Patents by Inventor Carolyn Pitcher Van Dorn
Carolyn Pitcher Van Dorn 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).
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Patent number: 9542961Abstract: Tolerances for manufacturing reader structures for transducer heads continue to grow smaller and storage density in corresponding storage media increases. Reader stop layers may be utilized during manufacturing of reader structures to protect various layers of the reader structure from recession and/or scratches while processing other non-protected layers of the reader structure. For example, the stop layer may have a very low polish rate during mechanical or chemical-mechanical polishing. Surrounding areas may be significantly polished while a structure protected by a stop layer with a very low polish rate is substantially unaffected. The stop layer may then be removed via etching, for example, after the mechanical or chemical-mechanical polishing is completed.Type: GrantFiled: June 19, 2014Date of Patent: January 10, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Carolyn Pitcher Van Dorn, Thomas Roy Boonstra, Eric Walter Singleton, Shaun Eric McKinlay
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Publication number: 20160293186Abstract: Tolerances for manufacturing reader structures for transducer heads continue to grow smaller and storage density in corresponding storage media increases. Reader stop layers may be utilized during manufacturing of reader structures to protect various layers of the reader structure from recession and/or scratches while processing other non-protected layers of the reader structure. For example, the stop layer may have a very low polish rate during mechanical or chemical-mechanical polishing. Surrounding areas may be significantly polished while a structure protected by a stop layer with a very low polish rate is substantially unaffected. The stop layer may then be removed via etching, for example, after the mechanical or chemical-mechanical polishing is completed.Type: ApplicationFiled: June 19, 2014Publication date: October 6, 2016Inventors: Carolyn Pitcher Van Dorn, Thomas Roy Boonstra, Eric Walter Singleton, Shaun Eric McKinlay
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Patent number: 9426886Abstract: The formation of substrate electrical connections on thin film heads is one source of resulting surface topography. In accordance with one implementation, such topography can be reduced by a process that includes depositing a first layer of basecoat, creating electrical recessed vias in one or more plating processes, and depositing a second layer of basecoat on top of the electrical vias and on top of the first layer of basecoat. In one implementation, the first and second layers of basecoat have a combined height that is substantially equal to the height of the electrical recessed vias. In one implementation, the resulting topographical features are small enough that they can be planarized without creating a lack of uniformity in the total basecoat thickness across the wafer.Type: GrantFiled: January 30, 2013Date of Patent: August 23, 2016Assignee: SEAGATE TECHNOLOGY LLCInventors: Carolyn Pitcher Van Dorn, Lily Horng Youtt, Daniel Boyd Sullivan
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Patent number: 9030782Abstract: A data reader and associated method of making are generally provided. A data reader capable of sensing adjacent data bits may be configured at least with a magnetic stack disposed between first and second side shields. Each side shield may have a polish stop layer that is tuned to provide a first predetermined polish rate.Type: GrantFiled: March 13, 2013Date of Patent: May 12, 2015Assignee: Seagate Technology LLCInventors: Shaun Eric McKinlay, Eric W. Singleton, Carolyn Pitcher Van Dorn, Levent Colak, Thu-Van Thi Nguyen
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Publication number: 20140302345Abstract: Tolerances for manufacturing reader structures for transducer heads continue to grow smaller and storage density in corresponding storage media increases. Reader stop layers may be utilized during manufacturing of reader structures to protect various layers of the reader structure from recession and/or scratches while processing other non-protected layers of the reader structure. For example, the stop layer may have a very low polish rate during mechanical or chemical-mechanical polishing. Surrounding areas may be significantly polished while a structure protected by a stop layer with a very low polish rate is substantially unaffected. The stop layer may then be removed via etching, for example, after the mechanical or chemical-mechanical polishing is completed.Type: ApplicationFiled: June 19, 2014Publication date: October 9, 2014Inventors: Carolyn Pitcher Van Dorn, Thomas Roy Boonstra, Eric Walter Singleton, Shaun Eric McKinlay
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Publication number: 20140268422Abstract: A data reader and associated method of making are generally provided. A data reader capable of sensing adjacent data bits may be configured at least with a magnetic stack disposed between first and second side shields. Each side shield may have a polish stop layer that is tuned to provide a first predetermined polish rate.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Applicant: Seagate Technology LLCInventors: Shaun Eric McKinlay, Eric W. Singleton, Carolyn Pitcher Van Dorn, Levent Colak, Thu-Van Thi Nguyen
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Publication number: 20140209368Abstract: The formation of substrate electrical connections on thin film heads is one source of resulting surface topography. In accordance with one implementation, such topography can be reduced by a process that includes depositing a first layer of basecoat, creating electrical recessed vias in one or more plating processes, and depositing a second layer of basecoat on top of the electrical vias and on top of the first layer of basecoat. In one implementation, the first and second layers of basecoat have a combined height that is substantially equal to the height of the electrical recessed vias. In one implementation, the resulting topographical features are small enough that they can be planarized without creating a lack of uniformity in the total basecoat thickness across the wafer.Type: ApplicationFiled: January 30, 2013Publication date: July 31, 2014Applicant: SEAGATE TECHNOLOGY LLCInventors: Carolyn Pitcher Van Dorn, Lily Horng Youtt, Daniel Boyd Sullivan
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Patent number: 8771847Abstract: Tolerances for manufacturing reader structures for transducer heads continue to grow smaller and storage density in corresponding storage media increases. Reader stop layers may be utilized during manufacturing of reader structures to protect various layers of the reader structure from recession and/or scratches while processing other non-protected layers of the reader structure. For example, the stop layer may have a very low polish rate during mechanical or chemical-mechanical polishing. Surrounding areas may be significantly polished while a structure protected by a stop layer with a very low polish rate is substantially unaffected. The stop layer may then be removed via etching, for example, after the mechanical or chemical-mechanical polishing is completed.Type: GrantFiled: October 14, 2011Date of Patent: July 8, 2014Assignee: Seagate TechnologyInventors: Carolyn Pitcher Van Dorn, Thomas Roy Boonstra, Eric Walter Singleton, Shaun Eric McKinlay
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Publication number: 20130095349Abstract: Tolerances for manufacturing reader structures for transducer heads continue to grow smaller and storage density in corresponding storage media increases. Reader stop layers may be utilized during manufacturing of reader structures to protect various layers of the reader structure from recession and/or scratches while processing other non-protected layers of the reader structure. For example, the stop layer may have a very low polish rate during mechanical or chemical-mechanical polishing. Surrounding areas may be significantly polished while a structure protected by a stop layer with a very low polish rate is substantially unaffected. The stop layer may then be removed via etching, for example, after the mechanical or chemical-mechanical polishing is completed.Type: ApplicationFiled: October 14, 2011Publication date: April 18, 2013Applicant: SEAGATE TECHNOLOGY LLCInventors: Carolyn Pitcher Van Dorn, Thomas Roy Boonstra, Eric Walter Singleton, Shaun Eric McKinlay
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Patent number: 8390963Abstract: A magnetoresistive read sensor is described. The sensor is a magnetically responsive stack positioned between top and bottom electrodes on an air bearing surface. Current in the sensor is confined to regions close to the air bearing surface by a first multilayer insulator structure between the stack and at least one electrode to enhance reader sensitivity.Type: GrantFiled: April 25, 2011Date of Patent: March 5, 2013Assignee: Seagate Technology LLCInventors: Dimitar V. Dimitrov, Dian Song, Thu Van Nguyen, Carolyn Pitcher Van Dorn
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Publication number: 20120268847Abstract: A magnetoresistive read sensor is described. The sensor is a magnetically responsive stack positioned between top and bottom electrodes on an air bearing surface. Current in the sensor is confined to regions close to the air bearing surface by a first multilayer insulator structure between the stack and at least one electrode to enhance reader sensitivity.Type: ApplicationFiled: April 25, 2011Publication date: October 25, 2012Applicant: SEAGATE TECHNOLOGY LLCInventors: Dimitar V. Dimitrov, Dian Song, Thu Van Nguyen, Carolyn Pitcher Van Dorn