WO2006019135A1 - パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 - Google Patents
パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 Download PDFInfo
- Publication number
- WO2006019135A1 WO2006019135A1 PCT/JP2005/015065 JP2005015065W WO2006019135A1 WO 2006019135 A1 WO2006019135 A1 WO 2006019135A1 JP 2005015065 W JP2005015065 W JP 2005015065W WO 2006019135 A1 WO2006019135 A1 WO 2006019135A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pattern
- coating
- forming agent
- compound
- polymer
- Prior art date
Links
Classifications
-
- 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
- G03F7/40—Treatment after imagewise removal, e.g. baking
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
Definitions
- the present invention relates to a coating forming agent for pattern miniaturization in the photolithography field and a method for forming a fine pattern using the same. More specifically, the present invention relates to a coating forming agent for pattern miniaturization capable of coping with the recent integration and miniaturization of semiconductor devices and a fine pattern forming method using the same.
- irradiation light such as electron beams
- photoresist materials with physical properties corresponding to these irradiation light are being conducted as mask pattern forming materials.
- Patent Document 1 a pattern is formed on a pattern forming resist applied on a substrate, and then the pattern forming resist and the mixin are formed.
- the mixing generation resist is applied to the entire surface of the substrate, and then beta-mixed to form a mixing layer on the resist forming sidewalls to the surface. Then, the non-mixing portion of the mixing generation resist is removed, and the mixing layer is formed.
- a method for forming a blank pattern in which dimensions are reduced is disclosed.
- Patent Document 2 a resin on which a resist pattern containing an acid generator is formed is coated with a resin that is insolubilized in the presence of an acid, and then heat-treated. After the acid is diffused from the resist into the resin to form a resist having a constant thickness near the interface between the resin and the resist pattern, development is performed to remove the resin part where the acid is not diffused.
- a pattern forming method in which the thickness is reduced by a thickness is disclosed.
- a method in which a resist pattern is fluidized by heat treatment or the like to reduce the pattern dimensions.
- a heat treatment is performed to deform the cross-sectional shape of the resist pattern, thereby forming a fine pattern.
- JP-A-4-364021 Patent Document 4
- after forming a resist pattern it is heated before and after its softening temperature, and the pattern dimension is changed by fluidizing the resist to form a fine pattern. The method is disclosed! Speak.
- the thermal dependence in the wafer surface is about several nmZ ° C, and although there are few problems in this respect, it is difficult to control the flow of resist deformation by heat treatment. There is a problem that it is difficult to provide a uniform resist pattern on the wafer surface.
- Patent Document 6- L1
- Patent Document 6 L1
- Patent Document 6 L1
- a photoresist layer is provided on a substrate, and this is exposed and developed to form a photoresist pattern.
- the coating forming agent for pattern miniaturization is coated over the entire surface of the substrate, heating is performed, and the photoresist pattern is widened by utilizing the heat shrinkage action of the coating forming agent for pattern miniaturization.
- the pattern interval is narrowed and the width of the pattern (various patterns such as a hole pattern and a trench pattern) defined by the photoresist pattern interval is also narrowed, a fine pattern can be obtained.
- pattern dimension control in two stages, that is, a photoresist pattern formation stage (first stage) and a heat shrinkage stage of the pattern miniaturization coating forming agent (second stage). to be influenced.
- first stage photoresist pattern formation stage
- second stage heat shrinkage stage of the pattern miniaturization coating forming agent
- heat shrinkage is performed while maintaining the ratio of the minor axis diameter to the major axis diameter of the ellipse while maintaining a high thermal shrinkage rate. It is necessary to obtain an elliptical hole pattern.
- the invention of the present application is intended to solve a significant problem.
- Patent Document 12 JP-A-2001-281886 discloses a resin containing a water-soluble resin. After coating the resist pattern surface with an acid film such as a dyst pattern reduction material, the resist pattern surface layer is converted to alkali-soluble, and then the surface layer and the acid film are removed with an alkaline solution. A method for reducing a resist pattern is disclosed, and
- Patent Document 13 a resist pattern on a substrate and a coating film containing a water-soluble film forming component are formed on the resist pattern, and after the resist pattern and the coating film are heat-treated,
- a method for forming a miniaturized resist pattern by immersing it in an aqueous tetramethylammonium hydroxide solution without passing through a dry etching process is disclosed, all of these are methods for miniaturizing the resist pattern itself. The purpose is completely different.
- Patent Document 1 Japanese Patent Application Laid-Open No. 5-166717
- Patent Document 2 Japanese Patent Laid-Open No. 5-241348
- Patent Document 3 Japanese Patent Application Laid-Open No. 1 307228
- Patent Document 4 Japanese Patent Laid-Open No. 4-364021
- Patent Document 5 Japanese Patent Laid-Open No. 7-45510
- Patent Document 6 Japanese Unexamined Patent Publication No. 2003-084459
- Patent Document 7 JP 2003-084460
- Patent Document 8 Japanese Patent Laid-Open No. 2003-107752
- Patent Document 9 Japanese Patent Application Laid-Open No. 2003-142381
- Patent Document 10 Japanese Unexamined Patent Publication No. 2003-195527
- Patent Document 11 Japanese Patent Laid-Open No. 2003-202679
- Patent Document 12 Japanese Patent Laid-Open No. 2001-281886
- Patent Document 13 Japanese Unexamined Patent Application Publication No. 2002-184673
- the present invention has been made in view of the above circumstances, and is intended to form a pattern that is contracted at a uniform heat shrinkage rate while maintaining a no-turn shape, and is particularly high in the formation of an elliptical hole pattern. While maintaining the heat shrinkage ratio, heat shrinkage can be performed while maintaining the ratio of the minor axis diameter to the major axis diameter of the ellipse, and a refined elliptical hole pattern can be obtained.
- An object of the present invention is to provide a coating forming agent for pattern miniaturization and a fine pattern forming method using the same.
- the present invention is applied to a substrate having a photoresist pattern, and after the photoresist pattern interval is narrowed using the thermal contraction action of the coating, the coating is substantially completely removed.
- a covering formation agent used for forming a fine pattern by removing (a) a water-soluble polymer and (b) a heterocyclic compound having at least two nitrogen atoms in at least one ring
- a coating forming agent for pattern miniaturization comprising the above monomer is provided.
- the present invention provides a photoresist having a photoresist pattern coated thereon with the above-described pattern-miniaturizing coating-forming agent, and then thermally shrinking the coating-forming agent by a heat treatment, and utilizing the heat-shrinking action.
- a method for forming a fine pattern comprising the steps of narrowing the interval between patterns and then substantially completely removing the coating forming agent for pattern miniaturization.
- a coating forming agent coating film
- the photoresist pattern interval is narrowed using the shrinkage force of the coating film, and then the coating film is removed.
- the coating forming agent for pattern miniaturization according to the present invention is coated on a substrate provided with a photoresist pattern (mask pattern), and the photoresist pattern is widened and widened by the thermal contraction action of the coating, whereby a photoresist is formed. After narrowing the width of patterns such as hole patterns and trench patterns defined by the pattern spacing, And completely removed to form a fine pattern.
- substantially completely removing the coating means that the photoresist pattern interval is narrowed by using the thermal shrinkage action of the pattern forming coating forming agent, and then the photoresist pattern. This means that the coating forming agent for pattern miniaturization is completely removed without leaving a significant thickness at the interface. Therefore, the present invention does not include a method in which the pattern refinement coating forming agent is allowed to remain in the vicinity of the photoresist pattern interface to a certain thickness and the pattern is refined by the remaining predetermined thickness.
- the powerful coating forming agent for pattern miniaturization of the present invention comprises (a) a water-soluble polymer and (b) a heterocyclic compound having at least two nitrogen atoms in the same ring. Containing.
- the water-soluble polymer as the component (a) is not particularly limited as long as it is a polymer that can be dissolved in water at room temperature.
- An alkylene glycol polymer, a urea polymer, a melamine polymer, an epoxy polymer, an amide polymer and the like are preferably used.
- acrylic polymer examples include acrylic acid, methyl acrylate, methacrylic acid, methyl methacrylate, N, N-dimethylacrylamide, N, N-dimethylaminopropyl methacrylate, N, N- Dimethylaminopropyl acrylamide, N-methyl acrylamide, diacetone acrylamide, N, N-dimethylaminoethyl metatalylate, N, N-jetyl aminoethyl metatalylate, N, N-dimethylaminoethyl attalylate, alitaroyl mole
- examples thereof include a polymer or copolymer having a monomer such as holin as a constituent component.
- bulle polymer examples include a polymer or a copolymer having monomers such as N-bulupyrrolidone, buriumidazolidinone, and vinyl acetate as constituent components.
- Cellulose derivatives include, for example, hydroxypropylmethylcellulose phthalate, hydroxypropylmethylcellulose acetate phthalate, hydroxypropylmethyl cenorelose hexahydrophthalate, hydroxypropinoremethinoresenorelose acetate succinate, hydroxypropinoremethinoresenorelose, hydroxy Examples thereof include propinoresenorelose, hydroxyethyl cellulose, cellulose acetate hexahydrophthalate, canoleoxymethyl cellulose, ethyl cellulose, and methyl cellulose.
- alkylene glycol polymer examples include ethylene glycol and propylene glycol.
- examples include addition polymers such as glycols or addition copolymers.
- Examples of the urea polymer include those having methylol urea, dimethylol urea, ethylene urea or the like as a constituent component.
- Examples of the melamine polymer include those containing methoxymethylated melamine, methoxymethylated isobutoxymethylated melamine, methoxyethylated melamine and the like as constituent components.
- water-soluble epoxy polymers and amide polymers can be used.
- the point of being easy The acrylic polymer is most preferable.
- a copolymer of an acrylic polymer and a water-soluble polymer other than an acrylic polymer increases the shrinkage efficiency of the photoresist pattern spacing while maintaining the shape of the photoresist pattern during heat treatment. If you can do it, you will like it.
- Component (a) can be used alone or in combination of two or more.
- the blending ratio of the constituent components is not particularly limited. However, if importance is placed on the stability over time, the blending ratio of the acrylic polymer is not limited. The amount is preferably larger than those of other constituent polymers.
- the improvement in stability over time can be solved by adding acidic compounds such as p-toluenesulfonic acid and dodecylbenzenesulfonic acid in addition to adding an excessive amount of the talyl polymer as described above. It is also possible.
- the present invention is characterized in that a monomer of a heterocyclic compound having at least two nitrogen atoms in the same ring is used as the component (b).
- pyrazole 3,5 dimethyl virazole, 2-pyrazoline, 5- virazolone, 3-methyl 1-phenol 1 5 pyrazolone, 2, 3 dimethyl 1-phenol 1 5 pyrazolone, 2, 3 dimethyl 1 4 dimethylamino 1 1-phenyl 1 5 pyrazole compounds such as pyrazolone, benzopyrazole; imidazole, methylimidazole, 2, 4, 5 triphenyl-noreimidazolene, 4 (2 aminoethinole) Imidazonole, 2 amino 3— (4 (Imidazolyl) imidazole compounds such as propionic acid; 2 imidazoline, 2, 4, 5 triphenyl 2-imidazoline, 2- (1-naphthylmethyl) -2-imidazoline and other imidazoline compounds; imidazolidine, 2— Imidazolidone, 2, 4-Imidazolidinedione, 1-Methyl-2, 4 Imidazolidinedione, 5-Met
- an imidazole compound monomer is preferably used, and imidazole is particularly preferably used because it is easy to handle and is easily available.
- the amount of component (b) is preferably about 1 to 15% by mass, more preferably about 2 to about LO% by mass, relative to component (a) of the present invention. If it is less than 1% by mass, it is difficult to obtain the desired effect in the present invention, while if it exceeds 15% by mass, it is difficult to obtain the desired effect in the present invention, and at the same time, the risk of occurrence of foreign matter (dift) increases.
- the coating forming agent for pattern miniaturization of the present invention has a solid content concentration of 3 to 50% by mass. It is preferable to use as an aqueous solution. It is particularly preferable to use as an aqueous solution having a concentration of 5 to 20% by mass. If the concentration is less than 3% by mass, there is a risk of poor coating on the substrate. On the other hand, if it exceeds 50% by mass, no improvement in the effect commensurate with the increase in concentration is observed, which is not preferable from the viewpoint of handling. .
- the coating forming agent for pattern miniaturization of the present invention can use water as a solvent and a mixed solvent of water and an alcohol solvent that is usually used as an aqueous solution.
- alcohol solvents include methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, glycerin, ethylene glycolanol, propylene glycolanol, 1,2 butylene glycolanol, 1,3 butylene glycolanol, and 2,3 butylene glycol. Etc. These alcohol solvents are used by mixing up to about 30% by mass with respect to water.
- the coating forming agent for pattern miniaturization of the present invention may further contain a water-soluble amine or surfactant as required.
- water-soluble amines include amines having a pKa (acid dissociation constant) of 7.5 to 13 in an aqueous solution at 25 ° C.
- amines having a pKa acid dissociation constant
- pKa acid dissociation constant
- Alkanolamines diethylenetriamine, triethylenetetramine, propylenediamine, N, N ethynoleethylenediamine, 1,4 butanediamine, Nethylethyleneethyleneamine, 1,2 propanediamine, 1, 3 Polyalkylene polyamines such as propane diamine and 1, 6 hexane diamine S; 2 Echiru to carboxymethyl Ruamin, Jiokuchiruamin, Toribuchiruamin, tripropylamine ⁇ Min, Toriariruamin, to Puchiruamin, aliphatic Kishiruamin such cyclohexylene Amin; Benjiruamin, Jifue - Rua aromatic Amin such as Min, and the like.
- a water-soluble amine When a water-soluble amine is blended, it is preferably blended at a ratio of about 0.1 to 30% by mass, particularly 2 to 15% by mass with respect to the coating forming agent (solid content) for pattern refinement. Degree. If the amount is less than 1% by mass, the liquid may deteriorate over time, while if it exceeds 30% by mass, the shape of the photoresist pattern may be deteriorated.
- the surfactant is not particularly limited, but it must have properties such as high solubility in the component (a) included in the present invention and no occurrence of suspension.
- a surfactant that satisfies these characteristics, it is possible to suppress the generation of bubbles (microfoam), particularly when coating materials are applied, and to prevent the occurrence of defatts that are related to the generation of microfoam. It is possible to prevent the occurrence.
- N alkyl pyrrolidone surfactants quaternary ammonium salt surfactants, and polyoxyethylene phosphate ester surfactants are also selected. At least one kind is selected. Preferably used.
- N-alkylpyrrolidone surfactant examples include the following general formula (I)
- R represents an alkyl group having 6 or more carbon atoms
- the one represented by is preferred.
- N alkylpyrrolidone-based surfactants include N-hexyl-2-pyrrolidone, N-heptileu-2-pyrrolidone, N-octyl-2-pyrrolidone, N-nonyl-2-pyrrolidone, N-decyl-2- —Pyrrolidone, N-decyl-1-2-pyrrolidone, N-undecyl-2-pyrrolidone, N-dodecyl-2-pyrrolidone, N-tridecyl-2-pyrrolidone, N-tetradecyl-2-pyrrolidone, N-pentadecyl-2-pyrrolidone, N-hexadecyl-2 —Pyrrolidone, N-heptadecyl-2-pyrrolidone, N-octadecyl-2-pyrrolidone and the like can be mentioned. Among them
- R, R, R and R each independently represents an alkyl group or a hydroxyalkyl group.
- At least one of them represents an alkyl group or a hydroxyalkyl group having 6 or more carbon atoms;
- X— represents a hydroxide ion or a halogen ion).
- quaternary ammonium salt surfactants include dodecyl trimethyl ammonium hydroxide, tridecyl trimethyl ammonium hydroxide, tetradecyl trimethyl ammonium hydroxide, pentadecyl trimethyl ammonium hydroxide, Xadecyltrimethylammonium hydroxide, heptadecyltrimethylammonium hydroxide, octadecyltrimethylammonium hydroxide, and the like. Of these, hexadecyltrimethylammonium hydroxide is preferably used.
- Polyoxyethylene phosphate ester surfactants include the following general formula ( m )
- R represents an alkyl group or alkylaryl group having 1 to 10 carbon atoms; R represents water;
- n 1-20
- polyoxyethylene phosphate ester surfactants that can be used include “PRISURF A212E” and “PRISURF A210G” (all of which are manufactured by Daiichi Kogyo Seiyaku Co., Ltd.). What is marketed can be used suitably.
- the blending amount is preferably about 0.1 to about L0% by mass with respect to the coating forming agent (solid content) for pattern miniaturization. It is about 2 to 2% by mass. Incorporation of surfactants improves coating properties, in-plane uniformity, prevents variation in pattern shrinkage, prevents microfoaming, prevents diffetating, etc. It can be done.
- a substrate having a photoresist pattern is coated with the above-described coating forming agent for pattern miniaturization, and then the coating forming agent for pattern miniaturization is thermally contracted by heat treatment.
- the substrate having a photoresist pattern can be produced by a conventional method used in the production of semiconductor devices, liquid crystal display elements, magnetic heads, microlenses, and the like, which are not particularly limited.
- a photoresist composition such as a chemical amplification type is applied onto a substrate such as a silicon wafer using a spinner and dried to form a photoresist layer, and then a UV light, deep-UV is produced by a reduction projection exposure apparatus or the like.
- An actinic ray such as excimer laser light is irradiated with a desired mask pattern or drawn with an electron beam and heated, and then heated with a developer, for example, 1 to: LO mass% tetramethylammonium
- a photoresist pattern can be formed on the substrate by developing with an alkaline aqueous solution such as an aqueous solution of urea hydroxide (TMAH).
- TMAH urea hydroxide
- the photoresist composition used as a material for the photoresist pattern is not particularly limited, and is an i-line or g-line photoresist composition, or an excimer laser such as KrF, ArF, or F.
- a widely used photoresist composition such as a photoresist composition for EB and EUV (electron beam) can be used.
- a photoresist composition that does not form a mixing layer in the vicinity of the interface between the photoresist pattern and the coating forming agent for pattern miniaturization of the present invention is preferable.
- the mixing layer is formed, as described in the above-mentioned section of the prior art, it is preferable that the diffetat is easily generated, and further, the thermal dependence in the substrate surface is more than 10 nm.
- an i-line or g-line photoresist composition for example, a positive photoresist composition containing a novolac resin and a naphthoquinonediazide-based photosensitizer
- the above-described problem may occur.
- compounds that generate an acid upon exposure such as a photoresist composition for excimer laser, a photoresist composition for electron beam
- a chemically amplified photoresist composition containing an acid generator is used, a mixing layer may be formed near the interface between the coating forming agent and the photoresist pattern due to the acid generated by the acid generator. Therefore, it is necessary to consider this point.
- the formation of the mixing layer depends on the diffusion length (diffusion distance) of the acid generated from the acid generator and the amount of added basic substance. Therefore, when using a photoresist composition for excimer laser, a photoresist composition for electron beam, etc., the above mixing layer does not occur.
- a pattern forming agent for pattern miniaturization is applied and coated over the entire surface of the substrate having the photoresist pattern as the mask pattern.
- the substrate may be pre-betated at a temperature of about 80 to 100 ° C. for about 30 to 90 seconds.
- the coating method can be carried out in accordance with a method usually performed in a conventional heat flow process. That is, for example, the aqueous solution of the above-mentioned pattern forming agent for pattern miniaturization is applied onto the substrate by a spinner or the like.
- the heating temperature is not particularly limited as long as it is a temperature that can cause thermal shrinkage of a coating film made of a coating forming agent for pattern miniaturization, and is a temperature sufficient to perform pattern miniaturization. However, it is preferable to heat the photoresist pattern at a temperature that does not cause heat flow. Without causing heat flow to the photoresist pattern, the temperature refers to the heating of the substrate on which only the photoresist pattern formed by the coating forming agent for pattern miniaturization has been formed. In this case, it means a temperature that does not cause a dimensional change in the photoresist pattern.
- the heat treatment at such a temperature makes it possible to more effectively form a fine pattern having a good profile, and particularly to the duty ratio in the wafer plane, that is, to the pattern interval in the wafer plane. This is extremely effective in that the dependency can be reduced.
- the preferred heat treatment is usually in the temperature range of about 80-160 ° C, but the temperature at which the photoresist does not cause thermal flow. In about 30 to 90 seconds.
- the thickness of the coating film that also serves as a coating forming agent for fine patterning of noturn is preferably about the same as or covering the height of the photoresist pattern.
- the coating film which also has a pattern forming agent force for pattern miniaturization remaining on the pattern is removed by washing with an aqueous solvent, preferably pure water, for 10 to 60 seconds.
- an aqueous solvent preferably pure water
- a removal treatment may be performed with an aqueous alkali solution (for example, tetramethylammonium hydroxide (TMAH), choline, etc.) if desired.
- TMAH tetramethylammonium hydroxide
- the coating refinement for pattern miniaturization according to the present invention can be easily removed by washing with water, and can completely remove the substrate and photoresist pattern force.
- a substrate having a miniaturized pattern defined between wide and wide photoresist patterns is obtained on the substrate.
- the fine pattern obtained by the present invention has a finer pattern size than the resolution limit of a photoresist material, has a good profile, and can sufficiently satisfy required required characteristics. It is equipped with.
- the above steps a. To c. May be repeated a plurality of times. In this way, by repeating the steps a. To c. A plurality of times, the photoresist pattern (mask pattern) can be gradually widened.
- the technical field to which the present invention is applied is not limited to the semiconductor field, and can be widely used for manufacturing liquid crystal display elements, magnetic heads, and microlenses.
- a coating forming agent for pattern miniaturization was prepared by dissolving 03 g in 40 g of water.
- TEZ-7a-70 EM manufactured by Tokyo Ohka Kogyo Co., Ltd.
- TEZ-7a-70 EM which is a positive photoresist
- beta-treated at 95 ° C. for 90 seconds and a film thickness of 0.25 m photoresist layers were formed.
- the photoresist layer was exposed to light using an exposure apparatus (“NSR-S306”; manufactured by Nikon Corporation), and subjected to a heat treatment at 85 ° C. for 90 seconds.
- a photoresist pattern was formed by development using an aqueous solution of TMAH (tetramethyl ammonium hydroxide).
- TMAH tetramethyl ammonium hydroxide
- the above-described coating forming agent for pattern miniaturization was applied onto the substrate having the hole pattern, and heat treatment was performed at 145 ° C for 60 seconds, so that the hole pattern was refined. Subsequently, the coating forming agent for pattern miniaturization was removed using pure water at 23 ° C.
- an elliptical hole pattern formed in the same manner as in Example 1 (major axis diameter 188 nm, short axis
- the coating forming agent for pattern miniaturization and the method for forming a fine pattern according to the present invention can form a pattern that is contracted at a uniform thermal shrinkage while maintaining the pattern shape.
- a heat-shrinkable state is maintained while maintaining a ratio of the minor axis diameter to the major axis diameter of the ellipse while maintaining a high thermal contraction rate, and a refined elliptical hole pattern can be obtained. It is useful for the formation of fine patterns that can cope with the recent integration and miniaturization of semiconductor devices.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-240399 | 2004-08-20 | ||
JP2004240399A JP4535374B2 (ja) | 2004-08-20 | 2004-08-20 | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006019135A1 true WO2006019135A1 (ja) | 2006-02-23 |
Family
ID=35907518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/015065 WO2006019135A1 (ja) | 2004-08-20 | 2005-08-18 | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4535374B2 (ja) |
TW (1) | TWI263263B (ja) |
WO (1) | WO2006019135A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008136499A1 (ja) * | 2007-05-01 | 2008-11-13 | Az Electronic Materials (Japan)K.K. | 微細化パターン形成用水溶性樹脂組成物およびこれを用いた微細パターン形成方法 |
WO2009008265A1 (ja) * | 2007-07-11 | 2009-01-15 | Az Electronic Materials (Japan) K.K. | 微細パターン形成用組成物およびそれを用いた微細パターン形成方法 |
US7745077B2 (en) | 2008-06-18 | 2010-06-29 | Az Electronic Materials Usa Corp. | Composition for coating over a photoresist pattern |
US7923200B2 (en) | 2007-04-09 | 2011-04-12 | Az Electronic Materials Usa Corp. | Composition for coating over a photoresist pattern comprising a lactam |
US8101333B2 (en) | 2006-10-19 | 2012-01-24 | Az Electronic Materials Usa Corp. | Method for formation of miniaturized pattern and resist substrate treatment solution for use in the method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007073684A (ja) * | 2005-09-06 | 2007-03-22 | Toshiba Corp | パターン形成方法 |
JP2007311508A (ja) * | 2006-05-17 | 2007-11-29 | Nikon Corp | 微細パターン形成方法及びデバイス製造方法 |
KR101036753B1 (ko) | 2008-11-07 | 2011-05-24 | 주식회사 동부하이텍 | 화학증폭형 포토레지스트용 첨가제 및 이를 포함하는 화학증폭형 포토레지스트 조성물 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003195527A (ja) * | 2001-12-27 | 2003-07-09 | Tokyo Ohka Kogyo Co Ltd | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 |
JP2004037570A (ja) * | 2002-06-28 | 2004-02-05 | Tokyo Ohka Kogyo Co Ltd | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 |
JP2004126080A (ja) * | 2002-09-30 | 2004-04-22 | Fujitsu Ltd | レジストパターン厚肉化材料、レジストパターンの形成方法、及び半導体装置の製造方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3825294B2 (ja) * | 2001-09-28 | 2006-09-27 | 東京応化工業株式会社 | レジストパターンの微細化方法及びその方法に用いるレジストパターン微細化用被覆形成液 |
-
2004
- 2004-08-20 JP JP2004240399A patent/JP4535374B2/ja not_active Expired - Fee Related
-
2005
- 2005-08-18 WO PCT/JP2005/015065 patent/WO2006019135A1/ja active Application Filing
- 2005-08-19 TW TW94128435A patent/TWI263263B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003195527A (ja) * | 2001-12-27 | 2003-07-09 | Tokyo Ohka Kogyo Co Ltd | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 |
JP2004037570A (ja) * | 2002-06-28 | 2004-02-05 | Tokyo Ohka Kogyo Co Ltd | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 |
JP2004126080A (ja) * | 2002-09-30 | 2004-04-22 | Fujitsu Ltd | レジストパターン厚肉化材料、レジストパターンの形成方法、及び半導体装置の製造方法 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8101333B2 (en) | 2006-10-19 | 2012-01-24 | Az Electronic Materials Usa Corp. | Method for formation of miniaturized pattern and resist substrate treatment solution for use in the method |
US7923200B2 (en) | 2007-04-09 | 2011-04-12 | Az Electronic Materials Usa Corp. | Composition for coating over a photoresist pattern comprising a lactam |
WO2008136499A1 (ja) * | 2007-05-01 | 2008-11-13 | Az Electronic Materials (Japan)K.K. | 微細化パターン形成用水溶性樹脂組成物およびこれを用いた微細パターン形成方法 |
JP2008275995A (ja) * | 2007-05-01 | 2008-11-13 | Az Electronic Materials Kk | 微細化パターン形成用水溶性樹脂組成物およびこれを用いた微細パターン形成方法 |
WO2009008265A1 (ja) * | 2007-07-11 | 2009-01-15 | Az Electronic Materials (Japan) K.K. | 微細パターン形成用組成物およびそれを用いた微細パターン形成方法 |
US7745077B2 (en) | 2008-06-18 | 2010-06-29 | Az Electronic Materials Usa Corp. | Composition for coating over a photoresist pattern |
Also Published As
Publication number | Publication date |
---|---|
JP4535374B2 (ja) | 2010-09-01 |
TW200614345A (en) | 2006-05-01 |
TWI263263B (en) | 2006-10-01 |
JP2006058600A (ja) | 2006-03-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100639079B1 (ko) | 패턴 미세화용 피복 형성제 및 이를 사용한 미세 패턴의형성방법 | |
KR100634780B1 (ko) | 미세 패턴의 형성 방법 | |
WO2006019135A1 (ja) | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 | |
JP3485183B1 (ja) | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 | |
JP3476082B2 (ja) | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 | |
JP4869811B2 (ja) | 微細パターンの形成方法 | |
JP5270840B2 (ja) | パターン微細化用被覆形成剤及びそれを用いた微細パターンの形成方法 | |
JP3698688B2 (ja) | 微細パターンの形成方法 | |
JP3675789B2 (ja) | 微細パターンの形成方法 | |
JP2004078033A (ja) | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 | |
JP3675434B2 (ja) | 微細パターンの形成方法 | |
JP4428642B2 (ja) | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 | |
JP4762829B2 (ja) | パターン微細化用被覆形成剤およびそれを用いた微細パターンの形成方法 | |
TW200425264A (en) | Method of forming fine patterns | |
JP2008241753A (ja) | レジストパターン微細化用被覆形成剤及びそれを用いた微細レジストパターン形成方法 | |
JP4828457B2 (ja) | レジストパターン微細化用被覆形成剤及びそれを用いた微細レジストパターン形成方法 | |
JP3676752B2 (ja) | 微細パターンの形成方法 | |
JP5270839B2 (ja) | パターン微細化用被覆形成剤及びそれを用いた微細パターンの形成方法 | |
JP2008241754A (ja) | レジストパターン微細化用被覆形成剤及びそれを用いた微細レジストパターン形成方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |