The present invention addresses the problem of providing: a cured resin that has a high biomass ratio and is formed even without contact with oxygen; and a curable resin composition that has a high biomass ratio and can be cured even without contact with oxygen. The means for solving the aforementioned problem is a resin comprising: a base reaction product of a polymer of an unsaturated fatty acid; an epoxy resin; and a linking portion that links the base reaction product and the epoxy resin.
C08G 59/40 - Macromolécules obtenues par polymérisation à partir de composés contenant plusieurs groupes époxyde par molécule en utilisant des agents de durcissement ou des catalyseurs qui réagissent avec les groupes époxyde caractérisées par les agents de durcissement utilisés
The present invention addresses the problem of providing an aqueous resin comprising vegetable oil as a raw material, wherein the aqueous resin can be dispersed or dissolved in a hydrophilic solvent to form a liquid resin composition, can be cured in a short time from the state of the liquid resin composition, and can form a coating film and a molded product having sufficient strength, and to provide a method for producing the aqueous resin. The problem is solved by an aqueous resin which contains a polymer of an unsaturated fatty acid having a carboxyl group and a basic salt of a carboxyl group, and can be dispersed or dissolved in a hydrophilic solvent to form a liquid resin composition.
C08F 36/00 - Homopolymères ou copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, l'un au moins contenant plusieurs liaisons doubles carbone-carbone
C09D 5/00 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, caractérisées par leur nature physique ou par les effets produitsApprêts en pâte
C09D 167/00 - Compositions de revêtement à base de polyesters obtenus par des réactions créant une liaison ester carboxylique dans la chaîne principaleCompositions de revêtement à base de dérivés de tels polymères
C09D 191/00 - Compositions de revêtement à base d'huiles, de graisses ou de ciresCompositions de revêtement à base de leurs dérivés
C09F 7/02 - Modification chimique des huiles siccatives par oxydation
The present invention addresses the problem of providing a novel polyelectrolyte, a bioplastic which can be molded into a tough three-dimensional object, and a molded body using same. The solution to the problem is a polyelectrolyte comprising a partial polymer of a fatty acid having at least 16 carbon atoms, at least 2 double bonds, and carboxyl groups, the carboxyl groups being partially neutralized with a basic substance and converted to carboxylate anion groups.
C08F 36/00 - Homopolymères ou copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, l'un au moins contenant plusieurs liaisons doubles carbone-carbone
C08F 36/20 - Homopolymères ou copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone non conjuguées
C08F 36/22 - Homopolymères ou copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical contenant au moins trois doubles liaisons carbone-carbone
C08L 47/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, l'un au moins contenant plusieurs liaisons doubles carbone-carboneCompositions contenant des dérivés de tels polymères
4.
FOAMED RUBBER MOULDED BODY, PRODUCTION METHOD FOR SAME, AND SEAL MATERIAL USING SAME
The present invention relates to a foamed rubber moulded body comprising a rubber component, biomass nanofibres, and a filler, wherein: the blend amount of the filler is 85–300 parts by mass with respect to 100 parts by mass of the rubber component; and the biomass nanofibres have an average fibre length of 700nm or higher, and are oriented in a prescribed direction. The present invention also relates to a foamed rubber moulded body production method for obtaining a foamed rubber moulded body by cross-linking and foaming a rubber composition including: a biomass-nanofibre masterbatch obtained by mixing and solidifying a dispersion liquid of biomass nanofibres having a viscosity of 5500–70000mPa·s, and latex including at least one type of rubber component selected from the group consisting of natural rubbers and synthetic rubbers; a filler; a vulcanising agent; and a foaming agent. The present invention thereby provides an inexpensive, highly rubber-elastic foamed rubber moulded body, and a seal material using said moulded body.
C08J 9/04 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement utilisant des gaz de gonflage produits par un agent de gonflage introduit au préalable
The purpose of the present invention is to provide a layered product of a rubber layer and a polymer layer, such as PTFE, in which adhesion between the polymer layer and the rubber is further improved. The present invention is a layered product in which a fluorine-containing polymer compound layer and a rubber layer formed from a rubber composition are layered, and is characterized in that: the fluorine-containing polymer compound is a copolymer comprising difluoromethylene units and at least one type of unit selected from among hexafluoropropylene units, perfluoroalkyl vinyl ether units, methylene units, ethylene units and perfluorodioxole units, or is polytetrafluoroethylene; and the rubber layer contains SiO2.
B32B 25/08 - Produits stratifiés composés essentiellement de caoutchouc naturel ou synthétique comprenant du caoutchouc comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine synthétique
B29C 65/02 - Assemblage d'éléments préformésAppareils à cet effet par chauffage, avec ou sans pressage
B32B 25/02 - Produits stratifiés composés essentiellement de caoutchouc naturel ou synthétique avec des fibres ou particules enrobées dans le caoutchouc ou liées au caoutchouc
B32B 27/30 - Produits stratifiés composés essentiellement de résine synthétique comprenant une résine vinyliqueProduits stratifiés composés essentiellement de résine synthétique comprenant une résine acrylique
The present invention addresses the problem of providing a rubber crosslinked foamed molded article which is a highly-foamed rubber sponge molded article having a low specific gravity, and nevertheless, has less dimensional shrinkage after molding, and superior mechanical strengths such as shape stability, wear resistance, tensile strength, and the like, and to which various colors other than black can be easily applied. The rubber crosslinked foamed molded article comprises a crosslinked foamed sponge obtained by performing hot-press molding while simultaneously causing a crosslinking reaction and a foaming reaction. The crosslinked foamed sponge is formed as an elastic body by previously including a crosslinking agent in raw rubber, and is caused to have a specific gravity of less than 0.7 by previously including a foaming agent in the raw rubber. In addition, by previously including 1.0-20.0 mass% of cellulose nanofibers in the raw rubber, cellulose nanofibers are more densely dispersed in the inner wall of each cell in the foamed sponge while cellulose nanofibers are dispersed in thick portions between each cell.
C08J 9/04 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement utilisant des gaz de gonflage produits par un agent de gonflage introduit au préalable
7.
MOLTEN SALT BATH FOR DISSOLVING WC-CO SUPER-HARD ALLOY, AND METHOD FOR SEPARATING AND RECOVERING TUNGSTEN AND COBALT
Provided is a molten salt bath which is used to dissolve a WC-Co super-hard alloy and which is obtained by homogeneously melting a molten alkali nitrate in a molten alkali chloride, wherein at least two compounds selected from among the group consisting of MCl (M = Li, Na or K) are selected as the alkali chloride and at least one compound selected from among the group consisting of NNO3 (N = Li, Na or K) is selected as the alkali nitrate. The at least two alkali chloride compounds selected from among the group consisting of MCl (M = Li, Na or K) are contained at a concentration of 1 mol.% or higher, and preferably 1-20 mol.%, and the alkali nitrate is contained at a concentration of 99-80 mol.%. This molten salt bath dissolves a WC-Co super-hard alloy at a low temperature, reduces corrosion damage to a reactor plant vessel used to dissolve a WC-Co super-hard alloy, and enables industrial scale recovery of tungsten and cobalt.
An etching method for anisotropically etching a Cu film on a substrate surface includes providing a substrate having a Cu film on a surface thereof in a chamber and supplying an organic compound into the chamber while setting the inside of the chamber to a vacuum state and irradiating an oxygen gas cluster ion beam to the Cu film. The etching method further includes oxidizing Cu or the Cu film to a copper oxide by oxygen gas cluster ions in the oxygen gas cluster ion beam and anisotropically etching the Cu film by reacting the copper oxide and the organic compound.
C23C 14/00 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement
C23C 14/32 - Évaporation sous vide par explosionÉvaporation sous vide par évaporation suivie d'une ionisation des vapeurs
H01L 21/3213 - Gravure physique ou chimique des couches, p. ex. pour produire une couche avec une configuration donnée à partir d'une couche étendue déposée au préalable
C23F 4/02 - Procédés pour enlever des matériaux métalliques des surfaces, non couverts par le groupe ou par évaporation
H01L 21/3065 - Gravure par plasmaGravure au moyen d'ions réactifs
9.
NETWORK-TYPE COMPUTER SOFTWARE SYSTEM DESIGN SUPPORT METHOD
Provided is a design support device wherein the design step pertaining to performance issues which is one of the serious causes for malfunction is ameliorated and development costs associated with improving the quality of embedded software and reducing the number of back track steps are reduced. A design support method for an entire system in which a plurality of computers installed with an application processing program is connected by means of an information transmission means. At least the priory, activation cycle, execution time and execution frequency are defined for each task constituting the program installed on each computer. The execution time for the execution flow of the tasks is calculated by using a step for defining the execution flow of the tasks for each program, a step for defining the transmission time of the information transmission means, and the priority, activation cycle, execution time and execution frequency defined for each task. The combination of the programs executing a process in conjunction with one another and over the plurality of computers is defined. The performance of the entire system is predicted from the minimum execution time, maximum execution time and execution time distribution of the defined combination of programs.
Provided are a computer software design support method and a design support device, wherein the design step pertaining to performance issues which is one of the serious causes for malfunction is ameliorated and development costs associated with improving the quality of embedded software and reducing the number of back track steps are reduced. At least the priory, activation cycle, execution time and execution frequency are defined for each task constituting an application processing program. Moreover, the execution flow of tasks constituting the application processing program is defined. The execution time for the execution flow of the tasks is calculated by using the priority, activation cycle, execution time and execution frequency defined for each task. The system performance is predicted from the minimum execution time, maximum execution time and execution time distribution of the application processing program.
The purpose of the present invention is to provide a composition for photoaligned films or optical anisotropic films, which contains a photoaligned compound for which a material can be chosen at a very high degree of freedom. Provided is a composition for photoaligned films or a composition for optical anisotropic films, which contains a photoreactive polymer having a repeating unit represented by general formula (I) [wherein M represents a monomer unit capable of forming the main chain of a homopolymer or a copolymer; SPCR represents a spacer unit; the ring A represents an unsubstituted or substituted alicyclic hydrocarbon or an unsubstituted or substituted aromatic ring; the ring B represents an unsubstituted or substituted aromatic ring; and Z represents an alkyl group, an alkoxy group, a cyano group, a nitro group, a halogen atom, -CH=CHZ1, -C≡CZ1 (wherein Z1 represents an alkyl group, an alkoxy group, an alkoxycarbonyl group, an alkoxysulfonyl group, a cyano group, a nitro group or a halogen atom), -COOZ2 or -SO3Z2 (wherein Z2 represents an alkyl group)].
G02F 1/1337 - Orientation des molécules des cristaux liquides induite par les caractéristiques de surface, p. ex. par des couches d'alignement
C08F 20/18 - Esters des alcools ou des phénols monohydriques des phénols ou des alcools contenant plusieurs atomes de carbone avec l'acide acrylique ou l'acide méthacrylique
Provided are a copolymerizable (meth) acrylic acid polymer having excellent properties such as being soluble in a solvent having low toxicity and a low environmental impact, a composition for optical alignment films including the polymer, an optical alignment film that imparts a liquid crystal orientation function to the film comprising the composition, and a phase difference film obtained by orienting a liquid crystalline compound upon the optical alignment film. The copolymerizable (meth) acrylic acid polymer has repeating units represented by general formula (I) (The symbols are as stipulated in the description)
Disclosed are: a Cu-In-Ga-Se powder which contains Cu, In, Ga and Se and is free from occurrence of cracks during sintering or processing; and a sintered body and a sputtering target, each of which uses the Cu-In-Ga-Se powder. Specifically disclosed is a powder containing Cu, In, Ga and Se, which is characterized by containing a Cu-In-Ga-Se compound and/or a Cu-In-Se compound in an amount of 60% by mass or more in total. It is preferable that the powder contains 20% by mass or less of an In-Se compound and/or 20% by mass or less of a Cu-In compound.
B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
Disclosed is: an electret wherein vanishing of electric charges can be alleviated more than with conventional ones, even though the electret is easy to manufacture with a more simple construction; and a method of charging the electret, wherein the electret can be easily charged. An electrostatic-induction type conversion element (100) is provided with: an electret (10) comprising a substrate (11) that is comprised of an insulation material, a plurality of grid connection electrodes (12), a plurality of base electrodes (13), and an insulation material layer (14); a movable section (20) that is arranged facing the electret (10); and a resistor (30) connected to the electret (10) and the movable section (20). All the base electrodes (13) of the electret (10), the ground, and a needle electrode (41) are connected together, and further, a grid (40) and the grid connection electrodes (12) of the electret (10) are also connected together. Then, a prescribed voltage is applied between the needle electrode (41) and the base electrodes (13), charging the insulation material layer (14).
A curable resin composition, which contains, with respect to 100 parts of an epoxy resin, 1 to 70 parts of an epoxy resin curing agent and 1 to 50 parts of an acrylic block copolymer, and the acrylic block copolymer contains (α) at least one polymer block A composed of a structural unit derived from an alkyl methacrylate and at least one polymer block B composed of a structural unit derived from an alkyl acrylate, has a weight average molecular weight (Mw) of 30,000 to 300,000 and a molecular weight distribution (Mw/Mn) of 1.5 or less, and contains 3 to 60 percent by mass of the polymer block A. In addition, a cured resin is formed from the above curable resin composition.
C08L 53/00 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères
16.
INFORMATION SYSTEM, SERVER DEVICE, TERMINAL DEVICE, INFORMATION-PROCESSING METHOD, AND PROGRAM
To solve the problem that identifying imaged objects requires a large amount of time, a terminal device is disclosed that is provided with: a camera unit that stores at least one object information item and acquires imagery, said object information item comprising an object identifier and region information for an object; a terminal information acquisition unit that acquires terminal information comprising position information and direction information; an imaged object decision unit that applies the terminal information and a view angle to the region information in each object information item, examines each imaged object in ascending order of distance from the device, marks information for regions that become invisible due to object imaging as invisible regions, and stops examining when there are no more visible regions; an imaged object information acquisition unit that acquires at least one decided imaged object information item; and an output unit that outputs the imagery and at least one imaged object information item. This makes it possible to identify objects imaged by a camera and output information pertaining to said objects.
An electromagnetic wave heating device (100) is provided with a container (1) for storing a fluid (A), a waveguide case (2) positioned in the fluid (A), a waveguide path (5) extending to the outside of the container (1), and an electromagnetic wave generation source (4) connected to the waveguide path (5) and capable of generating electromagnetic waves.
National Institute of Advanced Industrial Science and Technology (Japon)
Hyogo Prefecture (Japon)
Inventeur(s)
Murata Togo
Murata Tetsuo
Endo Takashi
Nagatani Asahiro
Abrégé
Disclosed is a powder cosmetic material for which the powder component does not cause agglomeration even when a large amount of oily component is combined and for which the surface powder component does not cause caking when pressed. Said powder cosmetic material is characterized in containing flat cellulose particles and an oily component.
A61K 8/36 - Acides carboxyliquesLeurs sels ou anhydrides
A61K 8/44 - Acides aminocarboxyliques ou leurs dérivés, p. ex. acides aminocarboxyliques contenant du soufreLeurs sels, esters ou dérivés N-acylés
A61K 8/893 - Polysiloxanes saturés, p. ex. diméthicone, phényl triméthicone, C24-C28 méthicone, stéaryl diméthicone modifiés par un groupe alkoxyle ou aryloxyle, p. ex. béhénoxy diméthicone, stéaroxy diméthicone
A61K 8/92 - Huiles, graisses ou ciresLeurs dérivés, p. ex. produits d'hydrogénation
A61Q 1/10 - Préparations contenant des colorants cutanés, p. ex. pigments pour les yeux, p. ex. eye-liner, mascara
A61Q 1/12 - Poudres pour le visage ou le corps, p. ex. pour l'entretien, l'embellissement ou l'absorption
19.
FIBRE PRODUCTION DEVICE AND FIBRE PRODUCTION METHOD
A fibre production device is provided with: a storage tank (1) which stores a molten starting material (10); an electric heater (2) which heats the storage tank (1); a non-contact thermometer (9) which measures the temperature of the molten material (10); a temperature control unit (8) which is provided between the electric heater (2) and a power source (6) for the electric heater, and controls the electric heater (2) on the basis of the results of measurement by the non-contact thermometer (9) and adjusts the temperature of the molten material (10); a nozzle (3) which ejects the molten material (10) inside the storage tank (1); a collector (4) which collects fibres (11); a voltage generator (5) which electrically charges the molten material (10); and an insulating transformer (7) placed between the temperature control unit (8) and the electric heater (2). The insulating transformer (7) is placed between the electric heater (2) and the power source (6) for the electric heater and temperature control unit (8), creating a closed circuit, and therefore high voltage does not flow to the power source (6) for the electric heater or the temperature control unit (8). Because of this, the device is not prone to damage, and it is simple to achieve stable fibre production.
D01D 5/08 - Méthodes de filage à partir de masses en fusion
D04H 1/728 - Non-tissés formés uniquement ou principalement de fibres coupées ou autres fibres similaires relativement courtes caractérisés par la méthode de formation des voiles ou couches, p. ex. par la réorientation des fibres les fibres étant disposées au hasard par électrofilage
Disclosed is a curable epoxy resin composition which has excellent toughness and is thus hardly fractured, and exhibits good adhesion to other materials, while maintaining excellent heat resistance and elastic modulus intrinsic to epoxy resins. In addition, the curable epoxy resin composition has excellent weather resistance, solvent resistance and the like. The curable epoxy resin composition contains 1-70 parts of an epoxy resin curing agent and 1-50 parts of an acrylic block copolymer per 100 parts of an epoxy resin. The acrylic block copolymer contains one or more polymer blocks A composed of a structural unit derived from an alkyl methacrylate ester and one or more polymer blocks B composed of a structural unit derived from an alkyl acrylate ester, while having a weight average molecular weight (Mw) of 30,000-300,000, a molecular weight distribution (Mw/Mn) of not more than 1.5, and a content ratio of the polymer blocks A of 3-60% by mass. A cured resin composed of the curable epoxy resin composition is also disclosed.
A sol spinning solution for silica fiber production is produced by converting a liquid mixture of alkoxysilane polycondensate, water, catalyst and organic solvent to a viscous sol, or by polycondensation of a liquid mixture of alkoxysilane, water, catalyst and organic solvent conducted either at a reaction temperature of 20°C or above at a relative humidity of 60% or above as calculated in terms of a relative humidity at 20°C, or at a reaction temperature of below 20°C in an atmosphere of at least 60% or above of the relative humidity at the reaction temperature. Thus, the production time can be shortened, and the time allowed for spinning can be prolonged. Further, by spinning the resultant sol spinning solution in accordance with an electrostatic atomization method, a silica fiber can be produced easily within a short period of time. The produced silica fiber excels in mechanical strength.
D01F 9/08 - Filaments, ou similaires, faits par l’homme, formés d’autres substancesLeur fabricationAppareils spécialement adaptés à la fabrication de filaments de carbone de matière inorganique
C01B 33/12 - SiliceSes hydrates, p. ex. acide silicique lépidoïque
C03B 20/00 - Procédés spécialement adaptés à la fabrication d'articles en quartz ou en silice fondue
D01D 5/08 - Méthodes de filage à partir de masses en fusion
D04H 1/42 - Non-tissés formés uniquement ou principalement de fibres coupées ou autres fibres similaires relativement courtes à partir de voiles ou couches composés de fibres ne possédant pas des propriétés cohésives réelles ou potentielles caractérisés par l'emploi de certaines sortes de fibres dans la mesure où cet emploi n'a pas d'influence prépondérante sur la consolidation du voile
22.
BIS(2-ALKOXYETHYL) AZODICARBOXYLATE ESTER COMPOUND AND INTERMEDIATE FOR PRODUCTION OF THE SAME
Disclosed are: a bis(2-alkoxyethyl) azodicarboxylate ester compound which can be used in combination with a phosphorus compound in a Mitsunobu reaction for achieving a dehydration/condensation reaction, is useful as an oxidizing agent or a raw material for the synthesis of various compounds, and is safe and useful in an industrial viewpoint; an intermediate for the production of the compound; and a method for producing the compound or the intermediate. Specifically disclosed is a bis(2-alkoxyethyl) azodicarboxylate ester compound represented by the general formula (1). (1) wherein A represents an alkyl group having 1 to 10 carbon atoms.
C07C 281/20 - Dérivés d'acide carbonique contenant des groupes fonctionnels couverts par les groupes , dans lesquels au moins un atome d'azote de ces groupes fonctionnels est lié de plus à un autre atome d'azote ne faisant pas partie d'un groupe nitro ou nitroso les deux atomes d'azote des groupes fonctionnels étant liés entre eux par une liaison double, p. ex. azoformamide
C07C 281/02 - Composés contenant l'un des groupes p. ex. carbazates
23.
METHOD FOR PREVENTING CONTAMINATION OF REFLECTION MIRROR FOR EXTREME ULTRAVIOLET LIGHT SOURCE, AND EXPOSURE APPARATUS
The inside of a vacuum chamber (11), on which a multilayer film reflection mirror (12) is disposed, is evacuated, and an organic material gas such as ethanol gas is introduced into the vacuum chamber (11) during application of EUV light onto the multilayer film reflection mirror (12). The partial pressure of the organic material gas is brought to 1 to 200% of the pressure in the vacuum chamber (11) before the introduction of the organic material gas. Alternatively, a method may be adopted in which the amount of the organic material and water (water vapor) within the vacuum chamber (11) is measured with a measured with a mass analyzer (16) to regulate the amount of the organic material gas so that the amount of the organic material is brought to 0.1% to 3% of the amount of water vapor. By virtue of the above constitution, it is possible to prevent the oxidation of the surface of the multilayer film reflection mirror (12) caused by the residual water vapor in the vacuum chamber (11) and to prevent the deposition of carbon onto the surface of the multilayer film reflection mirror (12), whereby a lowering in reflectance of the multilayer film reflection mirror (12) can be prevented. Likewise, contaminants of organic materials and oxides already deposited on the multilayer film reflection mirror (12) can also be removed.
H01L 21/027 - Fabrication de masques sur des corps semi-conducteurs pour traitement photolithographique ultérieur, non prévue dans le groupe ou
G01N 21/33 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière ultraviolette
G21K 1/00 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer
G21K 1/06 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p. ex. pour focaliser ou pour modérer utilisant la diffraction, la réfraction ou la réflexion, p. ex. monochromateurs
24.
PROCESS FOR PRODUCING POLYCRYSTALLINE SEMICONDUCTOR THIN-FILM
A process in which a polycrystalline semiconductor thin-film of high quality can be prepared by irradiation with laser beams of low energy density. There is provided a process for producing a polycrystalline semiconductor thin-film, characterized by forming an amorphous semiconductor layer of high hydrogen atom concentration (hydrogen atom concentration: 10 to 20%) on an insulating substrate and superimposing thereon an amorphous semiconductor layer of lower hydrogen atom concentration (hydrogen atom concentration: 5% or less) so that by irradiation with excimer laser beams of energy lower than in the prior art, the amorphous semiconductor layers are stably converted to polycrystalline semiconductor layers.
brevets
