Methods and apparatus for controlling the lapping of a slider based on an amplitude of a readback signal produced from an externally applied magnetic field

• Main Authors: BEAUCAGE JACEY ROBERT, CRAWFORTH LINDEN J, WU XIAO Z
• Format: Patent
• Language: English
• Published: 17.06.2008
• Subjects: COMBINED OPERATIONS; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; INFORMATION STORAGE; MACHINE TOOLS; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; PHYSICS; POLISHING; STATIC STORES; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The lapping of a slider is controlled based on an amplitude of a readback signal which is produced from an externally applied magnetic field. A lapping plate is used to lap a slider which includes at least one magnetic head having a read sensor. During the lapping, a coil produces a magnetic field a...