Abstract: A connector having a shield structure includes a housing, an outer case connected to the housing, an inner case disposed between the housing and the outer case, and a shield structure surrounding the inner case. The connector includes a first cable having a first line, a first inner cover surrounding the first line, and a first cable shield surrounding the first inner cover and connected to the shield structure. The connector includes a second cable having a second line, a second inner cover surrounding the second line, and a second cable shield surrounding the second inner cover and connected to the shield structure. The connector includes a ground terminal electrically connecting the first cable shield and the second cable shield to a first ground, and a ground cable connected to the ground terminal and electrically connecting the first cable shield and the second cable shield to a second ground.

Abstract: A fluid level measurement system using a buoyant body includes a guide part installed in a direction perpendicular to the bottom surface of a fluid storage tank, and provided with a space in which a fluid can move therein; a buoyant body inserted into the guide part, and configured to float along the surface of the fluid inside the guide part; and a measurement part coupled to the top end of the guide part, and configured to measure the level of the surface of the fluid inside the fluid storage tank by transmitting a signal toward the buoyant body in the inner space of the guide part and then receiving a signal reflected from the buoyant body.

Abstract: Disclosed is a surface acoustic wave (SAW) wafer level package including a substrate, an interdigital transducer (IDT) formed on the substrate, a sidewall formed on the substrate along a periphery of the IDT, a cover formed above the sidewall and the IDT to form a hollow above the IDT with the sidewall, a connection electrode formed on the substrate, electrically connected to the IDT, and extending outward from a periphery of the sidewall, a connection terminal electrically connected to a part of the connection electrode which extends outward from the periphery of the sidewall, formed throughout one outer surface of the sidewall and one surface and a part of a top surface of the cover, and having a top surface formed to be higher than the top surface of the cover, and an organic solderability preservative (OSP) coating layer formed on at least the top surface of the connection terminal.

Abstract: A surface acoustic wave wafer-level package includes a substrate, an interdigital transducer (IDT) electrode formed on the substrate, a connection electrode electrically connected to the IDT electrode, a side wall formed on the substrate and outside the IDT electrode, a cover formed above the side wall and the IDT electrode to form a cavity, together with the side wall, on the IDT electrode, a connection terminal electrically connected to the connection electrode and protruding above the cover, a first reinforcement layer formed on the cover to at least partially overlap the cavity in a vertical direction, a second reinforcement layer formed to cover the cover and the first reinforcement layer and having holes formed in a portion corresponding to the connection terminal and a portion corresponding to the first reinforcement layer, and bumps formed in the respective holes of the second reinforcement layer to protrude above the second reinforcement layer.

Abstract: A backbone correction exercise apparatus is provided, in which a user lies on a bed and wears a pelvis belt, adjusts distance from an exercise unit depending on a user's physical condition, and then perform recursive exercises, to thereby slack and restore the cervical vertebra portion and the lumbar vertebra portion of the human body repeatedly and to thus strengthen spinal peripheral support muscles in order to provide a spinal curative effect as well as a spinal exercise effect, and which includes and exercise unit which enables a user to lie on a bed and take an exercise using the user's feet, and a pelvis belt whose intermediate portion is fixed to the bed on which the user lies and whose side extensions extended from the intermediate portion rise up from the bed and wrap and hold a portion corresponding to the waist of the user with a binding unit which is provided in the ends of the extensions.

Abstract: A backbone correction exercise apparatus is provided, in which a user lies on a bed and wears a pelvis belt, adjusts distance from an exercise unit depending on a user's physical condition, and then perform recursive exercises, to thereby slack and restore the cervical vertebra portion and the lumbar vertebra portion of the human body repeatedly and to thus strengthen spinal peripheral support muscles in order to provide a spinal curative effect as well as a spinal exercise effect. The backbone correction exercise unit includes an exercise unit which enables a user to lie on a bed and take an exercise using the user's feet, and a pelvis belt which is fixed to the bed on which the user lies and a portion corresponding to the waist of the user who lies on the bed, and which holds the user's waist to then be fixed to the bed.