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31. 发明授权

US06229669B1 Servo head design and method of using the same 有权
标题翻译：伺服头设计及使用方法
公开(公告)号：US06229669B1
公开(公告)日：2001-05-08
申请号：US09449010
申请日：1999-11-24
申请人： Patricia A. Beck , Paul W. Poorman , George M. Clifford, Jr. , Richard H. Henze
发明人： Patricia A. Beck , Paul W. Poorman , George M. Clifford, Jr. , Richard H. Henze
IPC分类号： G11B5187
CPC分类号： G11B5/187 , G11B5/1871 , G11B5/4893 , G11B5/584 , G11B15/62 , Y10T29/49032 , Y10T29/49043 , Y10T29/49048 , Y10T29/49055 , Y10T29/4906 , Y10T29/49789 , Y10T29/49798
摘要： A servo head having a substantially planar head surface and a leading rounded edge is disclosed with a technique of utilizing the disclosed servo head to write to tape passing over the planar head surface, the tape separate from the servo head by an air bearing. The rounded leading edge on the head creates the air bearing to reduce wear of the tape and of the head. Moreover, any head wear occurs at the leading edge rather than in the region of the head where the servo pattern is formed. The servo write head may have a substantially planar head surface. A leading edge is disposed adjacent to the head surface such that the tape contacts the leading edge before passing over the head surface. The leading edge is rounded to form the air bearing between the head surface and the tape. A rounded trailing edge may be disposed adjacent to the head surface such that the tape passes over the trailing edge after passing over the head surface.
摘要翻译：公开了一种具有基本上平面的头表面和前圆形边缘的伺服头，其技术是利用所公开的伺服头来写入通过平面头表面的带子，该带通过空气轴承与伺服头分离。头部圆角的前缘产生空气轴承，以减少胶带和头部的磨损。此外，任何头部磨损发生在前缘而不是在形成伺服图案的头部的区域中。伺服写入头可以具有基本平坦的头表面。前缘邻近头表面设置，使得带在通过头表面之前接触前缘。前缘是圆形的，以形成头表面和胶带之间的空气轴承。圆形的后缘可以邻近头部表面设置，使得带在经过头表面之后越过后缘。

32. 发明授权

US6018444A Batch fabricated servo write head having low write-gap linewidth variation 失效
标题翻译：具有低写入间隙线宽变化的批量制造的伺服写入头
公开(公告)号：US6018444A
公开(公告)日：2000-01-25
申请号：US959509
申请日：1997-10-28
申请人： Patricia A. Beck , Paul W. Poorman , George M. Clifford, Jr. , Richard H. Henze
发明人： Patricia A. Beck , Paul W. Poorman , George M. Clifford, Jr. , Richard H. Henze
IPC分类号： G11B5/127 , G11B5/187 , G11B5/48 , G11B5/584 , G11B15/62 , G11B5/23
CPC分类号： G11B5/187 , G11B15/62 , G11B5/584 , G11B5/1871 , G11B5/4893 , Y10T29/49032 , Y10T29/49043 , Y10T29/49048 , Y10T29/49055 , Y10T29/4906 , Y10T29/49789 , Y10T29/49798
摘要： A batch fabrication technique is described that increases the manufacturing efficiency of servo write heads and also improves servo pattern definition for fine features, while reducing tape and head wear. Multiple heads are fabricated as a batch from one or more ferrite wafers. A nominally flat, large wafer surface and a contour suitable for uniform photoresist application and planar photolithography permit fine servo pattern definition with low linewidth variation. Non-magnetic material is photolithographically defined to produce gaps above the spacer. The non-magnetic material may be photoresist, semiconductor materials, glass, metal or the like. The material may even be removed later to leave air gaps. The non-magnetic material forms a region where the field loops out to intersect the passing tape, thereby transferring a magnetic pattern to tape. Additionally, a lower ferrite wafer may be mated to the upper ferrite wafer to complete a magnetic circuit around the gaps. The upper or lower ferrite wafer may have a channel through which an inductive winding passes. Multiple heads may be formed through batch processing of the upper and lower ferrite wafers.
摘要翻译：描述了一种批量制造技术，其提高了伺服写入头的制造效率，并且还改善了精细特征的伺服模式定义，同时减少了磁带和磁头磨损。多个头部从一个或多个铁氧体晶片制成批次。标称平坦，大的晶片表面和适用于均匀光刻胶应用和平面光刻的轮廓允许具有低线宽变化的精细伺服模式定义。非磁性材料被光刻定义以在间隔物上方产生间隙。非磁性材料可以是光致抗蚀剂，半导体材料，玻璃，金属等。材料甚至可以稍后移除以留下空隙。非磁性材料形成区域，其中磁场循环出来以与通过的磁带相交，从而将磁性图案转印到磁带上。此外，下部铁氧体晶片可以与上部铁氧体晶片配合，以在该间隙周围形成磁路。上或下铁素体晶片可以具有感应绕组通过的通道。可以通过上下铁素体晶片的批量处理形成多个头。

33. 发明授权

US5847902A Head suspension assembly having parallel-coupled load/gimbal springs 失效
标题翻译：头悬挂组件，具有平行耦合的负载/万向弹簧
公开(公告)号：US5847902A
公开(公告)日：1998-12-08
申请号：US907568
申请日：1997-08-08
申请人： George M. Clifford, Jr. , Richard H. Henze , Carol J. Wilson
发明人： George M. Clifford, Jr. , Richard H. Henze , Carol J. Wilson
IPC分类号： G11B5/60 , G11B5/48 , G11B5/56 , G11B21/21
CPC分类号： G11B5/4826
摘要： A magnetic head suspension assembly and method are designed to include a substantially inflexible support arm mounted at one end to an actuator motor in a data storage disk drive system. At the opposite end of the support arm is a gimbal. An air bearing slider having at least one read/write head is connected to the gimbal. The gimbal is adapted to accommodate pitch and roll motion and is compliant in the direction perpendicular to a surface of the data storage medium to be read. The gimbal is parallel-coupled with a load spring that is connected to the support arm to apply a load force. This arrangement improves the shock-resistance characteristics of the suspension assembly, since the support arm does not add to the inertial force caused by accelerations from shock events. In a preferred embodiment, the electrical connection to the read/write head is via electrical traces that are printed onto the support arm and gimbal. Traces are also formed on the gimbal springs to extend to a solder-reflow location at an interface to the slider.
摘要翻译：磁头悬挂组件和方法被设计成包括一个基本上不弯曲的支撑臂，其一端安装在数据存储盘驱动系统中的致动器马达上。在支撑臂的另一端是万向节。具有至少一个读/写头的空气轴承滑块连接到万向节。万向节适于适应俯仰和滚动运动，并且在垂直于要读取的数据存储介质的表面的方向上是顺应的。万向架与负载弹簧并联，负载弹簧连接到支撑臂以施加负载力。这种布置提高了悬架组件的抗冲击特性，因为支撑臂不会增加由冲击事件的加速度引起的惯性力。在优选实施例中，与读/写头的电连接是通过印刷到支撑臂和万向节上的电迹线。痕迹也形成在万向弹簧上，以延伸到与滑块的界面处的焊料回流位置。

34. 发明授权

US5388014A Apparatus and method of sensing the position of a magnetic head 失效
标题翻译：检测磁头位置的装置和方法
公开(公告)号：US5388014A
公开(公告)日：1995-02-07
申请号：US119468
申请日：1993-09-10
申请人： James A. Brug , Richard H. Henze , Steven L. Naberhuis
发明人： James A. Brug , Richard H. Henze , Steven L. Naberhuis
IPC分类号： G11B5/39 , G11B5/48 , G11B5/55 , G11B5/584 , G11B5/596 , G11B21/10 , G11B5/03 , G11B5/127 , G11B5/516 , G11R5/33
CPC分类号： G11B5/5547 , G11B5/3948 , G11B5/488 , G11B2005/0018 , G11B5/3954 , G11B5/584 , G11B5/59683
摘要： An apparatus and method for determining the position of a magnetic head from a magnetic track in a storage medium. The magnetic head includes two magneto-resistive elements electrically separated by an insulative layer; current leads for biasing the MR elements and rotating the magnetization of the MR elements in opposite directions that are transverse from the respective axes of the elements; and circuitry to monitor the resistance changes of the respective MR elements and producing respective first and second output signals and to manipulate the output signals to provide an indication of the cross-track position of the magnetic head relative to the magnetic track.
摘要翻译：一种用于从存储介质中的磁道确定磁头的位置的装置和方法。磁头包括由绝缘层电隔离的两个磁阻元件; 用于偏置MR元件并使MR元件的磁化沿与元件的各个轴线横向相反的方向旋转的电流引线; 以及用于监视各个MR元件的电阻变化并产生相应的第一和第二输出信号并且操纵输出信号以提供磁头相对于磁道的交叉磁道位置的指示的电路。

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