WO2007145075A1 - シリコン系薄膜及びシリコン系薄膜の形成方法 - Google Patents
シリコン系薄膜及びシリコン系薄膜の形成方法 Download PDFInfo
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- WO2007145075A1 WO2007145075A1 PCT/JP2007/060954 JP2007060954W WO2007145075A1 WO 2007145075 A1 WO2007145075 A1 WO 2007145075A1 JP 2007060954 W JP2007060954 W JP 2007060954W WO 2007145075 A1 WO2007145075 A1 WO 2007145075A1
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- Prior art keywords
- thin film
- film
- silicon
- forming
- substrate
- Prior art date
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- 239000010409 thin film Substances 0.000 title claims abstract description 128
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 47
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000010703 silicon Substances 0.000 title claims abstract description 45
- 239000007789 gas Substances 0.000 claims abstract description 68
- 239000000758 substrate Substances 0.000 claims abstract description 61
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 238000005268 plasma chemical vapour deposition Methods 0.000 claims abstract description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 9
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000001257 hydrogen Substances 0.000 claims abstract description 3
- 239000010408 film Substances 0.000 claims description 98
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims description 31
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000005229 chemical vapour deposition Methods 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 20
- 229910052581 Si3N4 Inorganic materials 0.000 description 18
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 17
- 238000005401 electroluminescence Methods 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 229910052814 silicon oxide Inorganic materials 0.000 description 11
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920002799 BoPET Polymers 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000006557 surface reaction Methods 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000005001 rutherford backscattering spectroscopy Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 208000018459 dissociative disease Diseases 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- 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
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/0262—Reduction or decomposition of gaseous compounds, e.g. CVD
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/401—Oxides containing silicon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/42—Silicides
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/873—Encapsulations
- H10K59/8731—Encapsulations multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
- H10K50/8445—Encapsulations multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
Definitions
- the present invention relates to a silicon-based thin film and a method for forming a silicon-based thin film. More particularly, the present invention relates to a silicon-based thin film having an insulating function or a noria function, and a method of forming the silicon-based thin film on a substrate by a CVD (chemical vapor deposition) method.
- CVD chemical vapor deposition
- a silicon nitride film is important as a protective film or an insulating film of a semiconductor device, and a thermal CVD method or a plasma CVD method is used for forming the silicon nitride film.
- a thermal CVD method for example, a silicon nitride film is chemically deposited on the substrate surface by a thermal decomposition reaction at a temperature of 750 to 800 ° C using silane (Si H4) gas and ammonia (NH3) gas. Grow.
- SiH4 gas and NH3 gas are also used, a high frequency electric field is applied to this reaction gas, the gas is activated using the electrical energy, and the substrate is formed at a low temperature of about 300 ° C by plasma reaction.
- a silicon nitride film is chemically grown on the surface. Conventionally, the silicon nitride film formed in this manner has a problem that cracks and peeling easily occur due to intrusion of moisture and impurities.
- Patent Document 1 discloses that a substrate is etched by using a halogen-based gas excited by plasma and etching the surface of the substrate under vacuum conditions. A technique is disclosed in which impurities remaining in the substrate are completely removed and uniform and fine irregularities are formed on the surface to improve the adhesion and film quality between the silicon nitride film and the substrate.
- Patent Document 2 a pretreatment chamber is provided in front of the film forming chamber. In this pretreatment chamber, ECR (Electron Cyclotron Resonance) plasma is irradiated on the surface of the substrate and adsorbed on the surface of the substrate.
- ECR Electro Cyclotron Resonance
- Patent Document 1 Japanese Patent Application Laid-Open No. 5-315251
- Patent Document 2 JP-A-5-331618 Disclosure of the invention
- Patent Document 1 when the method of Patent Document 1 described above is applied to a substrate on which an electronic device such as an organic EL (Electro Luminescence) is formed, the electronic device itself may be etched. is there.
- the method of Patent Document 2 described above when the method of Patent Document 2 described above is applied to the substrate, the electronic device is constantly exposed to ECR plasma when moisture is desorbed, and thus is susceptible to plasma damage.
- the pretreatment chamber is provided in front of the film forming chamber, the apparatus configuration is greatly applied.
- the present invention has been made in view of such a situation, and does not damage an electronic device formed on a substrate, and does not make the apparatus configuration a large force.
- An object of the present invention is to provide a silicon-based thin film capable of improving the adhesion of the silicon-based thin film to the substrate and capable of forming a silicon-based thin film that is unlikely to be cracked or peeled off, and a method for forming the silicon-based thin film.
- a silicon-based thin film forming method of the present invention is a silicon-based thin film in which a silicon-based thin film having an insulating function or a noria function is formed on a substrate K by a CVD method.
- a step of forming the first thin film 11 by the plasma CVD method on the substrate K using a gas containing a hydrogen element and a gas containing a silicon element, a gas containing a nitrogen element and a gas containing a silicon element And forming a second thin film 12 by a plasma CVD method, and forming a third thin film 13 by a plasma CVD method using a gas containing an oxygen element and a gas containing a silicon element.
- the first thin film 11 is formed in the lowermost layer, and the second thin film 12 and the third thin film 13 are alternately laminated on the first thin film 11.
- Si: 0 l: The second thin film 12 and the third thin film 13 are formed so as to include the composition ratio of 9 to 2.1.
- HMDS Hexa Methyl DiSilazane
- Tildisilazane Tildisilazane
- the silicon-based thin film of the present invention is a silicon-based thin film having an insulating function or a barrier function, and the first thin film 11, the second thin film 12, and the third thin film 13 are arranged in this order on the substrate K.
- the first thin film 11 contains H and Si as constituent elements
- the third thin film 13 contains Si and O.
- the first thin film 11 is formed in the lowermost layer, and the second thin film 12 and the third thin film 13 are alternately stacked on the first thin film 11.
- the substrate is a target to which an insulating function or a barrier function is imparted, and a resin film such as a PET (polyethylene terephthalate) film itself or an organic EL on the resin film.
- a resin film such as a PET (polyethylene terephthalate) film itself or an organic EL on the resin film.
- the present invention it is possible to improve the adhesion of the silicon-based thin film to the substrate without damaging the electronic device formed on the substrate and without increasing the apparatus configuration.
- the present invention provides a silicon-based thin film that can be easily cracked and peeled off and a method for forming a silicon-based thin film.
- FIG. 1 is a schematic front view of a sealing film forming apparatus used in the practice of the present invention
- FIG. 2 is a schematic plan view of the sealing film forming apparatus of FIG.
- This sealing film forming apparatus is manufactured for film formation experiments, and is different from the apparatus used in the production line of a semiconductor device manufacturing factory such as an organic EL substrate.
- the sealing film forming apparatus 1 includes a load lock chamber 2, a robot chamber 3 connected to the load lock chamber 2, and a film forming chamber 4 connected to the robot chamber 3.
- the sealing film to be formed by the sealing film forming apparatus 1 is a laminated film of a silicon nitride film and a silicon oxide film.
- the load lock chamber 2 can be isolated from the robot chamber 3 by the gate valve 21. In addition, it is connected to a vacuum pump 22 and has a substrate stocker 23 inside.
- the substrate stocker 23 includes support pins 24 for supporting the peripheral edge of the substrate K. Where substrate K The size is 370 mm ⁇ 470 mm, and the organic EL element 9 is formed on the surface.
- the robot chamber 3 includes a substrate transfer robot 31 inside.
- the substrate transfer robot 31 includes a motor 32, an arm 33, and a movable support base 34.
- the movable support base 34 is configured to be movable in the X, ⁇ , and Z directions via the arm 33 by driving the motor 32.
- the movable support base 34 includes support pins 35 similar to the support pins 24 of the substrate stocker 23.
- the film forming chamber 4 communicates with the robot chamber 3, and is connected to the vacuum pump 42, the HMDS supply tank 44, the N H3 supply tank 46, the H2 supply tank 52, the Ar supply tank 53, and the 02 supply tank 55.
- the Connected to the vacuum pump 42 via the flow control valve 41, connected to the HMDS supply tank 44 via the flow control valve 43, connected to the NH3 supply tank 46 via the flow control valve 45, and H2 supply tank 52 and Ar supply tank 53 are connected via a flow control valve 51, and 02 supply tank 55 is connected via a flow control valve 54.
- a norep antenna 47 is provided inside the film forming chamber 4, a norep antenna 47 is provided inside the film forming chamber 4, a norep antenna 47 is provided inside the film forming chamber 4, a norep antenna 47 is provided inside the film forming chamber 4, a norep antenna 47 is provided inside the film forming chamber 4, a norep antenna 47 is provided inside the film forming chamber 4, a norep antenna 47 is provided inside the film
- the loop antenna 47 is a means for generating plasma, and includes an insulating tube 48 and a conductive electrode 49.
- Two insulating tubes 48 are arranged in parallel in the film forming chamber 4 so as to face each other.
- the electrically conductive electrode 49 is installed on two insulating tubes 48, and penetrates through the side walls facing each other of the film forming chamber 4 so as to have a substantially U shape in plan view as shown in FIG. Connected to power supply 50.
- the frequency of the high-frequency current 50 is preferably 13.56 MHz.
- the plasma used may be CCP (Capacitive Coupled Plasma), ICP (Inductive Coupled Plasma), barrier discharge, or holo discharge.
- FIGS. 3 and 4 are diagrams for explaining the formation step of the sealing film according to the present invention
- FIG. 5 is a flowchart showing a procedure for forming the sealing film according to the present invention
- FIG. 6 is a procedure for forming the first thin film
- FIG. 7 is a flowchart showing a procedure for forming the second thin film
- FIG. 8 is a flowchart showing a procedure for forming the third thin film.
- the sealing film forming apparatus 1 will be described as being in the initial state shown below.
- the load lock chamber 2 has the gate valve 21 closed, and the internal pressure of the load lock chamber 2 is atmospheric pressure. It is.
- the substrate stocker 23 holds an unsealed substrate K having an organic EL element 9 formed on its surface (see FIG. 3 ( ⁇ )) with its element formation surface K1 facing vertically downward.
- the film forming chamber 4 and the robot chamber 3 are depressurized by a vacuum pump 42 to 9.9 ⁇ 10 _5 Pa or less.
- step S 1 the vacuum pump 22 starts operating, and the load lock chamber 2 is depressurized.
- the gate valve 21 is opened.
- step S2 the substrate transfer robot 31 extends the arm 33 into the load lock chamber 2, and the unsealed substrate K held by the substrate stocker 23 is placed in the same posture, that is, its element formation surface K1 vertically.
- the substrate transfer robot 31 contracts the arm 33.
- the gate valve 21 closes, and the substrate transfer robot 31 extends the arm 33 into the film forming chamber 4 as shown by the two-dot chain line in FIG. set.
- the first thin film forming process is started in step S 3.
- the mixed gas of H2 gas and Ar gas is introduced into the film forming chamber 4 by opening the flow valve 51.
- HMDS gas is introduced into the deposition chamber 4 by opening the flow valve 43.
- the introduction flow rates of the respective gases at this time are preferably 20 sccm to 40 sccm for the mixed gas of H2 gas and Ar gas, and 3 sccm to 5 sccm for the HMDS gas (step S31). If it is out of this range, the intended film cannot be formed, resulting in problems such as film peeling and cracking.
- a high-frequency current is passed from the power supply 50 to the loop antenna 47.
- plasma is generated around the loop antenna 47.
- the plasma power at this time is preferably 5 kW to 10 kW (step S32). The reason for this is that if the plasma power is lower than this range, the ionization of the gas by the plasma will be reduced, the film thickness to be formed will be thin, and consequently the film formation time will be longer. This is because etching and sputtering occur, and the formed film is cut or an unintended film is formed. A surface reaction occurs on the surface of the substrate so that the organic EL element 9 is covered as shown in FIG. A first thin film 11 is formed.
- the predetermined time T1 is, for example, a time for forming a film having a thickness of 15 nm, and is 45 seconds in the apparatus of FIG.
- the formation process of the second thin film 12 is started in step S4.
- NH3 gas is introduced into the film forming chamber 4 by opening the flow valve 45.
- N 2 gas may be introduced instead of the N H 3 gas.
- the flow rate of the HMD S gas is adjusted by the flow valve 43.
- the introduction flow rates of the respective gases are preferably 5 sccm to 500 sccm for NH3 gas and 3 sccm to 20 sccm for HMDS gas (step S41). If it is out of this range, the intended film cannot be formed, causing problems such as film peeling and cracking.
- a high-frequency current is supplied from the power source 50 to the loop antenna 47 so that the plasma power becomes 0.1 lkW to 8kW.
- the reason for this is that if the plasma power is smaller than this range, gas ionization by the plasma will be reduced, the film thickness to be formed will be thin, and the film formation time will be longer. This is because etching and sputtering occur, and the formed film is cut or an unintended film is formed.
- plasma is generated around the loop antenna 47 (step S42). A surface reaction occurs on the surface of the substrate K, and as shown in FIG. 3C, a second thin film 12, that is, a silicon nitride film is formed so as to cover the first thin film 11.
- the predetermined time T2 is, for example, a time for forming a silicon nitride film having a thickness of 50 ⁇ m, and is 2 minutes in the apparatus of FIG.
- This silicon nitride film consists of Si, H, C, N, and O.
- Si: H: C: N: 0 l: 3 to 4: l. 5 to 2.5: 0.5 to 1.5 : It is preferably contained at a composition ratio of 0.5 or less.
- the chemical formula of HMDS is (CH)
- the HMDS supply tank 44 functions as a C supply source.
- step S5 the formation process of the third thin film 13 is started in step S5.
- 02 gas is introduced into the film forming chamber 4 by opening the flow valve 54.
- the flow rate of HMDS gas is adjusted by the flow valve 43.
- the flow rate of each gas is preferably 20 sccm to 02 gas: LOOOsccm, and 3 sccm to 20 sccm for HMDS gas (step S51). If it is outside this range, the intended film cannot be formed. It causes problems such as peeling and cracking.
- a high-frequency current is supplied from the power source 50 to the loop antenna 47 so that the plasma power becomes 0.1 lkW to 8kW.
- the reason for this is that if the plasma power is smaller than this range, gas ionization by the plasma will be reduced, the film thickness to be formed will be thin, and the film formation time will be longer. This is because etching and sputtering occur, and the formed film is cut or an unintended film is formed.
- plasma is generated around the loop antenna 47 (step S52).
- a surface reaction is performed on the surface of the substrate K, and as shown in FIG. 4D, a third thin film 13, that is, a silicon oxide film is formed so as to cover the second thin film 12.
- the predetermined time T3 is a time for forming a silicon oxide film having a film thickness of lOOnm, which is 2 minutes in the apparatus of FIG.
- the first thin film 11 is formed on the substrate K by plasma CVD, and then using NH3 gas and HMDS gas,
- a second thin film 12, which is a silicon nitride film, is formed on the first thin film 11, and then the third thin film 13, which is a silicon oxide film, is formed on the second thin film 12 using 02 gas and HMDS gas.
- the first thin film 11 formed in step S3 has good adhesion. Specifically, cut 10 x 10 squares at 2mm intervals like a grid, peel off the adhesive tape, and peel off the tape to evaluate how many squares peeled off. An evaluation was conducted by a test to confirm that the adhesion was good. By interposing the first thin film 11 between the substrate K and the second thin film 12, the adhesion between the substrate K and the second thin film 12 and subsequent films is improved. No. 12 is less likely to crack or peel off, and can be reliable with little variation in performance. It has also been found that the barrier properties against moisture and oxygen are remarkably improved by alternately laminating the second thin film 12 and the third thin film 13. Details thereof will be described in the column of Examples.
- the method of the present invention does not use an etching process or the like, and therefore does not damage electronic devices such as the organic EL element 9.
- the laminate of the second thin film 12 and the third thin film 13 also has a function of protecting electronic devices such as the organic EL element 9 from plasma energy as it is chemically vapor-deposited on the substrate K. Less damage to electronic devices due to plasma energy. Further, since the second thin film 12 and the third thin film 13 are formed in the same chamber (film forming chamber 4), the apparatus structure does not become large. In addition, since HMDS gas is used as the source gas, there is no risk of explosion and excellent safety.
- the temperature at the time of forming each film is preferably 100 ° C or lower.
- the movable support base 34 may be swung in the X direction at a predetermined cycle. Thereby, a uniform film without unevenness can be obtained.
- step S6 When the stacked body strength of the second thin film 12 and the third thin film 13 has been formed (Yes in step S6), the gate valve 21 is opened in the load lock chamber 2, and the substrate transfer robot 31 contracts the arm 32, Then, it is extended to the load lock chamber 2. Then, the sealed substrate K is transferred to the substrate stocker 23, and the substrate transfer robot 31 contracts the arm 33. After the arm 33 is retracted, the gate valve 21 is closed. In step S6, the load lock chamber 2 is returned to atmospheric pressure and opened, and then the substrate K on which the sealing film has been formed can be taken out in step S9.
- FIG. 9 is a diagram for explaining the trapping effect of moisture and oxygen of the sealing film according to the present invention.
- the first thin film 11 is formed on the PET film substrate in the same manner as the above-described embodiment, and the silicon nitride film and the silicon oxide film are alternately formed on each of the 10 layers, and a total of 21 layers are formed.
- the layer film was measured by the Mocon method, which is a low-humidity measurement method, and a water vapor permeability of 0.02 gZm 2 'day, which is the lower limit of the measurement, was obtained. This low water vapor permeability indicates that the moisture protection properties (barrier properties) are high.
- a single film of a silicon nitride film and a single film of a silicon oxide film are respectively formed on a PET film substrate.
- the Mocon method which is a low-humidity measurement method
- the water vapor permeability was about 0.15 g Zm 2 'day, and the effect of multilayering could be sufficiently confirmed.
- the first thin film 11 is formed on the glass substrate in the same manner as the above-described embodiment, and the silicon nitride film and the silicon oxide film are alternately formed on the first thin film 11, and a total of five layers are laminated.
- the RBS Rutherford Back-Scattering Spectroscopy
- some oxygen membrane composition
- oxygen was not detected at all in the second layer, which is the lower layer far from the atmosphere, and it proved to be excellent in oxygen protection properties.
- the amount of oxygen permeation examined by forming a PET film was 0.1 cm 3 / m 2 'day.
- the reason why the sealing film formed by the method according to the present invention has excellent protection characteristics against moisture and oxygen will be described with reference to FIG.
- the silicon oxide film (third thin film) 13 has a gap 131 such as a crack or a non-film-formed part, moisture and oxygen in the outside air are in the middle as shown by a solid arrow A1. It is blocked and does not reach the lowest level (see dashed arrow A2).
- the silicon nitride-based film (second thin film) 12 functions as a moisture and oxygen getter (capturing means).
- the silicon nitride-based film 12 takes a form that adsorbs moisture and oxygen.
- FIG. 1 is a schematic front view of a sealing film forming apparatus used for carrying out the present invention.
- FIG. 2 is a schematic plan view of the sealing film forming apparatus of FIG.
- FIG. 3 is a diagram for explaining a formation step of a sealing film according to the present invention.
- FIG. 4 is a diagram for explaining a forming step of a sealing film according to the present invention.
- FIG. 5 is a flowchart showing a procedure for forming a sealing film according to the present invention.
- FIG. 6 is a flowchart showing a procedure for forming a first thin film.
- FIG. 7 is a flowchart showing a procedure for forming a second thin film.
- FIG. 8 is a flowchart showing a procedure for forming a third thin film.
- FIG. 9 is a diagram for explaining the trapping effect of moisture and oxygen of the sealing film according to the present invention. Explanation of symbols
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Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN2007800224621A CN101473064B (zh) | 2006-06-16 | 2007-05-30 | 硅系薄膜和硅系薄膜的形成方法 |
KR1020097000205A KR101336366B1 (ko) | 2006-06-16 | 2007-05-30 | 실리콘계 박막 및 실리콘계 박막의 형성 방법 |
JP2008521141A JP5089586B2 (ja) | 2006-06-16 | 2007-05-30 | シリコン系薄膜及びシリコン系薄膜の形成方法 |
US12/304,957 US7776670B2 (en) | 2006-06-16 | 2007-05-30 | Silicon thin-film and method of forming silicon thin-film |
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JP2006-167090 | 2006-06-16 | ||
JP2006167090 | 2006-06-16 |
Publications (1)
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WO2007145075A1 true WO2007145075A1 (ja) | 2007-12-21 |
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PCT/JP2007/060954 WO2007145075A1 (ja) | 2006-06-16 | 2007-05-30 | シリコン系薄膜及びシリコン系薄膜の形成方法 |
Country Status (6)
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US (1) | US7776670B2 (ja) |
JP (1) | JP5089586B2 (ja) |
KR (1) | KR101336366B1 (ja) |
CN (1) | CN101473064B (ja) |
TW (1) | TWI400353B (ja) |
WO (1) | WO2007145075A1 (ja) |
Cited By (4)
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WO2009028485A1 (ja) * | 2007-08-31 | 2009-03-05 | Tokyo Electron Limited | 有機電子デバイス、有機電子デバイスの製造方法、有機電子デバイスの製造装置、基板処理システム、保護膜の構造体、および制御プログラムが記憶された記憶媒体 |
CN102163962A (zh) * | 2010-02-18 | 2011-08-24 | 精工电子有限公司 | 封装件、封装件的制造方法、压电振动器、振荡器、电子设备及电波钟 |
JP2011523977A (ja) * | 2008-04-29 | 2011-08-25 | エージェンシー フォー サイエンス,テクノロジー アンド リサーチ | 無機傾斜バリア膜及びそれらの製造方法 |
KR20150059884A (ko) * | 2013-11-25 | 2015-06-03 | 엘지디스플레이 주식회사 | 유기발광 표시장치 제조방법 |
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JP2012084305A (ja) * | 2010-10-08 | 2012-04-26 | Sumitomo Chemical Co Ltd | 有機el装置 |
US9109879B2 (en) | 2012-02-29 | 2015-08-18 | Corning Incorporated | Systems for and methods of characterizing the thickness profile of laminated glass structures |
JP5967982B2 (ja) * | 2012-03-07 | 2016-08-10 | 東レエンジニアリング株式会社 | プラズマcvd法により形成された化学蒸着膜 |
KR102022299B1 (ko) * | 2012-12-20 | 2019-09-18 | 엘지디스플레이 주식회사 | 유기발광장치 및 그 제조방법 |
TWI700473B (zh) | 2014-06-04 | 2020-08-01 | 美商康寧公司 | 用於量測玻璃物品厚度的方法及系統 |
JP6565608B2 (ja) * | 2014-12-02 | 2019-08-28 | 株式会社デンソー | コーティング構造、熱交換器、および熱交換器の製造方法 |
KR102316288B1 (ko) * | 2015-02-04 | 2021-10-25 | 주성엔지니어링(주) | 투습 방지막과 그 제조 방법 |
KR102293494B1 (ko) * | 2015-04-27 | 2021-08-26 | 주성엔지니어링(주) | 투습 방지막과 그 제조 방법 |
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- 2007-05-30 KR KR1020097000205A patent/KR101336366B1/ko active IP Right Grant
- 2007-05-30 WO PCT/JP2007/060954 patent/WO2007145075A1/ja active Application Filing
- 2007-05-30 JP JP2008521141A patent/JP5089586B2/ja active Active
- 2007-05-30 CN CN2007800224621A patent/CN101473064B/zh not_active Expired - Fee Related
- 2007-06-13 TW TW096121257A patent/TWI400353B/zh active
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JP2002373778A (ja) * | 2001-06-07 | 2002-12-26 | Eliatech Co Ltd | 有機elパネル及びその製造方法 |
JP2005166400A (ja) * | 2003-12-02 | 2005-06-23 | Samco Inc | 表面保護膜 |
JP2006274390A (ja) * | 2005-03-30 | 2006-10-12 | Yamaguchi Prefecture | SiNxOyCz膜及び薄膜の成膜方法 |
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WO2009028485A1 (ja) * | 2007-08-31 | 2009-03-05 | Tokyo Electron Limited | 有機電子デバイス、有機電子デバイスの製造方法、有機電子デバイスの製造装置、基板処理システム、保護膜の構造体、および制御プログラムが記憶された記憶媒体 |
JP5410978B2 (ja) * | 2007-08-31 | 2014-02-05 | 東京エレクトロン株式会社 | 有機電子デバイスの製造方法および制御プログラムが記憶された記憶媒体 |
JP2011523977A (ja) * | 2008-04-29 | 2011-08-25 | エージェンシー フォー サイエンス,テクノロジー アンド リサーチ | 無機傾斜バリア膜及びそれらの製造方法 |
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CN102163962A (zh) * | 2010-02-18 | 2011-08-24 | 精工电子有限公司 | 封装件、封装件的制造方法、压电振动器、振荡器、电子设备及电波钟 |
KR20150059884A (ko) * | 2013-11-25 | 2015-06-03 | 엘지디스플레이 주식회사 | 유기발광 표시장치 제조방법 |
KR101616929B1 (ko) | 2013-11-25 | 2016-04-29 | 엘지디스플레이 주식회사 | 유기발광 표시장치 제조방법 |
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Also Published As
Publication number | Publication date |
---|---|
TWI400353B (zh) | 2013-07-01 |
CN101473064B (zh) | 2012-08-29 |
US20090321895A1 (en) | 2009-12-31 |
CN101473064A (zh) | 2009-07-01 |
KR20090026180A (ko) | 2009-03-11 |
JPWO2007145075A1 (ja) | 2009-10-29 |
JP5089586B2 (ja) | 2012-12-05 |
KR101336366B1 (ko) | 2013-12-04 |
TW200815618A (en) | 2008-04-01 |
US7776670B2 (en) | 2010-08-17 |
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