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1. 发明授权

US08189281B2 Magnetic recording disk drive with write driver to write head transmission line having non-uniform sections for optimal write current pulse overshoot 有权
标题翻译：具有写驱动器的磁记录磁盘驱动器，其写头传输线具有不均匀的部分，用于最佳写入电流脉冲过冲
公开(公告)号：US08189281B2
公开(公告)日：2012-05-29
申请号：US12641362
申请日：2009-12-18
申请人： Michael Alex , John Thomas Contreras , Nobumasa Nishiyama
发明人： Michael Alex , John Thomas Contreras , Nobumasa Nishiyama
IPC分类号： G11B5/09 , G11B5/48
CPC分类号： G11B5/02 , G11B5/484 , G11B5/4853 , G11B5/486 , G11B2005/0002
摘要： An interconnect between the write driver and the write head in a magnetic recording disk drive enables an inherent write current overshoot. The interconnect includes an integrated lead suspension (ILS) and a short flex cable that connects the write driver circuitry to the ILS. The interconnect is a two-segment transmission line, with the first segment connected to the write driver having multiple sub-segments or sections with non-uniform impedance levels. The section of the first segment that connects to the write driver is the short flex cable and has an impedance substantially higher than the source impedance ZWD of the write driver. The multiple sections of the first segment have non-uniform impedance values that have an effective impedance Z01-eff that substantially matches ZWD. The second segment of the transmission line has an effective impedance Z02-eff that is substantially less than Z01-eff. The write lines for the +W and −W signals are preferably interleaved on the transmission line sections.
摘要翻译：磁记录盘驱动器中的写入驱动器和写入头之间的互连使得能够产生固有的写入电流过冲。互连包括集成引线悬架（ILS）和将写入驱动器电路连接到ILS的短柔性电缆。互连是双段传输线，其中第一段连接到具有不均匀阻抗水平的多个子段或部分的写驱动器。连接到写驱动器的第一段的部分是短柔性电缆，并且具有显着高于写驱动器的源阻抗ZWD的阻抗。第一段的多个部分具有不均匀的阻抗值，其具有基本上与ZWD匹配的有效阻抗Z01-eff。传输线的第二段具有实质上小于Z01-eff的有效阻抗Z02-eff。用于+ W和-W信号的写入线优选地在传输线部分上交错。

2. 发明申请

US20110149441A1 MAGNETIC RECORDING DISK DRIVE WITH WRITE DRIVER TO WRITE HEAD TRANSMISSION LINE HAVING NON-UNIFORM SECTIONS FOR OPTIMAL WRITE CURRENT PULSE OVERSHOOT 有权
标题翻译：具有写入驱动器的磁性记录盘驱动器具有非均匀部分的写入头部传输线，用于最佳写入电流脉冲过电压
公开(公告)号：US20110149441A1
公开(公告)日：2011-06-23
申请号：US12641362
申请日：2009-12-18
申请人： Michael Alex , John Thomas Contreras , Nobumasa Nishiyama
发明人： Michael Alex , John Thomas Contreras , Nobumasa Nishiyama
IPC分类号： G11B21/16
CPC分类号： G11B5/02 , G11B5/484 , G11B5/4853 , G11B5/486 , G11B2005/0002
摘要： An interconnect between the write driver and the write head in a magnetic recording disk drive enables an inherent write current overshoot. The interconnect includes an integrated lead suspension (ILS) and a short flex cable that connects the write driver circuitry to the ILS. The interconnect is a two-segment transmission line, with the first segment connected to the write driver having multiple sub-segments or sections with non-uniform impedance levels. The section of the first segment that connects to the write driver is the short flex cable and has an impedance substantially higher than the source impedance ZWD of the write driver. The multiple sections of the first segment have non-uniform impedance values that have an effective impedance Z01-eff that substantially matches ZWD. The second segment of the transmission line has an effective impedance Z02-eff that is substantially less than Z01-eff. The write lines for the +W and −W signals are preferably interleaved on the transmission line sections.
摘要翻译：磁记录盘驱动器中的写入驱动器和写入头之间的互连使得能够产生固有的写入电流过冲。互连包括集成引线悬架（ILS）和将写入驱动器电路连接到ILS的短柔性电缆。互连是双段传输线，其中第一段连接到具有不均匀阻抗水平的多个子段或部分的写驱动器。连接到写驱动器的第一段的部分是短柔性电缆，并且具有显着高于写驱动器的源阻抗ZWD的阻抗。第一段的多个部分具有不均匀的阻抗值，其具有基本上与ZWD匹配的有效阻抗Z01-eff。传输线的第二段具有实质上小于Z01-eff的有效阻抗Z02-eff。用于+ W和-W信号的写入线优选地在传输线部分上交错。

3. 发明授权

US07489479B2 Electrical lead suspension having partitioned air slots 有权
标题翻译：具有分隔空气槽的电气引线悬架
公开(公告)号：US07489479B2
公开(公告)日：2009-02-10
申请号：US11037906
申请日：2005-01-18
申请人： Satya Prakash Arya , John Thomas Contreras , Klaas Klaassen , Nobumasa Nishiyama
发明人： Satya Prakash Arya , John Thomas Contreras , Klaas Klaassen , Nobumasa Nishiyama
IPC分类号： G11B5/48
CPC分类号： H05K1/0224 , G11B5/486 , H05K1/0253 , H05K1/056 , H05K2201/09681
摘要： An electrical lead suspension (ELS) having partitioned air slots. The ELS includes a laminate. A first plurality of signal traces and a second plurality of traces are in a first formed layer of the laminate. The second plurality of traces may be signal traces or power traces. The laminate has a dielectric layer between the first formed layer and a second formed layer. A plurality of partitioned air slots is in the second formed layer of the laminate. The portion of the ELS having a plurality of partitioned air slots supporting the at least the first plurality of signal traces and the portion of the ELS having a second plurality of partitioned air slots or patterns supporting the second plurality of traces. The supporting of the first plurality of signal traces separate from the second plurality of traces reduces write-to-read cross talk and signal loss. Offsetting the first plurality of air slots from second plurality of air slots further reduces cross talk and signal loss and restores some of the structural rigidity lost due to in line (e.g., aligned) slots.
摘要翻译：具有分隔空气槽的电引线悬架（ELS）。 ELS包括层压板。第一多个信号迹线和第二多个迹线位于层叠体的第一成形层中。第二多个迹线可以是信号迹线或功率迹线。层压体在第一成形层和第二成形层之间具有介电层。多个分隔的空气槽位于层叠体的第二成形层中。 ELS的部分具有支撑至少第一多个信号迹线的多个分隔的空气槽，并且ELS的部分具有支撑第二多个迹线的第二多个分隔的空气槽或图案。与第二多个迹线分离的第一多个信号迹线的支持降低了写入 - 读取串扰和信号丢失。从第二多个空气槽中偏移第一组多个空气槽进一步减少串扰和信号损失，并且恢复由于在线（例如对准的）槽而损失的一些结构刚度。

4. 发明授权

US07352535B2 Method and apparatus for reducing crosstalk and signal loss in flexing interconnects of an electrical lead suspension 有权
标题翻译：用于减少电引线悬架的弯曲互连中的串扰和信号损失的方法和装置
公开(公告)号：US07352535B2
公开(公告)日：2008-04-01
申请号：US11035429
申请日：2005-01-13
申请人： Satya Prakash Arya , John Thomas Contreras , Klaas Berend Klaassen , Nobumasa Nishiyama
发明人： Satya Prakash Arya , John Thomas Contreras , Klaas Berend Klaassen , Nobumasa Nishiyama
IPC分类号： G11B5/54
CPC分类号： H05K1/0253 , G11B5/484 , G11B5/486 , H05K1/0393 , H05K1/056 , H05K2201/09263
摘要： A method and apparatus for reducing crosstalk and signal loss in an electrical interconnect is disclosed. The electrical interconnect includes a laminate. A plurality of signal traces and a subsequent plurality of traces are in a first formed layer of the laminate. The subsequent plurality of traces may be signal traces or power traces. The laminate has a dielectric layer between the first formed layer and a second formed layer. A plurality of serpentine patterns are in the second formed layer of the laminate. The plurality of serpentine patterns is separated from subsequent patterns. The plurality of serpentine patterns supports the plurality of signal traces and the subsequent plurality of patterns supports the subsequent plurality of traces. The supporting of the plurality of signal traces separate from the subsequent plurality of traces reduces write-to-read crosstalk and signal loss.
摘要翻译：公开了用于减少电互连中的串扰和信号损耗的方法和装置。电互连包括层压板。多个信号迹线和随后的多个迹线位于层叠体的第一成形层中。随后的多个迹线可以是信号迹线或功率迹线。层压体在第一成形层和第二成形层之间具有介电层。多个蛇形图案位于层压板的第二成形层中。多个蛇形图案与随后的图案分离。多个蛇形图案支持多个信号迹线，随后的多个图案支持随后的多个迹线。与随后的多个迹线分离的多个信号迹线的支持降低了写入 - 读取串扰和信号丢失。

5. 发明申请

US20120008237A1 WIDE-BANDWIDTH DIELECTRIC WINDOWING FOR CONDUCTOR SUSPENSION STRUCTURE 审中-公开
标题翻译：用于导体悬挂结构的宽带宽电介质窗
公开(公告)号：US20120008237A1
公开(公告)日：2012-01-12
申请号：US12832531
申请日：2010-07-08
申请人： John Thomas Contreras , Bruce Alvin Gurney , Nobumasa Nishiyama
发明人： John Thomas Contreras , Bruce Alvin Gurney , Nobumasa Nishiyama
IPC分类号： G11B5/60
CPC分类号： G11B5/486
摘要： Approaches for a hard-disk drive suspension interconnect having a wide bandwidth. A suspension interconnect includes a substrate layer, a dielectric layer disposed on the substrate layer, and a plurality of transmission-line (TL) conductors disposed within the dielectric layer. Air gaps may be disposed around the TL conductors to minimize the tendency of the dielectric material to act as an electrical shunt, which impedes high bandwidth signal transmission. An air gap may exist in the dielectric layer between adjacent TL conductors. Additionally, the area adjacent to the plurality of TL conductors, along the direction of signal travel, may alternate between dielectric material and air gaps. Indeed, there need not be any solid material enclosing the TL conductors save for a plurality of dielectric cross ties that provide structural support thereto. The substrate layer may also comprise one or more air gaps underneath a portion of the plurality of TL conductors.
摘要翻译：具有宽带宽的硬盘驱动器悬挂互连的方法。悬置互连件包括衬底层，设置在衬底层上的电介质层和布置在电介质层内的多个传输线（TL）导体。可以在TL导体周围设置空气间隙，以最小化电介质材料作为电分流的趋势，这阻碍了高带宽信号传输。相邻TL导体之间的电介质层中可能存在气隙。此外，沿着信号行进方向与多个TL导体相邻的区域可以在介电材料和气隙之间交替。实际上，除了为其提供结构支撑的多个介电交叉连接件之外，不需要包围TL导体的任何固体材料。衬底层还可以包括在多个TL导体的一部分下方的一个或多个气隙。

6. 发明申请

US20120162825A1 INTERLEAVED CONDUCTOR STRUCTURE WITH WRAP AROUND TRACES 有权
标题翻译：带缠绕线的交流导体结构
公开(公告)号：US20120162825A1
公开(公告)日：2012-06-28
申请号：US12976899
申请日：2010-12-22
申请人： JOHN T. CONTRERAS , Nobumasa Nishiyama , Edgar D. Rothenberg , Rehan A. Zakai , Yiduo Zhang
发明人： JOHN T. CONTRERAS , Nobumasa Nishiyama , Edgar D. Rothenberg , Rehan A. Zakai , Yiduo Zhang
IPC分类号： G11B5/48
CPC分类号： G11B5/486
摘要： An interleaved conductor structure for electrically connecting the read/write electronics to a read/write head in a hard disk drive is provided. The interleaved conductor structure may allow for an increased characteristic-impedance range, greater interference shielding and a reduction of signal loss that is contributed by a lossy conductive substrate. The electrical traces may have different widths, be offset, or even wrap around each other at the via connections.
摘要翻译：提供了用于将读/写电子学电连接到硬盘驱动器中的读/写头的交错导体结构。交错的导体结构可以允许增加的特性阻抗范围，更大的干扰屏蔽和降低由有损导电基底所贡献的信号损失。电迹线可能具有不同的宽度，偏移，或甚至在通孔连接处彼此缠绕。

7. 发明授权

US08194356B2 Head-stack assembly including heat-dissipation and impedance-matching structure and hard-disk drive using the head-stack assembly 有权
标题翻译：头堆叠组件包括散热和阻抗匹配结构以及使用磁头组合组件的硬盘驱动器
公开(公告)号：US08194356B2
公开(公告)日：2012-06-05
申请号：US12644358
申请日：2009-12-22
申请人： Kazuhiro Nagaoka , Tatemi Ido , Nobumasa Nishiyama , Yuji Soga
发明人： Kazuhiro Nagaoka , Tatemi Ido , Nobumasa Nishiyama , Yuji Soga
IPC分类号： G11B5/55
CPC分类号： G11B5/486
摘要： A head-stack assembly. The head-stack assembly includes: a magnetic-recording head; a lead-suspension supporting the magnetic-recording head on an actuator arm; a metal plate coupled with the actuator arm; a resin layer disposed on the metal plate; a flexible-printed-circuit board disposed on the resin layer, and substantially perpendicularly connected to the lead-suspension; a arm-electronics module disposed on the flexible-printed-circuit board configured to shape a write-signal current waveform of a write signal to said magnetic-recording head; transmission lines disposed on the flexible-printed-circuit board configured to transmit the write signal to, and a read-back signal from, the lead-suspension; and, a single intermediate conductor layer that is disposed between the resin layer and the flexible-printed-circuit board, and having a planar shape substantially facing a bottom of the arm-electronics module and a bottom of the transmission lines.
摘要翻译：顶部堆叠组件。磁头堆叠组件包括：磁记录头; 将磁记录头支撑在致动器臂上的引导悬架; 与致动器臂联接的金属板; 设置在所述金属板上的树脂层; 柔性印刷电路板，设置在树脂层上，并且基本垂直地连接到引线悬架; 布置在所述柔性印刷电路板上的手臂电子模块，其被配置成将写入信号的写入信号电流波形整形到所述磁记录头; 布置在柔性印刷电路板上的传输线被配置为将写入信号传送到引线悬架;和读取信号; 以及设置在树脂层和柔性印刷电路板之间并且具有基本上面对臂电子模块的底部的平面形状和传输线的底部的单个中间导体层。

8. 发明授权

US08102628B2 Disk drive and head assembly having hole sequences 有权
标题翻译：具有孔序列的磁盘驱动器和磁头组件
公开(公告)号：US08102628B2
公开(公告)日：2012-01-24
申请号：US11726614
申请日：2007-03-21
申请人： Ryohei Ota , Eiji Soga , Nobumasa Nishiyama , Hiroyasu Tsuchida
发明人： Ryohei Ota , Eiji Soga , Nobumasa Nishiyama , Hiroyasu Tsuchida
IPC分类号： G11B21/16 , G11B5/48
CPC分类号： G11B5/486
摘要： Embodiments disclose hole sequences that are formed in the metal layer of a trace to adjust rigidity and crosstalk noise resulting from the hole sequences is thereby suppressed. A suspension according to one aspect of the invention includes a trace adapted to transmit a signal of a head slider. The trace partially extends along the side surface of the suspension. The trace includes a metal layer, a plurality of transmission lines formed above the metal layer and an insulating layer. A hole sequence overlapping the transmission lines is formed in part of the metal layer, which contributes to a reduction in transmission loss. Another hole sequence of the metal layer is formed at a position opposed to the hinge portion of the suspension. This reduces the rigidity of the wiring structure portion in the hinge portion, thereby preventing interference with the behavior of the suspension at the hinge portion.
摘要翻译：实施例公开了在痕迹的金属层中形成的调整刚性的孔序列，从而抑制由空穴序列产生的串扰噪声。根据本发明的一个方面的悬架包括适于传输磁头滑块的信号的轨迹。轨迹部分沿着悬架的侧表面延伸。迹线包括金属层，形成在金属层上方的多条传输线和绝缘层。与传输线重叠的孔序列形成在金属层的一部分中，这有助于传输损耗的降低。金属层的另一个孔序列形成在与悬架的铰链部分相对的位置处。这就降低了铰链部分中的布线结构部分的刚度，从而防止了在铰链部分处的悬架的行为的干扰。

9. 发明授权

US08068313B2 Microactuator, head gimbal assembly, and disk drive device 有权
标题翻译：微型致动器，头万向架组件和磁盘驱动器
公开(公告)号：US08068313B2
公开(公告)日：2011-11-29
申请号：US12271820
申请日：2008-11-14
申请人： Nobumasa Nishiyama , Ryo Yoshida , Haruhide Takahashi , Shinobu Hagiya , Toshiki Hirano
发明人： Nobumasa Nishiyama , Ryo Yoshida , Haruhide Takahashi , Shinobu Hagiya , Toshiki Hirano
IPC分类号： G11B5/48
CPC分类号： G11B5/4826 , G11B5/4873 , G11B5/5552
摘要： Embodiments of the present invention relate to approaches to effectively let noise on a head slider bonded to a silicon substrate of a microactuator, escape to the ground. A head gimbal assembly (HGA) according to an embodiment of the present invention comprises a microactuator bonded to a gimbal tongue. The microactuator comprises a piezoelectric element and a movable part for moving in response to expansion or contraction of the piezoelectric element. The motion of the movable part causes a head slider to slightly move. The microactuator further comprises a conductive path including an impurity-containing silicon layer formed on the silicon substrate. The conductive path transmits electric charge of the head slider to a suspension. The conductivity of the impurity-containing silicon layer is lower than the one of the silicon substrate so that the noise charge of the head slider may escape to the suspension.
摘要翻译：本发明的实施例涉及有效地使结合到微致动器的硅衬底的磁头滑块上的噪声逃逸到地面的方法。根据本发明的实施例的头万向节组件（HGA）包括结合到万向节舌的微致动器。微致动器包括压电元件和用于响应于压电元件的膨胀或收缩而移动的可移动部件。可移动部分的运动导致磁头滑块稍微移动。微致动器还包括导电路径，该导电路径包括在硅衬底上形成的含杂质的硅层。导电路径将磁头滑块的电荷传递到悬架。含杂质的硅层的导电率低于硅衬底的电导率，使得磁头滑块的噪声电荷可能逸出到悬架。

10. 发明申请

US20070247744A1 Disk drive and control method thereof 有权
标题翻译：磁盘驱动器及其控制方法
公开(公告)号：US20070247744A1
公开(公告)日：2007-10-25
申请号：US11789626
申请日：2007-04-24
申请人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Nobumasa Nishiyama
发明人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Nobumasa Nishiyama
IPC分类号： G11B21/02
CPC分类号： G11B5/6064 , G11B5/6005
摘要： Embodiments in accordance with the present invention reduce the structural stress applied to a head, and to achieve the effective control, when the clearance between the head and a disk is adjusted by using a heater. According to one embodiment, the hard disk controller/microprocessing unit (HDC/MPU) controls a slew rate of a heater at the time of TFC (Thermal Fly height Control). In response to processing conditions, a HDC/MPU changes a slew rate of the output of electric current/voltage applied to the heater. This makes it possible to reduce the head stress, and to achieve the effective TFC. To be more specific, with reference to a temperature/slew rate table, the HDC/MPU changes a slew rate in response to the temperature in the read/write processing.
摘要翻译：根据本发明的实施例，通过使用加热器调节头部和盘片之间的间隙时，降低施加在头部上的结构应力，并实现有效的控制。根据一个实施例，硬盘控制器/微处理单元（HDC / MPU）在TFC（热飞行高度控制）时控制加热器的转换速率。响应于处理条件，HDC / MPU改变加到加热器上的电流/电压输出的转换速率。这使得可以减小头部应力，并实现有效的TFC。更具体地，参考温度/转换速率表，HDC / MPU根据读/写处理中的温度改变转换速率。

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