69 results about "Conformal coating" patented technology

Aspects of the disclosure include an implantable composition / medical device encapsulating insulin-producing cells for use in the treatment and management of diabetes, generally comprising a multilayer lattice structure fabricated from a continuously bioprinted cell-laden core / shell fiber, the lattice structure having a defined infill density and at least coating applied to the lattice post-printing, and preferably at least one conformal coating. In this way, multilayer lattice structures are provided with improved stability, retrievability, and functionality.

A coating composition comprising at least one film forming component including a water-based carrier, a resin and at least one additive where the coating composition does not contain a high volatile organic compound (VOC) content and the resin is present in an amount sufficient and configured to form a conformal film when applied to a substrate at room temperature is disclosed. A conformal coating, a method of making the coating composition, a method of using the coating composition to protect substrates such as electronic devices including printed circuit board assemblies (PCBAs), from unwanted contaminants. Substrates coated with such conformal coatings are also disclosed.

This utility model discloses a coating equipment for drone parts that incorporates vacuum adsorption, relating to the field of drone manufacturing technology. It aims to solve the technical problem that current conformal coating machines are inconvenient for vacuum adsorption and fixation of drone body shells of different sizes. The equipment includes a coating machine body. This utility model uses springs to equidistantly arrange several sets of adsorption and fixing tubes on a rectangular platform frame. A fastening base is arranged at the bottom of each adsorption and fixing tube. A fastening frame is slidably arranged at the bottom of the rectangular platform frame. Therefore, when the coating machine body is coating the drone body shell, the operator can directly place the drone body shell onto the adsorption and fixing tubes on the rectangular platform. The operator can then press down on the drone body shell, which will simultaneously press down the adsorption and fixing tubes in contact with its bottom edge. The fastening frame and fastening base then secure the pressed adsorption and fixing tubes.

A method for vacuum gap formation on a dielectric substrate uses area selective deposition (ASD), such as atomic layer deposition (ALD) or chemical vapor deposition (CVD), of a hardmask material on a substrate patterned with a self-assembled monolayer (SAM) and metal features. Due to the presence of the SAM, the hardmask material reaches, but does not touch the metal features leaving areas that will form gaps on the resultant hardmask when the SAM is removed from the substrate. Etching of the dielectric substrate forms trenches in the areas of the gaps. When a non-conformal coating is deposited on the dielectric substrate, vacuum gaps form in the trenches as the non-conformal coating enters into the trenches, but closes off at the surface of the substrate prior to the complete filling of the trench.

The invention relates to the technical field of coatings, in particular to dual-curing conformal coating as well as a preparation method and application thereof. The dual-curing three-proofing paint is composed of siloxane containing oxazolidinyl groups, a UV oligomer containing isocyanate groups, a diluting monomer, a water removal agent, a photoinitiator, a wetting agent, a catalyst and the like. Wherein the siloxane containing the oxazolidinyl group has two functional groups of long carbon chain oxazolidine and siloxane, the long carbon chain oxazolidine can realize rapid moisture curing of oligomer and does not generate volatile harmful substances, and meanwhile, hydrolysis residues of the long carbon chain oxazolidine can plasticize the conformal coating and reduce adhesion loss caused by shrinkage. On the other hand, siloxane groups can form a stronger physical or chemical action with a base material, so that the adhesive force to the base material is improved. In conclusion, the three-proofing paint has excellent low surface tension and high wettability, can effectively wet the polluted surface of the PCB and form interaction, has the characteristics of excellent adhesive force, salt mist resistance, high flexibility and the like, and has very high market application value.

Moisture-curing coating compositions, processes for making the same and uses for the same. The composition includes a Component (A) of one or more linear hydroxyl terminated organopolysiloxanes, a Component (B) of one or more organopolysiloxane resins, a Component (C) of one or more organosilicates, a Component (C) of one or more organosilicates, a Component (D) of one or more alkoxysilanes having at least one tertiary amino group, a Component (E) of one or more alkoxysilanes having at least one primary or secondary amino group and a Component (F) of one or more UV-fluorescent pigments. Where the one or more alkoxysilanes having at least one tertiary amino groups (D) have the following general formula (IV) R3R4N—(CR52)—Si(R2)3-x(OR1)x.

A structure comprising a preferably high-resistivity substrate comprising a superconducting vertical interconnect SVI (100) extending through the substrate (101) from a first side (101a) to a second side (101b) of the substrate (101), the second side (101b) being opposite to the first side (101a), said SVI (100) comprising: a first interconnect portion (103) extending from the first side (101a) into the substrate (101) without reaching the second side (101b) of the substrate (101), a plurality of second interconnect portions (104) extending from the second side (101b) to the first interconnect portion (103) thus joining with the first interconnect portion (103), a superconducting conformal coating (105) covering at least sidewalls (103a) of the first interconnect portion (103) and at least a portion of sidewalls (104a) of the plurality of second interconnect portions (104a), and a continuous superconducting path from the first side (101a) to the second side (101b) of the substrate (101), said path at least partially formed by the conformal coating (105). The disclosure further relates to a method of forming a superconducting vertical interconnect.

A radiation shielding material for use in spacecraft comprises boron carbide particles dispersed in an epoxy matrix. In one aspect, the material is formed into modular panels attachable to satellite structures for attenuation of neutron and charged particle radiation. In another aspect, the boron carbide epoxy mixture is applied as a conformal coating to satellite components and cured in place to provide localized shielding. The composite may also be used to pot electronic components within a protective volume. The method of fabrication includes mixing boron carbide with epoxy resin and hardener, stirring until homogeneous, and curing the mixture to form a solid shielding structure. The system provides effective radiation mitigation with reduced weight and form factor compared to traditional metal or high-density polymer shields, and is compatible with aerospace integration and environmental requirements.

Discussed is an optical communication device that can include a first optical element, a second optical element configured to perform optical communication with the first optical element, a printed circuit board (PCB) where the first optical element and the second optical element are arranged, and a first conformal coating layer of a first polymer material, the first conformal coating layer being coated onto at least a part of a surface of the PCB, in which the optical communication is performed using the first conformal coating layer as an optical waveguide.

Coated substrate including coatings including a first layer that includes a conformal coating, an intermediary layer that includes an adhesion promoter formed on the first layer, and an outer omniphobic layer that includes a fluoroalkyl group formed on the intermediary layer, are provided herein. Methods of condensing liquids having surface tensions of from about 10 mN / m to about 72 mN / m on the coated substrate are further provided. Methods of forming coated substrates are further provided.

The invention discloses a UV moisture-cured three-proofing paint composition with low odor after curing and a preparation method of the UV moisture-cured three-proofing paint composition. The cured low-odor UV moisture curing three-proofing paint composition is prepared from the following components in parts by mass: 50 to 70 parts of bifunctional aliphatic urethane acrylate resin, 10 to 30 parts of cyclic trimethylolpropane formal acrylate, 10 to 30 parts of isobornyl methacrylate and 5 to 10 parts of a photoinitiator. According to the application, low-odor monomers such as cyclic trimethylolpropane formal acrylate and isobornyl methacrylate are added to replace irritant monomers, so that the problem of strong odor of the conformal coating is greatly reduced; by adding the macromolecular photoinitiator, the problem that the residual initiator on the paint film volatilizes due to heating to generate odor is solved, and the problem that the odor volatilizes due to the influence of temperature even if the residual initiator exists due to the fact that the photoinitiator is macromolecular is solved.

This utility model discloses a multi-layer potting structure for a high-voltage sensor, relating to the technical field of voltage sensor potting structures. It aims to solve the problem of electro-corrosion of IC devices caused by the aging of internal filling materials in existing sensors, ultimately leading to severe and unstable zero-point drift in the voltage sensor. The key technical solution includes a circuit board with components fixedly connected to its upper end. The components are coated with a conformal coating, and a silicone protective layer is fixedly connected to the outside of the conformal coating. A polytetrachloroethylene (PTFE) shell for protection is fixedly connected to the outside of the silicone protective layer, and a high-pressure epoxy adhesive layer is fixedly connected to the outside of the PTFE shell, achieving sufficient and multi-level protection.

Methods for preparing a nanotube membrane for use in a pellicle membrane using dry printing are disclosed. Nanotube fibers are produced in a reaction vessel and dry sprayed onto a filter to form the nanotube membrane. The thickness of the nanotube membrane can be controlled by moving the reaction vessel and the filter relative to each other, or by further processing to reduce the thickness of the layer deposited onto the filter. This method reduces the number of process steps, reducing overall production time, and can also be used to produce larger membranes. The pellicle membrane can be formed with multiple layers and has a combination of high transmittance, low deflection, and small pore size. A conformal coating may applied to an outer surface of the pellicle membrane to protect the pellicle membrane from damage that can occur due to heat and hydrogen plasma created during EUV exposure.

This utility model relates to the field of conformal coating production technology and discloses an additive dispensing device for conformal coating production. The device includes a mixing tank with three supporting legs arranged circumferentially at the bottom. A first motor is mounted on the top of the mixing tank. This additive dispensing device uses a control device to control a second motor to drive a winding device in forward and reverse rotation. The winding device winds or releases a pull rope, which in turn causes a baffle to slide inside the feed cylinder, thereby controlling the amount of additive dispensed. Simultaneously, a flow sensor monitors the additive flow rate in real time and feeds the data back to the control device. The control device controls the second motor according to a preset dispensing amount, achieving precise dispensing, significantly reducing manual operation, improving the performance stability of the conformal coating, and reducing batch-to-batch product performance differences.

Methods and materials used for production of constructs having a porous open or semi-open celled structure. Constructs may include a porous matrix as a base and a biocompatible conformal coating thereon.

The invention relates to the field of electronic component protection materials, in particular to a triple-curing composition, a preparation method and a protection method of an electronic component. The composition comprises the following components in parts by weight: 20-50% of first resin, 20-50% of second resin, 10-40% of a reactive diluent, 1-5% of a free radical photoinitiator, 1-4% of a cationic photoinitiator, 1-5% of a moisture curing coupling agent and 0.01-2% of a catalyst, the first resin has a UV free radical-moisture dual curing function; and the second resin has a UV free radical-cation curing function. The organosilicon three-proofing conformal coating has the advantages of fast curing, deep curing, excellent environmental adaptability and traceability, and can be cured by UV free radicals, UV cations and moisture.

The present disclosure relates to a solvent-free moisture curing silicone conformal coating used for the surface protection of circuit boards in the electrical and electronic industries and a preparation method thereof. The solvent-free moisture curing silicone conformal coating comprises (A) a hydrolyzable functional group-terminated linear polysiloxane (I); (B) a hydrolyzable functional group-containing silicone resin with a three-dimensional structure (II); (C) a hydrolyzable functional group-containing crosslinking agent; (D) a catalyst; (E) an adhesion promoter. The solvent-free conformal coating of the present disclosure has low viscosity, high strength and good toughness, and can meet the traditional coating process such as spraying, brushing, dipping, etc., while satisfying the surface protection of the circuit board. Compared with the traditional solvent-based silicon conformal coating, the solvent-free silicon conformal coating can be cured by moisture, the VOC content released during the curing process is low, and the harm to the environment and occupational health is small.

This invention relates to a moisture-proof protection device and packaging method for circuit boards, belonging to the field of circuit board processing technology. The moisture-proof protection device and packaging method for circuit boards includes a support frame, a conveying mechanism on the upper side of the support frame, a fixed frame above the conveying mechanism in the middle of the support frame, a spraying mechanism on the fixed frame, and a reciprocating mechanism on the fixed frame to drive the spraying mechanism to move back and forth. The spraying mechanism includes a nozzle slidably mounted on the upper side of the fixed frame, a metering pump fixedly mounted on the upper side of the fixed frame, and a paint tank on the upper side of the fixed frame. The input end of the metering pump is connected to the paint tank via a hose, and the output end of the metering pump is connected to the nozzle via a hose. This invention uses the reciprocating mechanism to drive a slide to move back and forth within a groove, allowing the nozzle on the slide to reciprocate during the application of conformal coating to the circuit board, thus improving the efficiency and uniformity of the spraying process.

This invention provides a lithium-ion battery cathode material of lithium manganese iron phosphate and its preparation method. The preparation method specifically includes: S1, preparation by dopamine oxidative self-polymerization; S2, preparation of ultrafine LMFP@C composite material by single-point doping; S3, preparation of single-crystal LMFP@C. ‑ Preparation of @C double-coated multi-site doped composite material: LMFP@C ultrafine powder was annealed in a multi-functional sintering furnace at 270°C-650°C for 1-4 hours to form Na + / La 3+ / Cl ‑ LMFP@Cl, a multi-site doped single-crystal LMFP double-shell composite material that partially replaces Li sites, Mn / Fe sites, and PO4 sites, respectively. ‑ @C. This invention addresses the problems of manganese leaching, poor conductivity, and poor high-temperature stability in lithium manganese iron phosphate cathode materials. It synergistically utilizes single crystallization, multi-site multi-component element doping, and surface double coating measures. The modification strategy is achieved through oxidative self-polymerization conformal coating-melt quenching-recrystallization annealing technology. It has the advantages of simple operation, liquid phase synthesis, high yield, and low cost, making it suitable for large-scale production.

[Problem] To provide a wettability control agent for rock surfaces which is able to hydrophilize rock surfaces through conformal coating. [Solution] A wettability control agent for rock surfaces, which hydrophilizes the rock surfaces through conformal coating, the wettability control agent comprising silica particles (a) having a DLS average particle diameter, as determined by the dynamic light scattering method, of 5-200 nm and an aqueous medium (b), wherein at least some of the silica particles are coated with a silane compound (c) having a hydrophilic organic group; a method for controlling the wettability of rock surfaces using the wettability control agent; or a method for evaluating the wettability of a rock surface by utilizing the wettability control agent.

This invention discloses a conformal coating, its preparation method, and its application, belonging to the field of coatings. The conformal coating comprises the following components by weight percentage: 45%-65% base resin, 25%-50% reactive diluent, 2%-6% initiator, 7%-14% dehydrating agent, and 0%-0.8% additives; wherein the base resin contains NCO groups, and the dehydrating agent includes both chemical and physical dehydrating agents. By ensuring the synergistic effect of the various components in the conformal coating under specific proportions, not only are excellent curing properties guaranteed, resulting in excellent mechanical properties of the coating film, but the conformal coating also has a longer shelf life and service life.

The invention is titled Conformal Coating Mask and System for a Component. The invention provides a conformal coating mask (300) for use with a turbine component having a plurality of cooling holes (201). The conformal coating mask (300) includes at least two anchors (301, 310); a plurality of radial mask strips (303) integrally formed with each of the at least two anchors (301, 310) and extending between the at least two anchors (301, 310); and at least one coating mask fixation insert (330). Each coating mask fixation insert of the at least one coating mask fixation insert (330) is integrally formed with a respective at least one radial mask strip (303); wherein the plurality of radial mask strips (303) align with and cover the plurality of cooling holes (201).

The invention relates to the technical field of electromagnetic shielding materials, in particular to a macromolecule-based conformal electromagnetic shielding film and a preparation method thereof.The preparation method comprises the steps that a thermoplastic macromolecule matrix and conductive filler are compounded in a melt blending mode, and two conductive composite materials with the high filler content and the low filler content are formed; the composite material with the high filler content and the composite material with the low filler content are subjected to melt blending, and the composite material with the similar bicontinuous phase structure is constructed; forming the composite material into an initial sheet; the preparation method comprises the following steps: carrying out extension orientation on an initial sheet under the condition that the temperature is higher than the glass-transition temperature of the initial sheet, and then cooling and shaping under the condition of keeping tension, so as to prepare the electromagnetic shielding film with the thermal shrinkage characteristic. The defects of an existing electromagnetic shielding material in the aspects of flexibility, light weight, large-area preparation and complex curved surface conformal fitting are effectively overcome.

A process for conformally coating passive surface mount components soldered to a printed circuit board in a lidless flip-chip ball grid array package includes attaching a stiffener ring to the substrate before forming a conformal coating on the passive surface mount components. The stiffener ring is attached to the substrate such that a plurality of passive surface mount components and an integrated circuit die are housed within an opening formed by the stiffener ring. After attaching the stiffener ring to the substrate, a conformal coating is formed on the passive surface mount components. The conformal coating extends over, around, and under each of the passive surface mount components. Products manufactured according to this process are also disclosed.

An electrically-dissipative coating comprises an electrically-dissipative material, wherein the electrically-dissipative coating is uniform and conformal, wherein the electrically-dissipative coating has a thickness ranging from about 10 nm to about 900 nm, and wherein the electrically-dissipative coating comprises one or more first material-containing layers and one or more second material-containing layers, the one or more first material-containing layers consisting of a metal or a metal alloy comprising at least one of Al, Y—Zr, Mg—Al, or Ca—Al, and the one or more second material-containing layers consisting of a transition metal, a rare earth, a main group metal, a semiconductor, or an alloy thereof.

The invention relates to a method for evaluating the compatibility of a conformal coating material and an electronic adhesive in electronic assembly, which comprises the following steps of: coating the conformal coating material to be detected and the electronic adhesive on a printed circuit board, and contacting the conformal coating material with the electronic adhesive to obtain a sample plate to be detected; performing a temperature cycle environment test and a humid and hot environment test on the to-be-tested sample plate to obtain a test sample plate; obtaining the difference between the physicochemical properties of the conformal coating material and the electronic adhesive before and after the test, wherein the physicochemical properties comprise at least one of surface appearance, conductivity, organic matrix material components, thermal decomposition temperature, surface insulativity and appearance of the interface of the conformal coating material and the electronic adhesive; and evaluating the compatibility between the conformal coating material and the electronic adhesive according to the difference of the physicochemical properties. According to the method, the compatibility evaluation dimension and standard of the conformal coating material and the electronic adhesive are defined, and the risks of short circuit, degumming, failure and the like of electronic products are reduced.

The utility model discloses a circuit board spraying device, which comprises a shell, a spraying mechanism, a first limiting plate, a second limiting plate, a rotating motor, a first clamping assembly and a second clamping assembly, and is characterized in that the shell comprises a first side plate and a second side plate which are oppositely arranged; the spraying mechanism is arranged in the shell and located between the first side plate and the second side plate. The first limiting plate is arranged close to one side, facing the second side plate, of the first side plate; the second limiting plate is arranged close to one side, facing the first side plate, of the second side plate, and the second limiting plate and the first limiting plate are oppositely arranged; the rotating motor is arranged on the side, facing the second limiting plate, of the first limiting plate. The first clamping assembly is arranged at the output end of the rotating motor; the second clamping assembly is rotationally arranged on the side, facing the first limiting plate, of the second limiting plate, and the second clamping assembly and the first clamping assembly are oppositely arranged. The circuit board spraying device can solve the problems that when an existing circuit board spraying device sprays conformal coating on a circuit board, operation is tedious, and efficiency is low.

The invention discloses an automatic assembly process method and production line of a water cooling plate assembly, and relates to the technical field of power electronic equipment manufacturing. The automatic assembly process method of the water cooling plate assembly comprises the steps that a first mechanical arm is controlled to grab a circuit board and place the circuit board on a tool plate; controlling a second manipulator to grab the integrated circuit substrate and stack the integrated circuit substrate on the circuit board; controlling the tin soldering robot to tin the connecting pins of the two; a three-proofing paint spraying device is controlled to spray three-proofing paint to the circuit board and the welding area; controlling a silicone grease coating device to operate so as to coat the coating surface of the circuit board with silicone grease; the water cooling plate assembling device is controlled to operate, so that the coating face of the circuit board is attached to the water cooling plate, and the circuit board is locked and attached to the water cooling plate; and the joint assembling device is controlled to operate, so that the water pipe joint is locked and attached to the water pipe interface of the water cooling plate. According to the technical scheme, the technical problem that the assembling efficiency of the water cooling plate assembly is low can be solved.

A pellicle assembly includes a pellicle membrane and a conformal coating on an outer surface of the pellicle membrane. The pellicle membrane can be formed with multiple layers and has a combination of high transmittance, low deflection, and small pore size. The conformal coating is intended to protect the pellicle membrane from damage that can occur due to heat and hydrogen plasma created during EUV exposure.

An LMFP particle is disclosed, the LMFP particle comprising active material decorated with an engineered coating material, the coating material comprising at least one material selected from a group comprising: ionic compounds of V5+; Mg2+; Ti4+; Zr4+; Nb5+; W6+; Cr6+; Mo6+; Al2O3; ZrOx; TiO2; Nb2O5; and WO3, and encapsulated in conductive carbon material; and binding material. An LMFP cathode is also disclosed, the LMFP cathode comprising active material, conductive carbon material; and engineered coating material decorated on the surface of the active material, the. A method for forming the engineered coating material is also disclosed.