Abstract: Disclosed is a high-pressure annealing device including a nozzle assembly. The high-pressure annealing device is configured to prevent, when gas is supplied to the inside of a chamber of the high-pressure annealing device through a gas nozzle, damage generated during coupling of the gas nozzle to a gas supply module.

Abstract: Disclosed is a high-pressure annealing device including an internal chamber configured to provide an internal space, an external chamber configured to accommodate the internal chamber therein, a heating module configured to perform heat treatment and disposed in an external space provided between the internal chamber and the external chamber, and a shielding element configured to seal the lower portion of the external space, thereby preventing dispersion of particles generated from the heating module and preventing contamination of a substrate (a semiconductor wafer) due to the particles.

Abstract: Disclosed are a jig device for attachment and detachment of a heater unit, a system for attachment and detachment of the heater unit, and a high-pressure annealing device capable of attaching and detaching the heater unit thereto and therefrom. The heater unit is attachable to or detachable from the high-pressure annealing device through upward movement or downward movement of the heater unit from or toward the lower portion of an outer chamber in a state in which the heater unit disposed in the high-pressure annealing device is supported by the jig device.

Abstract: A power train for a vehicle may include a differential case; a differential ring gear aligned to be concentric to the differential case, and provided in a relatively rotatable state therebetween; and a connection/disconnection mechanism provided to connect or disconnect the differential ring gear and the differential case in a state where power is transferred thereto.