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Polymer bumps for trace and shock protection

  • US 6,201,664 B1
  • Filed: 11/16/1998
  • Issued: 03/13/2001
  • Est. Priority Date: 11/16/1998
  • Status: Expired due to Fees
First Claim
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1. An integrated lead suspension for a hard disk drive having a rotatable magnetic disk and an actuator comb with a mount plate for pivotal interaction with the magnetic disk, comprising:

  • a weldment mounted to and extending from the mount plate;

    an integrated lead layer mounted to the weldment and having a magnetic head with traces extending therefrom mounted on an insulative substrate, the lead layer having a height which is measured from a surface of the weldment to an outer surface of the traces; and

    a protrusion on the weldment adjacent to at least one lateral side of the traces, the protrusion having a height which is greater than the height of the integrated lead layer for preventing contact between the traces and a magnetic disk; and

    wherein the protrusion is formed from a material that is softer than the magnetic disk, and wherein the protrusion has at least one bump extending therefrom.

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