摘要:
Embodiments of the present invention provide a grounded conductive layer between the heater and the lower magnetoresistive (MR) shield in the read/write head structure. The grounded conductive layer eliminates or at least substantially prevents the accumulation of charges on the lower MR shield as a result of the voltage supplied to the heater. In one embodiment, a magnetic head comprises a plurality of read/write components; a heater disposed near the plurality of read/write components; and a grounded conductive layer disposed between the heater and the plurality of read/write components.
摘要:
A slider assembly, comprising a slider having a magnetic head for reading and/or writing to a storage medium, and a vibration absorber operatively coupled to the slider for reducing mechanical vibrations of the slider caused by contact of the slider with the storage medium. The vibration absorber preferably includes a coupling portion coupled to the slider, and a weight coupled to the coupling portion by a resiliently deformable (e.g., flexible or elastic) member.
摘要:
A method and system for capturing real-time digital image data that is in rasterized form. A digital source sends rasterized data to a storage device, which passes the rasterized data to a display device. The rasterized data is then converted into a page format, such as PowerPoint™ formatted slides, based on changes in the rasterized data. If the data changes quickly enough, the storage device converts the rasterized data into a motion picture format. Otherwise, the rasterized data is stored as a single page static image.
摘要:
A data storage system has a disk having a first, second and third zone. The first zone has rough texturing to prevent stiction between a slider at rest and the disk. The second zone has intermediate texturing to prevent stiction when a moving slider is in contact with the disk. The third zone has a smooth texture and is used for data recording. A control unit moves the slider between the zones as appropriate on power up and power down of the system. The system has an actuator latch having a bias device. The bias device allows the slider to be positioned between the first and second zones by selective energizing of the actuator while in the latched position.
摘要:
A method and apparatus for predicting write failure resulting from flying height modulation and initiating re-writing of data upon occurrence of the predicted write failure is disclosed. According to the present invention, if the slider or transducer flying height modulates during the write process, such modulation is detected, and a rewrite of the same data is forced. A write reassign may be initiated when a thermal signal exceeding the predetermined threshold is detected during the rewrite and/or a read/verify may be initiated after the rewrite.
摘要:
Embodiments of the present invention provide a grounded conductive layer between the heater and the lower magnetoresistive (MR) shield in the read/write head structure. The grounded conductive layer eliminates or at least substantially prevents the accumulation of charges on the lower MR shield as a result of the voltage supplied to the heater. In one embodiment, a magnetic head comprises a plurality of read/write components; a heater disposed near the plurality of read/write components; and a grounded conductive layer disposed between the heater and the plurality of read/write components.
摘要:
A disk drive with switchable power levels for the heaters in the sliders is disclosed. The invention includes a switch for the electrical circuit of each heater which selects between two or more voltages to apply to the power control element and the heater with at least a high and a low voltage option. The heater power control circuit dissipates a certain amount of heat as a part of the control process. By having a low voltage option the disk drive can save power and reduce the amount of heat dissipated by the heater control circuit when high power is not required. The programmable switch is controlled by the drive control system. The high power setting can be used during manufacturing testing or otherwise if higher heater power is needed. The low power setting is used for normal operation or to save power.
摘要:
A method and apparatus for optimizing flying height control using heated sliders is disclosed. A first heater is provided in a slider for implementing a first operating characteristic and a second heater is provided in the slider for implementing a second operating characteristic. A power source is provided for activating the first and second heaters. An activation controller is provided for allowing the first and second heaters to be selectively activated by the power source.
摘要:
One embodiment of a recording head for a disk drive with a load/unload mechanism has an air bearing on one surface. The air bearing comprises a patterned set of three air bearing pads, and at least one deep pocket. The three air bearing pads are spaced apart from each other by the deep pocket, with the largest of the air bearing pads located on the leading edge, and the other pads on the trailing edge. The air bearing pads have unique geometry one of the trailing corners of the air bearing is free of all the air bearing pads. This configuration gives the air bearing superior performance characteristics over prior art designs with load/unload mechanisms, particularly in regard to contact with the disk during loading and unloading sequences.
摘要:
A lift tab for a load/unload type of data storage hard drive and a method of smoothing the lift tab. The method includes the step of striking the lift tab with short duration (e.g. 10-500 nanosecond) energy pulses to melt a thin surface layer of the lift tab. The melted layer flows under surface tension forces, smoothing out bumps and scratches. The melted layer quickly refreezes, forming an exceptionally smooth melted and refrozen spot. Preferably, the melted and refrozen spot is 0.2-10 microns deep. More preferably, the melted and refrozen spot is in the range of 1.0 to 3.0 microns thick. The lift tab can have a large number of melted and refrozen spots. The size of the melted and refrozen spots is practically limited by power available from energy sources such as lasers. Preferably, the melted and refrozen spots are at least several tens of microns in diameter. The present invention includes lift tabs having melted and refrozen spots. Also, the present invention includes head gimbal assemblies and hard drives having lift tabs with melted and refrozen spots.