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1. 发明授权

US08537505B2 Magnetoresistive effect head having a free layer and a magnetic domain control layer that applies a magnetic field more strongly in an upper part of the free layer 有权
标题翻译：具有自由层和磁畴控制层的磁阻效应头，其在自由层的上部更强地施加磁场
公开(公告)号：US08537505B2
公开(公告)日：2013-09-17
申请号：US12784405
申请日：2010-05-20
申请人： Masato Shiimoto , Kan Yasui , Nobuo Yoshida , Hiroyuki Takazawa
发明人： Masato Shiimoto , Kan Yasui , Nobuo Yoshida , Hiroyuki Takazawa
IPC分类号： G11B5/39 , G11B5/11
CPC分类号： G11B5/3932 , B82Y25/00 , G01R33/093 , G01R33/098 , H01L43/08 , H01L43/10
摘要： According to one embodiment, a magnetoresistive effect head includes a lower magnetic shield provided on a substrate, a magnetoresistive effect film laminated from a pinned layer with a pinned direction of magnetization, an intermediate layer, a free layer having a varying direction of magnetization controlled by an applied external magnetic field, a magnetic domain control layer formed with an intervening insulation layer on both sides in a track width direction of the magnetoresistive effect film, an upper magnetic shield, and electrodes for directing sense current flow in a direction perpendicular to a film surface of the magnetoresistive effect film, wherein a magnetic field applied by the magnetic domain control layer to a region away from an ABS of the free layer is at least 1.4 times larger than a magnetic field applied by the magnetic domain control layer to a region near the ABS of the free layer.
摘要翻译：根据一个实施例，磁阻效应头包括设置在基板上的下磁屏蔽，从具有钉扎方向的钉扎层层压的磁阻效应膜，中间层，具有变化的磁化方向的自由层，施加的外部磁场，在磁阻效应膜的磁道宽度方向上在两侧形成有中间绝缘层的磁畴控制层，上磁屏蔽和用于引导垂直于膜的方向的感测电流的电极磁阻效应膜的表面，其中由磁畴控制层施加到远离自由层的ABS的区域的磁场比由磁畴控制层施加到接近的区域的磁场的至少大1.4倍 ABS的自由层。

2. 发明申请

US20100302688A1 Magnetoresistive Effect Head and Magnetic Recording/Playback Device 有权
标题翻译：磁阻效应头和磁记录/播放装置
公开(公告)号：US20100302688A1
公开(公告)日：2010-12-02
申请号：US12784405
申请日：2010-05-20
申请人： Masato Shiimoto , Kan Yasui , Nobuo Yoshida , Hiroyuki Takazawa
发明人： Masato Shiimoto , Kan Yasui , Nobuo Yoshida , Hiroyuki Takazawa
IPC分类号： G11B5/127
CPC分类号： G11B5/3932 , B82Y25/00 , G01R33/093 , G01R33/098 , H01L43/08 , H01L43/10
摘要： According to one embodiment, a magnetoresistive effect head includes a lower magnetic shield provided on a substrate, a magnetoresistive effect film laminated from a pinned layer with a pinned direction of magnetization, an intermediate layer, a free layer having a varying direction of magnetization controlled by an applied external magnetic field, a magnetic domain control layer formed with an intervening insulation layer on both sides in a track width direction of the magnetoresistive effect film, an upper magnetic shield, and electrodes for directing sense current flow in a direction perpendicular to a film surface of the magnetoresistive effect film, wherein a magnetic field applied by the magnetic domain control layer to a region away from an ABS of the free layer is at least 1.4 times larger than a magnetic field applied by the magnetic domain control layer to a region near the ABS of the free layer.
摘要翻译：根据一个实施例，磁阻效应头包括设置在基板上的下磁屏蔽，从具有钉扎方向的钉扎层层压的磁阻效应膜，中间层，具有变化的磁化方向的自由层，施加的外部磁场，在磁阻效应膜的磁道宽度方向上在两侧形成有中间绝缘层的磁畴控制层，上磁屏蔽和用于引导垂直于膜的方向的感测电流的电极磁阻效应膜的表面，其中由磁畴控制层施加到远离自由层的ABS的区域的磁场比由磁畴控制层施加到接近的区域的磁场的至少大1.4倍 ABS的自由层。

3. 发明授权

US08284527B2 Magnetic heads having a graded domain control film and methods of manufacture thereof 有权
标题翻译：具有梯度域控制膜的磁头及其制造方法
公开(公告)号：US08284527B2
公开(公告)日：2012-10-09
申请号：US12957229
申请日：2010-11-30
申请人： Nobuo Yoshida , Masato Shiimoto , Kenichi Akita , Kan Yasui
发明人： Nobuo Yoshida , Masato Shiimoto , Kenichi Akita , Kan Yasui
IPC分类号： G11B5/39
CPC分类号： H01L43/08 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/3912 , G11B5/398
摘要： A magnetic head, according to one embodiment, includes a sensor film, a sensor cap film provided above the sensor film, a pair of shields including an upper magnetic shield and a lower magnetic shield which serve as electrodes that pass current in a film thickness direction of the sensor film, a track insulating film contacting both sides of the sensor film in the track width direction, a graded domain control film arranged on both sides in the track width direction of the sensor film adjacent the track insulating film, and an element height direction insulating film positioned on an opposite side of the sensor film relative to an air-bearing surface, wherein an edge position of the element height direction insulating film adjacent the sensor film on the air-bearing surface side is substantially the same as an edge position of the sensor cap film in the element height direction.
摘要翻译：根据一个实施例的磁头包括传感器膜，设置在传感器膜上方的传感器盖膜，包括上磁屏蔽和下磁屏蔽的一对屏蔽件，其用作使电流在膜厚度方向上通过的电极传感器膜的传感器膜的两侧接触的轨道绝缘膜，布置在邻近轨道绝缘膜的传感器膜的轨道宽度方向两侧的梯度控制膜和元件高度相对于空气轴承表面定位在传感器膜的相对侧上的方向绝缘膜，其中与空气轴承表面侧相邻的传感器膜的元件高度方向绝缘膜的边缘位置与边缘位置基本相同传感器盖膜在元件高度方向上。

4. 发明授权

US08223464B2 Differential head having a balanced output and method of manufacturing thereof 有权
标题翻译：具有平衡输出的差压头及其制造方法
公开(公告)号：US08223464B2
公开(公告)日：2012-07-17
申请号：US12615221
申请日：2009-11-09
申请人： Kan Yasui , Masato Shiimoto , Takeshi Nakagawa , Hiroyuki Katada , Nobuo Yoshida , Hiroyuki Hoshiya
发明人： Kan Yasui , Masato Shiimoto , Takeshi Nakagawa , Hiroyuki Katada , Nobuo Yoshida , Hiroyuki Hoshiya
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： G11B5/3163 , G11B5/398
摘要： In one embodiment, a differential-type magnetic read head includes a differential-type magneto-resistive-effect film formed on a substrate, and a pair of electrodes for applying current in a direction perpendicular to a film plane of the film. The film includes a first and second stacked film, each having a pinned layer, an intermediate layer, and a free layer, with the second stacked film being formed on the first stacked film. A side face in a track width direction of the film is shaped to have an inflection point at an intermediate position in a thickness direction of the film, and the side face is shaped to be approximately vertical to the substrate in an upward direction of the substrate from the inflection point. Also, the side face is shaped to be gradually increased in track width as approaching the substrate in a downward direction of the substrate from the inflection point.
摘要翻译：在一个实施例中，差分型磁读头包括形成在基板上的差分型磁阻效应膜和用于在垂直于膜的膜平面的方向上施加电流的一对电极。膜包括第一和第二堆叠膜，每个具有钉扎层，中间层和自由层，第二堆叠膜形成在第一堆叠膜上。膜的轨道宽度方向的侧面成形为在膜的厚度方向上的中间位置具有拐点，并且侧面成形为在基板的上方大致垂直于基板从拐点。此外，侧面被成形为在从拐点向基板向下方向接近基板的轨迹宽度上逐渐增加。

5. 发明申请

US20110134564A1 MAGNETIC HEADS HAVING A GRADED DOMAIN CONTROL FILM AND METHODS OF MANUFACTURE THEREOF 有权
标题翻译：具有等级域控制膜的磁头及其制造方法
公开(公告)号：US20110134564A1
公开(公告)日：2011-06-09
申请号：US12957229
申请日：2010-11-30
申请人： Nobuo Yoshida , Masato Shiimoto , Kenichi Akita , Kan Yasui
发明人： Nobuo Yoshida , Masato Shiimoto , Kenichi Akita , Kan Yasui
IPC分类号： G11B21/02 , G11B5/60 , G11B5/712
CPC分类号： H01L43/08 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/3912 , G11B5/398
摘要： A magnetic head, according to one embodiment, includes a sensor film, a sensor cap film provided above the sensor film, a pair of shields including an upper magnetic shield and a lower magnetic shield which serve as electrodes that pass current in a film thickness direction of the sensor film, a track insulating film contacting both sides of the sensor film in the track width direction, a graded domain control film arranged on both sides in the track width direction of the sensor film adjacent the track insulating film, and an element height direction insulating film positioned on an opposite side of the sensor film relative to an air-bearing surface, wherein an edge position of the element height direction insulating film adjacent the sensor film on the air-bearing surface side is substantially the same as an edge position of the sensor cap film in the element height direction.
摘要翻译：根据一个实施例的磁头包括传感器膜，设置在传感器膜上方的传感器盖膜，包括上磁屏蔽和下磁屏蔽的一对屏蔽件，其用作使电流在膜厚度方向上通过的电极传感器膜的传感器膜的两侧接触的轨道绝缘膜，布置在邻近轨道绝缘膜的传感器膜的轨道宽度方向两侧的梯度控制膜和元件高度相对于空气轴承表面定位在传感器膜的相对侧上的方向绝缘膜，其中与空气轴承表面侧相邻的传感器膜的元件高度方向绝缘膜的边缘位置与边缘位置基本相同传感器盖膜在元件高度方向上。

6. 发明申请

US20100118448A1 DIFFERENTIAL HEAD HAVING A BALANCED OUTPUT AND METHOD OF MANUFACTURING THEREOF 有权
标题翻译：具有平衡输出的差分头及其制造方法
公开(公告)号：US20100118448A1
公开(公告)日：2010-05-13
申请号：US12615221
申请日：2009-11-09
申请人： Kan Yasui , Masato Shiimoto , Takeshi Nakagawa , Hiroyuki Katada , Nobuo Yoshida , Hiroyuki Hoshiya
发明人： Kan Yasui , Masato Shiimoto , Takeshi Nakagawa , Hiroyuki Katada , Nobuo Yoshida , Hiroyuki Hoshiya
IPC分类号： G11B5/127
CPC分类号： G11B5/3163 , G11B5/398
摘要： In one embodiment, a differential-type magnetic read head includes a differential-type magneto-resistive-effect film formed on a substrate, and a pair of electrodes for applying current in a direction perpendicular to a film plane of the film. The film includes a first and second stacked film, each having a pinned layer, an intermediate layer, and a free layer, with the second stacked film being formed on the first stacked film. A side face in a track width direction of the film is shaped to have an inflection point at an intermediate position in a thickness direction of the film, and the side face is shaped to be approximately vertical to the substrate in an upward direction of the substrate from the inflection point. Also, the side face is shaped to be gradually increased in track width as approaching the substrate in a downward direction of the substrate from the inflection point.
摘要翻译：在一个实施例中，差分型磁读头包括形成在基板上的差分型磁阻效应膜和用于在垂直于膜的膜平面的方向上施加电流的一对电极。膜包括第一和第二堆叠膜，每个具有钉扎层，中间层和自由层，第二堆叠膜形成在第一堆叠膜上。膜的轨道宽度方向的侧面成形为在膜的厚度方向上的中间位置具有拐点，并且侧面成形为在基板的上方大致垂直于基板从拐点。此外，侧面被成形为在从拐点向基板向下方向接近基板的轨迹宽度上逐渐增加。

7. 发明申请

US20110181987A1 MAGNETIC RECORDING/REPRODUCTION HEAD 审中-公开
标题翻译：磁记录/复印头
公开(公告)号：US20110181987A1
公开(公告)日：2011-07-28
申请号：US12997518
申请日：2009-05-19
申请人： Masato Shiimoto , Hiroyuki Katada , Takeshi Nakagawa , Kan Yasui , Yo Sato
发明人： Masato Shiimoto , Hiroyuki Katada , Takeshi Nakagawa , Kan Yasui , Yo Sato
IPC分类号： G11B5/39
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3954 , G11B2005/3996
摘要： Provided is a differential type reproduction head which can obtain a preferable bit error rate without causing a baseline shift even when two magnetoresistive elements have different maximum resistance change amounts. The differential type reproduction head has a layered structure formed by a first magnetoresistive element having a first free layer, a differential gap layer, and a second magnetoresistive element having a second free layer. When DR1 and DR2 are the maximum resistance change amounts of the first magnetoresistive element and the second magnetoresistive element, respectively, HB1 is a magnetic domain control field applied to the first free layer, and HB2 is a magnetic domain control field applied to the second free layer, the following relationships are satisfied: HB1>HB2 when DR1>DR2; HB2>HB1 when DR2>DR1.
摘要翻译：提供了一种差分型再现头，即使当两个磁阻元件具有不同的最大电阻变化量时，也可以获得优选的误码率，而不引起基线偏移。差分型再现头具有由具有第一自由层，差分间隙层和具有第二自由层的第二磁阻元件的第一磁阻元件形成的分层结构。当DR1和DR2分别是第一磁阻元件和第二磁阻元件的最大电阻变化量时，HB1分别是施加到第一自由层的磁畴控制场，HB2是施加到第二自由电阻的磁畴控制场层，满足以下关系：当DR1> DR2时，HB1> HB2; HB2> DR1> DR1时HB1。

8. 发明授权

US08373943B2 Magnetic head having a multilayer magnetic film and method for producing the same 有权
标题翻译：具有多层磁性膜的磁头及其制造方法
公开(公告)号：US08373943B2
公开(公告)日：2013-02-12
申请号：US12941953
申请日：2010-11-08
申请人： Kan Yasui , Nobuo Yoshida , Katsuro Watanabe , Norihiro Okawa
发明人： Kan Yasui , Nobuo Yoshida , Katsuro Watanabe , Norihiro Okawa
IPC分类号： G11B5/127
CPC分类号： G11B5/398 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/02 , G11B5/1278 , G11B5/3146 , G11B5/3163 , G11B5/3906 , G11B2005/0002 , G11B2005/0024 , H01F10/3254 , H01F10/3263 , H01F10/329
摘要： According to one embodiment, a method for producing a magnetic head includes depositing a first film above a substrate, etching a pattern into the first film, depositing a second film on the etched portion of the first film, and depositing a third film above the first and second film to form a multilayer magnetic film, wherein the second film is embedded between the first and third film in a portion of the first film that is removed. In another embodiment, a differential magnetic read head includes a magnetic multilayer film comprising a stack of a first magnetic sensor film and a second magnetic sensor film which are not magnetically connected and a hard magnetic film provided on both sides in a track width direction of the magnetic multilayer film for controlling a magnetic domain of the magnetic multilayer film. The hard magnetic film is a laminated structure as described above.
摘要翻译：根据一个实施例，一种用于制造磁头的方法包括在基板上沉积第一膜，将图案蚀刻到第一膜中，在第一膜的蚀刻部分上沉积第二膜，以及在第一膜上沉积第三膜和第二膜以形成多层磁性膜，其中第二膜在被去除的第一膜的一部分中嵌入第一和第三膜之间。在另一个实施例中，差分磁读头包括磁性多层膜，该磁性多层膜包括不磁性连接的第一磁性传感器膜和第二磁性传感器膜的叠层，以及设置在第二磁性传感器膜的轨道宽度方向上的两侧的硬磁性膜用于控制磁性多层膜的磁畴的磁性多层膜。硬磁性膜是如上所述的层叠结构。

9. 发明申请

US20110116184A1 MAGNETIC HEAD HAVING A MULTILAYER MAGNETIC FILM AND METHOD FOR PRODUCING THE SAME 有权
标题翻译：具有多层磁性膜的磁头及其制造方法
公开(公告)号：US20110116184A1
公开(公告)日：2011-05-19
申请号：US12941953
申请日：2010-11-08
申请人： Kan Yasui , Nobuo Yoshida , Katsuro Watanabe , Norihiro Okawa
发明人： Kan Yasui , Nobuo Yoshida , Katsuro Watanabe , Norihiro Okawa
IPC分类号： G11B5/127 , G11B21/02 , G11B5/02
CPC分类号： G11B5/398 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/02 , G11B5/1278 , G11B5/3146 , G11B5/3163 , G11B5/3906 , G11B2005/0002 , G11B2005/0024 , H01F10/3254 , H01F10/3263 , H01F10/329
摘要： According to one embodiment, a method for producing a magnetic head includes depositing a first film above a substrate, etching a pattern into the first film, depositing a second film on the etched portion of the first film, and depositing a third film above the first and second film to form a multilayer magnetic film, wherein the second film is embedded between the first and third film in a portion of the first film that is removed. In another embodiment, a differential magnetic read head includes a magnetic multilayer film comprising a stack of a first magnetic sensor film and a second magnetic sensor film which are not magnetically connected and a hard magnetic film provided on both sides in a track width direction of the magnetic multilayer film for controlling a magnetic domain of the magnetic multilayer film. The hard magnetic film is a laminated structure as described above.
摘要翻译：根据一个实施例，一种用于制造磁头的方法包括在基板上沉积第一膜，将图案蚀刻到第一膜中，在第一膜的蚀刻部分上沉积第二膜，以及在第一膜上沉积第三膜和第二膜以形成多层磁性膜，其中第二膜在被去除的第一膜的一部分中嵌入第一和第三膜之间。在另一个实施例中，差分磁读头包括磁性多层膜，该磁性多层膜包括不磁性连接的第一磁性传感器膜和第二磁性传感器膜的叠层，以及设置在第二磁性传感器膜的轨道宽度方向上的两侧的硬磁性膜用于控制磁性多层膜的磁畴的磁性多层膜。硬磁性膜是如上所述的层叠结构。

10. 发明授权

US08796756B2 Nonvolatile semiconductor device and method of manufacturing the same 有权
标题翻译：非易失性半导体器件及其制造方法
公开(公告)号：US08796756B2
公开(公告)日：2014-08-05
申请号：US13755348
申请日：2013-01-31
申请人： Kenichi Akita , Daisuke Okada , Keisuke Kuwahara , Yasafumi Morimoto , Yasuhiro Shimamoto , Kan Yasui , Tsuyoshi Arigane , Tetsuya Ishimaru
发明人： Kenichi Akita , Daisuke Okada , Keisuke Kuwahara , Yasafumi Morimoto , Yasuhiro Shimamoto , Kan Yasui , Tsuyoshi Arigane , Tetsuya Ishimaru
IPC分类号： H01L29/792
CPC分类号： H01L29/66833 , H01L27/115 , H01L27/11563 , H01L27/11568 , H01L29/792
摘要： A charge storage layer interposed between a memory gate electrode and a semiconductor substrate is formed shorter than a gate length of the memory gate electrode or a length of insulating films so as to make the overlapping amount of the charge storage layer and a source region to be less than 40 nm. Therefore, in the write state, since the movement in the transverse direction of the electrons and the holes locally existing in the charge storage layer decreases, the variation of the threshold voltage when holding a high temperature can be reduced. In addition, the effective channel length is made to be 30 nm or less so as to reduce an apparent amount of holes so that coupling of the electrons with the holes in the charge storage layer decreases; therefore, the variation of the threshold voltage when holding at room temperature can be reduced.
摘要翻译：插入在存储栅电极和半导体衬底之间的电荷存储层形成为比存储栅电极的栅极长度或绝缘膜的长度短，以使电荷存储层和源极区域的重叠量成为小于40nm。因此，在写入状态下，由于在电荷存储层中局部存在的电子和空穴的横向的移动减少，因此可以降低保持高温时的阈值电压的变化。此外，有效沟道长度为30nm以下，以减少空穴的表观量，使得电子与电荷存储层中的空穴的耦合减小; 因此，可以降低在室温下保持时的阈值电压的变化。

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