Patent ID: 6710295
Filing Date: 2004-03-23
Classification: B21D,B23K,G11B

Abstract:
A method for producing very high crown and camber curvature in slider materials having a flex side and an air-bearing side using a laser processing system which produces a pulsed laser beam, comprising the steps of:(A) establishing a focal plane for the laser beam, the laser beam having a pulse width in the range of 1Ã—10âˆ’9 seconds to 1Ã—10âˆ’3 seconds, with an energy per pulse in the range of 1 to 1,000,000 microJoules, and a repetition rate between 1 Hz and 400 kHz; (B) applying the pulsed laser beam to the flex side of the slider material; and (C) varying the relative positions of the slider material and the focal plane of the laser beam to optimize the curvature.