Abstract: A method of manufacturing a semiconductor die stack structure includes: preparing a base die including a base die substrate and a base die inter-layer dielectric layer; forming a base die front-side bonding pad structure; preparing a bottom die having a bottom die substrate and bottom die through-electrode; forming a bottom die front-side bonding pad structure in the bottom die substrate; forming a base-bottom die stack structure where the bottom die front-side bonding pad structure is directly in contact with the base die front-side; forming a base die through-electrode vertically passing through the base die substrate and electrically connected to the base die front-side bonding pad structure; forming a base die back-side bump structure electrically connected to the base die through-electrode; stacking middle dies and a top die in the base-bottom die stack structure; and forming a bottom die back-side bump structure electrically connected to the bottom die through-electrode.

Abstract: The present invention aims to provide a variable damper seat post, which comprises: a damper base provided at an upper end portion of a post; a seat connecting body disposed on the damper base of the post and coupled to a seat on which buttocks of a passenger are seated; a fixing unit for fixing the seat connecting body to the damper base; and a damper, interposed between the damper base and the seat connecting body, for varying positions of the seat depending on the movement of the buttocks on the seat, wherein the damper is composed of an elastic member that is pressed when a pressing force is applied and returns back to its original shape when the pressing force is released, and is interposed between the damper base and the seat connecting body.

Abstract: The present invention aims to provide a variable damper seat post, which comprises: a damper base provided at an upper end portion of a post; a seat connecting body disposed on the damper base of the post and coupled to a seat on which buttocks of a passenger are seated; a fixing unit for fixing the seat connecting body to the damper base; and a damper, interposed between the damper base and the seat connecting body, for varying positions of the seat depending on the movement of the buttocks on the seat, wherein the damper is composed of an elastic member that is pressed when a pressing force is applied and returns back to its original shape when the pressing force is released, and is interposed between the damper base and the seat connecting body.

Abstract: A wheel house reinforcement structure is configured to reinforce stiffness of a wheel house in a vehicle body, and includes: a mounting part configured to form a top surface of an inner wheel house, and on which an absorber mounting bracket is mounted; a cover part integrally extending from the mounting part while being downward of an inner side end of the mounting part, and an assembling hole assembled with a quarter panel being formed in a lower side of the cover part; and a trunk lid mounting part integrally extending toward a rear direction in a top side of the mounting part, a hinge mounting end having a mounting hole in which a hinge portion of a trunk lid is mounted being formed at a rear end of the trunk lid mounting part.

Abstract: A wheel house reinforcement structure is configured to reinforce stiffness of a wheel house in a vehicle body, and includes: a mounting part configured to form a top surface of an inner wheel house, and on which an absorber mounting bracket is mounted; a cover part integrally extending from the mounting part while being downward of an inner side end of the mounting part, and an assembling hole assembled with a quarter panel being formed in a lower side of the cover part; and a trunk lid mounting part integrally extending toward a rear direction in a top side of the mounting part, a hinge mounting end having a mounting hole in which a hinge portion of a trunk lid is mounted being formed at a rear end of the trunk lid mounting part.

Abstract: A structure for reducing noise of an engine room includes a hood configured to open and close an engine room, the hood having opposing inside and outside surfaces, wherein the inside surface is inside the engine room when the hood is closed. A weather strip is disposed on the inside surface of the hood, and sealing rails are configured to be tightly pressed against the weather strip to shield noise generated from the engine room.

Abstract: A structure of a soundproof cover for an engine room is mounted on a body frame at a rear side of the engine room in which an engine is mounted. The structure may include two or more piece members that are detachably coupled to each other and collectively form the soundproof cover in a panel shape. The soundproof cover is to be mounted on the body frame so that one side surface of the soundproof cover is directed toward the engine and the other side surface of the soundproof cover is directed toward an interior of a vehicle.

Abstract: A structure of a soundproof cover for an engine room is mounted on a body frame at a rear side of the engine room in which an engine is mounted. The structure may include two or more piece members that are detachably coupled to each other and collectively form the soundproof cover in a panel shape. The soundproof cover is to be mounted on the body frame so that one side surface of the soundproof cover is directed toward the engine and the other side surface of the soundproof cover is directed toward an interior of a vehicle.

Abstract: An apparatus for assembling a fender panel of a vehicle, including a single-type bracket may have a horizontal assembly surface at an upper end portion thereof, and an assembly end having a fender panel assembly aperture at a lower end portion thereof extending from the horizontal assembly surface toward a front side of the vehicle, wherein the assembly end of the single-type bracket may be mounted on a front end portion of a fender panel located between a front end module and a bumper cover, and wherein the horizontal assembly surface may be fixed to a lower end portion of a fender apron upper member.

Abstract: An apparatus for assembling a fender panel of a vehicle, including a single-type bracket may have a horizontal assembly surface at an upper end portion thereof, and an assembly end having a fender panel assembly aperture at a lower end portion thereof extending from the horizontal assembly surface toward a front side of the vehicle, wherein the assembly end of the single-type bracket may be mounted on a front end portion of a fender panel located between a front end module and a bumper cover, and wherein the horizontal assembly surface may be fixed to a lower end portion of a fender apron upper member.

Abstract: A subframe for a vehicle satisfies durability and crash performance of a rear mounting portion during vehicle crash. The subframe may include an upper reinforcement and a lower reinforcement, which are spaced apart from each other and assembled to the subframe, and a rear mounting bracket connected to a chassis via a mounting bolt, wherein the lower reinforcement includes a bolt pushing-inducing trim line connected to a bolt hole and the upper reinforcement includes a pair of deformation-inducing holes formed on both front and rear of a pipe nut such that the mounting bolt is separated from an initial position and the upper reinforcement is deformed when an impact load is applied.

Abstract: A system for treating recirculating nutrients using floating media is disclosed. The system is operated in such way that wastewater influent path is changed between a first mode and a second mode at a certain period of time interval. Wastewater influent at the first mode sequentially flows into a first anoxic tank, a second anoxic tank, and an aerobic tank. Wastewater influent at the second mode sequentially flows into the second anoxic tank, the first anoxic tank, and the aerobic tank. Part of the wastewater that flows into the aerobic tank bypasses the first anoxic tank and the second anoxic tank. Part of the wastewater, which flows from the aerobic tank into the first anoxic tank or from the aerobic tank into the second anoxic tank, continuously bypasses the aerobic tank through an internal recirculation pump.