Abstract: A monolithic ink-jet printhead, and a method of manufacturing the same, includes a substrate having an ink chamber, an ink channel, and a manifold, a nozzle plate formed on the substrate, a nozzle, a heater, and a conductor. The ink chamber includes sidewalls formed to a predetermined depth from the front surface of the substrate for defining side surfaces of the ink chamber and a bottom wall formed parallel to the front surface of the substrate at the predetermined depth from the front surface of the substrate for defining a bottom surface of the ink chamber. The nozzle plate includes a plurality of passivation layers, a heat dissipating layer being stacked on the passivation layers, and the nozzle for ejecting ink out of the printhead. The heater is positioned above the ink chamber and heats ink in the ink chamber and the conductor delivers a current to the heater.

Abstract: A monolithic ink-jet printhead includes a substrate having an ink chamber, a manifold, and an ink channel in flow communication, a nozzle plate including a plurality of passivation layers stacked on the substrate and a heat dissipating layer stacked on the passivation layers, a nozzle for ejecting ink penetrating the nozzle plate, a heater provided between adjacent passivation layers above the ink chamber, and a conductor between adjacent passivation layers, the conductor being electrically connected to the heater, wherein the heat dissipating layer is made of a thermally conductive metal for dissipating heat from the heater, the lower part of the nozzle is formed by penetrating the plurality of passivation layers, and the upper part of the nozzle is formed by penetrating the heat dissipating layer in a tapered shape in which a cross-sectional area thereof decreases gradually toward an exit thereof.

Abstract: A monolithic ink-jet printhead includes a substrate which has an ink chamber to be supplied with ink, a manifold for supplying ink to the ink chamber, and an ink channel for providing communication between the ink chamber and the manifold, a nozzle plate including a plurality of passivation layers sequentially stacked on the substrate, a metal layer formed on the passivation layers, and a nozzle, through which ink is ejected from the ink chamber, that penetrates the nozzle plate, a heater provided between adjacent passivation layers, the heater being located above the ink chamber for heating ink within the ink chamber, a conductor provided between adjacent passivation layers, the conductor being electrically connected to the heater for applying a current to the heater, and a hydrophobic coating layer formed exclusively on an outer surface of the metal layer.

Abstract: A monolithic ink-jet printhead includes a substrate which has an ink chamber to be supplied with ink, a manifold for supplying ink to the ink chamber, and an ink channel for providing communication between the ink chamber and the manifold, a nozzle plate including a plurality of passivation layers sequentially stacked on the substrate, a metal layer formed on the passivation layers, and a nozzle, through which ink is ejected from the ink chamber, that penetrates the nozzle plate, a heater provided between adjacent passivation layers, the heater being located above the ink chamber for heating ink within the ink chamber, a conductor provided between adjacent passivation layers, the conductor being electrically connected to the heater for applying a current to the heater, and a hydrophobic coating layer formed exclusively on an outer surface of the metal layer.

Abstract: In an ink-jet printhead and a method for manufacturing the same, the ink-jet printhead includes a substrate, an ink chamber to be filled with ink formed on a front surface of the substrate, a manifold for supplying ink to the ink chamber formed on a rear surface of the substrate, and an ink passage in flow communication with the ink chamber and the manifold formed parallel to the front surface of the substrate; a nozzle plate including a plurality of passivation layers formed of an insulating material on the front surface of the substrate, a heat dissipating layer formed of a metallic material, and a nozzle in flow communication with the ink chamber; and a heater and a conductor, the heater being positioned on the ink chamber and heating ink in the ink chamber, and the conductor for applying a current to the heater.

Abstract: In an ink-jet printhead and a method for manufacturing the same, the ink-jet printhead includes a substrate, an ink chamber to be filled with ink formed on a front surface of the substrate, a manifold for supplying ink to the ink chamber formed on a rear surface of the substrate, and an ink passage in flow communication with the ink chamber and the manifold formed parallel to the front surface of the substrate; a nozzle plate including a plurality of passivation layers formed of an insulating material on the front surface of the substrate, a heat dissipating layer formed of a metallic material, and a nozzle in flow communication with the ink chamber; and a heater and a conductor, the heater being positioned on the ink chamber and heating ink in the ink chamber, and the conductor for applying a current to the heater.

Abstract: A monolithic ink-jet printhead includes a substrate having an ink chamber, a manifold, and an ink channel in flow communication, a nozzle plate including a plurality of passivation layers stacked on the substrate and a heat dissipating layer stacked on the passivation layers, a nozzle for ejecting ink penetrating the nozzle plate, a heater provided between adjacent passivation layers above the ink chamber, and a conductor between adjacent passivation layers, the conductor being electrically connected to the heater, wherein the heat dissipating layer is made of a thermally conductive metal for dissipating heat from the heater, the lower part of the nozzle is formed by penetrating the plurality of passivation layers, and the upper part of the nozzle is formed by penetrating the heat dissipating layer in a tapered shape in which a cross-sectional area thereof decreases gradually toward an exit thereof.

Abstract: A monolithic ink-jet printhead includes a substrate having an ink chamber, a manifold, and an ink channel in flow communication, a nozzle plate including a plurality of passivation layers stacked on the substrate and a heat dissipating layer stacked on the passivation layers, a nozzle for ejecting ink penetrating the nozzle plate, a heater provided between adjacent passivation layers above the ink chamber, and a conductor between adjacent passivation layers, the conductor being electrically connected to the heater, wherein the heat dissipating layer is made of a thermally conductive metal for dissipating heat from the heater, the lower part of the nozzle is formed by penetrating the plurality of passivation layers, and the upper part of the nozzle is formed by penetrating the heat dissipating layer in a tapered shape in which a cross-sectional area thereof decreases gradually toward an exit thereof.

Abstract: A micro-mirror device for an image display apparatus which can change the travel path of incident light by pivoting a mirror, which corresponds to a pixel and can increase optical efficiency by pivoting the mirror in the direction of the sides of the mirror. The micro-mirror device for an image display apparatus includes a substrate, a landing pad provided on the substrate, and a pair of base electrodes provided on opposite sides of the landing pad. A pair of first posts protrude from the upper surface of the landing pad, and are isolated from each other by a predetermined interval. A girder, supported by the pair of first posts, pivots toward the sides of the base electrodes due to an electrostatic attraction. A second post protrudes from the upper surface of the girder. A mirror, which is supported by the second post, reflects incident light, and receives power via the landing pad.

Abstract: An ink-jet printhead, and a method of manufacturing the same, includes a substrate, an ink chamber, a manifold, and an ink channel formed between the ink chamber and the manifold to provide flow communication between the ink chamber and the manifold, a substantially flat nozzle plate formed on the upper surface of the substrate, the nozzle plate including a plurality of passivation layers, a heat dissipation layer disposed on the plurality of passivation layers, the heat dissipation layer formed of a thermally conductive material and including a first thermally conductive layer formed on the plurality of passivation layers and a second thermally conductive layer formed on the first thermally conductive layer, and a nozzle extending through the nozzle plate in flow communication with the ink chamber, and a heater and a conductor, the heater heating ink filled in the ink chamber and the conductor applying current to the heater.

Abstract: A monolithic ink-jet printhead, and a method of manufacturing the same, includes a substrate having an ink chamber, an ink channel, and a manifold, a nozzle plate formed on the substrate, a nozzle, a heater, and a conductor. The ink chamber includes sidewalls formed to a predetermined depth from the front surface of the substrate for defining side surfaces of the ink chamber and a bottom wall formed parallel to the front surface of the substrate at the predetermined depth from the front surface of the substrate for defining a bottom surface of the ink chamber. The nozzle plate includes a plurality of passivation layers, a heat dissipating layer being stacked on the passivation layers, and the nozzle for ejecting ink out of the printhead. The heater is positioned above the ink chamber and heats ink in the ink chamber and the conductor delivers a current to the heater.

Abstract: In an ink-jet printhead and a method for manufacturing the same, the ink-jet printhead includes a substrate, an ink chamber to be filled with ink formed on a front surface of the substrate, a manifold for supplying ink to the ink chamber formed on a rear surface of the substrate, and an ink passage in flow communication with the ink chamber and the manifold formed parallel to the front surface of the substrate; a nozzle plate including a plurality of passivation layers formed of an insulating material on the front surface of the substrate, a heat dissipating layer formed of a metallic material, and a nozzle in flow communication with the ink chamber; and a heater and a conductor, the heater being positioned on the ink chamber and heating ink in the ink chamber, and the conductor for applying a current to the heater.

Abstract: In an ink-jet printhead and a method for manufacturing the same, the ink-jet printhead includes a substrate, an ink chamber to be filled with ink to be ejected formed on an upper surface of the substrate, a restrictor, which is a path through which ink is supplied from an ink reservoir to the ink chamber, perforating a bottom surface of the substrate and a bottom surface of the ink chamber, a nozzle plate, which is stacked on the upper surface of the substrate and forms an upper wall of the ink chamber, a nozzle perforating the nozzle plate at a position corresponding to a center of the ink chamber, a heater formed in the nozzle plate to surround the nozzle, and a conductor for applying a current to the heater.

Abstract: A monolithic ink-jet printhead includes a substrate which has an ink chamber to be supplied with ink, a manifold for supplying ink to the ink chamber, and an ink channel for providing communication between the ink chamber and the manifold, a nozzle plate including a plurality of passivation layers sequentially stacked on the substrate, a metal layer formed on the passivation layers, and a nozzle, through which ink is ejected from the ink chamber, that penetrates the nozzle plate, a heater provided between adjacent passivation layers, the heater being located above the ink chamber for heating ink within the ink chamber, a conductor provided between adjacent passivation layers, the conductor being electrically connected to the heater for applying a current to the heater, and a hydrophobic coating layer formed exclusively on an outer surface of the metal layer.

Abstract: A monolithic ink-jet printhead includes a substrate having an ink chamber, a manifold, and an ink channel in flow communication, a nozzle plate including a plurality of passivation layers stacked on the substrate and a heat dissipating layer stacked on the passivation layers, a nozzle for ejecting ink penetrating the nozzle plate, a heater provided between adjacent passivation layers above the ink chamber, and a conductor between adjacent passivation layers, the conductor being electrically connected to the heater, wherein the heat dissipating layer is made of a thermally conductive metal for dissipating heat from the heater, the lower part of the nozzle is formed by penetrating the plurality of passivation layers, and the upper part of the nozzle is formed by penetrating the heat dissipating layer in a tapered shape in which a cross-sectional area thereof decreases gradually toward an exit thereof.

Abstract: A magneto-optical head for magneto-optical writing and reading systems having an improved construction for a field modulating coil and a miniature objective lens, and a method of manufacturing the magneto-optical head.

Abstract: A micro-mirror device for an image display apparatus which can change the travel path of incident light by pivoting a mirror, which corresponds to a pixel and can increase optical efficiency by pivoting the mirror in the direction of the sides of the mirror. The micro-mirror device for an image display apparatus includes a substrate, a landing pad provided on the substrate, and a pair of base electrodes provided on opposite sides of the landing pad. A pair of first posts protrude from the upper surface of the landing pad, and are isolated from each other by a predetermined interval. A girder, supported by the pair of first posts, pivots toward the sides of the base electrodes due to an electrostatic attraction. A second post protrudes from the upper surface of the girder. A mirror, which is supported by the second post, reflects incident light, and receives power via the landing pad.

Abstract: A deformable mirror device and manufacturing method therefore. The method includes the steps of forming an electrode layer on a substrate in a predetermined pattern, forming a thick film on the upper surfaces of the substrate and the electrode layer, forming a support plate on the upper surface of the thick film, and partially etching the thick film to form at least one through hole. The method further includes separating the support plate into single portions, forming a post on one side of the inner surface of the through hole, forming a reflecting plate on the upper surface of the support plate, and removing the thick film.

Abstract: A deformable mirror device and manufacturing method therefor. The method includes the steps of forming an electrode layer on a substrate in a predetermined pattern, forming a thick film on the upper surfaces of the substrate and the electrode layer, forming a support plate on the upper surface of the thick film, and partially etching the thick film to form at least one through hole. The method further includes separating the support plate into single portions, forming a post on one side of the inner surface of the through hole, forming a reflecting plate on the upper surface of the support plate, and removing the thick film.