Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

52 results about "Film density" patented technology

The density of film refers to the amount of light a negative transmits. The denser or more blocked from light the sections of a negative are, the darker they will be in print. This is called negative film density.

Cavitated PHA-rich films and a method for making the same

A biaxially oriented cavitated PHA-rich composite film comprises a PHA-rich core layer and a first outer skin layer and a second outer skin layer. The core layer comprises a PHA resin at an amount of more than 50 wt % of a total weight of the polymeric resin in the core layer and a modifier X, the modifier X includes PLA resins and PLA copolymers and at least one mineral inorganic cavitating agent; the first outer skin layer comprises a PLA resin at an amount less than 50 wt % of the total weight of the outer layer and biopolymers comprising PHA resins or PBSA resins or PCL resins or mixture thereof. The PHA-rich composite film shows a reduced film density and higher yield as well as low light transmission rate.
Owner:TORAY PLASTICS (AMERICA) INC

Method for judging stable state of airflow shearing flat plate liquid membrane

The invention discloses a method for judging the stable state of an airflow shearing flat plate liquid membrane, and belongs to the technical field of gas-liquid-solid multiphase flow and aerodynamic heat. According to the non-dimensional relational expression, non-dimensional parameters are directly calculated according to parameters such as airflow density velocity viscosity, liquid film density velocity viscosity and flat plate surface liquid nozzle diameter, the stable state of the liquid film is judged according to the LFI value of the non-dimensional parameters, and the stable state of the liquid film is divided into a stable state, a relatively stable state, a transitional state and an unstable state. And a judgment criterion of the stable state of the liquid film is given. The invention provides a dimensionless relational expression and criterion for judging the stable state of the airflow shearing flat plate liquid film, the stable state of the liquid film under the action of airflow shearing can be quickly estimated, a reference is provided for designing the state of the liquid film in active sweating cooling of a hypersonic aircraft, the stable state of the liquid film is kept as much as possible, and the working efficiency is improved. And the situation of cooling working medium waste caused by airflow shearing instability of the liquid film is avoided.
Owner:CALCULATION AERODYNAMICS INST CHINA AERODYNAMICS RES & DEV CENT

Solid oxide fuel cell electrolyte film and preparation method thereof

The invention discloses a solid oxide fuel cell electrolyte thin film and a preparation method thereof, the electrolyte thin film sequentially comprising a transition layer, a self-repairing layer and a compact layer is formed on the surface of one side of a substrate, the transition layer is made into a film through a solid-liquid phase forming process, and first sintering is carried out to obtain the solid oxide fuel cell electrolyte thin film, the self-repairing layer and the compact layer are obtained through the vacuum sputtering coating process at the room temperature, and the compact and thin electrolyte film is obtained at the low preparation temperature, so that the energy consumption cost can be reduced, and commercialized application is facilitated. According to the preparation method, relatively good film-substrate binding force and film compactness can be realized, pores and cracks are not easy to generate under extreme conditions, and the prepared electrolyte film is relatively flat in surface and can realize relatively good interface contact.
Owner:NANOFILM VACUUM COATING SHANGHAI

Preparation method for in-situ synthesis of microparticle reinforced thermal control functional film layer on surface of 7B04 aluminum alloy

A preparation method of a 7B04 aluminum alloy surface in-situ synthesis microparticle enhanced thermal control function film layer can effectively improve the density of the film layer, meanwhile, the film layer is high in infrared emissivity and good in thermal control function, and comprises the steps that firstly, the 7B04 aluminum alloy surface, copper oxide and chromic oxide are pretreated, then a micro-arc oxidation electrolyte is prepared, and the 7B04 aluminum alloy surface is subjected to in-situ synthesis; the pretreated 7B04 aluminum alloy is placed in a stainless steel electrolytic cell of micro-arc oxidation equipment, then the micro-arc oxidation electrolyte is added into the stainless steel electrolytic cell, micro-arc oxidation treatment is conducted on the aluminum alloy through a micro-arc oxidation power source, the electrolyte is continuously stirred in the oxidation treatment process, and the aluminum alloy is subjected to micro-arc oxidation treatment; and finally, obtaining an in-situ synthesized microparticle reinforced thermal control functional film layer on the surface of the 7B04 aluminum alloy, washing the film layer with deionized water, and naturally airing the film layer to obtain the 7B04 aluminum alloy. The composition of the micro-arc oxidation electrolyte is designed, in the growth process of a micro-arc oxidation film layer, copper chromite black particles are synthesized in situ through chemical reaction, the particles and the film layer are metallurgically bonded, and the method has actual application and popularization value.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Thin film forming method, semiconductor substrate manufactured by method, and semiconductor device

The present invention relates to a thin film forming method, a semiconductor substrate manufactured by the method, and a semiconductor device, which can greatly improve the thickness uniformity of a thin film even when the thin film is formed on a highly integrated substrate or a substrate having a complicated structure by using a predetermined reducing agent, and can improve the reliability of the thin film. And the method has the effect of effectively improving the film quality by reducing impurities and improving the density and resistivity of the film.
Owner:SOULBRAIN CO LTD

High-angle Anti-reflection porous film and paint for forming high-angle Anti-reflection porous film

PCT designated stageWO2025173602A1Optical elementsAngle of incidenceReflective layer
The present disclosure provides, inter alia: a novel high-angle anti-reflection porous film having lower surface glossiness in a high-angle region where the incidence angle and the reflection angle exceed 60°; and a novel high-angle anti-reflection laminate in which said high-angle anti-reflection porous film is provided on a substrate. A high-angle anti-reflection porous film according to the present disclosure has a film density of 50-650 kg / m3 and a BET specific surface area (according to JIS Z 8830:2013) of 0.40-1.20 m2 / g. The 85-degree specular glossiness of one surface of the high-angle anti-reflection porous film is preferably 0.0-0.8%.
Owner:KIMOTO CO LTD

Heat-shrinkable polyester film, heat-shrinkable label, and package

Provided is a heat-shrinkable polyester film having a high thermal shrinkage in the main shrinkage direction, a high film puncture strength, a high density, and thus an excellent elastic feeling, and a high bag breaking resistance when a bottle falls. A heat-shrinkable polyester film containing 60 mol% or more and 95 mol% or less of terephthalic acid ethylene glycol units in 100 mol% of all ester units, 5 mol% or more and 40 mol% or less of diethylene glycol in 100 mol% of polyol components, and 0 mol% or more and 5 mol% or less of constituent units derived from a monomer component capable of becoming an amorphous component in all polyester resin components, the film having a hot water heat shrinkage rate when immersed in hot water at 90°C for 10 seconds, a film puncture strength, a film density, and a refractive index in the film length direction within a prescribed range.
Owner:TOYOBO CO LTD

A stain-resistant, high-hardness nano-ceramic paint and its preparation method

This application relates to the field of coating technology, specifically disclosing a stain-resistant, high-hardness nano-ceramic paint and its preparation method. The stain-resistant, high-hardness nano-ceramic paint comprises the following components in parts by weight: 90-120 parts of acrylate emulsion, 40-60 parts of nano-inorganic silicone resin, 5-10 parts of film-forming aid, 20-30 parts of titanium dioxide, 10-20 parts of filler, 0.5-2 parts of formaldehyde-removing aid, 2-3 parts of dispersant, 0.5-1.5 parts of defoamer, 1-2 parts of thickener, and 10-20 parts of water. The acrylate emulsion has a solid content of 46-48% and is made from the following raw materials: a mixed monomer composed of methyl methacrylate, n-butyl acrylate, isooctyl acrylate, and methacrylic acid; a functional monomer composed of triethoxysilane succinic anhydride; a crosslinking monomer composed of diacetone acrylamide and dihydrazine adipate; an emulsifier; an initiator; and water. This application improves both the stain resistance and hardness of the ceramic paint by enhancing the film density of the coating system.
Owner:GUANGDONG WACKE NEW MATERIALS CO LTD

Characterization method for density of dielectric film

The invention provides a characterization method of dielectric film density. The characterization method comprises the following steps: preparing a dielectric film layer on a silicon wafer; measuring the refractive index of the dielectric film layer through a refractive index measuring device, and obtaining first refractive index data; soaking the dielectric film layer in a solution for a first preset time; after the dielectric film layer is taken out, surface moisture of the dielectric film layer is removed; measuring the refractive index of the dielectric film layer through refractive index measuring equipment; measuring the refractive index of the soaked dielectric film layer through refractive index measuring equipment, and obtaining second refractive index data; the refractive index difference value of the first refractive index data and the second refractive index data is calculated, the smaller the refractive index difference value is, the higher the density of the dielectric film layer is, and the larger the refractive index difference value is, the lower the density of the dielectric film layer is. The dielectric film structure density characterization is carried out by using the method provided by the invention, so that the thin film with high refractive index and loose film quality can be effectively screened out, and meanwhile, the preparation process of the high-density dielectric film can be better guided.
Owner:ADVANCED FIBER RESOURCES (ZHUHAI) LTD

Window and electronic device including same

A window and an electronic device including the window are provided. The window includes: a base layer; the functional layer is arranged on the substrate layer; and a cover glass disposed on the functional layer. The functional layer of the window includes: a first coating layer disposed on the base layer, including aluminum oxide (AlOx), and having a film density of about 2.0 g / cm3 or more; and a second coating layer disposed on the first coating layer.
Owner:SAMSUNG DISPLAY CO LTD

Article having a water and oil repellent surface layer

PendingCN122343572APartial hydrolysisSilylene
The present application relates to an article having a water / oil repellent surface layer. An article is provided, which is composed of a glass substrate, a base layer of a silicon oxide as a main component formed on the outer surface of the glass substrate, and a water / oil repellent surface layer formed on the outer surface of the silicon oxide base layer, in which the film density of the silicon oxide base layer is 1.8 to 2.2 g / cm 3 , and the water / oil repellent surface layer is a water / oil repellent surface layer excellent in water / oil repellency, abrasion resistance (eraser abrasion durability), and sliding properties, which is composed of a cured product of a fluorine-containing polyether group-containing polymer having a hydrolyzable silyl group of a specific structure and / or a partial hydrolysis condensate thereof as a main component.
Owner:SHIN ETSU CHEMICAL CO LTD

Cavitated copolyester shrink film with improved density reduction and toughness

PCT designated stageWO2025193488A1Synthetic resin layered productsDensity reductionPolymer science
Disclosed are a cavitated, heat-shrinkable copolyester film containing an organic polymer additive and a process for producing the film. The film has a unique combination of properties, including one or more of high shrinkage, low density, inherent opaqueness, high toughness, and a non-contaminant in the PET recycle stream due to a final shrunk film density of < 1.00 g / cm3. The film is particularly useful for preparing shrink sleeve labels.
Owner:EASTMAN CHEM CO

Method for manufacturing cured film and use of the same

[Problem] To provide a method for manufacturing a cured film having high film density, high film hardness and high etching resistance.[Means for Solution] A method for manufacturing a cured film comprising (1) applying a composition (i) above a substrate; (2) forming a hydrocarbon-containing film from the composition (i); and (3) irradiating the hydrocarbon-containing film with plasma, electron beam and / or ion to form a cured film. Use of the cured film.
Owner:MERCK PATENT GMBH

Silicon carbide semiconductor device and method of manufacturing silicon carbide semiconductor device

A bottom of a trench is an Si plane or a C plane while sidewalls of the trench are an m-plane. In the trench, a gate electrode is provided via a gate insulating film. The gate insulating film is a HTO film with a thickness of at least 50 nm. By a post-HTO-deposition annealing at a temperature in a range of 1250 degrees C. to 1300 degrees C. under a mixed gas atmosphere containing nitric oxide, nitrogen, and oxygen, the film density of the gate insulating film is within a range of 2.21 g / cm3 to 2.38 g / cm3. The total oxygen flow amount of the mixed gas atmosphere of the post-HTO-deposition annealing is at most 5%. The gate insulating film has a two-layer structure including a low-density film that is within 3 nm from a SiC / SiO2 interface and has a relatively low film density, and a high-density film that is at least 3 nm apart from the SiC / SiO2 interface and has a relatively high film density.
Owner:FUJI ELECTRIC CO LTD

Alkali metal halide gradient doped perovskite light absorption layer and full-vacuum preparation method and application thereof

The invention provides an alkali metal halide gradient doped perovskite light absorption layer and a full-vacuum preparation method and application thereof, and belongs to the technical field of perovskite materials. The technical concept of gradient doping-step deposition-synergistic passivation is provided, a vacuum evaporation mode is adopted, and the multi-dimensional contradiction between materials and the technology is overcome by combining alkali metal gradient doping and halogen / pseudo-halogen synergistic passivation; an inorganic framework deposition-organic phase vapor infiltration two-step method is adopted in the process level, temperature conflicts are avoided, and the density of the thin film is improved; rb < + > gradient doping is introduced in material design to form a built-in electric field to inhibit Br <-> migration, and meanwhile, a [K-F] < + + > coordination network and Lewis acid-base passivation sites are constructed through K < + > / F- / SCN <-> co-doping, so that the defect density is reduced.
Owner:TRINA SOLAR CO LTD +1

Display device, electronic device, and method for manufacturing display device

PendingCN121285183ADisplay deviceThin membrane
The invention relates to a display device, an electronic device, and a method for manufacturing the display device. The display device includes: a substrate including an emission area and a non-emission area; a display element layer including an emission layer disposed in the emission area of the substrate; the thin film encapsulation layer is arranged on the display element layer, and the thin film encapsulation layer comprises a first encapsulation layer, a second encapsulation layer and a third encapsulation layer; and a polarizing film disposed on the thin film encapsulation layer. The third encapsulation layer includes: a first layer having a hole; a second layer disposed on the first layer and having a film density higher than that of the first layer; and a third layer disposed on the second layer and having a hole.
Owner:SAMSUNG DISPLAY CO LTD

Imaging element, method for manufacturing the same, stacked imaging element, and solid-state imaging device

A camera element includes a photoelectric conversion section 23 formed by laminating a first electrode 21, a photoelectric conversion layer 23A formed of an organic material, and a second electrode 22. An inorganic oxide semiconductor material layer 23B is formed between the first electrode 21 and the photoelectric conversion layer 23A, includes a first layer 23C and a second layer 23D from the first electrode side, and satisfies ρ1 ≥ 5.9 g / cm 3 and ρ1 - ρ2 ≥ 0.1 g / cm 3 when an average film density of the first layer 23C within 3 nm from an interface between the first electrode 21 and the inorganic oxide semiconductor material layer 23B is set as ρ1 and an average film density of the second layer 23D is set as ρ2.
Owner:SONY GROUP CORP

Substrate processing method

A substrate processing method for forming a carbon-containing film that is inhibited from film peeling due to thermal treatment is provided. The substrate processing method includes: preparing a substrate having a foundation film; forming a carbon-containing film having a film density of 2 g / cm3 or greater on the foundation film by forming a plasma of a processing gas containing a carbon-containing gas; and subjecting the substrate on which the carbon-containing film is formed to thermal treatment. In the forming of the carbon-containing film, for a first time from a start of the forming of the carbon-containing film, an ion energy higher than the ion energy during a second time from an end of first time is supplied to the substrate.
Owner:TOKYO ELECTRON LTD

High-angle reflection resistant porous film and high-angle reflection resistant porous film forming paint

The present disclosure provides a novel high-angle anti-reflective porous film having less surface gloss in a high-angle region of an incident angle and a reflection angle exceeding 60°, and a novel high-angle anti-reflective laminate provided with the high-angle anti-reflective porous film on a substrate, and the like. The high-angle anti-reflective porous film of the present disclosure has a film density of 50 to 650 kg / m 3 , and has a BET specific surface area of 0.40 to 1.20 m 2 / g (according to JIS Z8830 (2013)). The 85-degree specular glossiness of one surface of the above high-angle anti-reflective porous film is preferably 0.0% or more and 0.8% or less.
Owner:KIMOTO CO LTD

Dielectric film activator, and semiconductor substrate and semiconductor device fabricated using the same

The present invention relates to a dielectric film activator, and a semiconductor substrate and semiconductor device fabricated using the same. According to the present invention, by using a dielectric film activator capable of increasing thin film density while reducing the content of by-product carbon compound between a precursor and reaction gas injected into a dielectric film, the capacitance of a dielectric film may be improved, and thin film density may be increased by a simple process.
Owner:SOULBRAIN CO LTD

Method of making cured film and use thereof

Provided is a method for producing a cured film having high film density, high film hardness, and high etching resistance. A method of making a cured film comprising (1) applying a composition (i) over a substrate; (2) forming a hydrocarbon-containing film from composition (i); and (3) irradiating the hydrocarbon-containing film with plasma, electron beams and / or ions to form a cured film. Use of the cured film.
Owner:MERCK PATENT GMBH

Quantum dot film layer with high compactness, preparation method thereof, and QLED light-emitting device and display device

This application relates to the field of quantum dot light-emitting diodes (QLEDs), disclosing a highly dense quantum dot film, its fabrication method, and QLED light-emitting devices and display devices. This application introduces rigid steric materials such as fullerenes, which are smaller in volume than quantum dots and have a diameter of 0.2-2 nm, into the quantum dots to fill the gaps between them. Compared to conventional quantum dot films, the spin-coated quantum dot film produced by this method exhibits significantly improved morphology and better film density.
Owner:BEIJING BOE TECH DEV CO LTD +1

A method for preparing a flexible thermoelectric thin film

PendingCN122443095APolyvinyl alcoholSlurry
The application discloses a preparation method of a flexible thermoelectric film, and belongs to the technical field of thermoelectric material preparation. The method aims to solve the problems of poor slurry dispersibility, low film density and damage to the flexible substrate after high-temperature post-processing in the existing printing process. The core steps include: compounding Tween and a polyvinyl alcohol aqueous solution into a mixed solution, adding Ag2Q powder to prepare printing slurry, wherein Q is selenium or tellurium; coating the slurry on flexible substrates such as cloth and paper through silk screen printing; and finally realizing film layer densification at low temperature by ultrasonic welding. The application guarantees the stability of the slurry through the innovative "Tween-polyvinyl alcohol" compounding system, and realizes high density (porosity ≤ 5%) while perfectly protecting the substrate by using the ultrasonic welding low-temperature process. The method is simple in process, low in cost, and wide in substrate adaptability, and the prepared film has high thermoelectric performance and excellent flexibility, and is suitable for wearable devices and flexible electronic devices.
Owner:ZHONGSHAN ADVANCED ENG & TECH RES INST WUHAN UNIV OF TECH

Ceramic film online thickness closed-loop control system and method based on machine learning

The invention discloses a ceramic film online thickness closed-loop control system and method based on machine learning, and the method comprises the steps: in the production process of a ceramic film, a film thickness sensor and image recognition equipment monitor the film thickness, the film weight and the film density in real time, and transmit data to an AI diagnosis module; after being preprocessed, the data are input into a machine learning model to analyze the film thickness change trend, and abnormality is automatically diagnosed; according to the AI diagnosis result and the film thickness deviation, the system calculates the adjustment amount, generates a control signal, and transmits the control signal to the execution module through the feedback module to adjust production parameters; after adjustment is completed, online detection continues to be carried out; in combination with the relation of film weight, film thickness and film density, a dynamic coupling control strategy is adopted, film thickness control is automatically adjusted, and the stability of the production process is ensured; according to the ceramic film online thickness closed-loop control system and method based on machine learning, the technical target is achieved through real-time detection, feedback and closed-loop control execution.
Owner:GUANGDONG FENGHUA BANGKE ELECTRONIC CO LTD

Thin film formation method, semiconductor substrate and semiconductor device manufactured thereby

The present invention relates to a thin film formation method, and a semiconductor substrate and semiconductor device manufactured thereby. By applying a specific reducing agent, the uniformity of the film thickness can be significantly improved, even when the thin film is formed on a highly integrated substrate or a substrate having a complex structure, and the film quality can be effectively improved by reducing impurities and improving the film density and resistivity.
Owner:SOULBRAIN CO LTD

A method for determining the stable state of a flat plate liquid film sheared by air flow

The present invention discloses a method for determining the stable state of a liquid film on a flat plate sheared by airflow, and belongs to the field of gas-liquid-solid multiphase flow and aerodynamic heat technology. The dimensionless relationship directly calculates dimensionless parameters based on parameters such as airflow density, velocity, viscosity, liquid film density, velocity, viscosity, and liquid nozzle diameter on the flat plate surface. The stable state of the liquid film is judged based on the size of the dimensionless parameter LFI value. The stable state of the liquid film is divided into four states: stable, relatively stable, transitional, and unstable. A criterion for judging the stable state of the liquid film is given. The present invention provides a dimensionless relationship and criterion for determining the stable state of a liquid film on a flat plate sheared by airflow, which can quickly estimate the stable state of the liquid film under the action of airflow shear, and provide a reference for the design of the liquid film state in the active sweat cooling of hypersonic aircraft, so as to keep the liquid film in a stable state as much as possible and avoid the waste of cooling medium caused by the instability of the liquid film due to airflow shear.
Owner:CALCULATION AERODYNAMICS INST CHINA AERODYNAMICS RES & DEV CENT

Method for calculating density of thin film based on molecular dynamics

The invention discloses a method for calculating the density of a thin film based on molecular dynamics, which belongs to the technical field of detection and can be used for quickly predicting and screening an optimal process window on a computer at low cost before an actual deposition experiment is carried out. By simulating the deposition process under different parameters in batches and calculating the density, research and development personnel can preferentially perform experimental verification in the most potential parameter range, so that the expensive'preparation-measurement 'cycle index is greatly reduced, and the research and development expenditure and the material cost are remarkably saved. Meanwhile, different from a traditional experimental method which can only provide macroscopic average density, the method is based on atomic coordinates for calculation and has atomic-scale resolution capability, the overall average density of the thin film can be given, and the density distribution gradient of the thin film in the growth direction or the density condition of a specified local area can be further analyzed. Therefore, how different deposition parameters affect the atomic deposition behavior is fundamentally revealed.
Owner:CNBM RESEARCH INSTITUTE FOR ADVANCED GLASS MATERIALS GROUP CO LTD

Light emitting element, electronic device including the same, and method for manufacturing the light emitting

PendingUS20260130092A1Materials sciencePhotochemistry
A light-emitting element includes a first electrode, a functional layer disposed on the first electrode, a second electrode on the functional layer, and a capping layer on the second electrode. The second electrode includes a first layer on the functional layer, a second layer disposed on the first layer and including a different material from that of the first layer, and a third layer disposed on the second layer and including a different material from that of the second layer. The second layer includes sub-layers each including silver (Ag). The sub-layers include a first sub-layer on the first layer, a second sub-layer on the first sub-layer, and a third sub-layer on the second sub-layer. A film density of the first sub-layer and a film density of the second sub-layer are different, and the film density of the second sub-layer and a film density of the third sub-layer are different.
Owner:SAMSUNG DISPLAY CO LTD

Self-supporting film, electrode, and power storage device

The purpose of the present invention is to provide a thick and flexible self-supporting film containing 80 mass % or more of a graphene material, an electrode including the self-supporting film, and a power storage device. This self-supporting film 21 is produced containing 80 mass % or more of a graphene material, and a polytetrafluoroethylene resin, and configured to have a film density of 0.4-1 g / cm3 and a film thickness of 80-1000 µm. The self-supporting film 21 is laminated on one surface or both surfaces of a collector 22 as an electrode film to form electrodes 20a, 20b. The power storage device is constituted using the electrode 20a or the electrode 20b.
Owner:MATERIALS INNOVATION TSUKUBA INC +1