Abstract: Disclosed is a method of growing a single crystal silicon ingot, including dipping a seed in a silicon melt, and sequentially growing a neck, a shoulder, and a body from the seed by pulling the seed, growing the neck includes growing a first neck part configured to have a cross-sectional area decreased from the seed, and growing a second neck part configured to have a constant cross-sectional area from the first neck part, and, in growing the first neck part, the seed is pulled at a speed equal to or less than 2.0 mm/min.

Abstract: An embodiment provides a silicon single crystal growth method comprising the steps of: (a) allowing the shoulder of a single crystal to grow vertically; (b) allowing the shoulder to grow horizontally after the vertical growth; and (c) allowing the shoulder to grow in a downward convex shape after the horizontal growth of the shoulder, wherein the shoulder grows at a preset rate on the basis of the final diameter of the shoulder and the shoulder growth height according to steps (b) and (c).

Abstract: An embodiment provides a silicon single crystal growth method comprising the steps of: (a) allowing the shoulder of a single crystal to grow vertically; (b) allowing the shoulder to grow horizontally after the vertical growth; and (c) allowing the shoulder to grow in a downward convex shape after the horizontal growth of the shoulder, wherein the shoulder grows at a preset rate on the basis of the final diameter of the shoulder and the shoulder growth height according to steps (b) and (c).

Abstract: An embodiment provides a method for manufacturing a silicon single crystal ingot by using a silicon single crystal growing apparatus comprising: a chamber; a crucible arranged inside the chamber and accommodating a molten silicon solution; a heater arranged outside the crucible so as to heat the crucible; a heat shielding part arranged inside the chamber; and a pulling part for pulling a single crystal growing from the molten silicon solution, wherein the method can comprise a step of respectively growing a neck part, a shoulder part and a body part.

Abstract: An embodiment provides a method for manufacturing a silicon single crystal ingot by using a silicon single crystal growing apparatus comprising: a chamber; a crucible arranged inside the chamber and accommodating a molten silicon solution; a heater arranged outside the crucible so as to heat the crucible; a heat shielding part arranged inside the chamber; and a pulling part for pulling a single crystal growing from the molten silicon solution, wherein the method can comprise a step of respectively growing a neck part, a shoulder part and a body part.

Abstract: The present invention relates to a seed chuck accommodating seed crystal so as to grow ingots in molten silicon, comprising: a neck cover for blocking thermal emission in the upward direction of the molten silicon; and a fixing part arranged on a bottom surface of the neck cover and accommodating the seed crystal, wherein the neck cover comprises: a top surface connected to a lifting cable; the bottom surface; and a circumferential surface connecting the top surface and the bottom surface, the circumferential surface is formed with an inclination angle with respect to the bottom surface, and a measurement part for measuring the molten silicon is opened in the neck cover such that the neck cover is positioned on the hole of an upper insulator so as to minimize heat loss through the hole of the upper insulator during a melting step and does not interfere in the temperature measurement of the molten silicon, thereby helping the temperature measurement of the molten silicon and increasing the reliability of molte

Abstract: An electronic device is provided. The electronic device includes a case member that includes an opening, an electric component provided on the case member, and a circuit board connected to the electric component via the opening, wherein a portion of the circuit board contacts the case member to seal the opening.

Abstract: A system and method for controlling engine revolutions for a hybrid construction machine, including an engine, a hydraulic pump which is driven by the engine to drive a hydraulic actuator with discharged hydraulic fluid, a motor-generator which is driven by the engine to generate electricity and to drive the hydraulic pump as a motor supplementing the engine, an energy storage device which is charged with electric energy generated by the motor-generator and which supplies the electric energy for motor operation of the motor-generator, a torque detection unit for detecting an output torque of the hydraulic pump that is required to drive the hydraulic actuator, and a hybrid control unit for controlling the motor operation of the motor-generator to supplement the engine output if the change of the output torque of the hydraulic pump exceeds a predetermined level and it is determined that an engine revolution drop will occur.

Abstract: One embodiment comprises: a crucible for holding a silicon melt; a heat shield for surrounding monocrystalline silicon which is grown from the silicon melt; a thermal image capturing portion for capturing a shoulder, which is grown by means of a shouldering process, and obtaining thermal image data as a result of the image capturing; and a control portion for calculating the weight of the shoulder by using the thermal image data, and controlling the raising or lowering the crucible on the basis of the weight of the shoulder that is calculated.

Abstract: An electronic device is provided. The electronic device includes a case member that includes an opening, an electric component provided on the case member, and a circuit board connected to the electric component via the opening, wherein a portion of the circuit board contacts the case member to seal the opening.

Abstract: A swing control system and method for a construction machine using an electric motor is provided. The swing control system includes a swing electric motor swinging an upper swing structure and a swing control unit.

Abstract: A system and method for controlling engine revolutions for a hybrid construction machine, including an engine, a hydraulic pump which is driven by the engine to drive a hydraulic actuator with discharged hydraulic fluid, a motor-generator which is driven by the engine to generate electricity and to drive the hydraulic pump as a motor supplementing the engine, an energy storage device which is charged with electric energy generated by the motor-generator and which supplies the electric energy for motor operation of the motor-generator, a torque detection unit for detecting an output torque of the hydraulic pump that is required to drive the hydraulic actuator, and a hybrid control unit for controlling the motor operation of the motor-generator to supplement the engine output if the change of the output torque of the hydraulic pump exceeds a predetermined level and it is determined that an engine revolution drop will occur.

Abstract: A control system and method for a hybrid construction machine is provided.

Abstract: A system and method for controlling engine revolutions for a hybrid construction machine is provided.

Abstract: A control system and method for a hybrid construction machine is provided.

Abstract: A swing control system and method for a construction machine using an electric motor is provided. The swing control system includes a swing electric motor swinging an upper swing structure and a swing control unit.

Abstract: A system and method for controlling engine revolutions for a hybrid construction machine is provided.

Abstract: The present invention relates to an apparatus for manufacturing a high-quality semiconductor single crystal ingot and a method using the same. The apparatus of the present invention includes a quartz crucible, a heater installed around a side wall of the quartz crucible, a single crystal pulling means for pulling a single crystal from the semiconductor melt received in the quartz crucible, and a magnetic field applying means for forming a Maximum Gauss Plane (MGP) at a location of ML-1000 mm to ML-350 mm based on a Melt Level (ML) of the melt surface, and applying a strong magnetic field of 3000 to 5500 Gauss to an intersection between the MGP and the side wall of the quartz crucible and a weak magnetic field of 1500 to 3000 Gauss below a solid-liquid interface.

Abstract: An apparatus for monitoring an operator vibration for an earth moving machinery with an operation cab is disclosed.