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1. 发明申请

US20090074949A1 MEASURING AND NEUTRALIZING THE ELECTRICAL CHARGE AT THE INTERFACE OF A MAGNETIC HEAD AND MEDIA 审中-公开
标题翻译：在磁头和介质界面测量和中和电荷
公开(公告)号：US20090074949A1
公开(公告)日：2009-03-19
申请号：US12275166
申请日：2008-11-20
申请人： Zhu FENG , Ellis CHA , Xiaofeng ZHANG
发明人： Zhu FENG , Ellis CHA , Xiaofeng ZHANG
IPC分类号： B05D5/00 , B05D3/14
CPC分类号： G11B5/60
摘要： A system and method for measuring and neutralizing the electrical charge at the interface of a magnetic head and a magnetic storage medium, such as a disk, is disclosed. A surface treatment material is applied to the magnetic head. The surface treatment material matches the medium surface material on the surface of the magnetic storage medium. The surface treatment material on the magnetic read/write head may be a fluorinated carbon, such as a Fomblin Z-derivative, perfluoro alkyl trichlorosilane, a FC-722, or a fluorinated polymer. The surface treatment material can be applied to the magnetic head by a vapor deposition process or by a liquid immersion process. The charge on the head-disk interface can be measured by applying varying external charges to the head while reading a signal previously written to the disk.
摘要翻译：公开了一种用于测量和中和磁头和诸如磁盘的磁存储介质的界面处的电荷的系统和方法。将表面处理材料施加到磁头。表面处理材料与磁性存储介质表面上的介质表面材料相匹配。磁读写头上的表面处理材料可以是氟化碳，如Fomblin Z衍生物，全氟烷基三氯硅烷，FC-722或氟化聚合物。表面处理材料可以通过气相沉积法或液浸法施加到磁头上。头磁盘接口上的电荷可以通过在读取先前写入磁盘的信号时向磁头施加变化的外部电荷来测量。

2. 发明申请

US20080285173A1 HYBRID COATING FOR MAGNETIC HEADS 审中-公开
标题翻译：磁头混合涂层
公开(公告)号：US20080285173A1
公开(公告)日：2008-11-20
申请号：US12103661
申请日：2008-04-15
申请人： Zhu FENG , Ellis CHA
发明人： Zhu FENG , Ellis CHA
IPC分类号： G11B5/187 , B05D5/12
CPC分类号： B82Y30/00 , G11B5/255 , Y10T428/11
摘要： A system and method for providing corrosion protection for a magnetic read/write head is disclosed. A monolayer surface coating is applied to cover those portions of the under layer of a magnetic read/write head not already covered by a previously applied diamond-like coating. This allows for a thinner diamond like coating than previously applied in the art. The monolayer surface coating can be a self-assembled monolayer, such as an organosilicon for hydroxylated surfaces or carboxylic acids for aluminum or other metal oxides. Alternatively, the monolayer surface coating can be directly applied to the under layer with no diamond-like coating being present. The monolayer surface coating can be applied by a surface immersion process or by a vacuum coating process.
摘要翻译：公开了一种用于为磁读/写头提供防腐蚀的系统和方法。施加单层表面涂层以覆盖未被先前施加的类金刚石涂层覆盖的磁读/写头的下层的那些部分。这允许比本领域中先前应用的更薄的金刚石类涂层。单层表面涂层可以是自组装单层，例如羟基化表面的有机硅或铝或其它金属氧化物的羧酸。或者，单层表面涂层可以直接施加到底层，而不存在类金刚石涂层。单层表面涂层可以通过表面浸渍法或真空镀膜法施加。

3. 发明申请

US20080123221A1 GIMBAL WITH ASYMMETRIC DYNAMIC PROPERTIES 有权
标题翻译： GIMBAL具有不对称动态特性
公开(公告)号：US20080123221A1
公开(公告)日：2008-05-29
申请号：US11564251
申请日：2006-11-28
申请人： Qinghua ZENG , Yen FU , Ellis CHA
发明人： Qinghua ZENG , Yen FU , Ellis CHA
IPC分类号： G11B5/48
CPC分类号： G11B5/4826
摘要： In a suspension in a hard disk drive, a gimbal with asymmetric dynamic properties, in which the two halves of the gimbal may have different stiffness distribution or inertia distribution. Structural difference between the two halves, or materials with different stiffness, may cause the different stiffness distribution or inertia distribution. When the suspension vibrates, the different stiffness and/or inertia distribution increase the friction between the gimbal and a load beam of the suspension, and increase the damping of the suspension.
摘要翻译：在硬盘驱动器的悬架中，具有不对称动态特性的万向架，其中万向节的两半可具有不同的刚度分布或惯性分布。两半之间的结构差异或具有不同刚度的材料可能导致不同的刚度分布或惯性分布。当悬架振动时，不同的刚度和/或惯性分布增加了万向节和悬架的载荷梁之间的摩擦力，并增加了悬架的阻尼。

4. 发明申请

US20080253025A1 METHOD AND APPARATUS FOR PROVIDING AN ADDITIONAL GROUND PAD AND ELECTRIC AL CONNECTION FOR GROUNDING A MAGNETIC RECORDING HEAD 有权
标题翻译：用于提供附加接地垫的方法和装置以及用于接地磁记录头的电气连接
公开(公告)号：US20080253025A1
公开(公告)日：2008-10-16
申请号：US12145464
申请日：2008-06-24
申请人： Yen FU , Ellis CHA , Po-Kang WANG , Hong TIAN , Manuel HERNANDEZ , Yaw-Shing TANG , Ben HU
发明人： Yen FU , Ellis CHA , Po-Kang WANG , Hong TIAN , Manuel HERNANDEZ , Yaw-Shing TANG , Ben HU
IPC分类号： G11B5/60
CPC分类号： H05K3/3442 , B24B37/00 , B24D18/00 , G11B5/4853 , H05K1/0215 , H05K2201/10727 , Y02P70/613
摘要： Method and apparatus are presented for electrically coupling a slider to ground. In one embodiment, a bonding pad is provided on a side of the slider body separate from the bonding pad(s) used for read/write signals. This separate bonding pad is electrically coupled within the slider body to components that are to be coupled to ground. A separate conductor provided on the suspension (e.g., a trace, a flex circuit, etc.) may be electrically coupled to the separate bonding pad via gold ball bonding. The conductor is also coupled to ground in the hard-disk drive device (e.g., via the preamplifier). The use of the separated bonding pad and trace may negate the need to use a conductive adhesive to electrically ground the slider via its attachment to the tongue of a slider.
摘要翻译：呈现用于将滑块电耦合到地面的方法和装置。在一个实施例中，接合焊盘设置在与用于读/写信号的接合焊盘分开的滑块体的一侧上。该单独的接合焊盘在滑块体内电耦合到要耦合到地面的部件。设置在悬架上的单独的导体（例如，迹线，柔性电路等）可以通过金球接合电耦合到单独的接合焊盘。导体也耦合到硬盘驱动装置中的接地（例如，经由前置放大器）。使用分离的接合焊盘和迹线可能会使得不需要使用导电粘合剂来将滑块经由其附接件电连接到滑块的舌部。

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