Abstract: Disclosed is an automatic alignment method of a high-pressure gas container in which a high-pressure gas container is loaded on a lift of a cabinet so as to supply a gas from a fabrication (FAB) process facility of a semiconductor to a wafer production line, and then, the high-pressure gas container loaded on the lift is raised, and an end cap of the high-pressure gas container and the center of a connector holder of a gas pipe are automatically aligned.

Abstract: A test apparatus for devices having fine pitches, includes a loading picker provided on one side of a loading part so as to sequentially adsorb devices to be tested, thereby putting the adsorbed devices on the upper surface of a vacuum chuck, a device alignment part, which is provided at an upper portion of a loading zone for aligning the devices, tester for testing a performance of the devices for a set time as the vacuum chuck positioned in the test position moves and comes into electrical contact with bumps of respective devices, and an unloading picker, which is provided at one side of an unloading zone so as to adsorb tested devices from the vacuum chuck, sorts the tested devices into good products and bad products, and unloads the tested devices as sorted on a tray of an unloading part.

Abstract: Disclosed is a method for automatically replacing high-pressure gas barrels, in which when loading a high-pressure gas barrel is loaded on the lift of a cabinet so as to supply gas to the wafer production line in the semiconductor fabrication FAB process facility, at the time point of replacement of the high-pressure gas barrel, a used high-pressure gas barrel is separated from a connector holder and then a new high-pressure gas barrel is connected to the connector holder.

Abstract: A method for automatically opening or closing a gas barrel valve, includes: loading and aligning a gas barrel in a cabinet; separating an end cap from the gas barrel; screw-coupling a connector holder to a gas spray nozzle, from which the ends cap has been removed; winding a spring around a first shaft by enabling forward rotation of the first shaft while suppressing reverse rotation of the first shaft, which is installed in a valve handle holder so as to idle; opening a valve by enabling reverse rotation of a valve handle of the gas barrel while preventing forward rotation of the valve handle holder; and automatically closing the valve at the time of replacement of the gas barrel or when a gas leak is detected.

Abstract: A method for aligning a device includes: loading devices sequentially on an upper surface of a base plate having vacuum holes; suctioning the loaded device with vacuum pressure that allows minute movement of the loaded device, as the vacuum pressure is applied while the device is loaded on the base plate; moving an alignment vision assembly positioned above the base plate to the upper portion of the device to be aligned and then lowering the alignment vision assembly; checking a position of the device with a vision means through a through hole and an opening in a state, in which an alignment block surrounds the device, so as to inform a controller of the coordinates of the device; and aligning the device by finely moving the base plate in X-Y-? directions according to the coordinates so that the device is guided to two surfaces of the opening.

Abstract: A test apparatus for devices having fine pitches, includes a loading picker provided on one side of a loading part so as to sequentially adsorb devices to be tested, thereby putting the adsorbed devices on the upper surface of a vacuum chuck, a device alignment part, which is provided at an upper portion of a loading zone for aligning the devices, tester for testing a performance of the devices for a set time as the vacuum chuck positioned in the test position moves and comes into electrical contact with bumps of respective devices, and an unloading picker, which is provided at one side of an unloading zone so as to adsorb tested devices from the vacuum chuck, sorts the tested devices into good products and bad products, and unloads the tested devices as sorted on a tray of an unloading part.

Abstract: An apparatus for aligning a device having a fine pitch includes: a base plate, which has vacuum holes respectively formed at seating points for devices and suctions the devices with the vacuum pressure that allows minute movement as the vacuum pressure is applied in a state in which the devices are loaded; a jig plate, which is fixedly installed so as to be positioned on the upper portion of the base plate and has openings, in which the devices are received, in the same number as the number of the devices loaded on the base plate; and a base plate position adjusting means for finely moving the positions of the devices loaded on the base plate in X-Y-? directions so as to position the devices in the openings (formed in the jig plate.

Abstract: The present disclosure relates to a speaker and a magnetic circuit system thereof. The speaker includes a housing and at least one magnetic circuit system and at least one vibration system arranged in the housing. The at least one vibration system includes at least one layer of drive circuit configured to generate mechanical motion under the action of a magnetic field of the at least one magnetic circuit system, and a diaphragm driven by the at least one layer of drive circuit. The at least one layer of driving circuit is mounted to the diaphragm and has a planar shape. Since the driving circuit of the vibration system has a planar shape, the thickness of the speaker of the present disclosure can be effectively reduced.

Abstract: Disclosed is a high-pressure gas cylinder automatic replacement device, including: a holder fixedly provided on a main plate to be positioned at one side of a connector holder of a high-pressure gas cylinder connection unit; a movable member rotatably provided at the holder; a two-stage actuator provided at the holder such that rods thereof are respectively connected to the movable member and a bracket fixed to the main plate; a docking actuator enabling the movable member to move from the holder towards the connector holder side or vice versa; a gasket removal cartridge provided at the movable member to automatically remove used gaskets from the connector holder and to accommodate the same in turn; and a gasket insertion cartridge provided at the movable member positioned at the upper portion of the gasket removal cartridge to insert a new gasket accommodated therein into the connector holder.

Abstract: Disclosed is a device for automatically opening or closing a gas barrel valve. The device includes: a main plate installed so as to move up and down and to align the position of a gas barrel loaded in a cabinet; a gas barrel connecting portion installed on the lower portion of the main plate, separating an end cap from the gas barrel and storing the end cap, and then automatically screw-coupling a connector holder to a gas spray nozzle; a valve handle unit installed on the main plate so as to rotate around a first shaft and rotating a valve handle of the gas barrel such that the valve handle is locked or unlocked, while encompassing the valve handle of the gas barrel; and a valve handle opening or closing unit installed on the upper portion of the main plate so as to operate the valve handle unit in a direction, in which a valve of the gas barrel is opened.

Abstract: Disclosed is system for automatically replacing a high-pressure gas tank, including: a high-pressure gas tank lift installed in a cabinet which is able to be elevated and including a die to load a high-pressure gas tank thereon; a high-pressure gas tank clamp clamping the high-pressure gas tank loaded on the die of the high-pressure gas tank lift to align the position of the high-pressure gas tank; a high-pressure gas tank connection unit removing an end cap from the high-pressure gas tank elevated by the high-pressure gas tank lift to automatically connect a connector holder to a gas injection nozzle and control the flow of gas; and control unit installed in the cabinet to control operation of the high-pressure gas tank connection unit, the high-pressure gas tank lift, and the high-pressure gas tank clamp.

Abstract: A method for automatically opening or closing a gas barrel valve, includes: loading and aligning a gas barrel in a cabinet; separating an end cap from the gas barrel; screw-coupling a connector holder to a gas spray nozzle, from which the ends cap has been removed; winding a spring around a first shaft by enabling forward rotation of the first shaft while suppressing reverse rotation of the first shaft, which is installed in a valve handle holder so as to idle; opening a valve by enabling reverse rotation of a valve handle of the gas barrel while preventing forward rotation of the valve handle holder; and automatically closing the valve at the time of replacement of the gas barrel or when a gas leak is detected.

Abstract: Disclosed is system for automatically replacing a high-pressure gas tank, including: a high-pressure gas tank lift installed in a cabinet which is able to be elevated and including a die to load a high-pressure gas tank thereon; a high-pressure gas tank clamp clamping the high-pressure gas tank loaded on the die of the high-pressure gas tank lift to align the position of the high-pressure gas tank; a high-pressure gas tank connection unit removing an end cap from the high-pressure gas tank elevated by the high-pressure gas tank lift to automatically connect a connector holder to a gas injection nozzle and control the flow of gas; and control unit installed in the cabinet to control operation of the high-pressure gas tank connection unit, the high-pressure gas tank lift, and the high-pressure gas tank clamp.

Abstract: Disclosed is an automatic alignment method of a high-pressure gas container in which a high-pressure gas container is loaded on a lift of a cabinet so as to supply a gas from a fabrication (FAB) process facility of a semiconductor to a wafer production line, and then, the high-pressure gas container loaded on the lift is raised, and an end cap of the high-pressure gas container and the center of a connector holder of a gas pipe are automatically aligned.

Abstract: Disclosed is a method for automatically replacing high-pressure gas barrels, in which when loading a high-pressure gas barrel is loaded on the lift of a cabinet so as to supply gas to the wafer production line in the semiconductor fabrication FAB process facility, at the time point of replacement of the high-pressure gas barrel, a used high-pressure gas barrel is separated from a connector holder and then a new high-pressure gas barrel is connected to the connector holder.

Abstract: Disclosed is a device for automatically opening or closing a gas barrel valve. The device includes: a main plate installed so as to move up and down and to align the position of a gas barrel loaded in a cabinet; a gas barrel connecting portion installed on the lower portion of the main plate, separating an end cap from the gas barrel and storing the end cap, and then automatically screw-coupling a connector holder to a gas spray nozzle; a valve handle unit installed on the main plate so as to rotate around a first shaft and rotating a valve handle of the gas barrel such that the valve handle is locked or unlocked, while encompassing the valve handle of the gas barrel; and a valve handle opening or closing unit installed on the upper portion of the main plate so as to operate the valve handle unit in a direction, in which a valve of the gas barrel is opened.

Abstract: Disclosed is a high-pressure gas cylinder automatic replacement device, including: a holder fixedly provided on a main plate to be positioned at one side of a connector holder of a high-pressure gas cylinder connection unit; a movable member rotatably provided at the holder; a two-stage actuator provided at the holder such that rods thereof are respectively connected to the movable member and a bracket fixed to the main plate; a docking actuator enabling the movable member to move from the holder towards the connector holder side or vice versa; a gasket removal cartridge provided at the movable member to automatically remove used gaskets from the connector holder and to accommodate the same in turn; and a gasket insertion cartridge provided at the movable member positioned at the upper portion of the gasket removal cartridge to insert a new gasket accommodated therein into the connector holder.

Abstract: A differential carrier case with an inserted pipe for high pressure casting may include a mold core into which a first end of a pipe is inserted, a mold core pin fixed to the mold core to fix the mold core and the first end of the pipe, a drive core pin inserted into a second end of the pipe, and a thick portion surrounding an outer portion of the pipe.

Abstract: A differential carrier case with an inserted pipe for high pressure casting may include a mold core into which a first end of a pipe is inserted, a mold core pin fixed to the mold core to fix the mold core and the first end of the pipe, a drive core pin inserted into a second end of the pipe, and a thick portion surrounding an outer portion of the pipe.

Abstract: A magnetic separator useful for treating chips in a machine tool is disclosed, which comprises a separating cylinder, a plurality of magnetic plates arranged at an outer periphery of the cylinder and spaced apart each other, an inlet for a fluid suspension at a middle part of the cylinder, outlets for a separated fluid at one end and for the suspended matter, such as machined chips, at the other end of the cylinder, and a screw conveyor inserted into the cylinder in such a way that the screw conveyor is contacted at its peripheral edge with an inner wall of the cylinder. The magnetic plates are arranged in a circle around the cylinder with the polarity of the adjacent magnetic plates arranged in a special sequence for generating a maximum magnetic flux toward the axial center of the cylinder. Also, the magnetic plates extend from the inlet near the middle of the cylinder to both outlets at opposite ends of the cylinder for achieving a strong magnetization of the chips suspended in the fluid.