Abstract: A semiconductor device includes a substrate, a first active pattern disposed on the substrate, a second active pattern stacked on the first active pattern, a first gate structure extending to intersect the first active pattern and the second active pattern, a second gate structure spaced apart from the first gate structure and extending to intersect the first active pattern and the second active pattern, a first epitaxial pattern interposed between the first gate structure and the second gate structure, and connected to the first active pattern, a second epitaxial pattern interposed between the first gate structure and the second gate structure, and connected to the second active pattern, an insulating pattern interposed between the first epitaxial pattern and the second epitaxial pattern, and a semiconductor film interposed between the insulating pattern and the second epitaxial pattern, the semiconductor film extending along a top surface of the insulating pattern.

Abstract: A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.

Abstract: A method of calculating an inserting force using 3D modeling, the method being performed by a numerical analysis apparatus is provided. The method includes receiving 3D modeling of a first model and a second model and receiving a first movement direction of the first model to couple the first model to the second model and searching for a contact surface between the first model and the second model while simulating the movement of the first model along the first movement direction and calculating an inserting force required in the process of coupling the first model and the second model by using the contact surface.

Abstract: A bonding apparatus can include a console which controls bonding of at least one wire, a first bonding unit disposed on the console to bond a first wire to a first substrate, a second bonding unit disposed on the first bonding unit to bond a second wire to a second substrate different from the first substrate, and a vibration damping unit connected to the second bonding unit preventing vibrations generated in the second bonding unit from transmitting to the first bonding unit.

Abstract: A method of calculating an inserting force using 3D modeling, the method being performed by a numerical analysis apparatus is provided. The method includes receiving 3D modeling of a first model and a second model and receiving a first movement direction of the first model to couple the first model to the second model and searching for a contact surface between the first model and the second model while simulating the movement of the first model along the first movement direction and calculating an inserting force required in the process of coupling the first model and the second model by using the contact surface.

Abstract: A cover assembly of a hard disk drive is provided. The cover assembly includes a cover member with an edge portion protruding a predetermined height from an upper surface thereof, a damping plate disposed on the upper surface of the cover member, and a damper to absorb shocks applied to the edge portion of the cover member, the damper having a support portion disposed between a bottom surface of a border portion of the damping plate and the upper surface of the cover member to support the damping plate, and a protrusion extending upward from the support portion through a gap between the edge portion of the cover member and the damping plate. The protrusion of the damper may have a height that is higher than the edge portion of the cover member, whereby external shocks applied to the cover member are absorbed more efficiently by the protrusion of the damper so that a shock energy transferred to the hard disk drive is minimized.

Abstract: A hard disk drive includes a base including an installation space and a plurality of sidewalls, the installation space being formed by cutting a predetermined area of the plurality of sidewalls. The hard disk drive also includes a screw housing inserted in the installation space and coupled to the base, wherein the screw housing includes at least one screw hole. The hard disk drive also includes a damper interposed between the base and the screw housing.

Abstract: A disk clamping apparatus and method for securing a data storage disk to a spindle motor of a hard disk drive. The disk clamping apparatus includes a flange formed on an outer periphery of a hub of the spindle motor and a clamp. The clamp is provided with a central hollow portion to receive an upper end portion of the hub, and includes a hook for snapping onto the flange along an inner periphery thereof and a pressing portion contacted with an upper surface of the disk for pressing the disk in a vertical direction along an outer periphery thereof. When the clamp is being coupled to the hub, the clamp is deformed so that the hook snaps on the flange, resulting in the pressing portion pressing the disk in the vertical direction, using a resilient force produced from a deformation of the clamp. The clamp further includes a cap formed around the hook to cover the hub.

Abstract: A hard disk drive includes a housing including a base member and a cover member; a spindle motor installed on the base member; at least one disk for data storage mounted on the spindle motor; an actuator rotatably installed on the base member, the actuator having a read/write head for recording data on the disk or reproducing the recorded data; and an air guide placed on the bottom of the cover member, protruding toward the disk near the head, and dispersing an air flow caused by the rotation of the disk and directed toward the head. The air guide has a triangular shape with an apex directed against the air flow to split and direct the air flow toward the spindle motor and the disk such that the air guide alleviates the impact of the air flow on the head and reduces reducing the head's vibration.

Abstract: A pivot shaft fixing structure of a data storage device includes a projection hole formed through a top surface of a pivot shaft that rotatably supports an actuator. In addition, a projection protrudes from a bottom surface of a cover member and fits into the projection hole. Furthermore, a deformable member is disposed around at least a portion of the projection and is disposed between the bottom surface of the cover member and the top surface of the pivot shaft. The pivot shaft fixing structure is advantageously applied within a hard disk drive.

Abstract: A hard disk drive includes a base including an installation space and a plurality of sidewalls, the installation space being formed by cutting a predetermined area of the plurality of sidewalls. The hard disk drive also includes a screw housing inserted in the installation space and coupled to the base, wherein the screw housing includes at least one screw hole. The hard disk drive also includes a damper interposed between the base and the screw housing.

Abstract: A spindle motor assembly usable with a hard disk drive. The spindle motor assembly includes a data storage disc having a center hole, a clamping zone around the center hole, and a data zone provided at an outer portion of the clamping zone, a spindle motor to rotate the disc, the spindle motor including a shaft, a hub coupled to an outer circumference of the shaft, and a supporter disposed at an upper surface of the shaft and having an outer diameter smaller than the hub and extending a predetermined a height above an upper surface of the hub to contact the clamping zone of the disc to support the disc, and a clamping screw inserted into the center hole of the disc and fastened to the spindle motor to press the clamping zone to fix the disc to the supporter. Thus, the disc is fixed to the spindle motor without using a disc clamp or a spacer, and a recording area of the disc is maximized.

Abstract: A cover assembly of a hard disk drive is provided. The cover assembly includes a cover member with an edge portion protruding a predetermined height from an upper surface thereof, a damping plate disposed on the upper surface of the cover member, and a damper to absorb shocks applied to the edge portion of the cover member, the damper having a support portion disposed between a bottom surface of a border portion of the damping plate and the upper surface of the cover member to support the damping plate, and a protrusion extending upward from the support portion through a gap between the edge portion of the cover member and the damping plate. The protrusion of the damper may have a height that is higher than the edge portion of the cover member, whereby external shocks applied to the cover member are absorbed more efficiently by the protrusion of the damper so that a shock energy transferred to the hard disk drive is minimized.

Abstract: A pivot shaft fixing structure of a data storage device includes a projection hole formed through a top surface of a pivot shaft that rotatably supports an actuator. In addition, a projection protrudes from a bottom surface of a cover member and fits into the projection hole. Furthermore, a deformable member is disposed around at least a portion of the projection and is disposed between the bottom surface of the cover member and the top surface of the pivot shaft. The pivot shaft fixing structure is advantageously applied within a hard disk drive.

Abstract: A disk clamping apparatus and method for securing a data storage disk to a spindle motor of a hard disk drive. The disk clamping apparatus includes a flange formed on an outer periphery of a hub of the spindle motor and a clamp. The clamp is provided with a central hollow portion to receive an upper end portion of the hub, and includes a hook for snapping onto the flange along an inner periphery thereof and a pressing portion contacted with an upper surface of the disk for pressing the disk in a vertical direction along an outer periphery thereof. When the clamp is being coupled to the hub, the clamp is deformed so that the hook snaps on the flange, resulting in the pressing portion pressing the disk in the vertical direction, using a resilient force produced from a deformation of the clamp. The clamp further includes a cap formed around the hook to cover the hub.

Abstract: A hard disk drive includes a housing including a base member and a cover member; a spindle motor installed on the base member; at least one disk for data storage mounted on the spindle motor; an actuator rotatably installed on the base member, the actuator having a read/write head for recording data on the disk or reproducing the recorded data; and an air guide placed on the bottom of the cover member, protruding toward the disk near the head, and dispersing an air flow caused by the rotation of the disk and directed toward the head. The air guide has a triangular shape with an apex directed against the air flow to split and direct the air flow toward the spindle motor and the disk such that the air guide alleviates the impact of the air flow on the head and reduces reducing the head's vibration.

Abstract: An actuator for a hard disk drive has a separable assembled arm. The assembled arm is assembled adjacent to the actuator to add an additional head or heads to a basic actuator for including of arms having two or four heads, thereby allowing a large drive to be realized having a large number of arms and disks.

Abstract: A device for fixing an actuator and a cover in a hard disk drive is provided with a body base having a boss and a screw hole formed on the boss. A pivot bearing is formed at the center of the actuator and fit around the boss, a cylindrical ring of a predetermined length is closely inserted into the pivot bearing, a hole is formed on the cover, and a pivot screw is tightened into the screw hole of the boss through the hole of the cover and the cylindrical ring. Therefore, the actuator and the cover are simultaneously fixed on the base body by the pivot screw.

Abstract: An actuator crash stopper of the hard disk drive having a base for mounting all the components of the hard disk drive. An actuator stopper is provided on one side of the actuator adjacent to the pivot of the actuator so as to act as an inner and outer crash stopper at both inner and outer rotation limits of the actuator, thereby preventing the actuator from being rotated beyond the limits. A stopper guide is vertically fixed on the base so as to be engaged with the actuator stopper at the limits when the actuator rotates on the pivot.