | 2007-05-11 | 2008-05-09 | Semiconductor memory device and method of manufacturing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007126916A JP2008283051A (ja) | 2007-05-11 | 2007-05-11 | 半導体記憶装置及び半導体記憶装置の製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2008283051A true JP2008283051A (ja) | 2008-11-20 |
Family
ID=40143606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007126916A Pending JP2008283051A (ja) | 2007-05-07 | 2007-05-11 | 半導体記憶装置及び半導体記憶装置の製造方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20090001448A1 (ja) |
JP (1) | JP2008283051A (ja) |
KR (1) | KR100966680B1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8883523B2 (en) | 2010-05-14 | 2014-11-11 | Beijing Boe Optoelectronics Technology Co., Ltd. | Method for detecting pattern offset amount of exposed regions and detecting mark |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101533447B1 (ko) * | 2009-09-30 | 2015-07-02 | 삼성전자주식회사 | 반도체 소자 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000077403A (ja) * | 1998-06-11 | 2000-03-14 | Air Prod And Chem Inc | 酸素含有ケイ素化合物膜の成長方法 |
JP2001156063A (ja) * | 1999-11-24 | 2001-06-08 | Hitachi Kokusai Electric Inc | 半導体装置の製造方法および半導体製造装置 |
JP2002289612A (ja) * | 2001-03-26 | 2002-10-04 | Japan Science & Technology Corp | 半導体基板表面の酸化膜の形成方法及び半導体装置の製造方法 |
JP2004153066A (ja) * | 2002-10-31 | 2004-05-27 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2005005537A (ja) * | 2003-06-12 | 2005-01-06 | Semiconductor Leading Edge Technologies Inc | 窒化膜の膜質改善方法、及び半導体装置の製造方法 |
JP2006165081A (ja) * | 2004-12-03 | 2006-06-22 | Fujitsu Ltd | 半導体装置の製造方法および半導体装置 |
JP2006278935A (ja) * | 2005-03-30 | 2006-10-12 | Renesas Technology Corp | 半導体装置およびその製造方法 |
JP2006339207A (ja) * | 2005-05-31 | 2006-12-14 | Toshiba Corp | 半導体記憶装置およびその製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05206453A (ja) * | 1992-01-27 | 1993-08-13 | Kawasaki Steel Corp | 半導体装置およびその製造方法 |
AU1933199A (en) * | 1997-12-18 | 1999-07-05 | Micron Technology, Inc. | Semiconductor processing method and field effect transistor |
US6642131B2 (en) * | 2001-06-21 | 2003-11-04 | Matsushita Electric Industrial Co., Ltd. | Method of forming a silicon-containing metal-oxide gate dielectric by depositing a high dielectric constant film on a silicon substrate and diffusing silicon from the substrate into the high dielectric constant film |
JP2003204063A (ja) * | 2002-01-10 | 2003-07-18 | Toshiba Corp | 半導体装置及びその製造方法 |
JP2004022575A (ja) | 2002-06-12 | 2004-01-22 | Sanyo Electric Co Ltd | 半導体装置 |
JP4237561B2 (ja) * | 2003-07-04 | 2009-03-11 | 株式会社東芝 | 半導体記憶装置及びその製造方法 |
JP4669679B2 (ja) * | 2004-07-29 | 2011-04-13 | 東京エレクトロン株式会社 | 窒化珪素膜の製造方法及び半導体装置の製造方法 |
JP4734019B2 (ja) * | 2005-04-26 | 2011-07-27 | 株式会社東芝 | 半導体記憶装置及びその製造方法 |
JP2007088113A (ja) * | 2005-09-21 | 2007-04-05 | Sony Corp | 半導体装置の製造方法 |
JP5032145B2 (ja) * | 2006-04-14 | 2012-09-26 | 株式会社東芝 | 半導体装置 |
KR100757333B1 (ko) | 2006-10-12 | 2007-09-11 | 삼성전자주식회사 | 불휘발성 메모리 장치의 제조 방법 |
-
2007
- 2007-05-11 JP JP2007126916A patent/JP2008283051A/ja active Pending
-
2008
- 2008-05-06 KR KR1020080041776A patent/KR100966680B1/ko not_active IP Right Cessation
- 2008-05-09 US US12/118,328 patent/US20090001448A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000077403A (ja) * | 1998-06-11 | 2000-03-14 | Air Prod And Chem Inc | 酸素含有ケイ素化合物膜の成長方法 |
JP2001156063A (ja) * | 1999-11-24 | 2001-06-08 | Hitachi Kokusai Electric Inc | 半導体装置の製造方法および半導体製造装置 |
JP2002289612A (ja) * | 2001-03-26 | 2002-10-04 | Japan Science & Technology Corp | 半導体基板表面の酸化膜の形成方法及び半導体装置の製造方法 |
JP2004153066A (ja) * | 2002-10-31 | 2004-05-27 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2005005537A (ja) * | 2003-06-12 | 2005-01-06 | Semiconductor Leading Edge Technologies Inc | 窒化膜の膜質改善方法、及び半導体装置の製造方法 |
JP2006165081A (ja) * | 2004-12-03 | 2006-06-22 | Fujitsu Ltd | 半導体装置の製造方法および半導体装置 |
JP2006278935A (ja) * | 2005-03-30 | 2006-10-12 | Renesas Technology Corp | 半導体装置およびその製造方法 |
JP2006339207A (ja) * | 2005-05-31 | 2006-12-14 | Toshiba Corp | 半導体記憶装置およびその製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8883523B2 (en) | 2010-05-14 | 2014-11-11 | Beijing Boe Optoelectronics Technology Co., Ltd. | Method for detecting pattern offset amount of exposed regions and detecting mark |
US9303969B2 (en) | 2010-05-14 | 2016-04-05 | Boe Technology Group Co., Ltd. | Method for detecting pattern offset amount of exposed regions and detecting mark |
Also Published As
Publication number | Publication date |
---|---|
KR100966680B1 (ko) | 2010-06-29 |
US20090001448A1 (en) | 2009-01-01 |
KR20080099157A (ko) | 2008-11-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8742487B2 (en) | Nonvolatile semiconductor memory device provided with charge storage layer in memory cell | |
JP5135250B2 (ja) | 半導体装置の製造方法 | |
KR101076081B1 (ko) | 불휘발성 반도체 기억 장치 및 그 제조 방법 | |
JP4921837B2 (ja) | 半導体装置の製造方法 | |
JP4855958B2 (ja) | 不揮発性半導体記憶装置及びその製造方法 | |
JP2010021204A (ja) | 半導体装置及びその製造方法 | |
JP2009272348A (ja) | 半導体装置およびその製造方法 | |
JP2009260070A (ja) | 半導体装置及びその製造方法 | |
JP4834517B2 (ja) | 半導体装置 | |
JP2009170781A (ja) | 不揮発性半導体記憶装置およびその製造方法 | |
JP2009170660A (ja) | 半導体記憶装置およびその製造方法 | |
JP5291984B2 (ja) | 不揮発性半導体記憶装置及びその製造方法 | |
US20120261748A1 (en) | Semiconductor device with recess gate and method for fabricating the same | |
KR100905138B1 (ko) | 반도체 장치 | |
CN107706111B (zh) | 半导体器件的形成方法 | |
JP2009130120A (ja) | 半導体装置 | |
KR100966680B1 (ko) | 반도체 기억 장치 및 반도체 기억 장치의 제조 방법 | |
JP2007318015A (ja) | 半導体装置およびその製造方法 | |
US20090096006A1 (en) | Nonvolatile semiconductor storage apparatus and method for manufacturing the same | |
US7972927B2 (en) | Method of manufacturing a nonvolatile semiconductor memory device | |
KR100879183B1 (ko) | 불휘발성 반도체 기억 장치 및 그 제조 방법 | |
JP2009212450A (ja) | 半導体装置およびその製造方法 | |
JP2010027967A (ja) | 不揮発性半導体記憶装置の製造方法 | |
JP2005093910A (ja) | 半導体記憶装置とその製造方法 | |
JP2005236020A (ja) | 半導体装置の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20090316 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090618 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090904 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20091102 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20100716 |