Abstract: An auto-folding headrest for a vehicle according to an embodiment of the present disclosure includes: a base bracket assembly configured to be fixedly installed on a seat frame constituting a seat of the vehicle; a stay assembly rotatably connected to the base bracket assembly and configured to support the headrest of the vehicle; a locking assembly provided on the base bracket assembly and configured to be changed into a locked state or an unlocked state to fix or release a rotation of the stay assembly; and a sliding bar coupled to the locking assembly and configured to change the locking assembly into the locked state or the unlocked state by a sliding operation.

Abstract: An embodiment of the present disclosure provides a circuit board including: an insulating layer including a first area on one surface on which an electronic component is mounted and a second area adjacent to the first area; a connection pad disposed in the first area; and a solder resist layer covering the one surface of the insulating layer and being opened to expose the connection pad. At least a portion of the solder resist layer extends from the second area to the first area, and a portion of the insulating layer is exposed from the solder resist layer in the first area.

Abstract: A method of manufacturing an amorphous silicon solar cell is disclosed in which the intrinsic body is formed as three laminated layers which are deposited by controlling the level of RF power for each lamina, thereby enhancing efficiency converting sunlight into electricity and promoting productivity.