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公开(公告)号：US20180308515A1
公开(公告)日：2018-10-25
申请号：US16021731
申请日：2018-06-28
Applicant: Seagate Technology LLC
Inventor： Liwen Tan , ZhiGuo Ge , Shaun E. McKinlay , Jae-Young Yi , Stacey C. Wakeham
CPC classification number: G11B5/3912 , G11B5/3163
Abstract: A data reader may have a magnetoresistive stack with a magnetically free layer decoupled from a first shield by a cap. The cap can have one or more sub-layers respectively configured with a thickness of 4 nm or less as measured parallel to a longitudinal axis of the magnetoresistive stack on an air bearing surface.
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公开(公告)号：US10354682B2
公开(公告)日：2019-07-16
申请号：US16021731
申请日：2018-06-28
Applicant: Seagate Technology LLC
Inventor： Liwen Tan , ZhiGuo Ge , Shaun E. McKinlay , Jae-Young Yi , Stacey C. Wakeham
Abstract: A data reader may have a magnetoresistive stack with a magnetically free layer decoupled from a first shield by a cap. The cap can have one or more sub-layers respectively configured with a thickness of 4 nm or less as measured parallel to a longitudinal axis of the magnetoresistive stack on an air bearing surface.
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公开(公告)号：US10297279B1
公开(公告)日：2019-05-21
申请号：US15949302
申请日：2018-04-10
Applicant: Seagate Technology LLC
Inventor： Zhiguo Ge , Shaun E. Mckinlay , Stacey C. Wakeham
Abstract: Methods of planarizing materials, such as where surface topographies are created as part of a thin film device fabrication process are described. These methods find particular application in the creation of nano-sized devices, where surface topographical features can be effectively planarized without adversely creating other surface topographies and/or causing deleterious effects a material junctions. Methods include the step of depositing a sacrificial layer overlying at least a portion of a first material layer and at least a portion of a backfilled second material at a junction between the first and second materials. The sacrificial layer substantially retains the surface topography of the microelectronic device. Chemical-mechanical planarization is performed on a surface of the sacrificial layer but leaving a remainder portion of the thickness of the sacrificial layer. Then, physical or dry chemical process is conducted for removing the remainder of the sacrificial layer and at least a portion of at least one of the first and second materials.
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公开(公告)号：US20170221506A1
公开(公告)日：2017-08-03
申请号：US15013158
申请日：2016-02-02
Applicant: Seagate Technology LLC
Inventor： Liwen Tan , ZhiGuo Ge , Shaun E. McKinlay , Jae-Young Yi , Stacey C. Wakeham
CPC classification number: G11B5/3912 , G11B5/3163
Abstract: A data reader may have a magnetoresistive stack with a magnetically free layer decoupled from a first shield by a cap. The cap can have one or more sub-layers respectively configured with a thickness of 4 nm or less as measured parallel to a longitudinal axis of the magnetoresistive stack on an air bearing surface.
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