摘要:
A thin film magnetic read/write head/arm assembly and method of manufacturing the same is disclosed herein. Contact soldering of the opposite to disk side of the read/write head to a cable in laminate relationship to the suspension arm, or a polyimide strip with conductors deposited thereon provides both electrical interconnection and mechanical support. Semiconductor devices can also be intermediately soldered between the head and cable for maximum noise suppression.
摘要:
A magnetic recording disk is formed on a rigid aluminum substrate coated with a polymeric dielectric layer. A thin film metallic position-indicating track is applied to the upper surface of the dielectric layer. The dielectric material is coated with a magnetic recording medium. A thin film of aluminum forms the patterned capacitive and optically reflective track. The dielectric layer is composed of a very similar material to the matrix material in the magnetic recording medium.The disk can be flexible or floppy and it is not necessary to have the extra dielectric layer in such a case, where the substrate is a dielectric.
摘要:
A method for high resolution maskless plating with an immersion, exchange or like plating bath is described. Preferential plating results from exposing those regions where plating is sought to an energy beam to increase the plating rate and the resulting plating thickness is several orders of magnitude greater than is possible by standard immersion techniques.
摘要:
A method for high resolution maskless chemical and electrochemical machining is described. Preferential etching results from exposing those regions where machining is sought to an energy beam. Such exposures can increase the ething rate in the case of electrochemical machining by a factor of 10.sup.3 to 10.sup.4. Such enhancement is sufficient to make masking unnecessary.
摘要:
A positive resist image is produced by exposing, to radiation in a predetermined pattern, a polymeric material containing polymerized alkyl methacrylate units and polymerized monoethylenically unsaturated acid units. The exposed and unexposed areas are distinguished by their different respective abilities to be swelled in an appropriate swelling agent, and the swelled areas are removed by dispersal in a nonsolvent liquid.
摘要:
A thin film inductor having yokes, one or more of which is laminated, and one or more conductors passing between the yokes. The laminated yoke or yokes help reduce eddy currents and/or hysteresis losses.
摘要:
A thin film coupled inductor, a thin film spiral inductor, and a system that includes an electronic device and a power supply or power converter incorporating one or more such inductors. A thin film coupled inductor includes a wafer substrate; a bottom yoke comprising a magnetic material above the wafer substrate; a first insulating layer above the bottom yoke; a first conductor above the bottom yoke and separated therefrom by the first insulating layer; a second insulating layer above the first conductor; a second conductor above the second insulating layer; a third insulating layer above the second conductor; and a non-planar top yoke above the third insulating layer, the top yoke comprising a magnetic material.
摘要:
A thin film inductor having yokes, one or more of which is laminated, and one or more conductors passing between the yokes. The laminated yoke or yokes help reduce eddy currents and/or hysteresis losses.
摘要:
In one embodiment, the invention is a method and apparatus for chip cooling. One embodiment of an apparatus for cooling a heat-generating device includes an inlet for receiving a fluid, a manifold comprising a plurality of apertures formed therein for decreasing the pressure of the fluid from a first pressure by adiabatic expansion for impinging the fluid on the heat-generating device once the pressure of the fluid is decreased from the first pressure.
摘要:
A magnetic head in one embodiment includes a bottom pole; a top pole positioned above a plane extending through the bottom pole and parallel to a plane of deposition of the bottom pole, wherein the top pole is at least partially offset from the bottom pole in a direction parallel to a plane of deposition of the top pole; a first write gap in the top pole; and a first coil for generating a magnetic flux across the first write gap. A method in one embodiment includes forming a bottom pole; forming a top pole above a plane extending through the bottom pole and parallel to a plane of deposition of the bottom pole, wherein the top pole is at least partially offset from the bottom pole in a direction parallel to a plane of deposition of the top pole, wherein at least one write gap is formed in the top pole; forming side poles for coupling the top and bottom poles; and forming a first coil for generating a magnetic flux across the first write gap.