Patent number 8611043 is assigned to
The following quote was obtained by the news editors from the background information supplied by the inventors: "The present invention relates to data storage systems, and more particularly, this invention relates to magnetic heads.
"In magnetic storage systems, data is read from and written onto magnetic recording media utilizing magnetic transducers commonly. Data is written on the magnetic recording media by moving a magnetic recording transducer to a position over the media where the data is to be stored. The magnetic recording transducer then generates a magnetic field, which encodes the data into the magnetic media. Data is read from the media by similarly positioning the magnetic read transducer and then sensing the magnetic field of the magnetic media. Read and write operations may be independently synchronized with the movement of the media to ensure that the data can be read from and written to the desired location on the media.
"An important and continuing goal in the data storage industry is that of increasing the density of data stored on a medium. For tape storage systems, that goal has led to increasing the track and linear bit density on recording tape, and decreasing the thickness of the magnetic tape medium. However, the development of small footprint, higher performance tape drive systems has created various problems in the design of a tape head assembly for use in such systems.
"In a tape drive system, magnetic tape is moved over the surface of the tape head at high speed. Usually the tape head is designed to minimize the spacing between the head and the tape. The spacing between the magnetic head and the magnetic tape is crucial so that the recording gaps of the transducers, which are the source of the magnetic recording flux, are in near contact with the tape to effect writing sharp transitions, and so that the read element is in near contact with the tape to provide effective coupling of the magnetic field from the tape to the read element."
In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventors' summary information for this patent: "A magnetic head according to one embodiment includes a substrate; an array of transducers formed on the substrate, wherein the transducers and substrate form portions of a magnetic media facing surface; and an at least partially polycrystalline dielectric layer on the media facing surface, wherein the at least partially polycrystalline dielectric layer is on a magnetic film of at least one of the transducers in the array.
"A magnetic head according to one embodiment includes a substrate having a media facing surface; an array of transducers formed on the substrate, at least some layers of the transducers being recessed from the media bearing surface; and an at least partially polycrystalline dielectric layer above the array of transducers, wherein portions of the transducers adjacent the at least partially polycrystalline dielectric layer have iron oxide and reaction products of a thermite-like reaction.
"A method for forming an at least partially polycrystalline dielectric layer on a media facing surface of a magnetic head according to one embodiment includes forming an at least partially polycrystalline dielectric layer on an array of transducers of a magnetic head, wherein an oxide layer is formed above at least some of the magnetic layers before and/or during the forming of the at least partially polycrystalline dielectric layer.
"Any of these embodiments may be implemented in a magnetic data storage system such as a tape drive system, which may include a magnetic head, a drive mechanism for passing a magnetic medium (e.g., recording tape) over the magnetic head, and a controller electrically coupled to the magnetic head.
"Other aspects and embodiments of the present invention will become apparent from the following detailed description, which, when taken in conjunction with the drawings, illustrate by way of example the principles of the invention."
URL and more information on this patent, see: Biskeborn, Robert G.; Lo, Calvin S.; Topuria, Teya. Magnetic Head Having Polycrystalline Coating. U.S. Patent Number 8611043, filed
Keywords for this news article include: Information Technology, Information and
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