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Shorted magnetoresistive head leads for electrical overstress and electrostatic discharge protection during manufacture of a magnetic storage system

  • US 5,465,186 A
  • Filed: 01/26/1994
  • Issued: 11/07/1995
  • Est. Priority Date: 01/26/1994
  • Status: Expired due to Term
First Claim
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1. A method for protecting a magnetoresistive sensor element in a magnetic head assembly from damage caused by electrostatic discharge during fabrication of said magnetic head assembly and subsequent handling and assembly of said magnetic head assembly in a magnetic storage system, said method comprising the steps of:

  • electrically connecting said magnetoresistive sensor element conductive leads together for providing a short circuit path shunting said magnetoresistive sensor element;

    electrically connecting said magnetoresistive sensor element to external circuitry, said external circuitry comprising at least one protective device being electrically connected for providing a current bypass path for said magnetoresistive sensor element, said protective device shorted by said short circuit path; and

    opening said short circuit path in parallel with said magnetoresistive sensor element at a desired process or assembly step prior to the completion of said subsequent handling of and assembly of said magnetic head assembly in a magnetic storage system.

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