公开(公告)号：US09870791B1

公开(公告)日：2018-01-16

申请号：US15489180

申请日：2017-04-17

Applicant: Seagate Technology LLC

Inventor： Victor Sapozhnikov ,  Steven P. Bozeman ,  Mohammed Shariat Ullah Patwari ,  LiWen Tan ,  Jae Young Yi ,  Eric W. Singleton

IPC: G11B5/39 ,  G11B5/11 ,  G11B5/127

CPC classification number: G11B5/3958 ,  G11B5/112 ,  G11B5/1272 ,  G11B5/3912

Abstract: A multi-sensor reader that includes a first sensor that has a first sensor stack, which includes a sensing layer that has a magnetization that changes according to an external magnetic field. The first sensor also includes a first seed layer below the first sensor stack. The multi-sensor reader also includes a second sensor stacked over the first sensor. The second sensor includes a second sensor stack, which includes a sensing layer that has a magnetization that changes according to the external magnetic field. The second sensor also includes a second seed layer below the second sensor stack. A stabilization element is included to maintain a magnetization direction of the second seed layer and to stabilize the second seed layer.

公开(公告)号：US09552834B1

公开(公告)日：2017-01-24

申请号：US14867836

申请日：2015-09-28

Applicant: Seagate Technology LLC

Inventor： Victor Boris Sapozhnikov ,  Steven P. Bozeman ,  Mohammed Shariat Ullah Patwari ,  LiWen Tan ,  Jae Young Yi ,  Eric W. Singleton

IPC: G11B5/39

CPC classification number: G11B5/3951 ,  G11B5/3912

Abstract: A multi-sensor reader that includes a first sensor that has a first sensor stack, which includes a sensing layer that has a magnetization that changes according to an external magnetic field. The first sensor also includes a first seed element below the first sensor stack. The multi-sensor reader also includes a second sensor stacked over the first sensor. The second sensor includes a second sensor stack, which includes a sensing layer that has a magnetization that changes according to the external magnetic field. The second sensor also includes a second seed element below the second sensor stack. The second seed element is structurally different from the first seed element and includes a stabilization feature.

Abstract translation: 一种多传感器读取器，其包括具有第一传感器堆叠的第一传感器，其包括具有根据外部磁场而变化的磁化的感测层。 第一传感器还包括位于第一传感器堆栈下方的第一种子元件。 多传感器读取器还包括堆叠在第一传感器上的第二传感器。 第二传感器包括第二传感器堆，其包括具有根据外部磁场而变化的磁化的感测层。 第二传感器还包括位于第二传感器堆叠下方的第二种子元件。 第二种子元件在结构上不同于第一种子元件并且包括稳定特征。