Abstract: A semiconductor device includes a substrate having a cell region and a peripheral region surrounding the cell region, a lower electrode extending in a vertical direction on the cell region of the substrate, an upper electrode surrounding a sidewall and a top surface of the lower electrode, a capacitor dielectric layer disposed between the lower electrode and the upper electrode, a first barrier layer disposed on the upper electrode, the first barrier layer in contact with each of a sidewall and a top surface of the upper electrode, a first interlayer insulating layer covering the first barrier layer, the first interlayer insulating layer including a material different from the first barrier layer, and a first contact penetrating through the first barrier layer and the first interlayer insulating layer in the vertical direction, the first contact connected to the upper electrode.

Abstract: Disclosed is a composite for forming a coacervate interfacial film. The composite for forming the coacervate interfacial film contains a cationic hectorite nanoplate-shaped particle structure containing a hectorite nanoplate-shaped particle and a cationic surfactant coupled to a surface of the hectorite nanoplate-shaped particle, and an anionic cellulose nanofibril containing an anionic functional group in at least a portion thereof, in which the composite may form the coacervate interfacial film at an interface of an oil phase and a water phase through electrostatic interaction between the cationic surfactant and the anionic functional group.

Abstract: Disclosed are a thermoplastic elastomeric composition for vehicle mounts which has improved surface energy and compression set while solving reduction in wear strength, by blending EPDM rubber, polypropylene, silicon, and poly(styrene-ethylene-butadiene-styrene) (SEBS) in appropriate amounts, and a molded article including the same.

Abstract: A high-frequency treatment device includes a tubular body having a front end portion and a rear end portion; an operating handle having a high-frequency port and a main push rod extending through the body, the operating handle slidably fitted to the body; a front tube having a rear end portion connected to the front end portion of the body; an auxiliary push rod rotatably connected to the main push rod, the auxiliary push rod extending into the front tube; a wire fixed to the auxiliary push rod, the wire extending through the front tube; a rotary knob rotatably attached to the body, the rotary knob configured to rotate together with the auxiliary push rod and the wire; and an arc-shaped knife fixed to the wire and connected to the high-frequency port of the operating handle via the wire, the auxiliary push rod and the main push rod.

Abstract: The object of this invention is to provide a self-expandable stent, made of a shape-memory alloy and used for insertion in a narrow or blocked target portion of the contracted gullet having a lesion so as to open the target portion. The stent includes a coated primary unit having a hollow cylindrical body fabricated by knitting a shape-memory alloy wire to make a net structure, with both an enlarged diameter part and a coat layer. An uncoated secondary unit surrounds the hollow cylindrical body of the coated primary unit. The secondary unit has a hollow cylindrical body fabricated by knitting a superelastic shape-memory alloy wire to make a net structure having diamond-shaped meshes. The stent is prevented from being undesirably removed from a narrow or blocked target portion of the gullet having a lesion.

Abstract: Disclosed herein is a flexible self-expandable stent using shape memory alloy for expanding stenosal portions and method and apparatus for fabricating the same.

Abstract: Disclosed herein is a flexible self-expandable stent using shape memory alloy for expanding stenosal portions and method and apparatus for fabricating the same.

Abstract: A stent (5), made of a shape-memory alloy and inserted into a stenosed vessel (50), and a stent foundation device for inserting such a stent (5) into a desired part (52) of the stenosed vessel (50) are disclosed. The stent (5) consists of a net-structural hollow cylindrical body (3) made by knitting one longitudinal superelastic shape-memory alloy wire while repeatedly crossing the wire at various points so as to form a plurality of diamond-shape meshes (2). The stent foundation device consists of an actuation steel core (12), a moveable tube (15) and an insert tube (20), which are received within an outside hollow tube (13) while being axially movable within the outside tube. (13). In the above device, an insert tip (23) is connected to the front end of the insert tube (20). The insert tip (23) has a step (22) forming a fitting end, at which the insert tip (23) is partially fitted into the front end of the outside tube (13) and is connected to the front end of the insert tube (20).

Abstract: Disclosed herein is a flexible self-expandable stent using shape memory alloy for expanding stenosal portions and method and apparatus for fabricating the same.