公开(公告)号：US09053721B1

公开(公告)日：2015-06-09

申请号：US14292760

申请日：2014-05-30

Applicant: HGST Netherlands B.V.

Inventor： Yongchul Ahn ,  David P. Druist ,  Zheng Gao ,  Ying Hong ,  Yunhe Huang ,  Quang Le ,  Thomas L. Leong ,  Guangli Liu ,  Xiaoyong Liu ,  David J. Seagle

IPC: G11B5/39 ,  G11B5/33 ,  G11B5/127

CPC classification number: G11B5/398 ,  G11B5/3163 ,  G11B5/3909 ,  G11B5/3912 ,  G11B2005/3996

Abstract: A magnetic read sensor having a magnetic seed layer, a pinned layer structure formed over the magnetic seed layer, a non-magnetic barrier or spacer layer formed over the pinned layer structure and a magnetic free layer structure formed over the non-magnetic barrier or spacer layer. The pinned layer has a stripe height (measured from the media facing surface) that is greater than a stripe height of the magnetic free layer structure. In addition, the magnetic seed layer structure has a stripe height (also measured from the media facing surface) that is greater than the stripe height of the magnetic pinned layer structure and the magnetic free layer structure. The stripe height of the magnetic seed layer structure can be controlled independently of the stripe heights of the magnetic pinned layer structure and the magnetic free layer structure.

Abstract translation: 具有磁性种子层的磁性读取传感器，形成在磁性种子层上的钉扎层结构，形成在被钉扎层结构之上的非磁性阻挡层或间隔层以及形成在非磁性屏障或间隔物上的无磁性层结构 层。 被钉扎层具有大于无磁性层结构的条带高度的条带高度（从介质面向表面测量）。 此外，磁性种子层结构具有大于磁性被钉扎层结构和无磁性层结构的条带高度的条纹高度（也从介质面向表面测量）。 可以独立于磁性钉扎层结构和无磁性层结构的条带高度来控制磁性种子层结构的条纹高度。

公开(公告)号：US09177588B2

公开(公告)日：2015-11-03

申请号：US14158552

申请日：2014-01-17

Applicant: HGST Netherlands B.V.

Inventor： James Mac Freitag ,  Ying Hong ,  Cherngye Hwang ,  Stefan Maat ,  Masaya Nishioka ,  David John Seagle ,  Hicham Moulay Sougrati ,  Shuxia Wang ,  Yi Zheng ,  Honglin Zhu

IPC: H01L21/00 ,  G11B5/85 ,  G11B5/855 ,  G11B5/11 ,  G11B5/60

CPC classification number: G11B5/85 ,  G11B5/11 ,  G11B5/3912 ,  G11B5/398 ,  G11B5/6082 ,  G11B5/855 ,  H01L43/08 ,  H01L43/12

Abstract: The embodiments of the present invention relate to a method for forming a magnetic read head with pinned layers extending to the ABS of the read head and magnetically coupled with an antiferromagnetic layer that is recessed in relation to the ABS of the read head. Portions of the antiferromagnetic layer and a magnetic layer that are extending to the ABS are removed, exposing a shield. A shielding material is formed on the exposed shield and a seed layer is formed on the shield and on or over a portion of the remaining antiferromagnetic layer. A pinned layer structure is formed on the seed layer and the magnetic layer.

Abstract translation: 本发明的实施例涉及一种用于形成具有延伸到读取头的ABS的固定层的磁性读取头的磁性读取头，并且与相对于读取头的ABS凹陷的反铁磁层磁耦合。 去除反铁磁层的一部分和延伸到ABS的磁性层，露出屏蔽。 屏蔽材料形成在暴露的屏蔽上，并且在屏蔽上形成种子层，并且在剩余的反铁磁性层的一部分上或上方形成种子层。 钉扎层结构形成在种子层和磁性层上。

公开(公告)号：US09042062B2

公开(公告)日：2015-05-26

申请号：US14011694

申请日：2013-08-27

Applicant: HGST Netherlands B.V.

Inventor： Ying Hong ,  Quang Le ,  Masaya Nishioka

IPC: G11B5/39 ,  G11B5/11

CPC classification number: G11B5/3912 ,  G11B5/3163 ,  G11B5/3929 ,  G11B5/398 ,  H01L43/02 ,  H01L43/08

Abstract: A magnetic read sensor having an antiferromagnetic located embedded within a magnetic shield of the sensor so that the antiferromagnetic layer can pin the magnetization of the pinned layer without contributing to read gap thickness. The sensor is configured with a pinned layer having a free layer structure located within an active area of the sensor and a pinned layer that extends beyond the free layer and active area of the sensor. The antiferromagnetic layer can be located outside of the active and exchange coupled with the extended portion of the pinned layer.

Abstract translation: 一种磁性读取传感器，其具有嵌入传感器的磁屏蔽内的反铁磁性位置，使得反铁磁性层能够固定被钉扎层的磁化，而无需读取间隙厚度。 传感器配置有具有位于传感器的有效区域内的自由层结构的钉扎层和延伸超过传感器的自由层和有效区域的钉扎层。 反铁磁层可以位于活性物质的外部并与被钉扎层的延伸部分交换。

公开(公告)号：US20150062752A1

公开(公告)日：2015-03-05

申请号：US14011694

申请日：2013-08-27

Applicant: HGST Netherlands B.V.

Inventor： Ying Hong ,  Quang Le ,  Masaya Nishioka

IPC: G11B5/11

CPC classification number: G11B5/3912 ,  G11B5/3163 ,  G11B5/3929 ,  G11B5/398 ,  H01L43/02 ,  H01L43/08

Abstract: A magnetic read sensor having an antiferromagnetic located embedded within a magnetic shield of the sensor so that the antiferromagnetic layer can pin the magnetization of the pinned layer without contributing to read gap thickness. The sensor is configured with a pinned layer having a free layer structure located within an active area of the sensor and a pinned layer that extends beyond the free layer and active area of the sensor. The antiferromagnetic layer can be located outside of the active and exchange coupled with the extended portion of the pinned layer.

Abstract translation: 一种磁性读取传感器，其具有嵌入传感器的磁屏蔽内的反铁磁性位置，使得反铁磁性层能够固定被钉扎层的磁化，而无需读取间隙厚度。 传感器配置有具有位于传感器的有效区域内的自由层结构的钉扎层和延伸超过传感器的自由层和有效区域的钉扎层。 反铁磁层可以位于活性物质的外部并与被钉扎层的延伸部分交换。

公开(公告)号：US09047893B1

公开(公告)日：2015-06-02

申请号：US14170487

申请日：2014-01-31

Applicant: HGST Netherlands B.V.

Inventor： Zheng Gao ,  Hardayal S. Gill ,  Ying Hong ,  Quang Le

IPC: G11B5/39

CPC classification number: G11B5/398 ,  G11B5/3163 ,  G11B5/39 ,  G11B5/3912 ,  H01L43/02 ,  H01L43/08

Abstract: A magnetic sensor having a first sensor stack portion that includes a free layer, non-magnetic spacer or barrier layer and a portion of a pinned layer structure. The sensor has second sensor stack portion formed over the first sensor stack portion. The second sensor stack portion include includes a second portion of the pinned layer structure and a layer of antiferromagnetic material formed over the. The first sensor stack portion is configured with a width and stripe height that define the functional width and strip height of the sensor, whereas the upper portion can be made wider and deeper without affecting sensor performance. Because the patterning of the first sensor stack portion is performed on a thinner structure than would be necessary to pattern the entire sensor stack, the patterning can be performed with smaller dimensions and increased resolution.

Abstract translation: 一种磁传感器，其具有包括自由层，非磁性间隔物或阻挡层以及被钉扎层结构的一部分的第一传感器堆叠部分。 传感器具有形成在第一传感器堆叠部分上的第二传感器堆叠部分。 第二传感器堆叠部分包括被钉扎层结构的第二部分和形成在其上的反铁磁材料层。 第一传感器堆叠部分被配置为具有限定传感器的功能宽度和条带高度的宽度和条纹高度，而上部可以变得更宽和更深，而不影响传感器性能。 由于第一传感器堆叠部分的图案化是在比整个传感器堆叠图案所需的更薄的结构上执行的，所以可以以更小的尺寸和更高的分辨率执行图案化。