229results about "Printed circuit coating" patented technology

A modified graphite oxide material contains a thermally exfoliated graphite oxide with a surface area of from about 300 m2 / g to 2600 m2 / g, wherein the thermally exfoliated graphite oxide displays no signature of the original graphite and / or graphite oxide, as determined by X-ray diffraction.

A coating method has running step of running a nozzle and / or a base material, change step of changing discharge-port slit widths of said nozzle, and coating step of discharging a coating solution from said slit and coating said base material with said coating solution; wherein said running step, change step, and coating step are executed by combining them.

A spray coating apparatus for spraying material on a substrate includes a frame and a gantry coupled to the frame. The gantry may be configured to provide x-axis, y-axis and z-axis movement. A device is coupled to the gantry. The device may be configured to rotate about the z-axis and pivot about a point on the z-axis. A spray head is coupled to the device. A controller is coupled to the gantry and the spray head. The controller may be configured to control the automated movement of the gantry to provide x-axis, y-axis and z-axis movement and rotational and pivoting movement of the spray head. Other embodiments of the spray coating device and related methods are further disclosed.

An applicator for dispensing a conformal coating material onto a substrate. The applicator has a body with a nozzle having a dispensing orifice at a distal end of the body, and assist air is supplied to a location adjacent the dispensing orifice. A seat is disposed in the nozzle around the dispensing orifice, and an end of a needle is movable into contact with and through the seat to terminate a flow of the coating material through the dispensing orifice and eliminate any coating material flow path downstream of the seat. A needle guide is used to laterally support the needle above the nozzle. The distal end of a nozzle is the distal end of the applicator and is exposed for cleaning.

Printed electronic device comprising a substrate onto at least one surface of which has been applied a layer of an electrically conductive ink comprising functionalized graphene sheets and at least one binder. A method of preparing printed electronic devices is further disclosed.

A method of noncontact dispensing is provided for conformal coating applications by jetting a viscous material onto a substrate. Dispensing by a jetting process results in small wetted areas thus providing highly discrete and selective conformal coating capabilities. Enhanced selectivity permits the coating of small areas and geometries and provides excellent edge definition between coated and uncoated areas.

An electric circuit is applied to an object having a curved surface. The curved surface of the object is divided into sections, and the circuit is applied one section at a time. The circuit is formed between layers of dielectric material. The dielectric is applied by a computer-controlled device, which controls the position of a spray head and the rotation of the object, such that the spray head is held substantially perpendicular to the surface of the object at all times, and such that a controlled thickness of dielectric material can be deposited. The fine-featured circuits formed by the invention are rugged, and can be used on objects intended to be exposed to harsh environments.

A process for manufacturing a transparent body for use in a touch screen panel is provided. The process includes: depositing a first transparent layer stack over a transparent substrate, wherein said first transparent layer stack includes at least a first dielectric film with a first refractive index, and a second dielectric film with a second refractive index different from the second the first refractive index; providing a structured transparent conductive film in a manner such that the first transparent layer stack and the transparent conductive film are disposed over the substrate in this order, and wherein the structured transparent conductive film has a sheet resistance of 100 Ohm / square or below; and providing a transparent adhesive onto the structured transparent conductive film configured for attaching the layer stack to the touch screen panel.

Systems and methods for applying liquid coating materials to a substrate, such as an electronic component or circuit board. A control system (18, 24, 26) of a coating system (10) controls an applicator (16) and a robot (14) moving the applicator (16) to apply the liquid coating material to the substrate (12) in accordance with the information contained in a coating program. The control system (18, 24, 26) determines a volume of liquid coating material actually dispensed onto the substrate (12) during the coating program, and compares the dispensed volume to a desired dispensed volume of liquid coating material to produce an error signal representing the difference between the calculated and desired volume values. The control system (18, 24, 26) uses the error signal to change the dispensed volume of liquid coating material on a subsequent substrate by a future coating program.

Systems and methods for applying a conformal coating material to a substrate, such as an electronic component or circuit board. The systems and methods rely on a pressure-regulated fluid circulation loop connecting an outlet of a pump with an inlet of a pump and an applicator that is connected in fluid communication with the fluid circulation loop. Amounts of the conformal coating material dispensed by the applicator, which are diverted from the fluid circulation loop, may be replenished by fresh amounts supplied from a non-pressurized reservoir, which are siphoned by the pump into the fluid circulation loop.

Disclosed is a coating system for the selective application of coatings to substrates to apply a uniform coating to selected areas of the substrate without the need for masking. The system comprises a first coating applicator for coating large areas of the substrate, a second coating applicator for coating small areas of the substrate, a motion and positioning system for both coating applicators and a system controller. Also disclosed is an ultrasonic spray coating system comprising an ultrasonic transducer with spray forming head, integrated fluid delivery device with air and liquid supply passage ways, support brackets and an ultrasonic power generator.

An object of the invention is to provide a simple method capable of easily forming a metal film on a surface of a perforated substrate that is adjacent to the hole in the substrate. The metal film forming method includes a step of heating a perforated substrate having a hole while a surface of the substrate adjacent to the hole is in contact with a conductive ink containing a metal salt and a reducing agent.

The invention relates to a packaging substrate resistance welding processing method, comprising the steps of: printing for the first time: printing a first layer of resistance welding ink on the surface of a core plate; performing windowing for the first time: windowing the first layer of resistance welding ink to obtain a first window; grinding: grinding the surface of the first layer of resistance welding ink to be flat; printing for the second time: printing a second layer of resistance welding ink on the first layer of resistance welding ink and the first window; and performing windowing for the second time: windowing the second layer of resistance welding ink to obtain a second window, wherein the second window is located in the scope of the first window. According to the invention, through twice resistance welding ink printing and twice windowing, the planeness error of the second layer of resistance welding ink on the external surface of the first layer of resistance welding ink is smaller than a micrometer grade; in addition, the second layer of resistance welding ink in the scope of the first layer of resistance welding ink is windowed for the second time to obtain a second window; twice printing does not influence windowing on a packaging substrate.

A coating system with an applicator that has an air cylinder with a needle valve. A control has a timer that provides a string of electrical pulses to a solenoid. With each pulse, the solenoid applies pressurized air to a cylinder piston, thereby opening the needle valve and permitting coating material to flow past the needle valve. The needle valve is closed for durations of time between pulses, and the coating material is ejected from a dispensing needle in response to closings of the needle valve.

An automatic spraying method is used for spraying flux of wave solder oven. A first optical sensor senses the width of a printed circuit board (PCB) to obtain a first set parameter, and the first set parameter is stored in an address designated by a first register. A second optical sensor senses the length, the width and the spraying direction of the PCB to obtain a second set parameter, and the second set parameter is stored in an address designated by a second register. The control parameters such as initial spraying position, spraying area and spraying speed are calculated with reference to the first and the second sets parameters. The flux is sprayed on the PCB by a spray gun according to the control parameters.

An example of droplet discharge device includes a discharge path (12) having an end that constitutes a discharge opening (11), a plunger (30), a liquid chamber (50) into which the plunger (30) is inserted, a plunger driving mechanism that moves the plunger (30) forward and backward, and a plunger position determining mechanism that specifies a position of a tip portion of the plunger (30). The liquid material is discharged in a droplet state by applying inertial force to the liquid material with forward movement of the plunger (30) in a state where the tip portion of the plunger (30) and an inner wall of the liquid chamber (50) are not contacted with each other. A minute droplet is formed by moving the plunger (30) forward to push the liquid material out of the discharge opening (11) in an amount necessary to form a droplet of a desired size.

A method, a printing system and a printing bridge. The printing bridge is configured to accommodate in a precise manner a jet print head. The jet print head includes first jet nozzles for injecting a first type jettable substance to form a first pattern onto the surface of a object, and a second jet nozzles for injecting a second type of jettable substance to form a first pattern onto the surface of a object. The first type jettable substance is utilized for printing a solder mask pattern and the second type jettable substance is utilized for printing a legend pattern.

A flexible transparent electrode and a method for manufacturing the same are provided. The flexible transparent electrode includes: a substrate made of a flexible and transparent material, and a metal pattern which is formed on the substrate in a mesh form and has an electroconductive metal material, wherein the metal pattern is formed by being patterned on an upper side of the substrate using an electrohydrodynamic jet printing method and being sintered, and the electrohydrodynamic jet printing method is a method of forming a metal pattern on the upper side of the substrate after applying AC voltage of a predetermined power to the substrate and an injection nozzle of an electrohydrodynamic jet printing device. The flexible transparent electrode and the method for manufacturing the same can manufacture transparent electrode of a flexible structure through more simplified processes and reduce manufacturing costs.

The invention discloses a multifunctional processing device for a circuit board, and belongs to the technical field of circuit board processing. The multifunctional processing device comprises a mounting frame, a moving assembly and a processing assembly. The moving assembly comprises a movable part and a fixed part. The fixed part is arranged on the movable part; the processing assembly is erected at the top of the mounting frame. The processing assembly comprises a circuit board drilling part, a circuit board polishing part, a circuit board coating part and a circuit board drying part whichare sequentially arranged at the top of the mounting frame; the conveying circuit board grinding part is arranged beside the circuit board drilling part, the circuit board coating part is arranged beside the circuit board grinding part, and the circuit board drying part is arranged beside the circuit board coating part. The rotating gear rotates to drive the two fixed toothed plates to rotate oppositely or rotate in an opposing way, the two fixed toothed plates move to drive the two fixed plates to move to fix the circuit board at the top of the movable plate, and the situation that the position of the circuit board deviates in processing and consequently the processing ccuracy of the circuit board is affected is prevented.

The invention relates to an apparatus for the coating of a substrate, in particular of a circuit board, with a material application device for applying a coating material and with a gas supplying device for the supply of a gaseous medium, the material application device having an inner tubular element, the gas supply device having an outer tubular element which is arranged coaxially to the inner tubular element and surrounds the latter, so as to form between the outer and the inner tubular element a gas supply duct which has an annular orifice at one end, the supply duct being configured so that the gaseous medium flows out, parallel to the coating material, through the annular orifice, in order, when it impinges on the substrate, to displace the applied coating material and thereby distribute it over the area. The apparatus is distinguished in that the material application device has a jet valve which, in a first operating mode, carries out a jetted supply of material into the inner tubular element.

A painting machine having a spray head for painting an object, a pump for conveying paint from a paint container via a feed line to the spray head and back via a return line to the paint container, the feed and return lines connected to a solvent container with a solvent for flush cleaning the painting machine. The feed and return lines are connected to a disposal container for disposing of paint and solvent residues, and at their respective container-side end to a first and second controllable multiway valve for switching the feed and return lines to the paint container, solvent container or disposal container. The painting machine has a control device for controlling the multiway valve such that execution of the consecutive operations of disposal of the paint, filling with solvent, flushing out the painting machine, disposing of the solvent, refilling with paint and also further conveyance of the paint are automated.