WO2006025123A1 - アッシング方法及びアッシング装置 - Google Patents
アッシング方法及びアッシング装置 Download PDFInfo
- Publication number
- WO2006025123A1 WO2006025123A1 PCT/JP2004/018629 JP2004018629W WO2006025123A1 WO 2006025123 A1 WO2006025123 A1 WO 2006025123A1 JP 2004018629 W JP2004018629 W JP 2004018629W WO 2006025123 A1 WO2006025123 A1 WO 2006025123A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ashing
- gas
- plasma
- added
- inert gas
- Prior art date
Links
- 238000004380 ashing Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 84
- 239000011261 inert gas Substances 0.000 claims abstract description 42
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 27
- 239000001257 hydrogen Substances 0.000 claims abstract description 15
- 239000003989 dielectric material Substances 0.000 claims description 2
- 230000006866 deterioration Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 13
- 229910052734 helium Inorganic materials 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 230000009849 deactivation Effects 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 230000001603 reducing effect Effects 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 238000001312 dry etching Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052704 radon Inorganic materials 0.000 description 1
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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
- H01L21/04—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
- H01L21/302—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
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion 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
- H01L21/02—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
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31127—Etching organic layers
- H01L21/31133—Etching organic layers by chemical means
- H01L21/31138—Etching organic layers by chemical means by dry-etching
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/42—Stripping or agents therefor
- G03F7/427—Stripping or agents therefor using plasma means only
-
- 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
- H01L21/302—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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- 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
- H01L21/302—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
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
Definitions
- the present invention relates to an ashing apparatus for removing a photoresist used as a mask for forming a circuit on a wafer in a semiconductor wafer process, and in particular, to prevent the ashing rate from being lowered and to increase the lifetime of a plasma generation chamber member.
- the technology relates to
- oxygen (O) plasma has been conventionally used.
- oxygen (O) plasma has been conventionally used.
- oxygen (O) plasma has been conventionally used.
- the dielectric constant is significantly increased.
- a large number of fine pores are exposed (specific surface area is increased), so that the film quality is extremely low in resistance to highly reactive oxygen plasma.
- Patent Document 1 a technique for preventing deterioration of the low-K film by performing an ashing process with a plasma generated from a mixed gas containing nitrogen and hydrogen that does not contain oxygen.
- Patent Document 2 Technology for aching by oxygen-free plasma using hydrogen-containing gas and fluorine-containing gas has been developed (see Patent Document 2).
- Patent Document 1 JP 2002-261092 A
- Patent Document 2 JP 2001-110775 A Disclosure of the invention
- ashing gas conditions that are completely different from conventional ones are required, such as hydrogen (H) and nitrogen (N).
- the present invention has been proposed in order to solve the above-described problems of the prior art.
- the purpose of the present invention is to use a low-K film (particularly, using a porous material) exposed on the wafer.
- Another object is to provide an ashing apparatus and an ashing method capable of reliably removing resist from a wafer while preventing deterioration of film quality.
- “%” representing the quantity ratio is based on mass unless otherwise specified.
- the present invention introduces a gas into a plasma generation chamber at least partially formed of a dielectric material, excites the gas to generate plasma, and low gas is generated by the gas plasma.
- a gas into a plasma generation chamber at least partially formed of a dielectric material, excites the gas to generate plasma, and low gas is generated by the gas plasma.
- a plasma is generated by exciting a reactive gas, and the resist on the object to be processed is removed by the generated hydrogen radicals.
- the ashing rate with a small change in dielectric constant is also high.
- an inert gas with H added as an ashing gas the ashing rate is increased while the dielectric is increased.
- the resist can be surely removed from c.
- the change of the ashing rate relative to the change of H is within the allowable range in terms of processing capacity, and stable ashing processing is performed. be able to.
- HO is added to the inert gas to which H is added, plasma is generated by the mixed gas, and the resist on the object to be processed is generated by the generated hydrogen radicals. Remove.
- H is further added to the inert gas to which H is added.
- the deactivation of H radicals is remarkably reduced, and as a result, the amount of H radicals reaching the upper limit is increased. it can. Thereby, the remaining peeling can be improved without extending the processing time. Further, as an incidental effect, the dielectric part such as the inner surface of the plasma generation chamber can prevent or reduce the reducing action of other members, thereby contributing to the extension of the life of the plasma generation chamber members.
- H 2 O is added to the inert gas at a ratio of 0.1% -5%.
- H ⁇ is added to the inert gas at a ratio of 0.1% -5%.
- the deactivation of H radicals can be significantly reduced, and as a result, the amount of H radicals reaching the woofer can be increased. As a result, it is possible to improve the peeling residue without extending the processing time. Further, as an incidental effect, the reducing action of other members can be prevented or reduced based on the dielectric portion such as the inner surface of the plasma generating chamber, which can contribute to the longer life of the plasma generating chamber member.
- O is added to the inert gas to which H is added, plasma is generated by the inert gas, and the resist on the object to be processed is removed by the generated hydrogen radicals. .
- ⁇ is added to the inert gas,
- the deactivation of H radicals can be significantly reduced, and as a result, the amount of H radicals reaching the woofer can be increased. As a result, it is possible to improve the peeling residue without extending the processing time.
- the dielectric part such as the inner surface of the plasma generation chamber
- the reducing action of other members can be prevented or reduced, which can contribute to the long life of the plasma generation chamber member.
- the inert gas is supplemented with ⁇ at a ratio of 0.01% —0.1%.
- the deactivation of H radicals can be remarkably reduced, and as a result, the amount of H radicals that reach 18 can be increased. As a result, it is possible to improve the peeling residue without extending the processing time. Further, as an incidental effect, the reducing action of other members can be prevented or reduced based on the dielectric portion such as the inner surface of the plasma generating chamber, which can contribute to the extension of the life of the plasma generating chamber member.
- the inert gas is composed of He.
- He has a high metastable energy, for example, H
- the ultraviolet light power contained in the plasma is linearly aligned with the object to be processed and the plasma generation chamber so that the object to be processed is not directly irradiated from the plasma generation chamber. It is characterized by the arrangement that is not irradiated.
- the ultraviolet light contained in the plasma generated inside the plasma generation chamber is removed before reaching the object to be processed, and only radicals are supplied to the surface of the object to be processed. As a result, the increase in the dielectric constant of the object to be processed due to the ultraviolet light hitting the object to be processed can be controlled.
- a mixed gas of soot and an inert gas is used as the asching gas.
- the process chamber 2 includes a vacuum vessel 1 inside a vacuum vessel 1 as shown in FIG.
- a mounting table 3 is provided in the process chamber 2, and a workpiece S is mounted on the mounting table 3.
- the mounting table 3 is provided with a temperature adjusting mechanism (not shown) so that the temperature of the workpiece S can be controlled by the temperature adjusting mechanism.
- the object to be processed includes silicon eno for manufacturing a semiconductor device, a glass substrate for a liquid crystal display device, and the like.
- An exhaust port 5 is formed in the bottom plate 4 of the vacuum container 1, and an exhaust pipe 6 having one end connected to a vacuum pump (not shown) is attached to the exhaust port 5.
- a gas introduction port 8 is formed at the center of the upper lid 7 constituting the top plate of the vacuum vessel 1, and a gas introduction tube 9 made of a fluororesin is attached to the gas introduction port 8.
- a plasma generation chamber member 10 is connected to the gas introduction pipe 9. Quartz (SiO 2), alumina (Al 2 O 3), sapphire, aluminum nitride, or the like can be used as the dielectric that forms the plasma generation chamber member 10.
- a sealing member 11 is attached to the other end of the plasma generation chamber member 10, and a gas flow path 19 is formed inside the sealing member 11.
- a gas control unit 20 for supplying ashing gas to the plasma generation chamber member 10 is provided at the other end of the gas transport pipe 18.
- a radical generator having a microwave waveguide 12 in the middle of the plasma generation chamber member 10 In other words, the plasma generation device 13 is provided so as to surround the plasma generation chamber member 10, and the plasma generation chamber 14 is formed inside the plasma generation chamber member 10 surrounded by the plasma generation device 13. Yes. Thus, the plasma generation chamber 14 is installed outside the vacuum vessel 1.
- a microwave generator 15 is connected to the microwave waveguide 12.
- radicals (etching species) introduced into the process chamber 2 through the gas inlet 8 provided in the upper lid 7 (top plate) of the vacuum vessel 1 are spread over the entire surface of the workpiece S.
- a chamber 17 is provided in the upper part of the process chamber 2 so as to form a gas storage chamber 16.
- the shower nozzle 17 has a number of gas outlets.
- the present embodiment is characterized by the component ratio of the ashing gas that is controlled by the gas control unit 20 when ashing is performed using the ashing apparatus as described above and is introduced into the plasma generation chamber member 10. That is, the ashing gas used in this embodiment is an inert gas to which H is added. Plasma is generated by these mixed gases, and the resist is removed by the generated hydrogen radicals. Examples of the inert gas used include helium (He) and argon (Ar).
- the gas ratio of H in the ashing gas is in the range of 1 to 20% of the total mass flow rate. As shown in FIG. 2, the ashing rate (A / R) is about 5% or more at which it is almost saturated. Is desirable.
- He has a higher metastable state energy than Ar, so that the ashing rate rises quickly even when a small amount of H is added. Therefore, in the region where the H ratio is around 5%, rate-saturated He is preferable because it has less fluctuation with respect to changes in the H ratio.
- He is an atom with almost the same mass as H, it can be expected that the ashing distribution in the woofer plane is more uniform in gas diffusion than in the case of using Ar. Therefore, it is more desirable to use He in order to perform stable processing work.
- the damage (degeneration) to the low-K film has no change in the dielectric constant as shown in FIG. 2 when He or Ar is used as the ashing gas when H is added. Good Results.
- the ashing rate is high as shown in FIG. 4, but the dielectric constant increases as shown in FIG. If it is significant, it will cause inconvenience.
- N although there is no damage to the low-K film, there is a problem with the processing capability as a resist removing device.
- the ashing gas is a mixture of N and 5% H, the ashing rate is He or
- the force S is equivalent to 5% H added to Ar, and the dielectric constant rises significantly.
- H is added to an inert gas such as He or Ar.
- an inert gas such as He or Ar.
- the ashing gas is added with / 0, the change in the dielectric constant is small.
- the ashsing rate is also high. In this way, by using a mixed gas of H and He or Ar as the ashing gas, the increase in dielectric constant can be suppressed while increasing the ashing rate, so that the deterioration of the film quality of the porous Low-K film is prevented, and the wafer is The resist can be reliably removed from the substrate.
- the total flow rate of the ashing gas can be lslm (standard liter / min) or more. Since the ashing rate can be increased as the flow rate increases, it is desirable to use about 7 slm.
- the processing pressure can be used in the region of 50 Pa-200 Pa.
- the dielectric constant increases.
- the ultraviolet light does not strike the workpiece S linearly because it is bent with respect to 8. It is also possible to adopt a configuration that blocks ultraviolet light, such as applying an ultraviolet light absorbing material to the shower nozzle 17. As a result, it is generated inside the plasma generation chamber member 10. The ultraviolet light contained in the plasma is removed before reaching the workpiece S, and only radicals are supplied to the surface of the workpiece S in the process chamber 2 via the shower nozzle 17.
- a CDE (Chemical Dry Etching) apparatus is described as an example.
- the shielding structure as described above of the present invention is not limited to this, and for example, a downflow type dry etching shown in FIG.
- a double structure is formed so that the positions of the holes of the shower nozzle (punching plate) are shifted, thereby preventing direct irradiation of ultraviolet light to the workpiece S.
- the ashing device in the second embodiment is a modification of the configuration of the ashing gas introduced from the gas control unit 20 in the first embodiment. Specifically, it is configured by adding 0.01% —0.1% O or 115% H 2 O to a mixed gas of H and He. Since other configurations are the same as those in the first embodiment, description thereof will be omitted.
- a peeling residue may occur after ashing.
- the plasma generation chamber member 10 is composed of SiO as described above, a gas containing H is supplied from the gas control unit 20 to excite hydrogen plasma in the plasma generation chamber 14, and this discharge time is several tens of hours. Then, SiO which is the plasma generation chamber member 10 is reduced to Si.
- the reduction by hydrogen plasma results in SiO force i, the deactivation of H radicals necessary for ashing becomes significant. For this reason, the ashing rate is usually lowered in several tens of hours, and this causes a peeling residue after ashing. Such peeling residue can be eliminated by extending the processing time, but this reduces the processing efficiency.
- FIG. 7 shows changes in ashing rate when H 2 O is added and changes in dielectric constant for the low-K film.
- Fig. 8 as a comparison with HO, the change in the dielectric constant when O is added is also shown.
- the change in dielectric constant is the same when H is added and when O is added, but the ashing rate is better when O is added.
- the allowable range for the HO accessory is 0.1-5%.
- the mixed gas of H and He introduced from the gas control unit 20 is 0.01%-0.1% ⁇ or 0.00. 1—5% HO
- the dielectric portion such as the inner surface of the plasma generation chamber can be used to prevent or reduce the reducing action of other members, thereby contributing to the extension of the lifetime of the plasma generation chamber member.
- the ashing apparatus or ashing method in the above embodiment can only be used for resist ashing on a wafer, for example, when directly etching a low-K film or removing a native oxide. It can also be used in an etching apparatus or an etching method.
- Ar or He is taken up as an example of the inert gas of the present invention, and Ne may be used in place of the force Ar explained that He is particularly suitable.
- Ne may be used in place of the force Ar explained that He is particularly suitable.
- the same effect can be expected although the uniformity of the treatment distribution is impaired by using heavy weight, Kr (krypton), Xe (xenon) or Rn (radon).
- the present invention is not realized only by these apparatuses.
- a device capable of performing ashing mainly composed of Nagura radicals is more preferable if it can block ultraviolet light.
- FIG. 1 is a configuration diagram showing a first embodiment of the present invention.
- FIG. 2 is a graph showing changes in ashing rate when H is added to an inert gas.
- FIG. 3 is a graph showing a change in dielectric constant when H is added to an inert gas.
- FIG. 4 is a graph showing changes in ashing rate when H is added to an inert gas.
- FIG. 5 is a partially enlarged view showing the configuration of the first embodiment of the present invention.
- FIG. 7 is a graph showing changes in ashing rate when HO is added to a mixed gas of H and He.
- FIG. 8 is a diagram showing a change in dielectric constant when HO or O is added to a mixed gas of H and He. Explanation of symbols
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Drying Of Semiconductors (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/574,571 US20080132078A1 (en) | 2004-09-01 | 2004-12-14 | Ashing Method And Ashing Apparatus |
EP04806990.0A EP1796153B1 (en) | 2004-09-01 | 2004-12-14 | Ashing method |
KR1020077007287A KR101156883B1 (ko) | 2004-09-01 | 2004-12-14 | 애싱 방법 및 애싱 장치 |
US13/031,538 US8524102B2 (en) | 2004-09-01 | 2011-02-21 | Ashing method and ashing device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-254248 | 2004-09-01 | ||
JP2004254248A JP4588391B2 (ja) | 2004-09-01 | 2004-09-01 | アッシング方法及びアッシング装置 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/574,571 A-371-Of-International US20080132078A1 (en) | 2004-09-01 | 2004-12-14 | Ashing Method And Ashing Apparatus |
US13/031,538 Division US8524102B2 (en) | 2004-09-01 | 2011-02-21 | Ashing method and ashing device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006025123A1 true WO2006025123A1 (ja) | 2006-03-09 |
Family
ID=35999787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/018629 WO2006025123A1 (ja) | 2004-09-01 | 2004-12-14 | アッシング方法及びアッシング装置 |
Country Status (7)
Country | Link |
---|---|
US (2) | US20080132078A1 (ja) |
EP (1) | EP1796153B1 (ja) |
JP (1) | JP4588391B2 (ja) |
KR (1) | KR101156883B1 (ja) |
CN (1) | CN100550315C (ja) |
TW (1) | TW200610052A (ja) |
WO (1) | WO2006025123A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG131051A1 (en) * | 2005-09-08 | 2007-04-26 | Lam Res Corp | A gas mixture for removing photoresist and post etch residue from low-k dielectric material and method of use thereof |
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Families Citing this family (16)
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---|---|---|---|---|
JP2008065944A (ja) * | 2006-09-08 | 2008-03-21 | Ulvac Japan Ltd | 磁性層パターンの形成方法、磁気抵抗素子の製造方法、及び磁気記憶媒体の製造方法 |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004087744A (ja) * | 2002-08-27 | 2004-03-18 | Hitachi Ltd | 半導体装置の製造方法 |
JP2004128252A (ja) * | 2002-10-03 | 2004-04-22 | Ulvac Japan Ltd | 多孔質絶縁膜のプラズマ処理方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4836902A (en) * | 1987-10-09 | 1989-06-06 | Northern Telecom Limited | Method and apparatus for removing coating from substrate |
US4961820A (en) * | 1988-06-09 | 1990-10-09 | Fujitsu Limited | Ashing method for removing an organic film on a substance of a semiconductor device under fabrication |
JPH06349786A (ja) * | 1993-06-04 | 1994-12-22 | Fujitsu Ltd | 半導体装置の製造方法 |
JPH10209118A (ja) * | 1997-01-28 | 1998-08-07 | Sony Corp | アッシング方法 |
US5968275A (en) * | 1997-06-25 | 1999-10-19 | Lam Research Corporation | Methods and apparatus for passivating a substrate in a plasma reactor |
US6551939B2 (en) * | 1998-03-17 | 2003-04-22 | Anneal Corporation | Plasma surface treatment method and resulting device |
JP2000183040A (ja) * | 1998-12-15 | 2000-06-30 | Canon Inc | 有機層間絶縁膜エッチング後のレジストアッシング方法 |
CN1124643C (zh) * | 1999-02-14 | 2003-10-15 | 中国科学院半导体研究所 | 磷化铟表面清洁方法 |
US6263830B1 (en) * | 1999-04-12 | 2001-07-24 | Matrix Integrated Systems, Inc. | Microwave choke for remote plasma generator |
US6281135B1 (en) | 1999-08-05 | 2001-08-28 | Axcelis Technologies, Inc. | Oxygen free plasma stripping process |
WO2001029879A2 (en) * | 1999-10-20 | 2001-04-26 | Mattson Technology, Inc. | Systems and methods for photoresist strip and residue treatment in integrated circuit manufacturing |
US20010024769A1 (en) * | 2000-02-08 | 2001-09-27 | Kevin Donoghue | Method for removing photoresist and residues from semiconductor device surfaces |
JP2002261092A (ja) | 2001-02-27 | 2002-09-13 | Nec Corp | 半導体装置の製造方法 |
US6630406B2 (en) * | 2001-05-14 | 2003-10-07 | Axcelis Technologies | Plasma ashing process |
JP2003092287A (ja) * | 2001-09-19 | 2003-03-28 | Nec Corp | アッシング方法 |
JP4177993B2 (ja) * | 2002-04-18 | 2008-11-05 | 株式会社ルネサステクノロジ | 半導体装置及びその製造方法 |
JP2004214336A (ja) * | 2002-12-27 | 2004-07-29 | Tokyo Electron Ltd | プラズマエッチング方法およびプラズマエッチング装置 |
WO2004107825A1 (ja) * | 2003-05-30 | 2004-12-09 | Tokyo Electron Limited | プラズマ源及びプラズマ処理装置 |
JP2005032750A (ja) * | 2003-07-07 | 2005-02-03 | Semiconductor Leading Edge Technologies Inc | 半導体装置の製造方法 |
JP4558296B2 (ja) * | 2003-09-25 | 2010-10-06 | 東京エレクトロン株式会社 | プラズマアッシング方法 |
WO2005055305A1 (ja) * | 2003-12-04 | 2005-06-16 | Tokyo Electron Limited | 半導体基板導電層表面の清浄化方法 |
-
2004
- 2004-09-01 JP JP2004254248A patent/JP4588391B2/ja not_active Expired - Lifetime
- 2004-12-14 EP EP04806990.0A patent/EP1796153B1/en not_active Not-in-force
- 2004-12-14 KR KR1020077007287A patent/KR101156883B1/ko active IP Right Grant
- 2004-12-14 US US11/574,571 patent/US20080132078A1/en not_active Abandoned
- 2004-12-14 CN CNB2004800442247A patent/CN100550315C/zh active Active
- 2004-12-14 WO PCT/JP2004/018629 patent/WO2006025123A1/ja active Application Filing
- 2004-12-16 TW TW093139188A patent/TW200610052A/zh unknown
-
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- 2011-02-21 US US13/031,538 patent/US8524102B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004087744A (ja) * | 2002-08-27 | 2004-03-18 | Hitachi Ltd | 半導体装置の製造方法 |
JP2004128252A (ja) * | 2002-10-03 | 2004-04-22 | Ulvac Japan Ltd | 多孔質絶縁膜のプラズマ処理方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8500953B2 (en) | 2005-08-08 | 2013-08-06 | Lam Research Corporation | Edge ring assembly with dielectric spacer ring |
US8911589B2 (en) | 2005-08-08 | 2014-12-16 | Lam Research Corporation | Edge ring assembly with dielectric spacer ring |
SG131051A1 (en) * | 2005-09-08 | 2007-04-26 | Lam Res Corp | A gas mixture for removing photoresist and post etch residue from low-k dielectric material and method of use thereof |
US7479457B2 (en) | 2005-09-08 | 2009-01-20 | Lam Research Corporation | Gas mixture for removing photoresist and post etch residue from low-k dielectric material and method of use thereof |
US8038836B2 (en) | 2007-09-28 | 2011-10-18 | Tokyo Electron Limited | Plasma processing apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP1796153A4 (en) | 2008-11-05 |
JP4588391B2 (ja) | 2010-12-01 |
US8524102B2 (en) | 2013-09-03 |
TW200610052A (en) | 2006-03-16 |
CN101065833A (zh) | 2007-10-31 |
US20110143546A1 (en) | 2011-06-16 |
KR101156883B1 (ko) | 2012-06-20 |
US20080132078A1 (en) | 2008-06-05 |
TWI369735B (ja) | 2012-08-01 |
KR20070057224A (ko) | 2007-06-04 |
EP1796153A1 (en) | 2007-06-13 |
JP2006073722A (ja) | 2006-03-16 |
EP1796153B1 (en) | 2013-06-26 |
CN100550315C (zh) | 2009-10-14 |
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