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Inventor:
Parker; Michael Andrew
Address:
Fremont, CA
No. of patents:
18
Patents:












Patent Number Title Of Patent Date Issued
8268517 Photolithographic method and mask devices utilized for multiple exposures in the field of a feat September 18, 2012
A photolithographic mask set for creating a plurality of characters on a device includes a plurality of photolithographic masks, wherein each mask includes at least one mask character area and at least one mask character field area that surrounds said mask character area; wherein each sa
7919231 Photolithographic method and mask devices utilized for multiple exposures in the field of a feat April 5, 2011
A photolithographic method for forming a plurality of characters on a device utilizes a mask set that includes a plurality of photolithographic masks, wherein each mask includes at least one non-opaque mask character field area that surrounds a non-opaque mask character area. Photoresist
7839605 Electrical signal-processing device integrating a flux sensor with a flux generator in a magneti November 23, 2010
An electrical signal processing device includes at least one thin film flux generator and at least one thin film magnetic sensor. Each flux generator includes at least one conductive induction line that is connected to at least one lead of a pair of input leads, and a yoke that surro
7837837 Magnetic head having high conductivity lead structures seeded by epitaxially matched seed layer November 23, 2010
The present invention is directed towards increasing the conductivity of the electrical lead material in the read head portion of a magnetic head, such that thinner electrical leads can be fabricated while the current carrying capacity of the leads is maintained. This increase in electri
7466522 Electrical lead structures having crystalline structures that match underlying magnetic hard bia December 16, 2008
A magnetic head including an electrical lead layer that is comprised of a material having an ordered-phase crystalline structure. In a preferred embodiment, the ordered-phase crystalline structure of the electrical lead is epitaxially matched to the crystalline structure of the hard bias
7259934 Pole tip trimmed magnetic recording head with minimal edge rounding August 21, 2007
In the present method for manufacturing a magnetic write head a focused ion beam (FIB) tool is utilized to mill the side edges of a P2pole, in order to provide a narrowed track width. Prior to milling, a thin film layer of material is deposited upon the P2pole tip. The milling boxes of
7088562 Electrical lead structures having crystalline structures that match underlying magnetic hard bia August 8, 2006
A magnetic head including an electrical lead layer that is comprised of a material having an ordered crystalline structure. In a preferred embodiment, the ordered crystalline structure of the electrical lead is epitaxially matched to the crystalline structure of the hard bias layer u
7075761 Lead-defined and shaped magnetic sensor July 11, 2006
A magnetic recording transducer, useful in a magnetic data storage device, having a read element with improved magnetic stability and a narrow track width is described. An MR stripe according to the invention has a magnetic-stability inducing (MSI) shape selected from an essentially
7059768 Standards for the calibration of a vacuum thermogravimetric analyzer for determination of vapor June 13, 2006
The invention provides a set of standards for accurately calibrating a vacuum thermogravimetric analyzer (VTGA). The invention solves the problem of calibrating a VTGA by using the actual magnetic transitions and associated transition temperatures, or Curie temperatures, T.sub.C's, o
7002143 Method and apparatus for compensating waveforms, spectra, and profiles derived therefrom for eff February 21, 2006
A method and apparatus for compensating waveforms, spectra, and profiles derived therefrom for effects of drift is disclosed. The present invention removes the effects of drift from a sequential series of waveforms obtained from a waveform-source device, or spectra, from a spectromet
6882510 Low cost anti-parallel pinned spin valve (SV) and magnetic tunnel junction (MTJ) structures with April 19, 2005
The invention is a laminated antiferromagnetically coupled (AFC) structure for use in a spin valve (SV) sensor or magnetic tunnel junction (MTJ) device, having two ferromagnetic films coupled together with an improved AFC film. Particularly the AFC film comprises an alloy material select
6871998 Method for calibrating a vacuum thermogravimetric analyzer for determination of vapor pressures March 29, 2005
The invention provides a method for accurately calibrating a vacuum thermogravimetric analyzer (VTGA). The invention solves the problem of calibrating a VTGA by using the actual magnetic transitions and associated transition temperatures, or Curie temperatures, T.sub.c 's, of a set of
6853519 Magnetic head having high conductivity lead structures seeded by epitaxially matched seed layer February 8, 2005
The present invention is directed towards increasing the conductivity of the electrical lead material in the read head portion of a magnetic head, such that thinner electrical leads can be fabricated while the current carrying capacity of the leads is maintained. This increase in electri
6651313 Method for manufacturing a magnetic head November 25, 2003
In the present method for manufacturing a magnetic write head a focused ion beam (FIB) tool is utilized to mill the side edges of a P2 pole, in order to provide a narrowed track width. Prior to milling, a thin film layer of material is deposited upon the P2 pole tip. The milling boxes of
6633453 Shallow recessed T-head with reduced side-writing and method for making the same October 14, 2003
In a T-head design, it is desirable to reduce the side-writing that occurs during the write operation. The side-writing causes the track width to increase and therefore reduces the track density that can be achieved. The side-writing is caused by certain corners of the T-head producing
6521902 Process for minimizing electrostatic damage and pole tip recession of magnetoresistive magnetic February 18, 2003
The improved method for trimming a magnetic head utilizing a FIB tool includes a step of aligning the FIB tool milling boxes without imaging critical pole tip components and structure. The method includes the creation of an alignment box that is disposed in a known, fixed orientation
6016241 Magnetoresistive sensor utilizing a granular magnetoresistive layer January 18, 2000
A heterogeneous thin film structure including a discontinuous layer of ferromagnetic material deposited on an insulating substrate and overcoated with a layer of nonmagnetic electrically conductive material exhibits giant magnetoresistance in saturation fields on the order of 350 Oersted
5989728 Thin film magnetic recording medium having high coercivity November 23, 1999
An alloy of tetragonal polycrystalline structure acts as a thin film magnetic medium. The medium can be for recording or sensing magnetic transitions representative of data and is of a thickness less than about 200 .ANG., and has a coercivity in excess of about 2000 Oe. The film is in










 
 
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