Micro miniature hard disk drive
    1.
    发明授权
    Micro miniature hard disk drive 失效
    微型微型硬盘驱动器

    公开(公告)号:US5291355A

    公开(公告)日:1994-03-01

    申请号:US850443

    申请日:1992-03-10

    摘要: A hard disk drive for a computer system including a head disk assembly with a disk platter of approximately one-and-eight-tenths-inch in diameter capable of storing more than forty megabytes. In an embodiment, data tracks on each data surface of the platter are spaced at approximately 2,558 tracks per inch and each data track has approximately 36,000 flux changes per inch. An actuator positions a pair of read/write heads on each platter surface using a voice coil motor to position the heads over a cylinder. A magnetic actuator latch attaches to another magnet on the actuator and locks the heads in a parked position at the innermost diameter of the platter. A spindle motor rotates the platter at approximately 5,400 revolutions per minute. A base plate, with a gasketed surface and a raised lip, hermetically seals with a cover to the base plate such that the platter, the actuator, the actuator latch, and the spindle motor are all contained within. The cover carries a breather filter and recirculating air filter. The raised lip on the base plate prevents direct electrical interference from passing between the base plate and the cover.

    摘要翻译: 一种用于计算机系统的硬盘驱动器,包括具有直径约为1/8至1/8英寸的盘片的磁头盘组件,其能够存储40多兆字节。 在一个实施例中,盘的每个数据表面上的数据轨迹以每英寸大约2,558轨道间隔开,并且每个数据轨道每英寸具有约36,000个通量变化。 致动器使用音圈马达在每个盘片表面上定位一对读/写头,以将磁头定位在气缸上。 磁性致动器闩锁附接到致动器上的另一个磁体,并将磁头锁定在盘片的最内部直径处的停放位置。 主轴电机以每分钟约5400转的速度旋转盘片。 具有垫圈表面和凸起唇缘的基板与盖板密封地密封到基板上,使得盘片,致动器,致动器闩锁和主轴马达都被包含在其中。 盖子带有通气过滤器和循环空气过滤器。 基板上的凸起唇缘可防止直接的电气干扰通过基板和盖板之间。

    Protective layer for magnetic disk
    2.
    发明授权
    Protective layer for magnetic disk 失效
    磁盘保护层

    公开(公告)号:US4861662A

    公开(公告)日:1989-08-29

    申请号:US10381

    申请日:1987-02-03

    摘要: A magnetic recording disk composed of a substrate, a magnetic layer, and a protective/lubricative carbon layer is etched and has oxygen embedded into the surface of the disk. This carbon/oxygen surface is extremely smooth, and wears better than prior art disks not having oxygen imbedded in the surface. This altered layer enables a magnetic disk to undergo over twice the number of start/stop cycles without incurring damage from magnetic transducers used to read information from the recording than similar disks prepared without oxygen in the outer layer. A method of plasma etching is used to embed the oxygen into the surface.

    摘要翻译: 蚀刻由基板,磁性层和保护/润滑碳层组成的磁记录盘,并且将氧气嵌入盘的表面。 该碳/氧表面非常光滑,并且比现有技术中没有嵌入表面的氧的圆盘更好地磨损。 该改变的层使得磁盘经历超过开始/停止周期数量的两倍,而不会从用于从记录读取信息的磁性换能器损坏,而不会损害外层中没有氧气的类似磁盘。 使用等离子体蚀刻的方法将氧气嵌入表面。