专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20120240390A1 METHOD OF MANUFACTURING A MAGNETIC HEAD INCLUDING SHIELD LAYERS WHICH SURROUND A MR ELEMENT 有权
标题翻译：制造磁头的方法，其中包括围绕MR元件的屏蔽层
公开(公告)号：US20120240390A1
公开(公告)日：2012-09-27
申请号：US13052674
申请日：2011-03-21
申请人： Naomichi Degawa , Takumi Yanagisawa , Satoshi Miura , Yoshikazu Sawada , Takahiko Machita , Kenzo Makino , Takekazu Yamane , Shohei Kawasaki
发明人： Naomichi Degawa , Takumi Yanagisawa , Satoshi Miura , Yoshikazu Sawada , Takahiko Machita , Kenzo Makino , Takekazu Yamane , Shohei Kawasaki
IPC分类号： G11B5/127
CPC分类号： G11B5/3912 , G01R33/093 , G11B5/3163 , G11B5/398 , H01L43/12 , Y10T29/49021 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method of manufacturing a magnetic head that includes a magneto resistance effect (MR) element of which an electrical resistance changes according to an external magnetic field and shield layers surrounding the MR element, and that reads information of a magnetic recording medium is provided. The manufacturing method includes: a first step of forming a multilayer film including a plurality of layers configuring the MR element on a first shield layer; a second step of removing unnecessary portions of the multilayer film positioned on both sides so as to configure the MR element; a third step of forming an insulating layer on a surface exposed by removing the unnecessary portions; a fourth step of forming a soft magnetic layer covering the MR element in an integrated manner at once on both sides of the MR element and on the MR element so as to configure a second shield layer including the soft magnetic layer; and a fifth step of forming an anisotropy application layer on the second shield layer, the anisotropy application layer providing exchange anisotropy to the soft magnetic layer so as to magnetize the soft magnetic layer in a predetermined direction.
摘要翻译：提供一种制造磁头的方法，该磁头包括根据外部磁场电阻变化的磁阻效应（MR）元件和围绕MR元件的屏蔽层，并且读取磁记录介质的信息。该制造方法包括：第一步骤，在第一屏蔽层上形成包括构成MR元件的多个层的多层膜; 去除位于两侧的多层膜的不需要部分以构成MR元件的第二步骤; 第三步骤，通过去除不需要的部分在暴露的表面上形成绝缘层; 在MR元件和MR元件的两侧上一体地形成覆盖MR元件的软磁性层的第四步骤，以构成包括该软磁性层的第二屏蔽层; 以及在所述第二屏蔽层上形成各向异性施加层的第五步骤，所述各向异性施加层向所述软磁性层提供交换各向异性，以沿预定方向磁化所述软磁性层。

2. 发明授权

US08402635B2 Method of manufacturing a magnetic head including shield layers which surround a MR element 有权
标题翻译：制造包括围绕MR元件的屏蔽层的磁头的方法
公开(公告)号：US08402635B2
公开(公告)日：2013-03-26
申请号：US13052674
申请日：2011-03-21
申请人： Naomichi Degawa , Takumi Yanagisawa , Satoshi Miura , Yoshikazu Sawada , Takahiko Machita , Kenzo Makino , Takekazu Yamane , Shohei Kawasaki
发明人： Naomichi Degawa , Takumi Yanagisawa , Satoshi Miura , Yoshikazu Sawada , Takahiko Machita , Kenzo Makino , Takekazu Yamane , Shohei Kawasaki
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/3912 , G01R33/093 , G11B5/3163 , G11B5/398 , H01L43/12 , Y10T29/49021 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method of manufacturing a magnetic head, including a magneto resistance effect (MR) element that reads a magnetic recording medium, is disclosed. A multilayer film is formed on a shield layer. Unnecessary portions of the multilayer film are removed from both sides of the MR element in a first direction orthogonal to a lamination direction of the multilayer film and parallel to the MR element surface facing the magnetic recording medium. An insulating layer is formed on a surface exposed by removal of the unnecessary portions. An integrated soft magnetic layer covering both sides of the MR element in the first direction and an upper side of the MR element is formed, thereby configuring a second shield layer. An anisotropy application layer is formed on the second shield layer, thereby providing exchange anisotropy to the soft magnetic layer, and magnetizing the soft magnetic layer in a predetermined direction.
摘要翻译：公开了一种制造磁头的方法，该磁头包括读取磁记录介质的磁阻效应（MR）元件。在屏蔽层上形成多层膜。在与多层膜的层叠方向正交的第一方向上并且平行于面向磁记录介质的MR元件表面，从MR元件的两侧除去多余膜的不必要部分。在通过去除不需要的部分暴露的表面上形成绝缘层。形成了在MR元件的第一方向的两侧和MR元件的上侧覆盖的集成软磁性层，从而构成第二屏蔽层。在第二屏蔽层上形成各向异性涂布层，从而为软磁层提供交换各向异性，并在预定方向上使软磁层磁化。

3. 发明申请

US20120250189A1 MAGNETIC HEAD INCLUDING SIDE SHIELD LAYERS ON BOTH SIDES OF A MR ELEMENT 审中-公开
标题翻译：磁头包括一个MR元件两侧的侧面屏蔽层
公开(公告)号：US20120250189A1
公开(公告)日：2012-10-04
申请号：US13074272
申请日：2011-03-29
申请人： Naomichi DEGAWA , Takumi Yanagisawa , Satoshi Miura , Yoshikazu Sawada , Takahiko Machita , Kenzo Makino , Takekazu Yamane , Shohei Kawasaki
发明人： Naomichi DEGAWA , Takumi Yanagisawa , Satoshi Miura , Yoshikazu Sawada , Takahiko Machita , Kenzo Makino , Takekazu Yamane , Shohei Kawasaki
IPC分类号： G11B5/39 , G11B5/60
CPC分类号： G11B5/3912 , G01R33/093 , G11B5/3909 , G11B2005/3996
摘要： A magnetic head that reads information of a magnetic recording medium is provided. The magnetic head according to one embodiment includes: an MR element, formed with multilayer films, of which an electrical resistance changes according to an external magnetic field; a first shield layer that is disposed on a lower side in an lamination direction of the MR element; a second shield layer that is disposed on an upper side in the lamination direction of the MR element, and that applies voltage to the MR element together with the first shield layer; and side shield layers that are disposed on both sides of the MR element in a truck width direction. The side shield layers include soft magnetic layers and hard magnetic layers magnetized in a predetermined direction.
摘要翻译：提供读取磁记录介质的信息的磁头。根据一个实施例的磁头包括：由多层膜形成的MR元件，其电阻根据外部磁场而改变; 第一屏蔽层，其设置在所述MR元件的层叠方向的下侧; 第二屏蔽层，其设置在所述MR元件的层叠方向的上侧，并且与所述第一屏蔽层一起向所述MR元件施加电压; 以及侧向屏蔽层，其设置在卡车宽度方向上的MR元件的两侧。侧面屏蔽层包括在预定方向上被磁化的软磁性层和硬磁性层。

4. 发明授权

US08437106B2 Thin film magnetic head including spin-valve film with free layer magnetically connected with shield 有权
标题翻译：薄膜磁头包括具有与屏蔽层磁性连接的自由层的自旋阀膜
公开(公告)号：US08437106B2
公开(公告)日：2013-05-07
申请号：US12900845
申请日：2010-10-08
申请人： Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
发明人： Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
IPC分类号： G11B5/39
CPC分类号： G11B5/3912 , B82Y25/00 , G01R33/093 , H01F10/325 , H01F10/3254 , H01L43/08
摘要： A thin film magnetic head includes; an MR film that includes a pinned layer of which a magnetization direction is pinned, a free layer of which a magnetization direction varies, and a spacer that is disposed therebetween; a pair of shields that are disposed on both sides sandwiching the MR film in a direction orthogonal to a film surface of the MR film; and an anisotropy providing layer that provides anisotropy to a first shield so that the first shield is magnetized in a desired direction, and that is disposed on an opposite side from the MR film with respect to the first shield. The MR film includes a magnetic coupling layer that is disposed between the first shield and the free layer and that magnetically couples the first shield with the free layer.
摘要翻译：薄膜磁头包括：包括磁化方向被钉扎的钉扎层，磁化方向变化的自由层和设置在其间的间隔件的MR膜; 一对屏蔽，其设置在与MR膜的膜表面正交的方向上夹着MR膜的两侧; 以及各向异性提供层，其向第一屏蔽提供各向异性，使得第一屏蔽沿期望的方向被磁化，并且被设置在与MR膜相对于第一屏蔽的相对侧上。 MR膜包括设置在第一屏蔽和自由层之间并且将第一屏蔽与自由层磁耦合的磁耦合层。

5. 发明授权

US08462467B2 Thin film magnetic head including soft layer magnetically connected with shield 有权
标题翻译：薄膜磁头包括与屏蔽层磁性连接的软层
公开(公告)号：US08462467B2
公开(公告)日：2013-06-11
申请号：US12900879
申请日：2010-10-08
申请人： Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
发明人： Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
IPC分类号： G11B5/39
CPC分类号： G11B5/3912 , G01R33/098 , G11B5/3932 , H01F10/3254 , H01F10/3272 , H01L43/08
摘要： A thin film magnetic head includes: a magneto resistance effect film of which electrical resistance varies corresponding to an external magnetic field; a pair of shields provided on both sides in a manner of sandwiching the MR film in a direction that is orthogonal to a film surface of the MR film; an anisotropy providing layer that provides exchange anisotropy to a first shield of the pair of shields in order to magnetize the first shield in a desired direction, and that is disposed on the opposite side from the MR film with respect to the first shield; and side shields that are disposed on both sides of the MR film in a track width direction and that include soft magnetic layers magnetically connected with the first shield.
摘要翻译：薄膜磁头包括：电阻效应膜，其电阻根据外部磁场而变化; 一对屏蔽，以与MR膜的膜表面正交的方向夹持MR膜的方式设置在两侧; 各向异性提供层，其向所述一对屏蔽件的第一屏蔽提供交换各向异性，以便在所需方向上磁化所述第一屏蔽，并且相对于所述第一屏蔽设置在与所述MR膜相反的一侧上; 以及侧面屏蔽，其设置在MR膜的轨道宽度方向的两侧，并且包括与第一屏蔽件磁性连接的软磁性层。

6. 发明申请

US20120087045A1 THIN FILM MAGNETIC HEAD INCLUDING SPIN-VALVE FILM WITH FREE LAYER MAGNETICALLY CONNECTED WITH SHIELD 有权
标题翻译：薄膜磁头包括旋转阀膜，自由层磁性连接
公开(公告)号：US20120087045A1
公开(公告)日：2012-04-12
申请号：US12900845
申请日：2010-10-08
申请人： Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
发明人： Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
IPC分类号： G11B5/33 , G11B5/56 , G11B5/48
CPC分类号： G11B5/3912 , B82Y25/00 , G01R33/093 , H01F10/325 , H01F10/3254 , H01L43/08
摘要： A thin film magnetic head includes; an MR film that includes a pinned layer of which a magnetization direction is pinned, a free layer of which a magnetization direction varies, and a spacer that is disposed therebetween; a pair of shields that are disposed on both sides sandwiching the MR film in a direction orthogonal to a film surface of the MR film; and an anisotropy providing layer that provides anisotropy to a first shield so that the first shield is magnetized in a desired direction, and that is disposed on an opposite side from the MR film with respect to the first shield. The MR film includes a magnetic coupling layer that is disposed between the first shield and the free layer and that magnetically couples the first shield with the free layer.
摘要翻译：薄膜磁头包括：包括磁化方向被钉扎的钉扎层，磁化方向变化的自由层和设置在其间的间隔件的MR膜; 一对屏蔽，其设置在与MR膜的膜表面正交的方向上夹着MR膜的两侧; 以及各向异性提供层，其向第一屏蔽提供各向异性，使得第一屏蔽沿期望的方向被磁化，并且被设置在与MR膜相对于第一屏蔽的相对侧上。 MR膜包括设置在第一屏蔽和自由层之间并且将第一屏蔽与自由层磁耦合的磁耦合层。

7. 发明申请

US20120087046A1 THIN FILM MAGNETIC HEAD INCLUDING SOFT LAYER MAGNETICALLY CONNECTED WITH SHIELD 有权
标题翻译：薄膜磁头包括与屏蔽电磁连接的软层
公开(公告)号：US20120087046A1
公开(公告)日：2012-04-12
申请号：US12900879
申请日：2010-10-08
申请人： Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
发明人： Takumi Yanagisawa , Yasushi Nishioka , Takahiko Machita , Satoshi Miura , Takayasu Kanaya , Kenzo Makino , Yoshikazu Sawada , Takekazu Yamane , Naomichi Degawa , Kosuke Tanaka , Soji Koide , Daisuke Miyauchi
IPC分类号： G11B5/127 , G11B21/24 , G11B5/48
CPC分类号： G11B5/3912 , G01R33/098 , G11B5/3932 , H01F10/3254 , H01F10/3272 , H01L43/08
摘要： A thin film magnetic head includes: a magneto resistance effect film of which electrical resistance varies corresponding to an external magnetic field; a pair of shields provided on both sides in a manner of sandwiching the MR film in a direction that is orthogonal to a film surface of the MR film; an anisotropy providing layer that provides exchange anisotropy to a first shield of the pair of shields in order to magnetize the first shield in a desired direction, and that is disposed on the opposite side from the MR film with respect to the first shield; and side shields that are disposed on both sides of the MR film in a track width direction and that include soft magnetic layers magnetically connected with the first shield.
摘要翻译：薄膜磁头包括：电阻效应膜，其电阻根据外部磁场而变化; 一对屏蔽，以与MR膜的膜表面正交的方向夹持MR膜的方式设置在两侧; 各向异性提供层，其向所述一对屏蔽件的第一屏蔽提供交换各向异性，以便在所需方向上磁化所述第一屏蔽，并且相对于所述第一屏蔽设置在与所述MR膜相反的一侧上; 以及侧面屏蔽，其设置在MR膜的轨道宽度方向的两侧，并且包括与第一屏蔽件磁性连接的软磁性层。

8. 发明授权

US08369048B2 CPP-type thin film magnetic head provided with side shields including a pair of antimagnetically exchanged-coupled side shield magnetic layers 有权
标题翻译： CPP型薄膜磁头设置有包括一对防磁交换侧屏蔽磁性层的侧面屏蔽
公开(公告)号：US08369048B2
公开(公告)日：2013-02-05
申请号：US12461976
申请日：2009-08-31
申请人： Daisuke Miyauchi , Keita Kawamori , Takahiko Machita
发明人： Daisuke Miyauchi , Keita Kawamori , Takahiko Machita
IPC分类号： G11B5/33
CPC分类号： G11B5/3912 , B82Y10/00 , B82Y25/00 , G11B5/3932 , G11B5/3951 , G11B2005/3996
摘要： A thin film magnetic head includes a magnetoresistive (MR) stack disposed between first and second shield layers in a direction orthogonal to the film surface; a first exchange-coupling layer that is positioned between the MR stack and the first shield layer; a second exchange-coupling layer that is positioned between the MR stack and the second shield layer; a bias magnetic field application layer that is disposed at an opposite surface of the MR stack from an air bearing surface (ABS); and pair of side shield layers that are positioned at both sides of the MR stack with respect to a track width direction. Each of the side shield layers includes a pair of magnetic layers that are antiferromagnetically exchange-coupled through a side shield ruthenium layer.
摘要翻译：薄膜磁头包括在与膜表面正交的方向上设置在第一和第二屏蔽层之间的磁阻（MR）堆叠; 位于所述MR堆叠和所述第一屏蔽层之间的第一交换耦合层; 位于所述MR堆叠和所述第二屏蔽层之间的第二交换耦合层; 偏置磁场施加层，其设置在所述MR堆叠与空气支承表面（ABS）的相对表面处; 以及相对于轨道宽度方向位于MR堆叠的两侧的一对侧面屏蔽层。每个侧屏蔽层包括通过侧屏钌层反铁磁交换耦合的一对磁性层。

9. 发明授权

US08179642B2 Magnetoresistive effect element in CPP structure and magnetic disk device 有权
标题翻译： CPP结构和磁盘装置中的磁阻效应元件
公开(公告)号：US08179642B2
公开(公告)日：2012-05-15
申请号：US12585677
申请日：2009-09-22
申请人： Keita Kawamori , Yoshihiro Tsuchiya , Daisuke Miyauchi , Takahiko Machita
发明人： Keita Kawamori , Yoshihiro Tsuchiya , Daisuke Miyauchi , Takahiko Machita
IPC分类号： G11B5/39
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G01R33/098 , G11B5/3912 , G11B2005/3996
摘要： An MR element in a CPP structure includes an MR part configured with a nonmagnetic layer, a first ferromagnetic layer that functions as first free layer and a second ferromagnetic layer that functions as a second free layer, and first and second ferromagnetic layers are laminated to sandwich the nonmagnetic intermediate layer, and a sense current flows in a lamination direction of the MR part, an orthogonalizing bias function part, which influences a substantial orthogonalization function for magnetization directions of the first ferromagnetic layer and the second ferromagnetic layer, is formed on the rear side the MR part, side shield layers are disposed on both sides in the width direction of the MR part, the side shield layers are perpendicular magnetized layers with a magnetic shield function, and magnetization directions of the perpendicular magnetized layers are in an orthogonal direction that corresponds to the thickness direction.
摘要翻译： CPP结构中的MR元件包括配置有非磁性层的MR部件，用作第一自由层的第一铁磁层和用作第二自由层的第二铁磁层，并且第一和第二铁磁层被层压以夹持非磁性中间层和感测电流在MR部分的层叠方向上流动，影响第一铁磁层和第二铁磁层的磁化方向的实质正交函数的正交偏置功能部分形成在后部侧面屏蔽层设置在MR部分的宽度方向的两侧，侧面屏蔽层是具有磁屏蔽功能的垂直磁化层，并且垂直磁化层的磁化方向处于垂直磁化层的正交方向，对应于厚度方向。

10. 发明授权

US08089734B2 Magnetoresistive element having a pair of side shields 有权
标题翻译：具有一对侧屏蔽的磁阻元件
公开(公告)号：US08089734B2
公开(公告)日：2012-01-03
申请号：US12781297
申请日：2010-05-17
申请人： Daisuke Miyauchi , Keita Kawamori , Takahiko Machita
发明人： Daisuke Miyauchi , Keita Kawamori , Takahiko Machita
IPC分类号： G11B5/39
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , B82Y40/00 , G11B5/3912 , G11B2005/3996 , H01F10/3272 , H01F41/305 , H01L43/08 , H01L43/12
摘要： An MR element includes an MR stack disposed between first and second main shield portions, and a pair of side shields disposed on opposite sides of the MR stack in the track width direction. The first main shield portion includes a first exchange coupling shield layer that is exchange-coupled to a first antiferromagnetic layer. The second main shield portion includes a second exchange coupling shield layer that is exchange-coupled to a second antiferromagnetic layer. The MR stack includes a spacer layer, and first and second free layers with the spacer layer therebetween. The direction of magnetization of the first free layer is controlled by the first exchange coupling shield layer. The direction of magnetization of the second free layer is controlled by the second exchange coupling shield layer. Each side shield includes at least one shield-coupling magnetic layer that is in contact with and magnetically coupled to one of the first and second exchange coupling shield layers.
摘要翻译： MR元件包括设置在第一主屏蔽部分和第二主屏蔽部分之间的MR堆叠以及沿着磁道宽度方向设置在MR堆叠的相对侧上的一对侧屏蔽。第一主屏蔽部分包括与第一反铁磁层交换耦合的第一交换耦合屏蔽层。第二主屏蔽部分包括与第二反铁磁层交换耦合的第二交换耦合屏蔽层。 MR堆叠包括间隔层，以及其间具有间隔层的第一和第二自由层。第一自由层的磁化方向由第一交换耦合屏蔽层控制。第二自由层的磁化方向由第二交换耦合屏蔽层控制。每个侧屏蔽包括与第一和第二交换耦合屏蔽层中的一个接触并磁耦合的至少一个屏蔽耦合磁性层。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式