Patents by Inventor Christian Rene Bonhote

Christian Rene Bonhote has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9236260
    Abstract: An integrated circuit has a doped silicon semiconductor with regions of insulators and bare silicon. The bare silicon regions are isolated from other bare silicon regions. A semiconductor device on the doped silicon semiconductor has at least two electrical connections to form regions of patterned metal. A metal is electroplated directly on each of the regions of patterned metal to form plated connections without a seed layer. A self-aligned silicide is located under each plated connection, formed by annealing, for the regions of plated metal on bare silicon.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: January 12, 2016
    Assignee: HGST Netherlands B.V.
    Inventors: Christian René Bonhôte, Jeffrey S. Lille, Ricardo Ruiz, Georges Gibran Siddiqi
  • Patent number: 8797685
    Abstract: A magnetic write head for data recording having a magnetic write pole with a stepped magnetic shell structure that defines a secondary flare point. The secondary flare point defined by the magnetic shell portion can be more tightly controlled with respect to its distance from the air bearing surface (ABS) of the write head than can a traditional flare point that is photolithographically on the main pole structure. This allows the effective flare point of the write head to be moved much closer to the ABS than would otherwise be possible using currently available tooling and photolithography techniques. The write head also includes a non-magnetic spacer layer formed over the magnetic shell structure that is recessed from the ABS by a distance that is greater than that of the magnetic shell portion. A magnetic shield is formed over the magnetic shell and non-magnetic spacer.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 5, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Christian Rene Bonhote, Jeffrey S. Lille, Scott Arthur MacDonald, Xhavin Sinha, Petrus Antonius Van Der Heijden
  • Patent number: 8631561
    Abstract: The present invention generally relates to fabricating a bond pad for electrically connecting a laser diode to a slider and a TAR head in a HDD. The bond pad is deposited on a surface of the head that is perpendicular to the air bearing surface (ABS). The head is diced and lapped to expose the bond pad on a top surface of the head and mounted on a slider. The laser diode and a sub-mount may be coupled to the top surface of the slider—i.e., the surface opposite the ABS—by connecting to the bond pads. Specifically, both the laser diode and the sub-mount have electrodes thereon that are perpendicular to the bond pads. Conductive bonding material is used to bond the laser diode and the sub-mount to the bond pads.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: January 21, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Christian René Bonhôte, Linden James Crawforth, Toshiki Hirano, Fu-Ying Huang, Neil Leslie Robertson, Barry Cushing Stipe
  • Patent number: 8634162
    Abstract: A magnetic write head for data recording having a magnetic write pole with a stepped magnetic shell structure that defines a secondary flare point. The secondary flare point defined by the magnetic shell portion can be more tightly controlled with respect to its distance from the air bearing surface (ABS) of the write head than can a traditional flare point that is photolithographically on the main pole structure. This allows the effective flare point of the write head to be moved much closer to the ABS than would otherwise be possible using currently available tooling and photolithography techniques. The write head may also include a magnetic trailing shield that wraps around the main pole portion. The trailing shield can have a hack edge defining a trailing shield throat height that is either between the secondary flare point or coincident or behind the secondary flare point, depending on design requirements.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: January 21, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Christian Rene Bonhote, Thomas Dudley Boone, Jr., Quang Le, Jui-Lung Li, Jeffrey S. Lille, Scott Arthur MacDonald, Neil Leslie Robertson, Xhavin Sinha, Petrus Antonius Van Der Heijden
  • Patent number: 8512583
    Abstract: A method for making a master disk to be used in the nanoimprinting process to make patterned-media disks uses an electrically conductive substrate and guided self-assembly of a block copolymer to form patterns of generally radial lines and/or generally concentric rings of one of the block copolymer components. A metal is electroplated onto the substrate in the regions not protected by the lines and/or rings. After removal of the block copolymer component, the remaining metal pattern is used as an etch mask to fabricate either the final master disk or two separate molds that are then used to fabricate the master disk.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: August 20, 2013
    Assignee: HGST Netherlands B.V.
    Inventors: Christian Rene′ Bonhote, Jeffrey S. Lille, Ricardo Ruiz, Georges Gibran Siddiqi
  • Publication number: 20130154020
    Abstract: An integrated circuit has a doped silicon semiconductor with regions of insulators and bare silicon. The bare silicon regions are isolated from other bare silicon regions. A semiconductor device on the doped silicon semiconductor has at least two electrical connections to form regions of patterned metal. A metal is electroplated directly on each of the regions of patterned metal to form plated connections without a seed layer. A self-aligned silicide is located under each plated connection, formed by annealing, for the regions of plated metal on bare silicon.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 20, 2013
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Christian René Bonhôte, Jeffrey S. Lille, Ricardo Ruiz, Georges Gibran Siddiqi
  • Publication number: 20130133182
    Abstract: The present invention generally relates to fabricating a bond pad for electrically connecting a laser diode to a slider and a TAR head in a HDD. The bond pad is deposited on a surface of the head that is perpendicular to the air bearing surface (ABS). The head is diced and lapped to expose the bond pad on a top surface of the head and mounted on a slider. The laser diode and a sub-mount may be coupled to the top surface of the slider—i.e., the surface opposite the ABS—by connecting to the bond pads. Specifically, both the laser diode and the sub-mount have electrodes thereon that are perpendicular to the bond pads. Conductive bonding material is used to bond the laser diode and the sub-mount to the bond pads.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Inventors: Christian René Bonhôte, Linden James Crawforth, Toshiki Hirano, Fu-Ying Huang, Neil Leslie Robertson, Barry Cushing Stipe
  • Publication number: 20130068719
    Abstract: A method for making a master disk to be used in the nanoimprinting process to make patterned-media disks uses an electrically conductive substrate and guided self-assembly of a block copolymer to form patterns of generally radial lines and/or generally concentric rings of one of the block copolymer components. A metal is electroplated onto the substrate in the regions not protected by the lines and/or rings. After removal of the block copolymer component, the remaining metal pattern is used as an etch mask to fabricate either the final master disk or two separate molds that are then used to fabricate the master disk.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 21, 2013
    Inventors: Christian Rene' Bonhote, Jeffrey S. Lille, Ricardo Ruiz, Georges Gibran Siddiqi
  • Patent number: 8259413
    Abstract: A system according to one embodiment includes a write pole having an end region positioned towards an air bearing surface, a first flare point, and a second flare point positioned between the air bearing surface and the first flare point; and a shield positioned above the write pole, wherein a cross sectional area of the write pole at a point between the first and second flare points along a plane passing through the write pole and oriented about parallel to the air bearing surface is greater than a cross sectional area of the end region of the write pole along a plane oriented parallel to the plane passing through the second flare point. Additional systems and methods are also presented.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: September 4, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Christian René Bonhôte, Quang Le, Jeffrey S. Lille, Vladimir Nikitin, Aron Pentek
  • Patent number: 8230582
    Abstract: One preferred method for use in making a device structure with use of the resist channel shrinking solution includes the steps of forming a first pedestal portion within a channel of a patterned resist; applying a resist channel shrinking solution comprising a resist channel shrinking film and corrosion inhibitors within the channel of the patterned resist; baking the resist channel shrinking solution over the patterned resist to thereby reduce a width of the channel of the patterned resist; removing the resist channel shrinking solution; and forming a second pedestal portion within the reduced-width channel of the patterned resist. Advantageously, the oxide layer and the corrosion inhibitors of the resist channel shrinking solution reduce corrosion in the pedestal during the act of baking the resist channel shrinking solution.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: July 31, 2012
    Assignee: HGST Netherlands B.V.
    Inventors: Christian Rene Bonhote, Jila Tabib, Dennis Richard Mckean, Daniel Wayne Bedell, Jyh-Shuey Lo, Heiu Lam, Kim Y Lee
  • Publication number: 20120164486
    Abstract: A method and apparatus for a high-moment magnetic material used in a write head deposited on a gap layer that was grown using a nickel-chromium seed layer. The nickel-chromium seed layer provides the correct crystallographic orientation for both the nonmagnetic gap layer and the high-moment magnetic material such that the high-moment magnetic material has soft-magnetic properties and is useful as either a main pole or as shield layer in a write head. Moreover, the nickel-chronium seed layer, which may be exposed on the air bearing surface (ABS) of the write head, has an etch rate similar to other metals found in the ABS, thereby avoiding pole tip protrusion during later processing.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 28, 2012
    Inventors: Christian René Bonhôte, Stefan Maat, Ning Shi, Brian R. York
  • Patent number: 8161627
    Abstract: A method in one embodiment includes forming an electric lapping guide layer; forming a write pole; forming a first gap layer over the write pole; masking a portion of the first gap layer for defining a window over the write pole and at least a portion of the electric lapping guide layer; and forming a bump over the write pole in the window. Additional methods and systems are presented.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: April 24, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Christian Rene Bonhote, Jeffrey S. Lille, Vladimir Nikitin, Aron Pentek, Neil Leslie Robertson
  • Patent number: 8048281
    Abstract: Methods for fabricating thin film magnetic head coil structures are disclosed. The methods disclose deposition of a first thick seed layer, followed by deposition of an ultra-thin second seed layer. Coil structures having sub-micron pitch and high aspect ratios are deposited on the second ultra-thin seed layer, which is removed from between the coil windings via an isotropic etch process such as wet etching or RIE. Subsequent to selective removal of the ultra-thin second seed layer, the first thick seed layer is utilized to deposit pole and backgap structures, eliminating the need to deposit (and remove) a subsequent seed layer on the coil structure.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: November 1, 2011
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Christian Rene Bonhote, Quang Le, Ihavin Sinha
  • Patent number: 8028400
    Abstract: A method for forming a tapered, electroplated structure. The method involves forming a first mask structure having an opening. A shrink material is deposited into the opening, such that the thickness of the shrink material is less than the thickness of the first mask structure. The first mask structure and the shrink material are then heated causing the sides of the opening in the mask structure to bulge inward. The shrink material is then removed, and a first electrically conductive material can then be electroplated into the opening to a thickness that is much less than the thickness of the mask. The bulbous shaped of the deformed photoresist mask forms a taper on the first electrically conductive material. The first mask can then be removed and a second electrically conductive material can be electroplated over the first electrically conductive material.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: October 4, 2011
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Christian Rene Bonhote, Jeffrey S. Lille, Scott Arthur MacDonald
  • Patent number: 8021535
    Abstract: Methods and structures for electroplating shield structures for perpendicular thin film write poles having ultra thin non-magnetic top gaps on the order of a few nanometers are disclosed. Ultra thin, conductive seed layers serve a dual purpose as both plating seed layer and non-magnetic top gap for the write pole. Due to reduced current carrying capacity of ultra thin seed layers, an additional thick seed layer is also employed to aid delivering plating current to regions near the pole.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: September 20, 2011
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Christian Rene Bonhote, Quang Le, Xhavin Sinha
  • Patent number: 7950137
    Abstract: A method for manufacturing a write pole for perpendicular magnetic recording for accurately defining a side shield throat height and write pole flare point. The magnetic structure includes a write pole portion and first and second side shield portions. The side shields portions are magnetically connected with the write pole portion in a region in front of an intended air bearing surface plane (e.g. in the direction from which lapping will progress). The side shields portions are each separated from the write pole portion in a region behind the intended air bearing surface plane by notches that terminate at a desired location relative to the intended air bearing surface plane and which open up in a region behind the intended air bearing surface plane.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: May 31, 2011
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Christian Rene Bonhote, Thomas Dudley Boon, Jr., Ming Jiang, Jordan Asher Katine, Quang Le, Yinshi Liu, Xhavin Sinha, Sue Siyang Zhang, Yi Zheng
  • Patent number: 7748104
    Abstract: A method and structure for reducing corrosion during the manufacture of perpendicular write heads is disclosed. Auxiliary pole structures (otherwise known as trailing shields and wrap around shields) are susceptible to corrosion due to their iron containing composition and small dimensions. The impact of corrosion can be reduced by utilizing a gap material comprising an upper surface of noble metals, which extends from underneath the auxiliary pole and is exposed to the same corrosive environment during processing. The area of the exposed gap material is limited to optimize corrosion protection.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: July 6, 2010
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Christian Rene Bonhote, Quang Le, Jui-Lung Li, Scott Arthur MacDonald
  • Publication number: 20100165513
    Abstract: A system according to one embodiment includes a write pole having an end region positioned towards an air bearing surface, a first flare point, and a second flare point positioned between the air bearing surface and the first flare point; and a shield positioned above the write pole, wherein a cross sectional area of the write pole at a point between the first and second flare points along a plane passing through the write pole and oriented about parallel to the air bearing surface is greater than a cross sectional area of the end region of the write pole along a plane oriented parallel to the plane passing through the second flare point. Additional systems and methods are also presented.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Inventors: Christian Rene Bonhote, Quang Le, Jeffrey S. Lille, Vladimir Nikitin, Aron Pentek
  • Publication number: 20100128392
    Abstract: A magnetic write head for data recording having a magnetic write pole with a stepped magnetic shell structure that defines a secondary flare point. The secondary flare point defined by the magnetic shell portion can be more tightly controlled with respect to its distance from the air bearing surface (ABS) of the write head than can a traditional flare point that is photolithographically on the main pole structure. This allows the effective flare point of the write head to be moved much closer to the ABS than would otherwise be possible using currently available tooling and photolithography techniques. The write head also includes a non-magnetic spacer layer formed over the magnetic shell structure and a trailing magnetic shield, a portion of which is formed over the non-magnetic spacer.
    Type: Application
    Filed: December 23, 2009
    Publication date: May 27, 2010
    Inventors: Christian Rene Bonhote, Thomas Dudley Boone, JR., Quang Le, Jui-Lung Li, Jeffrey S. Lille, Scott Arthur MacDonald, Neil Leslie Robertson, Xhavin Sinha, Petrus Antonius Van Der Heijden
  • Publication number: 20100126001
    Abstract: A method for self aligning a lapping guide with a structure of a write pole. A write pole is formed over a substrate and an electrically conductive material lapping guide material is deposited in a location that is removed from the write pole. A mask is then formed over a portion of the write pole and a portion of the electrically conductive material. A material removal process such as reactive ion etching can then be performed to remove a portion of the magnetic material that is not protected by the mask structure. An magnetic material is then electroplated over the write pole with the write pole, with the mask still in place. In this way, the electroplated material has an edge that is self aligned with an edge of the electrically conductive lapping guide material, both being defined by the same mask structure.
    Type: Application
    Filed: December 23, 2009
    Publication date: May 27, 2010
    Inventors: Christian Rene Bonhote, Thomas Budley Boone, JR., Quang Le, Jui-Lung Li, Jeffrey S. Lille, Scott Arthur MacDonald, Neil Leslie Robertson, Xhavin Sinha, Petrus Antonius Van Der Heijden