摘要:
Provided are a variable resistance memory device and a method of forming the same. The variable resistance memory device may include a substrate, a plurality of bottom electrodes on the substrate, and a first interlayer insulating layer including a trench formed therein. The trench exposes the bottom electrodes and extends in a first direction. The variable resistance memory device further includes a top electrode provided on the first interlayer insulating layer and extending in a second direction crossing the first direction and a plurality of variable resistance patterns provided in the trench and having sidewalls aligned with a sidewall of the top electrode.
摘要:
Provided are a variable resistance memory device and a method of forming the same. The variable resistance memory device may include a substrate, a plurality of bottom electrodes on the substrate, and a first interlayer insulating layer including a trench formed therein. The trench exposes the bottom electrodes and extends in a first direction. The variable resistance memory device further includes a top electrode provided on the first interlayer insulating layer and extending in a second direction crossing the first direction and a plurality of variable resistance patterns provided in the trench and having sidewalls aligned with a sidewall of the top electrode.
摘要:
A resistance variable memory device includes at least one bottom electrode, a first insulating layer containing a trench which exposes the at least one bottom electrode, and a resistance variable material layer including respective first and second portions located on opposite sidewalls of the trench, respectively, where the first and second portions of the resistance variable material layer are electrically connected to the at least one bottom electrode. The device further includes a protective layer covering the resistance variable material layer within the trench, and a second insulating layer located within the trench and covering the protective layer within the trench
摘要:
A power supply circuit including a voltage regulator and a headphone driving circuit employing the same are disclosed. In accordance with the present invention, the power supply circuit may provide stable power supply to the amplifier since the power supply circuit generates the constant voltage +Vreg and the constant voltage −Vreg from +VDD robust to stronger than a power noise, and the balanced signal path for isolating the noise of the input signal to be amplified is not required, thereby simplifying the constitution of the circuit.
摘要:
Provided is a tubular torsion beam for rear suspensions of vehicles, which is produced according to a more durable design capable of improving roll stiffness and roll strength of the tubular torsion beam. The tubular torsion beam is produced by pressure-forming a tubular steel member through hydroforming such that the tubular torsion beam has a cross-section varying along an entire length thereof, with opposite ends having a closed cross-section and mounted to respective trailing arms, a middle portion having a V-shaped open cross-section, and a transitional portion having a varying cross-section and connecting the middle portion to each of the opposite ends. During the process of manufacturing the tubular torsion beam, the opposite ends of the tubular steel member are fed using respective axial punches of a hydroforming machine, so that the opposite ends are thicker than the middle portion.
摘要:
A transmission gate switch includes a switching unit to conduct a switching operation between first and second nodes in response to a switching signal, and an isolation unit to prevent the switching unit from being turned on by a negative swing of the first or second node while the switching unit is being turned off.
摘要:
Provided is a tubular torsion beam for rear suspensions of vehicles, which is produced according to a more durable design capable of improving roll stiffness and roll strength of the tubular torsion beam. The tubular torsion beam is produced by pressure-forming a tubular steel member through hydroforming such that the tubular torsion beam has a cross-section varying along an entire length thereof, with opposite ends having a closed cross-section and mounted to respective trailing arms, a middle portion having a V-shaped open cross-section, and a transitional portion having a varying cross-section and connecting the middle portion to each of the opposite ends. During the process of manufacturing the tubular torsion beam, the opposite ends of the tubular steel member are fed using respective axial punches of a hydroforming machine, so that the opposite ends are thicker than the middle portion.
摘要:
An apparatus and method for manufacturing using a hydroforming process. The apparatus includes: upper and lower molds; first and second axial punches which are disposed on opposite sides of the steel substance so as to be movable towards each other and which have front surfaces configured so as to be insertable into each other; first and second pressurization cylinders which move the first and second axial punches towards each other and insert them into each other, thus forming a sealing space defined by the first and second axial punches and a pressurization space defined by the steel substance and the first and second axial punches; and a control unit which, through an oil-pressure passage formed in at least one of the first and second axial punches, supplies fluid into the pressurization space to pressurize the steel substance, thus forming the large caliber product.