Abstract:
A semiconductor device in which polysilicon is used to form source and drain regions in an initial process step so as to reduce resistance of bit lines and minimize a junction capacitance and thus improve its reliability, and a method for fabricating the same are disclosed, the semiconductor device including a semiconductor substrate, trenches formed in predetermined areas of the semiconductor substrate, an insulating layer formed in the trenches and beneath a surface of the substrate to have a recess, a polysilicon layer formed on the insulating layer in the trench, source and drain regions formed at both sides of the polysilicon layer beneath a surface of the semiconductor substrate, and gates formed over the semiconductor substrate.
Abstract:
A non-volatile memory device includes a substrate, a projection having two sides formed on the substrate, a floating gate formed on the projection, a control gate formed on the substrate including the floating gate, a first impurity region formed in the substrate extended from one side of the projection, and a second impurity region formed in the substrate at the other side of the projection and in the substrate extended from the other side of the projection.
Abstract:
A semiconductor device having a recessed channel structure which has a semiconductor region positioned at a level above a channel region, including a first conduction type substrate having a channel region therein, a second conduction type semiconductor region formed on the substrate excluding the channel region, a first insulation film formed on the semiconductor region, a second insulation film formed on a surface between the channel region and the semiconductor region, a first gate formed on a gate insulation film on the channel region, and a dielectric film formed between the first gate and the first insulation film. Also, a method for fabricating a semiconductor device having a recessed structure, including the steps of: forming a second conduction type polysilicon film on a first conduction type substrate; forming a first insulation film on the polysilicon film; forming a semiconductor layer by etching the first insulation film and the underlying polysilicon film; forming a second insulation film on an exposed surface of the substrate between the semiconductor layer and at sides of the semiconductor layer and the first insulation film; forming a first gate on the second insulation film; forming a dielectric film on a surface between the first gate and the second insulation film; and forming a second gate on the dielectric film.
Abstract:
Provided is a magnetic memory device. The magnetic memory device includes a first magnetization layer, a tunnel barrier disposed on the first magnetization layer, a second magnetization layer disposed on the tunnel barrier, and a spin current assisting layer disposed on at least a portion of a sidewall of the second magnetization layer.
Abstract:
Magnetic memory devices may include a substrate, a circuit device on the substrate, a plurality of lower electrodes electrically connected to the circuit device, a magnetic tunnel junction (MTJ) structure commonly provided on the plurality of the lower electrodes, and a plurality of upper electrodes on the MTJ structure. The MTJ structure may include a plurality of magnetic material patterns and a plurality of insulation material patterns separating the magnetic material patterns from each other.
Abstract:
Magnetoresistive elements, and memory devices including the same, include a free layer having a changeable magnetization direction, a pinned layer facing the free layer and having a fixed magnetization direction, and an auxiliary element on a surface of the pinned layer. The auxiliary element has a width smaller than a width of the pinned layer, and a magnetization direction fixed to a direction the same as a direction of the fixed magnetization direction of the pinned layer.
Abstract:
A semiconductor apparatus and a design method for the semiconductor apparatus allow debugging or repairs by using a spare cell. The semiconductor apparatus includes a plurality of metal layers. At least one repair block performs a predetermined function. A spare block is capable of substituting for a function of the repair block. And at least one of the plurality of metal layers is predetermined to be a repair layer for error revision. At least one pin of the repair block is connected to the repair layer through a first pin extension, and at least one pin of the spare block is capable of extending to the repair layer. When the repair block is to be repaired, the pin extension of the repair layer and the repair block is disconnected, and at least one pin of the spare block is connected to the repair layer through a second pin extension.
Abstract:
A UV fluid sterilizer which makes it possible to effectively sterilize a fluid which has a low UV transmissivity and an advanced oxidation device with high oxidation efficiency using a turbulent flow. To this end, the UV sterilizer or advanced oxidation device has a spring coil or wrinkled pipe in a spiral shape to bring forth a turbulent or spiral flow in the fluid.
Abstract:
A catalytic combustor and a fuel reformer having the same. The catalytic combustor includes a housing having a cylindrical reaction portion and a second reaction portion surrounding the first reaction portion in a double tube shape. The housing has a first opening for supplying a first fuel and an oxidant to the first reaction portion and a second opening through which an exhaust in the second reaction portion is discharged. The first and second openings are disposed at first sides of the first and second reaction portions, respectively. The first and second reaction portions are connected with each other so that the fluid is communicated with the first and second reaction portions at second sides of the first and second reaction portions. A catalyst is disposed in the first reaction portion, and a mesh layer is inserted into the second reaction portion.
Abstract:
Information storage devices and methods of manufacturing the same are provided. A magnetic track of the information storage device includes a magnetic layer in which at least one magnetic domain forming region and at least one magnetic domain wall forming region are alternately disposed in a lengthwise direction. The at least one magnetic domain forming regions has a different magnetic anisotropic energy relative to the at least one magnetic domain wall forming region. An intermediate layer is formed under the magnetic layer. The intermediate layer includes at least one first material region and at least one second material region. Each of the at least one first material regions and the at least one second material regions corresponds to one of the at least one magnetic domain forming regions and the at least one magnetic domain wall forming regions.