Abstract: A suspension assembly for a magnetic head reduces isolation forces caused by swaging the suspension to an actuator arm of a disk drive. The suspension is formed with a first end, and a second end having an inner periphery which defines an opening. Tabs extend from the inner periphery into the opening. A base plate with a cylindrical hub is welded to the tabs and the hub extends through the inner periphery. Multiple isolation welds formed on the suspension cooperate with the tabs to isolate forces and limit force propagation when the hub is swaged to the actuator arm.

Abstract: An air bearing slider for a magnetic head is defined by a leading edge and a trailing edge and has a central longitudinal axis extending from the leading edge to the trailing edge. A pair of side pads, and a center pad between the side pads that is disposed substantially on the center axis, are formed on the air bearing surface of the slider. A first central recess having a T-shaped configuration is etched to a first depth, preferably in the range of 5-30 micro-inches with reference to the air bearing surface. A second major recess portion is etched to a second depth in the range of 60-150 micro-inches. The air bearing surface is configured for high load applications and maintains a flat flying height profile. The configured slider is particularly useful with small size sliders, such as picosliders.

Abstract: A magnetic transducer employs a giant magnetoresistive sensor whose sensing surface is separated by a dielectric layer from a magnetically recorded surface carrying recorded data signals to be read back by the transducer. The dielectric layer serves to protect the sensing layer from corrosion, electrostatic discharge from the record surface, mechanical damage from asperities, thermal asperities from heating resulting from close contact between the transducer and the record surface, and damage from exposure during lapping operations. This structure also reduces the readback pulse width and offtrack assymmetry, and improves servo linearity, thereby increasing recording density. The reduced signal amplitude is compensated for by the use of a giant magnetoresistive transducer with an intrinsically large output. The use of the recessed transducer reduces saturation of the transducer due to the record medium flux at reduced signal amplitudes, thereby increasing readback efficiency.

Abstract: An apparatus and method for assembling baseplates, which are joined to head suspensions, to actuator arms of an E-block for use in disk drives employ an assembly fixture for orienting and holding the head suspensions with reference to a pivot bearing formed in the E-block. An adhesive is interposed in a gap formed between each baseplate and corresponding actuator arm to maintain the suspensions in alignment relative to the pivot bearing. The assembly fixture includes clamps for maintaining the suspensions in a proper orientation. Each suspension has a locating surface that is planar with the gap for alignment of the suspensions.

Abstract: A magnetic head includes an inductive coil electrically partitioned into a plurality of segments by a plurality of conductive leads. During the data reading mode, magnetic flux changes emanating from a record medium are sensed by the magnetic head. The inductive coil transduces the magnetic flux changes into electrical signals at the conductive leads. The signals are amplified by serially cascading the plurality of segments and the signals are then fed into amplifiers. During the data writing mode, the electrical signal is applied to two of the conductive leads via a data writing amplifier. The inductive coil converts the electrical signal into changes in magnetic flux for recording onto a magnetic medium.

Abstract: A method of manufacturing a thin film merged magnetic head including an inductive write structure and a magnetoresistive sensor uses a patterned protection layer to protect a second shield/bottom pole layer in regions spaced from the pole tip of the inductive write structure. A window is provided in the protection layer. During manufacture, the configuration comprises a first shield layer, a magnetoresistive element, a second shield layer serving as a bottom pole, a protection layer, a protection window, a write gap, a top pole, and a pole tip structure. The use of a protection layer and window results in the formation of channels in the second shield layer adjacent to a pedestal that supports the inductive write structure. The channels prevent magnetic flux from extending toward the second shield layer beyond the width of the pole tip structure. This structure reduces side writing with a consequent improvement in off-track performance.

Abstract: A plasma generating apparatus is provided which uses slipping surface discharge and microwave to generate a large quantity of plasma in a different gases or gaseous mixtures (including electro-negative gases) in a wide range of gas pressure (from a deep vacuum up to atmospheric pressure). The plasma generating apparatus includes high voltage pulse means for generating a high voltage pulse, plasma generating means based on the slipping surface discharge which excites as the high voltage pulse generated by high voltage pulse generating means, is supplied, microwave generating means for generating a microwave radiation for producing plasma, a chamber in which the plasma generating means are placed, and the plasma collects, the chamber receiving the microwave radiation from the microwave generating means, and a gas inlet through which a specific gas flows into the chamber, to generate a large quantity of plasma according to the plasma generating means and microwave generating means.

Abstract: An air bearing slider used with a thin film magnetic head is formed with a corner recess and a taper at the leading edge. The taper is disposed between the corner recess and one side of the slider. A central polygon-shaped recess is bounded by pads which are joined by a connecting section. In an alternative embodiment, a recess at the leading edge separates the taper into sections. In another embodiment, a second corner recess is provided at the leading edge and the taper is disposed between the first and second corner recesses. The shaped recesses and tapers improve the flying characteristics of the slider and enhance air bearing stiffness. A single etch process is used to form the recesses and side reliefs of the slider.

Abstract: A magnetic head includes first and second pole tips separated by a nonmagnetic gap layer. The right side walls of the first and second pole tips are vertically aligned. Similarly, the left side walls of the first and second pole tips are vertically aligned. The side fringing flux is substantially reduced resulting in a magnetic head capable of writing data tracks with well defined boundaries. The fabrication of the magnetic head begins with forming a stack of layers on a substrate. The stack of layers includes a nonmagnetic layer sandwiched between the first pole tip layer and a sacrificial layer which is preferably made of a metal. A protective layer, such as alumina, is then deposited over and around the stack of layers. After planarization and ion milling, the sacrificial layer is exposed. The sacrificial layer is then etched away leaving a volume of space in the protective layer and above the gap layer. An inductive coil with associated dielectric layers are then deposited above the first pole layer.

Abstract: A magnetoresistive read sensor fabricated on a substrate includes a ferromagnetic layer that is exchange coupled with an antiferromagnetic layer made of a defined composition of iridium manganese. A tantalum layer is used so that the exchange field and coercivity do not change with variations in annealing temperature. The antiferromagnetic layer is formed with a material composition of Ir.sub.x Mn.sub.100-x, wherein x is in the range of 15<.times.>23. In an embodiment of a spin valve structure, the tantalum layer is disposed over the substrate and the antiferromagnetic layer is in direct contact with a pinned ferromagnetic layer. In another embodiment, the IrMn layer is formed over a soft active layer. In a third embodiment using exchange pinning, spaced IrMn regions are formed over the active magnetoresistive layer to define the sensor track width.

Abstract: The present invention relates to an ash tray, and more particularly to an ash tray which can sanitarily control as well as automatically extinguish a smoking cigarette butt when it is put in the ash tray. In accordance with the present invention, the ash tray comprises a tube body in which cigarette butts are received and a porous member is equipped to the inward lower; a cap covering the upper end of the tube body; and an aroma tube coupled to the lower of the tube body in which an aromatic is equipped therein.

Abstract: A suspension assembly for a magnetic head reduces isolation forces caused by swaging the suspension to an actuator arm of a disk drive. The suspension is formed with a first end, and a second end having an inner periphery which defines an opening. Tabs extend from the inner periphery into the opening. A base plate with a cylindrical hub is welded to the tabs and the hub extends through the inner periphery. Multiple isolation welds formed on the suspension cooperate with the tabs to isolate forces and limit force propagation when the hub is swaged to the actuator arm.

Abstract: A semen storage container containing the semen of a male pig is sealed with a stopper having a cone-shape vomiting portion whose point is closed at one end when the semen is used for artificial insemination, a predetermined portion of the cone-shape vomiting portion of the stopper is cut inserted into an insertion tube which is then inserted into the womb of female pig, thereby easily and cleanly carrying out artificial insemination. A window for confirming the amount of semen stored is added to the semen storage pack who se exterior is shading-printed to block a harmful ray of light such as direct ray of light, protecting the semen from deterioration.

Abstract: A method of making a magnetic head suspension assembly includes attaching a slider with a magnetic head to an intermediate flexible circuit. The attached combination is then inserted into a spin stand tester for the testing of electrical performance. If the attached combination fails the test, it is discarded, thereby avoiding the cost of discarding an entire head suspension assembly. On the other hand, if the attached combination passes the test, it is mounted to a load beam to form the head suspension assembly. Thereafter, a flex circuit can be attached to the load beam and intermediate flexible circuit to provide electrical connections to the magnetic head through the intermediate flexible circuit.

Abstract: An air bearing slider used with a thin film magnetic head is formed with a corner recess and a taper at the leading edge. The taper is disposed between the corner recess and one side of the slider. A central polygon-shaped recess is bounded by pads which are joined by a connecting section. In an alternative embodiment, a recess at the leading edge separates the taper into sections. In another embodiment, a second corner recess is provided at the leading edge and the taper is disposed between the first and second corner recesses. The shaped recesses and tapers improve the flying characteristics of the slider and enhance air bearing stiffness. A single etch process is used to form the recesses and side reliefs of the slider.

Abstract: An apparatus for producing in a deposition system an aligned uniform magnetic field across a workpiece or a wafer having a large surface area includes spaced flux guides which are formed with tapered sections that narrow towards the central region of the wafer. Magnetic members which may be permanent magnets or electromagnets are disposed close to the wafer and co-act with the flux guides to achieve the desired uniform magnetic field. In this way, thin films deposited within the deposition system are formed with uniform thickness and magnetic properties.

Abstract: A magnetoresistive sensor including a magnetoresistive (MR) sensing element, a nonmagnetic layer ("spacer") contacting the magnetoresistive sensing element; a first antiferromagnetic (AFM) layer contacting the nonmagnetic layer such that the nonmagnetic layer is sandwiched between the magnetoresistive sensing element and the antiferromagnetic layer; a ferromagnetic soft adjacent layer (SAL) contacting the antiferromagnetic layer such that the antiferromagnetic layer is sandwiched between the nonmagnetic layer and the soft adjacent layer; and a second antiferromagnetic layer contacting the SAL such that the SAL is sandwiched between the first and second antiferromagnetic layers. The two antiferromagnetic layers provide a stronger pinning effect. In one embodiment of the invention, the magnetoresistive sensing element is an anisotropic magnetoresistive (AMR) sensing element comprising a soft ferromagnetic layer.

Abstract: A system and method for providing a head for reading data is disclosed. The method and system include providing a magnetoresistive element and providing a flux guide having a high resistivity. The magnetoresistive element has an end. The flux guide also has an end. The end of the flux guide is adjacent to the end of the magnetoresistive element.

Abstract: An air bearing slider for use in a disk drive includes a leading edge, a trailing edge, and parallel sides defined between said edges. The slider has a plurality of pads that form discrete air bearing surfaces having a uniform height. The pads include two leading pads formed along the leading edge, a center pad defined along the trailing edge and two side pads. A platform surrounds the center pad and another platform is formed between the leading pads. The slider has a side bridge between each side pad and leading pad and a leading bridge between the leading pads. The side bridge has a height that is less than the height of the pads and which is configured to direct air towards the side pads. The directed air in cooperation with the slider geometry regulates lifting pressure under the center and side pads to limit pitch and maintain a constant slider flying height.