Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

2876 results about "Vacuum coating" patented technology

Vacuum coating is a mechanized process for applying coatings to lengths of materials.

Low temperature bi-CMOS compatible process for MEMS RF resonators and filters

A method of formation of a microelectromechanical system (MEMS) resonator or filter which is compatible with integration with any analog, digital, or mixed-signal integrated circuit (IC) process, after or concurrently with the formation of the metal interconnect layers in those processes, by virtue of its materials of composition, processing steps, and temperature of fabrication is presented. The MEMS resonator or filter incorporates a lower metal level, which forms the electrodes of the MEMS resonator or filter, that may be shared with any or none of the existing metal interconnect levels on the IC. It further incorporates a resonating member that is comprised of at least one metal layer for electrical connection and electrostatic actuation, and at least one dielectric layer for structural purposes. The gap between the electrodes and the resonating member is created by the deposition and subsequent removal of a sacrificial layer comprised of a carbon-based material. The method of removal of the sacrificial material is by an oxygen plasma or an anneal in an oxygen containing ambient. A method of vacuum encapsulation of the MEMS resonator or filter is provided through means of a cavity containing the MEMS device, filled with additional sacrificial material, and sealed. Access vias are created through the membrane sealing the cavity; the sacrificial material is removed as stated previously, and the vias are re-sealed in a vacuum coating process.
Owner:IBM CORP

Highly wearable vacuum coating ultraviolet curing coatings

ActiveCN101157808AImprove adhesionImproved RCA wear performancePolyurea/polyurethane coatingsWear resistantLacquer
The invention relates to the electronic application-coating field, in particular to uv-curing coating with high wearing resistance and vacuum coating. The compositions and contents of the invention are: 10 wt percent to 30 wt percent of difunctional group polyurethane acrylate, 10 wt percent to 40 wt percent of high functional group polyurethane acrylate, 5 wt percent to 20 wt percent of high functional group acrylate monomer, 0 wt percent to 15 wt percent of monofunctional group acrylate monomer, 1 wt percent to 10 wt percent of acid adhesive promoter, 1 wt percent to 6 wt percent of photoinitiator, 0 wt percent to 5 wt percent of nano wearing resistance materials, 0.1 wt percent to 2 wt percent of additive and 10 wt percent to 50 wt percent of solvent. The invention is designed for providing surface protection for vacuum coating parts of electric products such as mobile phone, MP3, and digital camera, etc., and is characterized by good surface effect, good performances of ultrawear-resistance, high temperature and humidity resistance, anti-cold thermal cycling and anti-yellowing, etc., wherein, RCA wear can be up to more than 1500 times, which can effectively improve the service life of electric products. The invention effectively enhances the adhesion and wearing resistant performance of the uv-curing and vacuum coating dope, solves the matching problem of the bottom and surface lacquer of the uv-curing and vacuum coating dope, and has broad university.
Owner:HUNAN SOKAN NEW MATERIAL

Perovskite-based thin film solar cell and method for preparing same

ActiveCN103490011ASolve problems that are difficult to achieve large-scale productionLow costFinal product manufactureSolid-state devicesSemiconductor materialsPorous carbon
The invention provides a perovskite-based thin film solar cell and a method for preparing the perovskite-based thin film solar cell. The perovskite-based thin film solar cell comprises a transparent substrate, a transparent conducting layer formed on the transparent substrate, a compact layer which is formed on the transparent conducting layer and made of semiconductor materials, a porous insulating layer formed on the compact layer, a porous carbon counter electrode layer formed on the porous insulating layer, and an organic metal semiconductor light absorption material which is filled into pores inside the porous insulating layer and has a perovskite structure. The invention provides application of carbon counter electrodes in the perovskite-based thin film solar cell. Compared with an existing method for preparing the perovskite-based thin film solar cell, the method has the advantages that the counter electrodes are made of carbon materials instead of expensive precious metal materials, and therefore the cost is greatly reduced. The vacuum coating method is replaced by a simple and rapid silk screen print method which allows large-scale production to be achieved, therefore, the cost is further saved, and the achievement of industrial production of the perovskite-based thin film solar cell is facilitated.
Owner:深圳市华物光能技术有限公司

Ultrasonic wave cleaner for coating of optical lens and treatment method thereof

The invention discloses an ultrasonic wave cleaner for a coating of an optical lens and a treatment method thereof, which belong to the fields of metal surface treatment technology, vacuum coating technology and optical technology. The ultrasonic wave cleaner is characterized by performing ultrasonic alkali cleaning, pure water rinsing and ultrasonic pure water rinsing on the optical lens in cleaning medium under the condition of pendular motion respectively, slowly and perpendicularly lifting the optical lens or ensuring that a liquid slowly descends to break away from a workpiece when running water is circularly filtered, and using hot air to dry the optical lens under quiescent conditions. A structure of the ultrasonic wave cleaner is that: a conveyer is provided with traveling girders, the girders are provided with grab hooks, and the hooks are suspended with washing baskets; and different working procedures are finished by different devices, namely a liquid tank body is matched with a pendulous device, a dehydration device and a drying device to finish respective working procedures. The ultrasonic wave cleaner and the method have the advantages that the ultrasonic wave cleaner and the method do not use inflammable, explosive and toxic organic solvents to wash, reduce energy consumption, avoid the air pollution in workshops, can effectively improve the cleanliness of products, and ensure that the adhesive force of the coating of the optical lens is remarkably improved.
Owner:SHANGHAI MINGXING KAICHENG ULTRASONIC TECH

Method of manufacturing vacuum composite film coating on surface of neodymium iron boron magnet

The invention relates to the technical filed of vacuum plating, in particular to a preparation method for conducting vacuum compound plating on the surface of a neodymium iron boron magnet, which is characterized in that the preparation method comprises the following steps: A. pre-treatment, the mixed liquor of washing liquid and purified water is used for conducting oil removal and parting medium washing to the magnet surface in an ultrasonic wave cleaner; B. ion cleaning and activation, the pre-treated neodymium iron boron magnet which is dried at 80-100 DEG C for 5-10 minutes undergoes bombardment activation of a glow plasma in vacuum environment, so as to increase surface activation energy; and C. vacuum plating, vacuum plating treatment is conducted to the neodymium iron boron magnet washed by ions in a vacuum chamber, and a metal plating is prepared on the surface. The deposited metal film on the surface of the neodymium iron boron magnet has the advantages of good stability, high bonding force and tightness, stronger anti-corrosion performance in cold and hot alternation environment. Furthermore, in the physical vapor deposition plating process, the plating thickness is affected much less by the magnet workpiece corner than in electroplating and chemical plating, and the pollution problem is avoided in the preparation process.
Owner:兰州大成科技股份有限公司

Flexible gallium oxide-based solar-blind ultraviolet photoelectric detector and preparation method thereof

The invention discloses a flexible gallium oxide-based solar-blind ultraviolet photoelectric detector and a preparation method thereof. The preparation method specifically comprises the following steps: preparing a gallium oxide micron band material by utilizing a vapor deposition method, by taking the band material as a light-sensitive material of solar-blind ultraviolet light, transferring the gallium oxide micron band material onto a flexible substrate, and preparing metal electrodes at two ends of the gallium oxide micron band by combining masking and vacuum coating methods so as to finally obtain the flexible gallium oxide-based solar-blind ultraviolet photoelectric detector. According to the preparation method disclosed by the invention, the flexible gallium oxide-based solar-blind ultraviolet photoelectric detector is prepared first by combining the flexible gallium oxide micron band material with the flexible substrate, and the device has the bending characteristic aiming at characteristic response and flexibility of the solar-blind ultraviolet light. The flexible detector has repeated bending restorability and can be applied to the fields of wearable detection equipment, curved screen interaction equipment, bionic tissues and the like. Moreover, the convenience and freedom degree of arrangement and design of the solar-blind photoelectric detection system can be greatly improved.
Owner:FUJIAN AGRI & FORESTRY UNIV

Method for preparing graduated color film through magnetron sputtering machine

The invention discloses a method for preparing a graduated color film through a magnetron sputtering machine. The method comprises the following steps that S1, an optical film system is designed; S2,a baffle is designed, and the shape of the baffle is designed according to thickness change of an optical thin film structure simulated by software; S3, vacuum coating is conducted; and S4, color andoptical performance examination is conducted, the color LAB value, visible light reflectivity curve and visible light transmittance curve of a product obtained after vacuum coating are detected, if the test result is qualified, mass production preparation can be made, and if the test result is unqualified, operation returns to the step S1. A transition area of a graduated color film prepared withthe method is natural in gradual color change, the product color is easy to adjust, and graduated color films of different colors and visual effects can be prepared according to user preparations. Compared with electric beam evaporation deposition, a film layer prepared with the magnetron sputtering machine is compact in structure, the refractive index is stable, the film layer is more stable in optical performance, and thus color stability is better.
Owner:SHENZHEN THREE BEAM COATING TECH CO LTD

Method for designing coating uniformity correction mask for spherical optical elements on planetary rotating jigs of vacuum coating machines

The invention discloses a method for designing a coating uniformity correction mask for spherical optical elements on planetary rotating jigs of vacuum coating machines, which is used for studying the film thickness distribution of a plane or spherical optical element (subjected to coating) on a planetary rotating jig through establishing a coating model in a vacuum environment. Through enabling an optical element coating process in a planetary rotating jig to be equivalent to a coating process in a simple rotating jig, the initial shape of the coating uniformity correction mask in the planetary rotating jig is designed. Through optimizing the arc length magnification factor of the correction mask by using a computer until the film thickness uniformity reaches the optimal result, the actual shape of the coating uniformity correction mask for the spherical optical elements is obtained. According to the invention, the control on the film thickness uniformity of the spherical optical element with a large caliber and a large caliber / curvature radius ratio can be realized, thereby obtaining the uniformity of multilayer-film spectral characteristics of the spherical optical element with a large caliber and a large caliber / curvature radius ratio.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Production method of chromium-aluminium alloy target material

The invention relates to a production method of a chromium-aluminum alloy target material, which includes the following steps: (1) placing chromium powder and aluminum powder into a V-shaped mixer for mixing; (2) placing the powder into a cold isostatic pressing sheath, vacuumizing, sealing, suppressing for 10 to 20 minutes, then placing in a vacuum self-propagating high-temperature synthetic furnace, and performing self-propagating reaction to acquire foamed chromium-aluminium alloy; (3) smashing the chromium-aluminium alloy into alloy powder with size of -200 mesh, placing the alloy powder in the cold isostatic pressing sheath for suppressing, so as to obtain a chromium-aluminium alloy blank; (4) placing the alloy blank in a steel sheath for vacuum degassing, then, performing hot isostatic pressing sintering treatment to obtain a chromium-aluminium alloy ingot; and (5) machining the chromium-aluminium alloy ingot to obtain a finished chromium-aluminium alloy target material. According to the invention, after the two raw materials are fully mixed and before the hot isostatic pressing sintering treatment is carried out, the alloying treatment in the step (2) is particularly adopted, so the prepared chromium-aluminum alloy target material has high density, uniform crystallite size distribution and excellent vacuum coating property.
Owner:北京九州新科科技有限公司

Gradual color changing base plate preparing device and gradual color changing base plate preparing method

The invention provides a gradual color changing base plate preparing device and a gradual color changing base plate preparing method. The gradual color changing base plate preparing device comprises a vacuum coating chamber, a first installing part, a second installing part, a drive part and a baffle. The vacuum coating chamber is used for containing the first installing part, the second installing part and the baffle. The first installing part is used for installing a base plate to be coated. The base plate comprises a first surface and a second surface which are oppositely arranged. The second installing part is used for installing a coating source. The coating source is adjacent to the first surface of the base plate and is used for providing a coating material. The drive part is used for driving the vacuum coating chamber to rotate. The baffle is arranged between the base plate and the coating source. The baffle comprises at least one shielding unit, the different parts of the shielding unit are different in width, and the shielding unit is used for conducting uneven shielding on the coating material sent by the coating source so that an optical film with the thickness linearly changing can be formed on the first surface.
Owner:NANCHANG O FILM TECH CO LTD +2

Insertion piece for measuring transient heat flow density distribution in fuel cell

The invention discloses an insertion piece for measuring heat flow density distribution in a fuel cell, which is a device for measuring the heat flow density distribution in the fuel cell. The insertion piece comprises a gold-plated stainless steel substrate, and leaks and ribs, which are in the same sizes, the same shapes and the corresponding positions with grooves and ridges on a flow field plate of the fuel cell to be measured, are arranged on the substrate. A thin film heat flow meter is arranged on the rib between the adjacent leaks or holes on the measuring insertion piece respectively, the vacuum film coating technology is adopted for vapor deposition of seven layers of thin films, leading-out wires of the thin film heat flow meters extend to the edge of the substrate by adopting the method of printing a circuit, and a standard wiring port connected with an external circuit is further formed. The measuring insertion piece is placed between the flow field plate of the fuel cell and a membrane electrode. The insertion piece for measuring the heat flow density distribution in the fuel cell is completely independent of a measured object, and the fuel cell does not need to be transformed; furthermore, as the placement position of the insertion piece is very near to the membrane electrode, the insertion piece can measure the real-time heat flow density distribution situation in the fuel cell.
Owner:BEIJING UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products