Head Disk Assembly

Conduct Research

• Using Alpha Ionization to Optimize Performance of a Spin Station
  . The floating assembly, which can become charged, includes the spindle and the media. Both are electrical conductors, so placing the ionizer 1" from any part of the media and spindle assembly will discharge the disk and protect the head. One implementation is shown in Figure 4. The location of the P-2042...
• MICRO: Special Apps
  current in the coil, which was then transmitted back as a 1 or a 0. The whole assembly was called an inductive read/write head and flew over the surface of the disk on a very thin layer of air. The use of a single coil for both reading and writing functions affected the performance of the hard disk...
• Shock, awe, and vibration
  but to pack sensitive electronics and tiny mechanical components more closely. Within these tight quarters, however, there's often little room left for shock mounts and vibration isolators. These components protect printed-circuit boards, LCDs, disk-drive components (spindle motors, heads, head arms...
• Spring Arm
  Problem: Prototype models of this part (for a read/write head of a computer disk drive assembly) used an electronic beam-welded assembly. As conceived by the customer's design team, this part called for a 5-piece assembly that included welding four seams....
• Micro-Stepper Motors Bring Pictures into Focus
  ; it is worn as a head set. Miniature stepper motors control magnification and focus for each eye. A crystal-clear 3D view allows operations on even the smallest of vessels as well as the investigation or assembly of microscopic structures - without straining the eyes. Head Mounted Vision System...
• Powder Metal Designs Win PowderMet 2009 Awards
  . To withstand the temperature and pressures inside the cylinder head, the manifold's minimum yield strength is 50 ksi with an ultimate tensile strength of 60 ksi. Jacobs estimates the PM part, including machining a bore for the solenoid and two port holes, cost 20% less than casting. Three...
• Smart Computing Article - Diskette Drives
  is they're technologically simple. A diskette drive basically has three parts: a spindle motor, which spins the diskette when it is inserted into the drive; a stepper motor, which positions the head that reads data from and writes data to the diskette; and a controller card, which contains the circuitry...
• MICRO:June 98:Movin' On
  director of lithography. Gross has worked for since 1980, most recently serving as the head of worldwide lithography coordination. At International Sematech, he replaces Karen Brown, who returns to IBM following a four-year assignment at the Austin, TX based consortium. . . . The presented...
• Smart Computing Article - Step 12: Test Your System
  up healthy. If necessary, get into your (Basic Input/Output System; BIOS routines control the startup process of the machine and other basic functions, such as the keyboard, display, and disk drives) to configure your peripherals. If. Smart Computing Article - Step 12: Test Your System. Subscribe...
• MICRO:Product Technology News (Oct '99)
  , it permits users to completely control image contrast, brightness, color, edge enhancement, and parallel-port digital-image computer transfer. An optional 6.4-in. LCD color display, which is offered for the convenient viewing of the subject, is mounted on the camera's remote head for simple...

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