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1. 发明专利

JP2009123276A Magnetic disk device and flying height adjusting method of magnetic head 审中-公开
标题翻译：磁性磁体装置及飞行高度调整方法
公开(公告)号：JP2009123276A
公开(公告)日：2009-06-04
申请号：JP2007295551
申请日：2007-11-14
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： TANAKA HIDEAKI , KURITA MASAYUKI , KUROKI KENJI , KODAIRA HIDEKAZU
IPC分类号： G11B21/21 , G11B25/04 , G11B33/14
摘要： PROBLEM TO BE SOLVED: To compensate change of a flying height of a magnetic head of a magnetic disk device caused by change of ambient pressure without accompanied by cost increase.
SOLUTION: When measuring ambient pressure in an operating state of the magnetic disk device, VCM (voice coil motor) applied force when positioning to a predetermined position and temperature at that time are input in a device control section from a VCM control section and a temperature sensor. The device control section obtains the ambient pressure from a correction-conversion table stored in a memory, the VCM applied force when positioning to the predetermined position during initial shipping and the temperature at that time based on the information. The device control section further obtains a flying adjustment amount due to change of the ambient pressure from a conversion table of the flying height fall amount to the ambient pressure, and the device control section performs adjustment to a flying height adjustment mechanism according to it.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：补偿由环境压力的变化引起的磁盘装置的磁头的飞行高度的变化，而不伴随成本增加。解决方案：当在磁盘装置的操作状态下测量环境压力时，VCM（音圈电机）在定位到预定位置时施加力，并且此时的温度从VCM控制部分输入到装置控制部分和温度传感器。设备控制部分根据存储在存储器中的校正 - 转换表获取环境压力，VCM在初始运送期间定位到预定位置时施加的力，以及基于该信息的当时温度。设备控制部分还从飞行高度下降量的转换表到环境压力，获得由于环境压力变化引起的飞行调节量，并且装置控制部根据它进行对飞行高度调节机构的调整。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2009004039A Magnetic head and manufacturing method thereof 有权
标题翻译：磁头及其制造方法
公开(公告)号：JP2009004039A
公开(公告)日：2009-01-08
申请号：JP2007164838
申请日：2007-06-22
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： YASUI HIROTO , TANAKA HIDEAKI , OKAWA TAKAKO , NANBA AKIHIRO , YONAMOTO YOSHIKI , MIYATA KAZUFUMI , NAMIKI KENTARO
IPC分类号： G11B5/39 , H01L43/08
CPC分类号： G11B5/3163 , B82Y10/00 , B82Y25/00 , G11B5/3909 , G11B5/41 , G11B2005/3996 , Y10T29/49048
摘要： PROBLEM TO BE SOLVED: To provide a magnetic head suitable for high density recording at a high yield by suppressing the deterioration of an SN ratio of a reproduction element simultaneously by thinning a magnetic head floating surface protective layer. SOLUTION: The reproduction element 12 of the magnetic head 1 has a magnetoresistance effect film (TMR film) 2 formed between a lower magnetic shield layer 14 and an upper magnetic shield layer 16; and a refill film 18 and a magnetic domain control film 19 on both sides of the TMR film 2. The TMR film 2 is composed of a lower metallic layer 3, an antiferromagnetic layer 4, a ferromagnetic fixed layer 5, an intermediate layer 6, a ferromagnetic free layer 7, and an upper metallic layer 8. On the recording medium facing surface 9 of the TMR film 2, a floating surface protective layer 100 formed of a silicon nitride film having a thickness of about 2.0 nm is formed. Since silicon contained in the silicon nitride film is inactivated by nitrogen, the silicon never damages the TMR film 2. Consequently, the noise of the reproduction element 12 can be suppressed to a low level. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过使磁头浮动表面保护层变薄来同时抑制再现元件的SN比的恶化来提供适合于高收率的高密度记录的磁头。解决方案：磁头1的再现元件12具有形成在下磁屏蔽层14和上磁屏蔽层16之间的磁阻效应膜（TMR膜）2; 以及在TMR膜2两侧的补充膜18和磁畴控制膜19.TMR膜2由下金属层3，反铁磁层4，铁磁性固定层5，中间层6，铁磁自由层7和上金属层8.在TMR膜2的记录介质面向表面9上形成由厚度约为2.0nm的氮化硅膜形成的浮动表面保护层100。由于氮化硅膜中所含的硅被氮气灭活，因此硅不会损坏TMR膜2.因此，可以将再现元件12的噪声抑制到低水平。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008181590A Method of manufacturing magnetic disk device 审中-公开
标题翻译：制造磁性装置的方法
公开(公告)号：JP2008181590A
公开(公告)日：2008-08-07
申请号：JP2007013733
申请日：2007-01-24
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： KURITA MASAYUKI , TANAKA HIDEAKI , SATO NORIAKI , OSAWA TOYOZO , SHIRAMATSU TOSHIYA , YATAGAI ATSUSHI , OKI SATOSHI , IDE HIROSHI , KODAIRA HIDEKAZU , HAMAGUCHI KATSUHIKO
IPC分类号： G11B21/21 , G11B5/31
CPC分类号： G11B5/455 , G11B5/6005 , Y10T29/49004
摘要： PROBLEM TO BE SOLVED: To solve the problem that it is necessary to determine and set an appropriate current according to a head and a zone before shipping in a method of manufacturing a magnetic disk device in which a flying height of a magnetic head slider is adjusted for each product using a heater. SOLUTION: After an element constituting a magnetic recording and reproducing part is incorporated into a case 1, magnetic information is reproduced in a specific track of a magnetic disk medium 3 by a reproducing element 5b while gradually increasing the current supplied to the heater 5c of the magnetic head slider 5. An amplitude of a reproduction signal is measured at a plurality of places in a circumferential direction of the track to detect contact of the magnetic head slider 5 with the magnetic disk medium 3 from the increase in variation in the measured amplitude. A value obtained by subtracting a prescribed current value from the current when the next contact is detected is stored (set) in a storage part 15, as the proper current of the magnetic head slider 5. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题为了解决在制造其中磁头的飞行高度的磁盘装置的制造方法中根据头部和运送前的区域来确定和设置适当电流的问题的问题使用加热器调整每个产品的滑块。解决方案：在将构成磁记录和再现部件的元件并入壳体1之后，通过再现元件5b在磁盘介质3的特定轨道中再现磁信息，同时逐渐增加提供给加热器的电流在磁头滑动器5的5c处。再现信号的振幅在轨道的圆周方向上的多个位置处被测量，以检测磁头滑块5与磁盘介质3的接触，测量幅度。作为磁头滑动器5的适当电流，将从存储部15中的电流中减去规定的电流值而得到的值存储（设定）。（C）2008， JPO＆INPIT

4. 发明专利

JP2011113573A Disk drive and method of measuring clearance between head slider and disk 审中-公开
标题翻译：磁盘驱动器和测量头滑块与磁盘之间的间隙的方法
公开(公告)号：JP2011113573A
公开(公告)日：2011-06-09
申请号：JP2009265787
申请日：2009-11-21
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： AGARI KOJI , TANAKA HIDEAKI , TAKEUCHI YOSHINORI , FURUIKE MINORU , MATSUMOTO HIROYUKI , OTSU TAKAYOSHI
IPC分类号： G11B21/21
摘要： PROBLEM TO BE SOLVED: To reduce damage to a head slider caused when the head slider touches down to a disk in measuring clearance between the head slider and the disk.
SOLUTION: The HDD temporarily reduces the clearance of the head slider for touch down in measuring clearance, thereafter the clearance is enlarged, and the clearance is maintained in the range of a value larger than that of the reduced clearance. A vibration of the head slider is monitored by the HDD. When the monitored vibration satisfies a predetermined standard, the HDD determines that the head slider and the magnetic disk are in contact with each other. Thus, contact time (the number of contacts) between the head slider and the magnetic disk is reduced, and reliability of a head disk interface can be improved.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了减少当磁头滑块在磁头滑块和磁盘之间测量间隙时磁头滑块接触到磁盘时导致的磁头滑块的损坏。
解决方案：HDD在测量间隙中临时减小头部滑块的触碰间隙，此后间隙扩大，间隙保持在大于减小间隙的值的范围内。磁头滑块的振动由HDD监视。当监视的振动满足预定的标准时，HDD确定磁头滑块和磁盘彼此接触。因此，磁头滑块和磁盘之间的接触时间（触点数）减少，并且可以提高磁头磁盘接口的可靠性。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2010146651A Magnetic head slider 有权
标题翻译：磁头滑块
公开(公告)号：JP2010146651A
公开(公告)日：2010-07-01
申请号：JP2008323474
申请日：2008-12-19
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： FUJITA SHIGEO , SOGA MASAHIKO , TANAKA HIDEAKI , UEDA YUJI , OKADA TOSHIHIRO , OTSU TAKAYOSHI , KIMURA WATARU , MARUYAMA YOJI
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/3133 , G11B5/3136 , G11B5/3967 , G11B5/6005 , G11B5/6064 , G11B2005/0005
摘要： PROBLEM TO BE SOLVED: To significantly reduce a thermal protrusion of a thin-film head of a magnetic head slider.
SOLUTION: The thin-film head includes a soft element 14 having a low Young's modulus and a hard element 16 having a high Young's modulus and a low coefficient of linear expansion for reducing thermal protrusion. A preferable soft element is a resist. A preferable hard element with a high Young's modulus and a low coefficient of linear expansion is SiC or W. In particular, SiC is preferable. The soft element and the hard element are provided at the back of a sensor device and a recording magnetic pole. Provision of these two elements in the thin head exerts a combined effect, thereby exhibiting a very large effect of decreasing the thermal protrusion.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：显着减少磁头滑动器的薄膜头的热突起。解决方案：薄膜头包括具有低杨氏模量的软元件14和具有高杨氏模量的硬质元件16和用于减少热突起的低线性膨胀系数。优选的软元件是抗蚀剂。具有高杨氏模量和低线膨胀系数的优选硬质元素是SiC或W。特别地，优选SiC。软元件和硬元件设置在传感器装置和记录磁极的背面。在薄头中设置这两个元件施加组合效果，从而表现出非常大的降低热突起的效果。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2009104783A Magnetic head slider and magnetic disk unit 有权
标题翻译：磁头滑块和磁盘单元
公开(公告)号：JP2009104783A
公开(公告)日：2009-05-14
申请号：JP2009032158
申请日：2009-02-16
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： MIYAKE KOJI , TANAKA HIDEAKI , KATO ATSUSHI , SHIRAMATSU TOSHIYA , KURITA MASAYUKI
IPC分类号： G11B5/31 , G11B5/60 , G11B21/21
摘要： PROBLEM TO BE SOLVED: To provide a magnetic head slider improving extending performance as an actuator and extending life, in regard to a heating means for adjusting a gap flying height (hg).
SOLUTION: A recording/reproducing element 2 is formed on a slider 4 in the vicinity of a floating surface (ABS). The surrounding of the recording/reproducing element 2 is filled with alumina 3. The recording/reproducing element 2 includes an upper magnetic pole 5 and a lower magnetic pole 6 for recording, a coil 7 and a resist 8 filling the surrounding of the coil 7. The recording/reproducing element 2 also includes a reproducing element (MR) 9 for reproducing, and an upper shield 10 and a lower shield 11 for protecting the reproducing element 9 from an external magnetic field. A heater 12 for adjusting the flying height is disposed between the slider 4 and the recording/reproducing element 2 at a backward position of the reproducing element. The heater 12 has a resistance wire routed to avoid a portion (a central portion, for example) producing the highest temperature of the heater 12, when the resistance wire is laid on the entire surface.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：关于用于调整间隙飞行高度（hg）的加热装置，提供一种提高作为致动器的延伸性能和延长使用寿命的磁头滑块。解决方案：记录/再现元件2形成在浮动表面（ABS）附近的滑块4上。记录/再现元件2的周围填充有氧化铝3.记录/再现元件2包括用于记录的上磁极5和下磁极6，线圈7和填充线圈7的周围的抗蚀剂8 记录/再现元件2还包括用于再现的再现元件（MR）9和用于保护再现元件9免受外部磁场的上屏蔽10和下屏蔽件11。用于调节飞行高度的加热器12设置在再现元件的后部位置处的滑块4和记录/再现元件2之间。当电阻丝布置在整个表面上时，加热器12具有布线以避免产生加热器12的最高温度的部分（例如中心部分）的电阻丝。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2007042239A Magnetic disk device and manufacturing method of magnetic disk device 审中-公开
标题翻译：磁盘设备的制造和制造方法
公开(公告)号：JP2007042239A
公开(公告)日：2007-02-15
申请号：JP2005227298
申请日：2005-08-04
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： ONO HIROYUKI , KURITA MASAYUKI , MIKE SUK , TANAKA HIDEAKI
IPC分类号： G11B21/21
CPC分类号： G11B5/6064 , G11B5/6005 , G11B2005/0021
摘要： PROBLEM TO BE SOLVED: To improve productivity of a magnetic disk device in which floating height of a magnetic head is controlled using a heater. SOLUTION: In a manufacturing method of the magnetic disk device performing recording and reproducing of information for a magnetic disk medium using the magnetic head provided with a heater for controlling floating height, recording and reproducing performance of the magnetic head is tested, based on this test result, heating conditions by which heating by the heater is performed are decided, control parameters deciding heating quantity of the heater in the decided heating conditions are decided. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提高使用加热器控制磁头浮动高度的磁盘装置的生产率。解决方案：在使用设置有用于控制浮动高度的加热器的磁头来执行磁盘介质的信息的记录和再现的制造方法中，以磁头的记录和再现性能为基础进行测试在该测试结果中，确定执行由加热器进行加热的加热条件，决定在所决定的加热条件下决定加热器的加热量的控制参数。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2006164388A Method of controlling floating height of magnetic head slider, and magnetic disk drive 审中-公开
标题翻译：控制磁头滑块浮动高度的方法和磁盘驱动
公开(公告)号：JP2006164388A
公开(公告)日：2006-06-22
申请号：JP2004354000
申请日：2004-12-07
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： YAMAZAKI TAKANORI , TANAKA HIDEAKI , KURITA MASAYUKI
IPC分类号： G11B21/21
CPC分类号： G11B5/6005 , G11B5/6064
摘要： PROBLEM TO BE SOLVED: To appropriately control floating height of a magnetic head slider at any time without contact between the magnetic head slider and a magnetic disk.
SOLUTION: When a magnetic disk drive 1 is activated, operation is started by reading an ordinary (room temperature) power value from a memory inside an MPU12 (step 100). A temperature sensor 10 measures the temperature inside the magnetic disk device and transmits it to the MPU12 (step 101). The MPU12 calculates the power value to be impressed to the floating height adjustment mechanism 51 in accordance with the temperature transmitted from the temperature sensor 10 (step 102). The MPU12 increases or decreases the electric power to be impressed to the floating height adjustment mechanism 51 in accordance with the calculated power value (step 103). In the floating height controlled (compensated) by the floating height adjustment mechanism 51, the magnetic head slider 5 performs recording reproducing to a magnetic disk 3 (step 104).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：适当地控制磁头滑动器的浮动高度，而不会在磁头滑块和磁盘之间接触。解决方案：当磁盘驱动器1被激活时，通过从MPU12内的存储器读取普通（室温）功率值开始操作（步骤100）。温度传感器10测量磁盘装置内的温度并将其发送到MPU12（步骤101）。 MPU12根据从温度传感器10发送的温度，计算向浮动高度调节机构51施加的功率值（步骤102）。 MPU12根据计算出的功率值来增加或减少向浮动高度调节机构51施加的电力（步骤103）。在通过浮动高度调节机构51控制（补偿）的浮动高度中，磁头滑动器5对磁盘3执行记录再现（步骤104）。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2008165949A Magnetic disk unit, preamplifier for magnetic disk unit, and flexible printed cable assembly for magnetic disk unit 有权
标题翻译：磁盘单元，磁盘单元前置放大器，磁性弹性单元柔性印刷电缆总成
公开(公告)号：JP2008165949A
公开(公告)日：2008-07-17
申请号：JP2007000632
申请日：2007-01-05
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： KURITA MASAYUKI , MURAI MASASHI , TANAKA HIDEAKI , SATO NORIAKI , FUKUDA HIROSHI , FUJIMORI TSUKASA
IPC分类号： G11B21/21
CPC分类号： G11B33/121
摘要： PROBLEM TO BE SOLVED: To improve the cost, packaging property and reliability of a magnetic disk unit for adjusting the floating height of a magnetic head slider according to the using height by using an atmospheric pressure sensor and a heater.
SOLUTION: The preamplifier 7 is a semiconductor chip three-dimensionally stacked and formed with thin film circuits on a bulk silicon wafer 7a. The atmospheric pressure sensor 7f is integrally formed by a half semiconductor process on the semiconductor chip. The atmospheric pressure sensor 7f is constituted of an isolated space 7g, a diaphragm 7h which is deformed when the pressure difference between the isolated space 7g and the outside changes, and a lower electrode 7i and upper electrode 7j which detect the change of an electrostatic capacity when the pressure difference between the isolated space 7g and the outside changes. The preamplifier 7 integrally formed with the atmospheric pressure sensor 7f is mounted on an FPC 6 in such a manner that the atmospheric pressure sensor 7f faces the flexible printed cable (FPC) 6. A through-hole 6f is disposed in a portion of the FPC facing the atmospheric pressure sensor 7f in order to introduce the atmospheric pressure of the use environment into the diaphragm 7h of the atmospheric pressure sensor 7f.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过使用大气压力传感器和加热器，提高用于根据使用高度调节磁头滑块的浮动高度的磁盘单元的成本，包装性能和可靠性。解决方案：前置放大器7是在体硅晶片7a上三维层叠并形成有薄膜电路的半导体芯片。大气压传感器7f通过半导体芯片上的半导体工艺一体地形成。大气压传感器7f由隔离空间7g，隔离空间7g与外部的压力差变化时的隔膜7h，以及检测静电容量变化的下部电极7i和上部电极7j构成当隔离空间7g和外部之间的压差变化时。与大气压传感器7f一体形成的前置放大器7以大气压力传感器7f面对柔性印刷电缆（FPC）6的方式安装在FPC6上。在FPC的一部分中设置有通孔6f 面向大气压力传感器7f，以将使用环境的大气压力引入大气压传感器7f的隔膜7h。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007253274A Manufacturing method of thin film magnetic head and surface plate 审中-公开
标题翻译：薄膜磁头和表面板的制造方法
公开(公告)号：JP2007253274A
公开(公告)日：2007-10-04
申请号：JP2006080230
申请日：2006-03-23
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： HOTTA HIDEJI , SEKI TAKATERU , TANAKA HIDEAKI
IPC分类号： B24B37/005 , G11B5/31
摘要： PROBLEM TO BE SOLVED: To solve a problem that surface roughness of a polished face of a workpiece can be reduced by reducing a diameter of an abrasive grain to be used, while efficiency for polishing the workpiece is deteriorated, in polish processing an electronic device such as a magnetic head. SOLUTION: When a face which is a floating face 53 of a strip piece 70 with connected thin film magnetic head elements is polished using abrasive grains with a small diameter of 100 nm or less, the surface roughness of the polished face can be improved without sacrificing polishing efficiency or a durability of the surface plate by increasing a polishing load, reducing a width 24 of a land 22 formed on the surface of a polishing surface plate 8, making a pitch of grooves 21 smaller than conventional, and increasing the number of lands 22 per unit length, simultaneously. Also, manufacturing costs due to improvement of the surface roughness are not increased. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题为了解决通过减少使用的磨粒的直径来减少工件的抛光面的表面粗糙度的问题，同时抛光工件的效率劣化，在抛光加工中电子设备如磁头。解决方案：当使用具有100nm或更小直径的磨粒将具有连接的薄膜磁头元件的带状片70的浮动面53的表面抛光时，抛光面的表面粗糙度可以是通过增加抛光负荷而不牺牲抛光效率或表面板的耐久性而改善，减少了形成在抛光表面板8的表面上的焊盘22的宽度24，使得沟槽21的间距小于常规，并增大了同时，每单位长度的土地数量22。此外，由于表面粗糙度的改善而导致的制造成本不增加。版权所有（C）2008，JPO＆INPIT

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