WO2004081665A1 - 化学増幅型ポジ型レジスト組成物 - Google Patents
化学増幅型ポジ型レジスト組成物 Download PDFInfo
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- WO2004081665A1 WO2004081665A1 PCT/JP2004/003162 JP2004003162W WO2004081665A1 WO 2004081665 A1 WO2004081665 A1 WO 2004081665A1 JP 2004003162 W JP2004003162 W JP 2004003162W WO 2004081665 A1 WO2004081665 A1 WO 2004081665A1
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- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
-
- 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
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
- G11B5/3106—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing where the integrated or assembled structure comprises means for conditioning against physical detrimental influence, e.g. wear, contamination
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
- Y10S430/114—Initiator containing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
- Y10S430/114—Initiator containing
- Y10S430/115—Cationic or anionic
Definitions
- the present invention provides a positive resist composition in which the transmittance at a wavelength of 248 nm in a predetermined resist film formed from a chemical width-type positive resist composition is adjusted to a specific range, and the transmittance is suppressed. And a method for forming a pattern of a magnetic film using such a resist composition.
- the improvement in recording density of magnetic recording media is making remarkable progress, but further miniaturization of magnetic heads is required to further increase the recording density.
- the read portion (read head portion) of a magnetic head it is necessary to form a fine resist pattern (isolated pattern), thereby forming a fine magnetic film pattern. It is necessary to make the shape of the shape nearly rectangular. .
- a method of ionizing a magnetic film is used to manufacture a fine structure in a lead portion of a magnetic head.
- the method is performed as follows. Ion milling is widely used as ionic etching.
- 1A to 1E show schematic diagrams (side sectional views) of general steps of electrode formation by ion milling and sputtering.
- a magnetic film 2 is laminated on a substrate 1, and a base film 3 ′ soluble in an alkali developer and a resist film 4 ′ are further laminated thereon. I do.
- selective exposure is performed from above the resist film 4 'through a mask pattern using light such as i-line or KrF excimer laser.
- alkali development is performed, a predetermined range of the resist film 4 (exposed portion if positive, unexposed portion if negative) is fully developed, and the resist pattern 4 having a substantially rectangular cross section is developed. Is obtained.
- the underlying film 3 'located under the alkali-developed portion of the resist film 4' is also removed by the alkaline developing solution together.
- the underlayer B 3 ' is more alkaline soluble than the resist film 4, As shown in Fig. 1B, the pattern 3 of the base film 3 'with a narrow width and the resist pattern 4 of the wider resist film 4, as shown in Fig. The following pattern 5 is obtained.
- the magnetic film 2 ′ around the pattern 5 is etched as shown in FIG. 1C, and the magnetic film pattern 2 is formed below and around the pattern 5. Is done.
- an electrode film 6 is formed on the pattern 5 and on the substrate 1 around the magnetic film pattern 2 as shown in FIG. 1D.
- the pattern 3 of the base film 3 ′ is dissolved by using an alkali developing solution, so that the resist pattern 4 of the resist film 4 ′ is removed, and the substrate 1 and the top are formed as shown in FIG.
- a magnetic head 10 composed of the magnetic film pattern 2 having a predetermined width and the electrode film 6 formed around the magnetic film pattern 2 can be obtained.
- a fine trench-type resist pattern is formed as shown in, for example, FIGS. 2A to 2C (side sectional views).
- FIGS. 2A to 2C side sectional views.
- a plating seed layer 11 is formed on an upper surface of a substrate (not shown) having a desired laminated structure formed on a substrate, and the above-described conventional lithography is performed thereon.
- a slit-shaped resist pattern 12 having a substantially rectangular cross section is obtained.
- a magnetic film 13 ′ is formed by applying plating to a trench portion (concave portion) surrounded by the obtained resist pattern 12.
- Patent Document 1 listed below proposes a method of forming a tapered resist pattern using a non-chemically amplified novolak positive resist composition.
- the resist pattern 4 has a substantially rectangular pattern 5 (hereinafter, such a resist pattern is simply referred to as a “rectangular resist pattern”).
- the printed magnetic film pattern 2 becomes wider toward the substrate 1 due to the anisotropy of the ion milling, for example, as shown in FIG. 1C. It becomes a trapezoidal (tepper) shape. With such a trapezoidal cross-section, that is, the angle of the trapezoidal cross-section (If the angle in FIG.
- the magnetic film pattern 13 has a rectangular shape, it is difficult to increase the density of the magnetic recording. Therefore, as shown by the broken line in FIG. It is desired that the side walls of 13 have an inverted tapered shape.
- the resist pattern is tapered by using a non-chemical amplification type resist and performing exposure processing so as to shift the focal depth width.
- a non-chemical amplification type resist when such a method is applied to a chemically amplified resist, the resolution of the resist pattern is insufficient, and the depth of focus is insufficient, so that the tapered resist pattern cannot be reproduced stably. Therefore, if ion milling is performed using such a resist pattern, a fine magnetic film pattern cannot be formed, the size of the magnetic film pattern on the substrate will vary, and the side wall of the magnetic film pattern on the substrate will not be formed. There is a problem that the inclination angle ( ⁇ 2 , ⁇ 3 ′ described later) varies. Disclosure of the invention
- the present invention has been made in view of the problems of the prior art, and is capable of forming a fine resist pattern.
- theta 3 can be controlled to a suitable angle, also aims to provide a positive resist composition capable of forming a resist pattern which is excellent in depth of focus.
- Another object of the present invention is to provide a method for forming a pattern of a magnetic film using such a positive resist composition.
- the above problem is that a resist film having a thickness of 0.3 ⁇ formed from a chemically amplified positive resist composition has a transmittance of light of wavelength 248 nm of 20 to 75%.
- the problem can be solved by a positive resist composition characterized by the following.
- the present invention provides a method for forming a resist pattern having a tapered side wall on a magnetic film provided on a substrate by using a positive resist composition of the present invention via a base film.
- a method of forming a pattern of a magnetic film comprising a step of ionic etching the magnetic film using a pattern as a mask.
- a resist pattern having a tapered side wall is formed on a plating seed layer provided on a substrate by using the positive resist composition of the present invention, and then a concave portion surrounded by the resist pattern is formed.
- a method for forming a pattern of a magnetic film the method further comprising the step of forming a magnetic film by a plating method.
- the “resist pattern having a tapered side wall in the cross section” in the first embodiment (mode) of the present invention described later is an isolated resist pattern having a tapered shape.
- the “concave portion surrounded by the resist pattern” in the embodiment (mode) is a trench pattern, and the cross-sectional shape of the trench portion is an inversely tapered shape.
- a fine and good tapered resist pattern or a fine and good reverse tapered trench pattern can be obtained with a sufficient depth of focus.
- a fine magnetic film pattern having a desired shape can be formed with good reproducibility.
- FIGS. 1A to 1E are schematic diagrams for explaining a step of forming a magnetic film pattern by a method of ionic etching using a resist pattern as a mask.
- FIG. 2A to 2C are schematic diagrams for explaining a step of forming a magnetic film pattern by a plating method using a resist pattern as a frame.
- 3A to 3E are diagrams for explaining a step of forming a magnetic film pattern by an ionic etching method using a tape-shaped resist pattern formed using the positive resist composition according to the present invention.
- FIG. 2A to 2C are schematic diagrams for explaining a step of forming a magnetic film pattern by a plating method using a resist pattern as a frame.
- 3A to 3E are diagrams for explaining a step of forming a magnetic film pattern by an ionic etching method using a tape-shaped resist pattern formed using the positive resist composition according to the present invention.
- 4A to 4D are schematic diagrams for explaining a step of forming a magnetic film pattern by a plating method using a tape-shaped resist pattern formed using the positive resist composition according to the present invention. It is. BEST MODE FOR CARRYING OUT THE INVENTION
- first mode an embodiment in which the positive resist composition of the present invention is applied to a lead portion of a magnetic head
- second mode an embodiment in which the positive resist composition of the present invention is applied to a lead portion of a magnetic head
- the positive resist composition according to the present invention has a transmittance of light having a wavelength of 248 nm of a resist film having a thickness of 0.3 ⁇ formed from the chemically amplified positive resist composition, 20 to It is a positive resist composition characterized by being 75%.
- the light transmittance at 248 nm in the present invention can be measured by the following known method which has been conventionally performed.
- a chemically amplified positive resist composition is applied on a quartz substrate using a spin coater, and then heated to evaporate the solvent, thereby forming the positive resist composition.
- a resist film having a thickness of 0.3 ⁇ is formed.
- the heating temperature at this time may be a normal temperature for evaporating the solvent and forming a resist film. Specifically, heating may be performed at 90 to 120 ° C. for 60 to 90 seconds.
- the resist film thus formed is used as a sample for measurement, and the light transmittance is measured.
- the setting wavelength of the measuring device is 248 nm.
- an absorptiometer such as UV-250 PC (manufactured by Shimadzu Corporation) can be used.
- 3A to 3E relate to the first embodiment. That is, these figures are schematic views (side sectional views) of the respective steps in the case where a resist pattern is formed using the positive resist composition according to the present invention and the magnetic film is used for ionic etching. Show. The details of the method of forming a resist pattern, ionic etching, etc. will be described later.
- the obtained resist pattern has an appropriate tapered shape (a tapered isolated pattern). When the etching is performed, the shape of the magnetic film pattern becomes closer to a rectangle than the conventional taper shape (however, it is not a perfect rectangle) and becomes a moderate shape.
- FIGS. 4A to 4D relate to the second embodiment. That is, these figures show the case where a resist pattern is formed using the positive resist composition according to the present invention, and a magnetic film is formed by a plating method in a concave portion surrounded by the resist pattern, that is, a trench portion. A schematic diagram (side sectional view) of each step is shown. The details of the method of forming the resist pattern, the formation of the magnetic film, and the like will be described later, but in the present embodiment, the obtained resist pattern has an appropriate taper shape (the space portion of the trench pattern has an inverted taper shape). When the frame is subjected to plating, the shape of the obtained magnetic film pattern becomes an appropriate reverse tapered shape.
- the positive resist composition according to the present invention has a transmittance of 20 to 75% at a wavelength of 248 nm of a resist film having a thickness of 0.3 ⁇ , Since it has a high absorption capacity at 8 nm, it can be selected by using a KrF excimer laser (2 48 nm) through a desired mask pattern on the resist films 4 ′ and 12 ′ using the resist composition.
- a KrF excimer laser (2 48 nm)
- the resists B 4 ′ and 1 2 ′ partially collect light from the light source. Therefore, the lower part of the resist film 4 ′, 12, which is farther from the light source, is less affected by the exposure, and when alkali development is performed, as shown in FIG. 3B and FIG.
- the side wall in the sectional shape of 12 has a tapered shape in which the width increases toward the substrate 1.
- the side wall in the cross-sectional shape of the trench portion has an inverted tapered shape in which the width decreases toward the substrate 1.
- the positive resist composition of the present invention has a thickness of 0.05 to 3.0 ⁇ , preferably 0.1 to :! ⁇ Can be used in the range of 5 ⁇ .
- the side wall of the resist pattern 4 has a tapered shape, and a pattern 5 combining the resist pattern 4 and the base film pattern 3 (hereinafter, such a pattern is simply referred to as a “tapered shape”). Is sometimes called pattern j.)
- a pattern 2 with a cross section that is almost rectangular as shown in Fig. 3C can be used.
- ⁇ 2 ′ of FIG. 3C is smaller than that of FIG. 1C (however, ⁇ 2 ′ is not 90 °), and a magnetic film pattern 2 having a good shape can be obtained.
- the formation of such a magnetic film pattern 2 is preferable because the density of a GMR element such as a magnetic head can be increased, and defects in element characteristics such as read noise and signal failure can be reduced.
- the side wall of the resist pattern 12 is tapered (the space of the trench pattern is reversely tapered).
- the side wall of the magnetic film 13 ′ is formed in an inversely tapered shape. That is, as shown in FIG. 4D, a reversely tapered magnetic film pattern 13 whose width decreases toward the substrate side can be favorably formed.
- the magnetic film pattern written on the recording medium has an inverted tapered shape.
- the magnetic head provided with the write portion on which such a magnetic film pattern 13 is formed, the magnetic film pattern written on the recording medium (hard disk) has an inverted tapered shape.
- the positive resist composition is prepared by forming a resist film having a thickness of 0.3 ⁇ when the resist film is formed.
- the light transmittance at 248 nm is preferably from 20 to 60%, and more preferably from 35 to 45%.
- the side wall of the perpendicular line and the register strike pattern 4 relative to the bottom surface of the resist pattern 4 is the angle theta 2, called the taper angle.
- the taper angle of the resist pattern can be controlled to 3 to 20 °.
- the formed magnetic film pattern 2 does not become a trapezoidal cross section in which the width becomes wider toward the substrate 1, but has a magnetic film pattern shape (a 1 / ⁇ shape close to a rectangle) as shown in FIG. 3C. This is preferable because a good magnetic film pattern having an appropriate tapered shape can be obtained.
- ⁇ 2 ' is a shape close to a rectangle. Means In the case of a completely rectangular shape, ⁇ 2 ′ is 0 °. However, in this case, the signal of the magnetic head may be defective, which is not preferable.
- a positive resist composition is used in the case where a resist film having a thickness of 0.3 ⁇ is formed.
- the light transmittance at 248 nm is preferably from 20 to 75%, and more preferably from 40 to 65%.
- the perpendicular line and Les resist pattern 1 2 sidewall and an angle theta 3 is relative to the bottom surface of the resist pattern 1 2, referred to the taper angle.
- the taper angle of the resist pattern is 1 to 30. Can be controlled.
- the taper angle is more preferably from 1 to 20 °, further preferably from 2 to 15 °, and most preferably from 3 to 10 °.
- the magnetic film 13 ′ By forming the magnetic film 13 ′ by plating in the recess surrounded by the resist pattern having such a taper angle, it has a moderate reverse taper shape as shown in FIG. 4D. This is preferable because a good magnetic film pattern 13 can be obtained.
- the resist composition of the present invention In order for the positive resist composition of the present invention to have absorptivity at 248 nm as described above, the resist composition must be a substance having an absorptivity at 248 nm (hereinafter referred to as component (A)). ).
- a substance having “absorbing ability” means that when a resist film having a film thickness of 0.3 ⁇ ⁇ is formed by adjusting the compounding ratio and the like, the light at 248 nm of the resist film is formed. Means that the transmittance can be 20 to 75%. If the substance has a high absorption capacity, it may be added in a small amount. Conversely, if the substance has a low absorption ability, it may be added in a large amount as long as the object of the present invention is achieved. [Substance with absorbance at 248 nm (A)]
- the component (A) is not particularly limited as long as it has an absorbency at 248 nm, and for example, a low molecular weight compound such as a dye, And high molecular weight compounds. More specifically, the following substances can be exemplified.
- (a 1) A substance having an anthracene ring as a partial structure. (Hereinafter referred to as (a1).)
- (a 2) A substance having a benzene ring as a partial structure (hereinafter, referred to as (a 2)).
- (a3) A substance having a naphthalene ring as a partial structure. (Hereinafter referred to as (a 3).)
- (a 4) A substance having bisphenyl as a partial structure.
- (a l) ′ may be a substance having an anthracene ring as a partial structure.
- Such substances include, for example, dyes such as anthracene methanol, anthracene ethanol, anthracene olenoic acid, anthracene, methinoleanthracene, dimethinoleantracene, and hydroxyanthracene.
- dyes such as anthracene methanol, anthracene ethanol, anthracene olenoic acid, anthracene, methinoleanthracene, dimethinoleantracene, and hydroxyanthracene.
- anthracene methanol is particularly preferred. This is because the taper angle of the resist pattern can be easily controlled.
- (a 2) may be any substance having a benzene ring as a partial structure.
- examples of such a substance include alkynolebenzene such as benzene, methylbenzene and ethylbenzene, benzyl alcohol, cyclohexylbenzene, benzoic acid, salicylic acid, dyes such as anisol, and resins such as novolak resin.
- the novolak resin is obtained, for example, by subjecting an aromatic substance having a phenol ten-hydroxyl group (hereinafter, simply referred to as “phenols”) to an aldehyde with an addition condensation under an acid catalyst.
- phenols phenol ten-hydroxyl group
- the phenols used include, for example, phenol, 0-creso-nore, m-creso-no-re, p-creso-no-re, 0-ethino-leo-no-no-le, m-ethino-le-no-no-no-le, p-ethyi-phenol, o- -Butylphenol, m-butylphenol, P-butylphenol, 2,3-xylenol, 2,4-xylenol, 2,5-xylenolone, 2,6-xylenolone, 3,4-xylenolone, 3,5-xylenol , 2, 3, 5-trimethylphenol, 3, 4, 5-trimethylphenol
- p-pheninolephenone, resonoresino-note hydroquinone, hydroquinone monomethinoleate, pyrogallonole, phloroglicino
- aldehydes examples include formaldehyde, bullfural, benzaldehyde, nitrobenzaldehyde, and acetoaldehyde.
- the catalyst used in the addition condensation reaction is not particularly limited.
- an acid catalyst hydrochloric acid, nitric acid, sulfuric acid, formic acid, oxalic acid, acetic acid and the like are used.
- the nopolak resin preferably has a mass average molecular weight (in terms of polystyrene, the same applies hereinafter) of 100 to 300,000.
- (a 3) may be a substance having a naphthalene ring as a partial structure.
- a substance include dyes such as naphthalene, methylnaphthalene, dimethylnaphthalene, ethynolenaphthalene, 11-naphthol, 2-naphthol, naphthalenedionolole, and naptalentriol.
- (a 4) may be a substance having bisphenyl as a partial structure.
- a substance having bisphenyl as a partial structure examples include dyes such as biphenyl, dimethylbiphenyl, biphenylol, biphenyldiol, biphenyltetraol and the like.
- the component (A) one type of substance may be used, or two or more types may be used in combination.
- (a1) is preferably a substance having an anthracene ring as a partial structure in order to achieve a desired transmittance, and among them, anthracene methanol is particularly preferred because of its excellent sensitivity margin and depth of focus.
- the amount of the component (A) used may be appropriately changed depending on the absorption capacity of the component (A), and is not particularly limited.
- the taper angle of the resist pattern can be adjusted by the content of the component (A), and as a result, the shape of the magnetic film pattern can be controlled.
- (A) when a resist film having a thickness of 0.3 ⁇ is formed, (A) is formed so that the light transmittance of the resist film at 248 nm is in the range of 20 to 75%.
- the amount may be, for example, 0.01 to 20 parts by mass, more preferably 0.2 to 8.0 parts by mass, per 100 parts by mass of the component (B).
- the amount of the component (A) used in the first embodiment is, for example, preferably from 1 to 20 parts by mass, more preferably from 2 to 8 parts by mass, based on 100 parts by mass of the component (B). And a preferable tapered resist pattern can be obtained.
- the amount of the component (A) used in the second embodiment is, for example, preferably 0.01 to 20 parts by mass, more preferably 0.01 to 5 parts by mass, per 100 parts by mass of the component (B). In the mass range, a suitable absorption capacity can be obtained, and a preferable tapered resist pattern can be obtained.
- the amount of the component (A) exceeds 20 parts by mass with respect to 100 parts by mass of the component (B), the absorbability of the resist composition at 248 nm is excessively reduced, and a good resist pattern is obtained. There is a possibility that it cannot be formed.
- the positive resist composition containing the component (A) is not particularly limited. Examples thereof include a substance (A) having an absorption capacity at 248 nm and an acid dissociable, dissolution inhibiting group, A resin component (B), which increases alkali solubility by exposure to light, an acid generator component (C), which generates an acid upon exposure, and an organic solvent which dissolves these components (A), (B) and (C) And (D) are preferred because the resist pattern can easily obtain the resolution and the tapered shape of the resist pattern.
- the alkali solubility of the exposed portion increases, and the development of the resist can do.
- the positive resist composition according to the present invention includes, for example, a KrF posi-type resist composition proposed as a resist material suitable for a method of exposing using a KrF excimer laser, (A
- the resist composition to which the component (1) is added can be suitably used.
- each component described below is used in a usual manner. It is only necessary to mix and stir by a method, and if necessary, the mixture may be dispersed and mixed using a disperser such as a dissolver, a homogenizer, or a three-roll mill. After mixing, the mixture may be further filtered using a mesh or a membrane filter.
- a disperser such as a dissolver, a homogenizer, or a three-roll mill.
- the mixture may be further filtered using a mesh or a membrane filter.
- the component (B) used in the present invention is not particularly limited as long as it has been conventionally used as a resin for a positive resist composition.
- a component unit derived from hydroxystyrene and an acid dissociable, dissolution inhibiting group can be used. Those having a plurality of different structural units are preferred.
- a resin having a combination of the following units is preferable because it is excellent in resolution of a resist pattern, ease of forming a tapered shape, and depth of focus.
- (b 1) a structural unit derived from hydroxystyrene (hereinafter referred to as (b 1) unit ⁇ ⁇
- (b 2) Structural units derived from styrene (hereinafter referred to as (b 2) units).
- (b 3) A structural unit derived from a (meth) acrylate ester having an acid dissociable, dissolution inhibiting group (hereinafter, referred to as a (b 3) unit).
- (meth) acrylic acid refers to one or both of methacrylic acid and acrylic acid.
- structural unit refers to a monomer unit constituting the polymer.
- the (b1) unit may be, for example, an ethylenic double of hydroxystyrene such as hydroxystyrene such as p-hydroxystyrene, ⁇ -alkylhydroxystyrene such as ⁇ -methynolehydroxystyrene, and ⁇ -ethylhydroxystyrene. It is a structural unit derived by cleavage of a bond. Of these, units derived from ⁇ -hydroxystyrene and ⁇ -methylhydroxystyrene are particularly preferred.
- the unit for example, the ethylenic double bond of styrene, chlorostyrene, chloromethynostyrene, butyltoluene, ⁇ -methylstyrene, or other styrene having a substituent such as an alkyl group is cleaved. It is a structural unit derived by Of these, units derived from styrene are particularly preferred. (b 3) The unit is a structural unit derived from a (meth) acrylate having an acid dissociable, dissolution inhibiting group.
- the acid dissociable, dissolution inhibiting group in (b 3) has alkali dissolution inhibition 14 that renders the entire component (B) alkali-insoluble before exposure, and dissociates after exposure due to the action of the acid generated from component (C).
- the component (B) can be used without any particular limitation as long as it changes the entire component to alkali-soluble.
- a carboxyl group of (meth) ′ acrylic acid and a group forming a cyclic or chain tertiary alkyl ester, a tertiary alkoxycarbonylalkyl group, or a chain or cyclic alkoxyalkyl group are included. Widely known.
- Examples of the acid dissociable, dissolution inhibiting group include tert-butyl group, tert-pentyl group, 1-methylcyclopentyl group, 1-pentylose pentynole group, 1-methylcyclyl hexyl group, 1-ethylcyclyl hexyl group, and 2 -Chain-like alkoxy such as branched, monocyclic and polycyclic tertiary alkyl groups such as 2-methyl-adamantyl group and 2-ethyl- 2-adamantyl group, 1-ethoxyethoxyl group, and 1-methoxypropyl group Cyclic alkoxyalkyl groups such as alkyl group, tetrahydrofuraninole group, and tetrahydrovilanyl group; and tertiary alkoxycarbonylalkyl groups such as tert-butoxycarbonylmethyl group and tert-butoxycarbonylethyl group.
- the composition of the component (B) is such that the (b1) unit is 50 to 50% of the total of the constituent units constituting the component (B). 80 mole 0/0, preferably when is 60-70 mol%, excellent al force re developability, preferably les.
- the unit (b2) is from 0 to 35 mol%, preferably from 5 to 35 mol%, based on the total of the constituent units constituting the component (B), the film shape is not reduced, and the pattern shape is excellent. preferable.
- the resolution is excellent and preferable.
- the weight average molecular weight of the resin component (B) is not particularly limited, but is preferably 3,000 to 50,000, more preferably 400 to 50,000. 0 to 300000. If it is larger than this range, the solubility in the resist solvent becomes poor, and if it is smaller, the resist pattern may be reduced in film thickness.
- an arbitrary one can be appropriately selected from conventionally known acid generators in a chemically amplified resist.
- acid generators preferred are those salts of fluorinated alkylsulfonates with anions.
- preferred acid generators include diphenol-trifluoromethane trinoleolomethanesnolefonate, heptafnorolelopropanesnolefonate or nonafluorobutanesulfonate, bis (4-tert-peptinolephenyl) odonium.
- Trifnoreomethantholephonate its heptafluorop Mouthpansulfonate or its nonafluorobutanesulfonate, (4-methoxy.phenyl) phenylene Honate or its nonafreolobutane sulfonate, tri (4-methinorefue-nore) trinolenorium trifnoroleolomethanesnolefonate, its heptafluoropropane sulfonate or its nonaphnoleolobutanesnorfone Trifluoromethanesulfonate of (4-methinolephenyl) diphenylsulfonium, heptafluoropropanesulfonate or nonafluorobutanesulfonate, trifluoromethanesulfonate of dimethyl (4-hydroxynaphthynole), hepta Fluoropropanesulfon
- one type of acid generator may be used alone, or two or more types may be used in combination.
- Component (C) is used in an amount of 0.5 to 30 parts by mass, preferably 1 to 10 parts by mass, per 100 parts by mass of component (B). If the amount is less than 0.5 part by mass, pattern formation may not be sufficiently performed. If the amount exceeds 30 parts by mass, a uniform solution may not be easily obtained, and storage stability may be deteriorated.
- the positive resist composition according to the present invention comprises the component (A), the component (B), the component (C), and an optional component (E) or component (F) described below in an organic solvent ( D).
- any solvent can be used as long as it can dissolve the component (A), the component (B) and the component (C) to form a uniform solution. Any one or two or more types can be appropriately selected from those known in the art and used.
- Examples of the organic solvent (D) include ketones such as acetone, methyl ethyl ketone, cyclohexanone, methyl isoamyl ketone, and 2-heptanone; ethylene glycolone, ethylene glycolone monoacetate, diethylene glycolone, and ethylene. Glycol monoacetate, propylene glycol / re, propylene glycol monoacetate, dipropylene glycol, or dipropylene daricol monoacetate monomethyl ether, monoethyl ether, monopropynol ether, monobutyl ether or monophenyl ether, etc.
- ketones such as acetone, methyl ethyl ketone, cyclohexanone, methyl isoamyl ketone, and 2-heptanone
- ethylene glycolone ethylene glycolone monoacetate, diethylene glycolone, and ethylene.
- cyclic ethers such as dioxane, methyl lactate, ethyl lactate, methyl acetate, ethyl acetate, butyl acetate, methyl pyruvate, ethyl pyruvate, methyl methoxypropionate, ethyl ethoxypropionate, etc. Esters and the like can be mentioned.
- organic solvents may be used alone or as a mixed solvent of two or more.
- the content of the organic solvent (D) is appropriately set according to the resist film thickness in a range where the solid content concentration of the positive resist composition is in the range of 3 to 30% by mass.
- the positive resist composition according to the present invention includes a resist pattern shape, a post-deposition stability characteristic, a post exposure stability of the latent image formed by the pattern wise exposure of the resist layer, and the like.
- an optional component (E) a known amine, preferably a secondary lower aliphatic amine ⁇ tertiary lower aliphatic amine can be contained.
- the lower aliphatic amine refers to an alkyl or alkyl alcohol having 5 or less carbon atoms.
- the secondary and tertiary amines include trimethylamine, getylamine, triethylamine, and di-n.
- —Propylamine, tree n Provides a prophylactic acid, acetyl alcohol, acetyl alcohol, acetyl alcohol, acetyl alcohol, etc.
- alkanolamines such as triethanolamine being particularly preferred.
- These may be used alone or in combination of two or more.
- These amines are usually used in the range of 0.01 to 5.0 parts by mass based on 100 parts by mass of the component (B).
- an organic carboxylic acid or an oxo acid of phosphorus or a derivative thereof may be further contained as an optional component (F).
- the component (E) and the component (F) can be used in combination, or one of them can be used.
- organic carboxylic acid for example, malonic acid, citric acid, malic acid, succinic acid, benzoic acid, salicylic acid and the like are suitable.
- Phosphorus oxo acids or derivatives thereof include phosphoric acid, di-n-butyl phosphate Ester, phosphoric acid such as diphenyl phosphate, or derivatives such as esters thereof, phosphonic acid, dimethyl phosphonate, di-n-butynolestenol phosphonate, feninolephosphonic acid, diphenylphosphonate phosphonate, phosphone Phosphonic acids such as acid dibenzyl esters and derivatives thereof such as esters; phosphinic acids such as phosphinic acid and phenylphosphinic acid; and derivatives such as estenole thereof. preferable. '
- the component (F) is used in an amount of 0.01 to 5.0 parts by mass per 100 parts by mass of the component (A).
- the positive resist composition according to the present invention may further contain a miscible additive such as an additional resin for improving the performance of the resist film, a surfactant for improving coatability, a dissolution inhibitor, Agents, plasticizers, stabilizers, coloring agents, antihalation agents and the like can be appropriately added and contained.
- a miscible additive such as an additional resin for improving the performance of the resist film, a surfactant for improving coatability, a dissolution inhibitor, Agents, plasticizers, stabilizers, coloring agents, antihalation agents and the like can be appropriately added and contained.
- the resist composition of the present invention is used for forming a resist pattern for ionic etching in which a film to be etched is a magnetic film.
- ionic etching include anisotropic etching such as ion milling.
- 3A to 3E are schematic views (side sectional views) of the steps of resist pattern formation and ionic etching using the positive resist and the composition according to the first embodiment.
- a magnetic film 2 ' is formed on a substrate 1 such as a silicon wafer by a sputtering apparatus.
- the magnetic material used for the magnetic film 2 ′ include those containing elements such as Ni, Co, Cr, and Pt.
- a coating solution for forming a base film that is soluble in an alkaline developer, for example, polymethylglutarimide (hereinafter referred to as PMGI and ) Is applied by a spin coater and dried to form a lower layer film 3 ′.
- the solution of the resist composition prepared as described above is applied onto the lower film 3 ′.
- pre-beta PAB treatment
- the prebaking conditions vary depending on the type of each component in the composition, the mixing ratio, and the thickness of the coating B, but are usually 70 to 150 ° C, preferably 80 to 140 ° C. , 0.5 to 60 minutes.
- the thickness of the formed resist film 4 is preferably from 0 to 0.5 to 1.5 ⁇ from the viewpoint of control of the taper shape, and most preferably from 0.1 to 0.5 ⁇ . preferable.
- the resist film 4 ' is selectively exposed through a desired mask pattern.
- a KrF excimer laser can be suitably used because the positive resist composition according to the present invention has an absorption capacity of 248 nm.
- PEB post-exposure baking
- development processing is performed using an alkaline developing solution composed of an alkaline aqueous solution.
- an alkaline developing solution composed of an alkaline aqueous solution.
- the underlying film 3 ′ located below the partially developed portion of the resist film 4 ′ is removed together with the alkaline developer, but the underlying film 3 ′ is more alkaline than the resist film 4 ′.
- the base film 3 ′ located under the portion where the resist pattern 4 is formed remains after the pressure development, only near the center of the pattern 4. As a result, as shown in FIG.
- the pattern 3 of the base film 3 ′ having a narrow width and the resist pattern 4 of the resist film 4 ′ having a wider width and a tapered shape are used to form a lift-off pattern 5 having a cross section of a feather plate shape. I get;
- the magnetic film pattern 2 is printed in a shape close to a rectangle (range of o es ⁇ Si).
- a conventionally known method can be applied to the ion milling. For example, it can be performed by using an ion beam milling machine IML series manufactured by Hitachi, Ltd.
- an electrode film 6 is formed on the pattern 5 and on the substrate 1 around the magnetic film pattern 2 as shown in FIG. 3D.
- a conventionally known method can be applied.
- the sputtering can be performed by using a sputtering apparatus ISM-200 or ISP-1801 manufactured by Hitachi, Ltd.
- the contact portion with the electrode film 6 becomes smaller than before, the reading noise decreases, and at the same time, ⁇ 2 ′ becomes 0. . This can reduce the possibility that the magnetic film pattern is not a perfect rectangle, and the likelihood of the occurrence of signal defects and signal defects.
- a taper-shaped magnetic film pattern having substantially good rectangularity can be formed. Can be.
- a fine resist pattern can be formed, the taper angle ⁇ 2 (FIG. 3A) of the resist pattern can be controlled to an appropriate angle, and the depth of focus can be controlled.
- a resist pattern having excellent resistance can be formed.
- a fine magnetic film pattern can be formed by ionic etching of the magnetic film via the tapered resist pattern, and the angle ⁇ 2 ′ (FIG. 3C) of the side wall of the magnetic film pattern can be adjusted appropriately.
- the magnetic film pattern can be formed at a stable angle and its size and angle can be formed stably.
- the resist composition of the present invention is used for forming a resist pattern used as a frame when a magnetic film is formed by plating.
- a plating method an electroplating plating method, which is a known plating method, can be used.
- FIGS. 4A to 4D are schematic views (side sectional views) showing the steps of forming a resist pattern and forming a magnetic film using the positive resist composition according to the second embodiment.
- a resist film 12 ′ is formed on the seed layer 11 of the base material on which the seed layer 11 is provided as the uppermost layer.
- the base material is, for example, a magnetic film pattern, a flattening film, a shield layer, etc., which constitutes a lead portion, are laminated as necessary on a substrate 1 such as a silicon wafer, and a mask seed layer is formed as a top layer. Those having 11 formed thereon can be used.
- the plating seed layer 11 is a layer serving as an electrode in the electrolytic plating method, and is made of a conductive material.
- the material of the plating seed layer 11 for example, one or more selected from Fe, Co, Ni and the like can be used.
- a material containing the same components as the film components formed by plating is usually used for the plating seed layer 11.
- the resist film 12 ′ can be formed by applying a solution of the resist composition prepared as described above on the methoxide layer 11 using a spinner or the like, and then performing pre-beta (PAB treatment). It can.
- the prebaking conditions vary depending on the type of each component in the composition, the mixing ratio, the coating film thickness, etc., but are usually 70 to 150 ° C, preferably 80 to 140 ° C, and are preferably 0 to 140 ° C. About 5 to 60 minutes.
- the thickness of the formed resist film 12 ′ is determined according to the thickness (height) of the magnetic film pattern 13 to be obtained, but is preferably from 0.1 to 3.1 . ⁇ . 2 to 2. ⁇ is most preferable.
- the resist film 12 is selectively exposed through a desired mask pattern.
- a KrF excimer laser can be suitably used because the positive resist composition according to the present invention has an absorption capacity of 248 nm.
- PEB post-exposure baking
- development processing is performed using an alkaline developing solution composed of an alkaline aqueous solution. 4) is developed to obtain a resist pattern 12 having a tapered side wall as a trench pattern as shown in FIG. 4B.
- the distance between the resist patterns 12 in the cross section is not particularly limited, but, for example, the distance D 1 at the bottom surface position of the resist pattern 12 is preferably 250 nm or less, for example. Or about 100 to 200 nm.
- the inside of the concave portion surrounded by the resist pattern 12 having the tapered side walls is subjected to electrolytic plating to form a magnetic film 13 '.
- the magnetic material used for the magnetic film 13 ′ one containing elements such as Ni, Co, Cr, and Pt is used.
- Electroplating can be performed by a conventional method. For example, it is possible to use a method in which a current is applied to the plating seed layer 11 and the electrode is immersed in an electrolytic solution containing magnetic ions. .
- the resist pattern 12 is removed, as shown in FIG. 4D, so that the write portion 2 1 of the magnetic head on which the reverse tapered magnetic film pattern 13 is formed. Is manufactured.
- the method for removing the resist pattern 12 is not particularly limited as long as it does not adversely affect the magnetic film, for example, and a known method such as a stripping solution or oxygen plasma assing can be used.
- a fine resist pattern By using the resist composition according to the second embodiment, a fine resist pattern can be formed, the taper angle ⁇ 3 (FIG. 4A) of the resist pattern can be controlled to an appropriate angle, and the depth of focus can be controlled. A resist pattern having excellent resistance can be formed.
- a fine magnetic film pattern can be formed by forming the magnetic film by the plating method using the tapered resist pattern as a frame, and the angle ⁇ 3 ′ (FIG. 4D) of the side wall of the magnetic film pattern can be adjusted appropriately. And the angle of the magnetic film pattern and the angle thereof can be formed stably.
- the posi-type resist composition according to the present invention may be a magnetic random access memory (MRAM) or a MEM. It can be suitably used for manufacturing S (Micro Electro Mechanical Systems) and the like.
- MRAM magnetic random access memory
- MEM Micro Electro Mechanical Systems
- component (A), component (B), component (C), component (E), and other components were uniformly dissolved in component (D) to prepare a positive resist composition.
- component (A) anthracenemethanol shown in [Chemical Formula 1] was used.
- component (A) was mixed in four stages of 4.0, 4.5,: 5.0, 5.5 parts by mass with respect to 100 parts by mass of (B) component. Was used.
- Comparative Example 1 the component (A) was not blended.
- component (B) 100 parts by mass of a copolymer composed of the three types of structural units shown in [Dani 2] was used.
- the mass average molecular weight of the prepared component (B) was 12,000.
- component (C) 3.0 parts by mass of trisulfur sulfonium trifluoromethanesnorrephonate was used based on 100 parts by mass of the component (B).
- component (D) 900 parts by mass of propylene daricol monomethyl ether acetate was used based on 100 parts by mass of the component (B).
- component (E) 0.35 parts by mass of triethanolamine was used.
- component (F) 0.32 parts by mass of salicylic acid was used.
- the positive resist composition obtained above was applied on silicon wafer using a spinner, and prebaked on a hot plate at 110 ° C for 90 seconds, By drying, a 300 nm thick resist film was formed.
- the substrate was subjected to PEB treatment under the conditions of 100 ° C. for 90 seconds, and further developed with an alkaline developer for 60 seconds to obtain an isolated line-shaped resist pattern.
- an alkaline developer a 2.38% by mass aqueous solution of tetramethylammonium hydroxide was used.
- a resist film having a thickness of 0.3 ⁇ formed using the resist compositions according to Examples 1 and 2 and Comparative Example 1 was obtained at 248 nm.
- the transmittance was measured.
- the transmittance was measured using a device name: UV-2500 PC (manufactured by Shimadzu Corporation). The results are shown in [Table 1] below.
- the resist pattern formed using the resist compositions of Examples 1 to 4 to which the component (A) was added was as follows. As shown in [Table 2], the side wall of the isolated line pattern showed a good taper shape having an appropriate taper angle ( ⁇ 2 ). For these,
- Example 1 the resolution (resist pattern size) in each embodiment and the depth of focus at that time
- Example 2 a 250 nm isolated line pattern was formed in Example 1 and the focal depth was 0.6 ⁇ .
- Example 2 a 250 nm isolated line pattern was formed and the focal depth was In Example 3, a 250 nm isolated line pattern was formed and the depth of focus was 0.6 ⁇ in Example 3, and in Example 4, a 250 nm isolated line pattern was formed and the depth of focus was 0.5 ⁇ . Since Comparative Example 1 did not have a tapered shape, it was determined to be defective without measuring the resolution and the depth of focus.
- Example 1 the positive resist composition was changed to a non-chemically amplified naphthoquinone / novolak type positive resist or composition for i-line, the resist thickness was changed to 0.5 ⁇ , and the exposure apparatus was changed to NSR. Instead of an i10D (Nikon) i-line stepper, normal exposure and development were performed to form an isolated line pattern.
- the pattern was formed by changing the depth of focus by 0.5 ⁇ , the same as the resist film thickness, a moderate taper shape was obtained at the center and focus, but an excessively tapered shape was obtained at the focus of 0.5 ⁇ . Shaped isolated line pattern and inverted tape-shaped isolated line pattern are formed, resulting in insufficient depth of focus and good taper Reproduction of an isolated line pattern of one shape One life was insufficient.
- the positive resist composition according to the present invention to which the component (A) was added, had an absorption capacity at 248 nm.
- the sidewall showed a favorable shape having an appropriate taper angle.
- a fine isolated line pattern of 250 nm could be formed with a sufficient depth of focus.
- Example 1 the blending amount of the component (A) was 0.2, 0.5, 1.0, 1.5, 2.0 with respect to 100 parts by mass of the component (B).
- the positive resist compositions of Examples 5 to 12 were prepared in the same manner as in Example 1, except that 8 steps of 3.0, 4.0, and 4.5 parts by mass were used.
- the positive resist compositions of Examples 11 and 12 correspond to the same compositions as Examples 1 and 2, respectively.
- the positive resist composition obtained above was applied to silicon wafer using a spinner, pre-beta on a hot plate at 100 ° C. for 90 seconds, and dried to obtain A resist film having a thickness of 800 nm was formed. Then, it was selectively irradiated with a KrF excimer laser (248 nm) by the same KrF exposure apparatus EPA-3000EX3 as in Example 1.
- PEB treatment was performed at 110 ° C. for 90 seconds, and further development was performed for 60 seconds with a developer to obtain a trench pattern in which a slit-shaped concave portion surrounded by a resist pattern was formed.
- a developer As the alkaline developer, an aqueous solution of 2.38% by mass of tetramethylammonium hydroxide was used.
- the transmittance at 248 nm of a resist film having a thickness of 0.3 ⁇ formed using the resist compositions according to Examples 5 to 12 was measured.
- the transmittance was measured using the same UV-2500 PC (manufactured by Shimadzu Corporation) as in Example 1. The results are shown in [Table 3] below.
- the distance D1 between the resist patterns at the bottom position of the resist pattern was 200 nm. Is formed, and its depth of focus is 0.7 ⁇ .
- Example 6 D1 was 200 nm, and the depth of focus was 0.8 ⁇ .
- Example 7 D1 was 200 nm, and the depth of focus was 0.8 ⁇ .
- Example 8 D1 was 200 nm, and the depth of focus was 0.8 ⁇ .
- Example 9 D 1 was 200 nm, and the depth of focus was 0.9 ⁇ .
- Example 10 the D 1 force was S 200 nm, and the depth of focus was 0.9 ⁇ .
- Example 11 D 1 was 200 nm, and the depth of focus was 0.9 ⁇ .
- Example 12 the D1 force was S200 nm, and the depth of focus was 0.9 ⁇ .
- Example 5 the positive resist composition was changed to a non-chemically amplified naphthoquinone-nopolak type positive resist composition for i-line, and the resist B thickness was changed to 0.8 ⁇ m.
- the exposure system was changed to an NSR i10D (Nikon) i-line stepper, and normal exposure and development were performed to form a trench pattern.
- NSR i10D Nakon
- a trench pattern of D 1 35.0 nm was obtained and had an appropriate tapered shape, the depth of focus was 0.3 pm, and the depth of focus was insufficient compared with the example.
- the positive resist composition according to the present invention to which the component ( ⁇ ) was added, had an absorption capacity at 248 nm.
- the sidewall showed a favorable shape with an appropriate taper angle.
- a fine trench pattern of D 1 200 nm was formed with a sufficient depth of focus.
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- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0518228A GB2415515B (en) | 2003-03-14 | 2004-03-11 | Chemical amplification type positive resist composition |
US10/548,843 US7172848B2 (en) | 2003-03-14 | 2004-03-11 | Chemical amplification type positive resist composition |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2003-70877 | 2003-03-14 | ||
JP2003070877 | 2003-03-14 | ||
JP2003-432686 | 2003-12-26 | ||
JP2003432686A JP4393861B2 (ja) | 2003-03-14 | 2003-12-26 | 磁性膜のパターン形成方法 |
Publications (1)
Publication Number | Publication Date |
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WO2004081665A1 true WO2004081665A1 (ja) | 2004-09-23 |
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Family Applications (1)
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PCT/JP2004/003162 WO2004081665A1 (ja) | 2003-03-14 | 2004-03-11 | 化学増幅型ポジ型レジスト組成物 |
Country Status (5)
Country | Link |
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US (1) | US7172848B2 (ja) |
JP (1) | JP4393861B2 (ja) |
GB (1) | GB2415515B (ja) |
TW (1) | TWI255969B (ja) |
WO (1) | WO2004081665A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4322097B2 (ja) * | 2003-11-14 | 2009-08-26 | 東京応化工業株式会社 | El表示素子の隔壁、およびel表示素子 |
JP2006145853A (ja) * | 2004-11-19 | 2006-06-08 | Jsr Corp | 感放射線性樹脂組成物およびメッキ造形物の製造方法 |
JP4205078B2 (ja) * | 2005-05-26 | 2009-01-07 | 東京応化工業株式会社 | ポジ型レジスト組成物およびレジストパターン形成方法 |
JP4937594B2 (ja) * | 2006-02-02 | 2012-05-23 | 東京応化工業株式会社 | 厚膜レジスト膜形成用のポジ型レジスト組成物、厚膜レジスト積層体およびレジストパターン形成方法 |
US7587811B2 (en) | 2006-04-25 | 2009-09-15 | Hitachi Global Storage Technologies Netherlands B.V. | Method for manufacturing a magnetic write head for perpendicular magnetic data recording |
US7498116B2 (en) | 2007-03-30 | 2009-03-03 | Fujifilm Corporation | Resist composition and pattern formation method using the same |
JP4911469B2 (ja) | 2007-09-28 | 2012-04-04 | 富士フイルム株式会社 | レジスト組成物及びこれを用いたパターン形成方法 |
JP5658920B2 (ja) * | 2009-06-23 | 2015-01-28 | 富士フイルム株式会社 | 化学増幅型レジスト組成物、並びに、これを用いたモールドの作成方法、及び、レジスト膜 |
JP5348062B2 (ja) * | 2010-04-23 | 2013-11-20 | 信越化学工業株式会社 | 化学増幅ポジ型レジスト材料を用いたレジストパターン形成方法及びメッキパターン形成方法 |
US8333898B2 (en) | 2010-12-20 | 2012-12-18 | Hitachi Global Storage Technologies Netherlands B.V. | Method for manufacturing a magnetic tape head using a TMR sensor |
US8906594B2 (en) | 2012-06-15 | 2014-12-09 | Az Electronic Materials (Luxembourg) S.A.R.L. | Negative-working thick film photoresist |
US9012126B2 (en) * | 2012-06-15 | 2015-04-21 | Az Electronic Materials (Luxembourg) S.A.R.L. | Positive photosensitive material |
WO2017057226A1 (ja) * | 2015-09-30 | 2017-04-06 | 富士フイルム株式会社 | パターン形成方法、及び、感活性光線性又は感放射線性樹脂組成物 |
JP6655628B2 (ja) * | 2015-11-05 | 2020-02-26 | 富士フイルム株式会社 | 感活性光線性又は感放射線性樹脂組成物、パターン形成方法、及び、電子デバイスの製造方法 |
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- 2003-12-26 JP JP2003432686A patent/JP4393861B2/ja not_active Expired - Fee Related
-
2004
- 2004-03-11 GB GB0518228A patent/GB2415515B/en not_active Expired - Fee Related
- 2004-03-11 TW TW093106520A patent/TWI255969B/zh not_active IP Right Cessation
- 2004-03-11 US US10/548,843 patent/US7172848B2/en not_active Expired - Lifetime
- 2004-03-11 WO PCT/JP2004/003162 patent/WO2004081665A1/ja active Application Filing
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JPH05204157A (ja) * | 1992-01-29 | 1993-08-13 | Japan Synthetic Rubber Co Ltd | 感放射線性樹脂組成物 |
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Also Published As
Publication number | Publication date |
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GB2415515A (en) | 2005-12-28 |
US20060194140A1 (en) | 2006-08-31 |
JP4393861B2 (ja) | 2010-01-06 |
GB0518228D0 (en) | 2005-10-19 |
TWI255969B (en) | 2006-06-01 |
JP2004302434A (ja) | 2004-10-28 |
GB2415515B (en) | 2006-07-12 |
US7172848B2 (en) | 2007-02-06 |
TW200428149A (en) | 2004-12-16 |
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