Abstract: Disclosed is a printing apparatus for a 3D surface, which performs printing by ejecting a droplet onto a 3D surface and controlling an electric field on an impact path of the droplet, the printing apparatus including: a ejecting environment information provider configured to provide ejecting environment information between a nozzle and an impact point; and a controller configured to predict a result of printing on an actual substrate by accumulating previous printing results according to printing conditions and the ejecting environment information into a database, and perform the printing on the 3D surface while changing the printing conditions provided by the database based on the ejecting environment information provided by the ejecting environment information provider.

Abstract: The present disclosure relates to a method for aligning a plurality of nozzle tips, the method comprising: a first nozzle aligning step of setting a reference position of a first nozzle tip for discharging ink within a working area through an image of a first camera observing the working area above a substrate and a second camera observing the working area in an inclined direction; a second nozzle aligning step of setting a reference position of a second nozzle tip for discharging ink within the working area through the image of the first camera and the second camera; a step of detecting a position of a substrate based on the image of the second camera; and a printing preparation step of positioning the first nozzle tip and the second nozzle tip to a printing position on the substrate.

Abstract: The present disclosure relates to an additive manufacturing system and additive manufacturing method comprising a printing platform that sprays a droplet and that deposits the droplet on a substrate or a build platform by attractive-force control of an electric field to form at least one layer of a laminated body in a layer by layer method; a flattening unit that flattens the laminated body formed by the printing platform to a preset height; a curing unit that cures the laminated body flattened by the flattening unit; and a controller that controls the printing platform, the flattening unit and the curing unit, thereby significantly increasing the manufacturing speed while improving the quality of additive manufacturing.

Abstract: Disclosed are an inkjet printhead and a method of manufacturing the same, the inkjet printhead including: a first layer including an inlet formed to penetrate a substrate and introduce ink therein, and a plurality of membranes; a second layer disposed beneath the first layer, and including a manifold formed to penetrate a substrate and communicate with the inlet or recessed on a top of the substrate, and a plurality of nozzle channels formed to penetrate the substrate below the membrane and allow the ink transferred from the manifold to flow therein; a third layer disposed beneath the second layer, and including a plurality of nozzles formed in a substrate and communicating the plurality of nozzle channels; a piezoelectric actuator formed on the first layer formed with the membrane, and including a lower first electrode, a piezoelectric body on the first electrode, and a second electrode on the piezoelectric body; a first voltage controller configured to oscillate the membrane by applying a pulse voltage to t

Abstract: The present disclosure relates to a pick-and-place apparatus of micro LED chip for chip-repairing of micro LED display, including a nozzle having a capillary form and having a nozzle tip that is smaller than a top size area of the micro LED chip; a pressure adjustment part that applies negative pressure inside the nozzle to adsorb the micro LED chip to the nozzle tip and applies positive pressure inside the nozzle or removes the negative pressure inside the nozzle to mount the micro LED chip adsorbed to the nozzle tip onto a repair pixel; an imaging part that monitors a position and posture of the micro LED chip adsorbed to the nozzle tip in real time; a moving part that moves the nozzle; and a control part that receives image information from the imaging part, and mounts the micro LED chip onto a repair pixel while controlling the pressure adjustment part and the moving part.

Abstract: The present disclosure relates to a printing apparatus with a plurality of nozzle heads and method for aligning a plurality of nozzle tips. The printing apparatus with a plurality of nozzle heads according to the present disclosure includes a first nozzle head having a first nozzle tip for discharging ink and a first moving part for moving the first nozzle tip, and disposed at one side of a working area on a substrate; a second nozzle head having a second nozzle tip for discharging ink and a second moving part for moving the second nozzle tip, and disposed at the other side of the working area on the substrate; and a first camera disposed above the substrate to observe the first nozzle tip and the second nozzle tip at the same time.

Abstract: The present disclosure relates to a printing apparatus, and the printing apparatus according to the present disclosure includes an optical unit for expanding and displaying a hitting point of ink, from above a substrate; and a nozzle unit for ejecting the ink, wherein the nozzle unit includes a nozzle body that is obliquely disposed with respect to the substrate; and a nozzle that is coupled to the nozzle body, and has a flow path from which the ink is ejected, and has a tip that is bended towards the substrate.

Abstract: The present disclosure relates to an induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode, and the induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode according to the present disclosure includes a nozzle for discharging supplied solution towards an opposite substrate through a nozzle hole formed at one end; a main electrode coated with an insulator and interpolated inside the nozzle, thus not contacting the solution inside the nozzle but separated from the solution; the induced auxiliary electrode made of a conductive material and formed at an outer surface of the nozzle; and a voltage supply for applying voltage to the main electrode.

Abstract: Disclosed are an underfill method and apparatus for a semiconductor package, the underfill method includes loading a substrate; charging a filler to be filled in between the substrate and a device; applying the filler to the substrate; and subjecting the applied filler to an electric field.

Abstract: The present disclosure relates to an induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode, and the induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode according to the present disclosure includes a nozzle for discharging supplied solution towards an opposite substrate through a nozzle hole formed at one end; a main electrode coated with an insulator and interpolated inside the nozzle, thus not contacting the solution inside the nozzle but separated from the solution; the induced auxiliary electrode made of a conductive material and formed at an outer surface of the nozzle; and a voltage supply for applying voltage to the main electrode.

Abstract: Disclosed is an electrohydrodynamic printing apparatus including: a nozzle configured to discharge liquid toward a substrate; a voltage applier configured to form an electric field between the nozzle and the substrate; and a laser beam emitter configured to emit a laser beam toward a position to which liquid is discharged on the substrate. Thus, it is possible to accurately and stably form a microscale deposition structure.

Abstract: Disclosed are an underfill method and apparatus for a semiconductor package, the underfill method includes loading a substrate; charging a filler to be filled in between the substrate and a device; applying the filler to the substrate; and subjecting the applied filler to an electric field.

Abstract: Disclosed is an induced electrohydrodynamic (EHD) jet printing apparatus including: a nozzle configured to discharge a fed solution to an opposite substrate; a main electrode contactlessly isolated from the solution inside the nozzle by an insulator; and a voltage supplier configured to apply voltage to the main electrode.

Abstract: Disclosed is an induced electrohydrodynamic (EHD) jet printing apparatus including: a nozzle configured to discharge a fed solution to an opposite substrate; a main electrode contactlessly isolated from the solution inside the nozzle by an insulator; and a voltage supplier configured to apply voltage to the main electrode.

Abstract: Disclosed is a printing apparatus. In an exemplary embodiment, the printing apparatus includes a nozzle for ejecting ink, a driving device for moving the nozzle, an imaging device for capturing an image displaying an ink printing process, and an automatic positioning controller for automatically setting a position of the nozzle based on the image captured by the imaging device while moving the nozzle by means of the driving device.

Abstract: Disclosed are a cartridge nozzle assembly and an apparatus for injecting ink including the cartridge nozzle assembly. In the ink injecting apparatus for forming a pattern by adhering the ink injected from a nozzle onto a substrate, the ink injecting apparatus includes a cartridge nozzle assembly, in a cartridge type, including a chamber sealingly accommodating the ink, and the nozzle for discharging the ink accommodated in the chamber; and a cartridge nozzle fixing member for replaceably fixing the cartridge nozzle assembly.

Abstract: Disclosed is an electrohydrodynamic printing apparatus including: a nozzle configured to discharge liquid toward a substrate; a voltage applier configured to form an electric field between the nozzle and the substrate; and a laser beam emitter configured to emit a laser beam toward a position to which liquid is discharged on the substrate. Thus, it is possible to accurately and stably form a microscale deposition structure.

Abstract: Disclosed is a printing apparatus. In an exemplary embodiment, the printing apparatus includes a nozzle for ejecting ink, a driving device for moving the nozzle, an imaging device for capturing an image displaying an ink printing process, and an automatic positioning controller for automatically setting a position of the nozzle based on the image captured by the imaging device while moving the nozzle by means of the driving device.

Abstract: Disclosed are a cartridge nozzle assembly and an apparatus for injecting ink including the cartridge nozzle assembly. In the ink injecting apparatus for forming a pattern by adhering the ink injected from a nozzle onto a substrate, the ink injecting apparatus includes a cartridge nozzle assembly, in a cartridge type, including a chamber sealingly accommodating the ink, and the nozzle for discharging the ink accommodated in the chamber; and a cartridge nozzle fixing member for replaceably fixing the cartridge nozzle assembly.

Abstract: The invention provides a printer comprising an exchange station by which a printer module of a multifunction 3D printer can be attached and detached. The printer module is electromagnetically or mechanically attached to the exchange station to perform a printing operation. The multifunction 3D printer supports the printer module steadily and stably.