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    • 42. 发明申请
    • AIR BEARING GAP CONTROL FOR INJECTION MOLDED SOLDER HEADS
    • 注射成型焊枪头的空气轴承挡板控制
    • US20080302860A1
    • 2008-12-11
    • US11760813
    • 2007-06-11
    • Glen N. BiggsTimothy J. ChainerJohn P. KaridisDennis G. ManzerChristopher L. Tessler
    • Glen N. BiggsTimothy J. ChainerJohn P. KaridisDennis G. ManzerChristopher L. Tessler
    • B23K31/02
    • B23K3/0623
    • An air bearing gap control arrangement for injection molded solder filler heads. Also provided is a method of providing for a gap control for injection molded solder filler heads utilizing an air bearing arrangement. Provided is a C-ring seal, at the lower or dispensing region of the solder filler head structure, wherein the C-shape is open at the leading edge thereof. Hereby, a prevalent leading edge gap is tightly controlled by means of pressurized air in order to form an air bearing. Downstream of this leading edge is the molten solder, which is contained within a very narrow gap height between the solder filler head and the mold. As the solder fills the pits or recesses which are formed in the mold surface, air will rush out or be displaced from the pits towards the air bearing and is then expelled, while the deposited solder remains in place.
    • 用于注射成型焊料填充头的空气轴承间隙控制装置。 还提供了一种利用空气轴承装置为注射成型的焊料填充头提供间隙控制的方法。 提供了在焊料填充头结构的下部或分配区域处的C形环密封件,其中C形在其前缘处是敞开的。 因此,为了形成空气轴承,通过加压空气严格控制流行的前缘间隙。 该前沿的下游是熔融焊料,其被包含在焊料填充头和模具之间的非常窄的间隙高度内。 当焊料填充形成在模具表面中的凹坑或凹槽时,空气将从凹坑向空气轴承移出或移出,然后排出,同时沉积的焊料保持在适当的位置。
    • 44. 发明授权
    • Timing mark position error correction in self-servo write
    • 自伺服写入中的定时标记位置误差校正
    • US07016140B1
    • 2006-03-21
    • US10990913
    • 2004-11-16
    • Mark D. SchultzTimothy J. Chainer
    • Mark D. SchultzTimothy J. Chainer
    • G11B21/10
    • G11B5/59633G11B5/59666
    • Embodiments of the present invention provide a technique to correct timing mark position error in self-servo write (SSW). In one embodiment, a method of correcting a timing mark position error of a SSW pattern of a disk drive comprises writing a plurality of timing mark bursts over a plurality of steps on a disk, the plurality of timing mark bursts including at least one misaligned burst having an intentional misalignment in a first step with respect to a corresponding burst in a neighboring second step; reading the misaligned burst and the corresponding burst at a seam between the first step and the second step to obtain a measured burst amplitude; and using the measure burst amplitude to obtain a timing mark position error, which may involve comparing the measured burst amplitude and an expected burst amplitude computed based on the intentional misalignment between the misaligned burst and the corresponding burst to obtain a timing mark position error.
    • 本发明的实施例提供了一种校正自伺服写入(SSW)中的定时标记位置误差的技术。 在一个实施例中,校正磁盘驱动器的SSW模式的定时标记位置误差的方法包括在盘上的多个步骤上写入多个定时标记脉冲串,所述多个定时标记脉冲串包括至少一个未对准脉冲串 在相邻的第二步骤中相对于相应的突发在第一步骤中有意的未对准; 在第一步骤和第二步骤之间的接缝处读取不对齐的突发和相应的突发,以获得测量的突发幅度; 并且使用测量脉冲串幅度来获得定时标记位置误差,其可以涉及比较所测量的脉冲串幅度和基于未对准脉冲串与对应脉冲串之间的有意错位而计算出的预期脉冲串幅度,以获得定时标记位置误差。