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    • 71. 发明公开
    • 박막 자기 헤드의 제조 방법
    • 生产薄膜磁头的方法
    • KR1020090100206A
    • 2009-09-23
    • KR1020080106723
    • 2008-10-29
    • 후지쯔 가부시끼가이샤
    • 이토타카시다이마츠히데아키
    • G11B5/127G11B5/31
    • G11B5/3163G11B5/3106G11B5/3133Y10T29/49032
    • PURPOSE: A method of producing a thin film magnetic head is provided to form a planarized surface including the top surface of an upper return yoke and form a low thermal expander layer with no stepped part on the planarized surface. CONSTITUTION: A method of producing a thin film magnetic head(1) is as follows. Coil layers(22,42) are formed on the body of a recording head unit(3). A first insulation layer is formed on and between the spirals of the coil layers except for a central part(40). An upper return yoke(47) is formed from the location the floating surface to the location reaching at least a part of the anti-floating surface of the coil layer on the first insulation layer. A second insulation layer is formed on the upper return yoke and the first insulation layer. Planarizing is performed to make the top surface of the upper return yoke and the second insulation layer uniform. A low thermal expander layer(52) is formed on the planarized surface by sputtering.
    • 目的:提供一种制造薄膜磁头的方法,以形成包括上返回磁轭的顶表面的平坦化表面,并在平坦化表面上形成没有阶梯部分的低热膨胀层。 构成:制造薄膜磁头(1)的方法如下。 线圈层(22,42)形成在记录头单元(3)的主体上。 第一绝缘层形成在除了中心部分(40)之外的线圈层的螺旋线之间和之间。 从浮动表面到到达第一绝缘层上的线圈层的防浮动表面的至少一部分的位置形成上返回轭(47)。 第二绝缘层形成在上返回轭和第一绝缘层上。 进行平面化,以使上返回轭和第二绝缘层的顶表面均匀。 通过溅射在平坦化表面上形成低热膨胀层(52)。
    • 73. 发明公开
    • 열적 헤드 부상 높이 액추에이터를 조작하는 개선된 방법을가진 디스크 드라이브
    • 具有改进的用于操作热头飞行高度致动器的方法的盘驱动器
    • KR1020080079587A
    • 2008-09-01
    • KR1020080003814
    • 2008-01-14
    • 에이취지에스티 네덜란드 비.브이.
    • 디에론로엘핫토리료헤이타팟와르드한사티야지트닐칸스위더홀트크리스토퍼다비드
    • G11B21/21G11B21/02G11B21/16
    • G11B5/40G11B5/3133G11B5/5547G11B5/6064G11B5/607
    • A disk drive is provided to control a head-disk spacing more effectively by operating a thermal head fly-height actuator with an improved method. A disk drive comprises a magnetic recording disk(104), an air bearing slider(107), a read/write head(108), a data controller, a head positioning actuator, a heater(200), and a head fly-height controller. The magnetic recording disk has plural concentric data tracks which have plural angularly separated data sectors. The air bearing slider is maintained near the surface of the disk when the disk is rotating. The read/write head on the slider reads and writes data in the data tracks of the disk. The head positioning actuator moves the slider and the attached head to the selected data track. The heater on the slider changes the head-disk spacing. The head fly-height controller is coupled to the data controller and the heater and applies heater power to the heater to change the head-disk spacing, and has a processor and a memory for storing an instruction program readable by the processor for performing processes including a process of calculating the time power is applied to the heater from the number of the data track where data is to be read or written.
    • 提供了一种磁盘驱动器,通过使用改进的方法操作热敏头飞行高度致动器来更有效地控制磁头间隔。 磁盘驱动器包括磁记录盘(104),空气轴承滑块(107),读/写头(108),数据控制器,头定位致动器,加热器(200)和头飞高度 控制器。 磁记录盘具有多个具有多个角度分离的数据扇区的同心数据磁道。 当盘旋转时,空气轴承滑块保持在盘的表面附近。 滑块上的读/写头读取和写入磁盘数据轨道中的数据。 头定位致动器将滑块和附接头移动到所选择的数据轨道。 滑块上的加热器更改磁头间距。 头部飞行高度控制器耦合到数据控制器和加热器,并且向加热器施加加热器功率以改变头盘间隔,并且具有处理器和存储器,用于存储处理器可读的指令程序,用于执行包括 根据要读取或写入数据的数据轨道的数量,计算加热器的时间功率的处理。
    • 78. 发明授权
    • 스핀 밸브 센서용의 3층 시드층 구조
    • 스핀밸브센서용的3층시드층구조
    • KR100369284B1
    • 2003-01-24
    • KR1020000061509
    • 2000-10-19
    • 인터내셔널 비지네스 머신즈 코포레이션
    • 린츠안마우리다니엘
    • G11B5/33
    • H01F10/3268B82Y10/00B82Y25/00G11B5/012G11B5/3133G11B5/3163G11B5/3903G11B2005/3996H01F10/3295
    • A trilayer seed layer structure (302) is employed between a first read gap layer (216) and a spin valve sensor (300) for improving the magnetic and giant magnetoresistive properties and the thermal stability. In the spin valve sensor (300), the trilayer seed layer structure(302)is located between a first read gap layer (216) and a ferromagnetic free layer (202). The antiferromagnetic pinning layer (214) is preferably nickel manganese (Ni-Mn). The trilayer seed layer structure includes a first seed layer (SL1) that is a first metallic oxide, a second seed layer (SL2) that is a second metallic oxide and a third seed layer (SL3) that is a nonmagnetic metal. A preferred embodiment is a first seed layer (SL1) of nickel oxide (NiO), a second seed layer (SL2) of nickel manganese oxide (NiMnO x ), and a third seed layer (SL3) of copper (Cu).
    • 在第一读取间隙层(216)和自旋阀传感器(300)之间采用三层种子层结构(302),用于改善磁性和巨磁阻特性以及热稳定性。 在自旋阀传感器(300)中,三层籽晶层结构(302)位于第一读取间隙层(216)和铁磁自由层(202)之间。 反铁磁性钉扎层(214)优选为镍锰(Ni-Mn)。 三层种子层结构包括作为第一金属氧化物的第一种子层(SL1),作为第二金属氧化物的第二种子层(SL2)和作为非磁性金属的第三种子层(SL3)。 一个优选实施例是氧化镍(NiO)的第一晶种层(SL1),镍锰氧化物(NiMnO x)的第二晶种层(SL2)和铜(Cu)的第三晶种层(SL3)。
    • 79. 发明公开
    • 스핀 밸브 센서용의 3층 시드층 구조
    • 用于旋转阀传感器的TRILAYER SEED层结构
    • KR1020010051121A
    • 2001-06-25
    • KR1020000061509
    • 2000-10-19
    • 인터내셔널 비지네스 머신즈 코포레이션
    • 린츠안마우리다니엘
    • G11B5/33
    • H01F10/3268B82Y10/00B82Y25/00G11B5/012G11B5/3133G11B5/3163G11B5/3903G11B2005/3996H01F10/3295
    • PURPOSE: A trilayer seed layer structure for spin valve sensor is provided to improve the GMR coefficient and the unidirectional anisotropy field(HUA) while maintaining a low value of the ferromagnetic coupling field(HF). CONSTITUTION: A trilayer seed layer structure(302) is employed between a first read gap layer(216) and a spin valve sensor(300) for improving the magnetic and giant magnetoresistive properties and the thermal stability. In the spin valve sensor(300), the trilayer seed layer structure(302)is located between a first read gap layer(216) and a ferromagnetic free layer(202). The antiferromagnetic pinning layer(214) is preferably nickel manganese(Ni-Mn). The trilayer seed layer structure includes a first seed layer(SL1) that is a first metallic oxide, a second seed layer(SL2) that is a second metallic oxide and a third seed layer(SL3) that is a nonmagnetic metal. A preferred embodiment is a first seed layer(SL1) of nickel oxide(NiO), a second seed layer(SL2) of nickel manganese oxide(NiMnOx), and a third seed layer(SL3) of copper(Cu).
    • 目的:提供自旋阀传感器的三层种子层结构,以改善GMR系数和单向各向异性场(HUA),同时保持铁磁耦合场(HF)的低值。 构成:在第一读间隙层(216)和自旋阀传感器(300)之间采用三层种子层结构(302),用于改善磁和巨磁阻特性和热稳定性。 在自旋阀传感器(300)中,三层种子层结构(302)位于第一读取间隙层(216)和铁磁性自由层(202)之间。 反铁磁钉扎层(214)优选为镍锰(Ni-Mn)。 三层种子层结构包括作为第一金属氧化物的第一种子层(SL1),作为第二金属氧化物的第二种子层(SL2)和作为非磁性金属的第三种子层(SL3)。 优选的实施方案是氧化镍(NiO)的第一籽晶层(SL1),镍锰氧化物(NiMnO x)的第二籽晶层(SL2)和铜(Cu)的第三种子层(SL3)。
    • 80. 发明公开
    • 박막 자기 헤드
    • 薄膜磁头
    • KR1020000047905A
    • 2000-07-25
    • KR1019990054803
    • 1999-12-03
    • 알프스 덴키 가부시키가이샤
    • 하야까와야스오
    • G11B5/39
    • G11B5/3903G11B5/3133G11B5/3143G11B5/40G11B5/455G11B33/14
    • PURPOSE: A thin film magnetic head is provided to emit heat owing to normal detected currents efficiently, to prevent thermal diffusion owing to temperature rising of an MR(magnetic resist) element layer, damage by a fire and output reduction and bark-hausen noise. CONSTITUTION: In a thin film magnetic head, a magnetic resistance effect element layer(45) is formed through a lower gap layer on a lower shield layer(53). An electrode layer(48) gives detection current to the magnetic resistance effect element layer. An upper shield layer(57) is formed through an upper gap layer(56) on the electrode layer. At least one of upper/lower gap layers has a high thermal conductive insulating layer containing at least Al, N, X and O. The X is one or more than kinds of element selected from Si, B, Ge and C. The gap layer having the insulating layer is excellent in corrosion resistance to a strong alkali solution and water and has small film stress to provide reliable products without exfoliating when/after forming an MR head.
    • 目的:提供薄膜磁头,以有效地发出正常的检测电流来发热,防止由于MR(磁阻抗体)元件层的温度升高引起的热扩散,火灾损害和输出降低和树皮噪音。 构成:在薄膜磁头中,通过下屏蔽层(53)上的下间隙层形成磁阻效应元件层(45)。 电极层(48)向磁阻效应元件层提供检测电流。 通过电极层上的上间隙层(56)形成上屏蔽层(57)。 上/下间隙层中的至少一个具有至少包含Al,N,X和O的高导热绝缘层.X是选自Si,B,Ge和C中的一种或多种元素。间隙层 具有绝缘层对于强碱溶液和水的耐腐蚀性优异,并且在形成MR头时/之后具有小的薄膜应力以提供可靠的产品,而不会发生剥离。