Method for regulating shape of floatation surface of slider floating above record carrier

A method for manufacturing a slider including a head for recording data into and reproducing data from a record carrier, and a floatation surface that floats above the record carrier, said method comprising the steps of:

• obtaining a relationship among a crown, a camber, and a twist when the laser is irradiated onto a rear surface of the floatation surface on a predetermined irradiation condition, the crown representing a deformation of the floatation surface in a longitudinal direction, the camber representing a deformation of the floatation surface in a transverse direction orthogonal to the longitudinal direction, and the twist representing a deformation of the floatation surface in a diagonal direction;
• and
• regulating, using the relationship, a shape of the floatation surface, when at least one of the crown, the camber, and the twist deviate from a permissible range.

A computer-implemented program for implementing a method for manufacturing a slider including a head for recording data into and reproducing data from a record carrier, and a floatation surface that floats above the record carrier, said method comprising the steps of setting an orthogonal coordinate system having an origin as a center of the floatation surface, and regulating a shape of the floatation surface by using laser to scan a rear surface of the floatation surface so that each of plural positions set by the orthogonal coordinate system may possess flatness within a permissible range.

A computer-implemented program for implementing a method for manufacturing a slider including a head for recording data into and reproducing data from a record carrier, and a floatation surface that floats above the record carrier, said method comprising the steps of determining a correction target from among parameters based on a measurement result about the parameters, when the measurement result shows that at least one of the parameters deviate from a permissible range, the parameters including a crown representative of a deformation of the floatation surface in a longitudinal direction, a camber representative of a deformation of the floatation surface in a transverse direction orthogonal to the longitudinal direction, and a twist representative of a deformation of the floatation surface in a diagonal direction, setting a laser irradiation condition so as to correct said at least one parameter, and regulating a shape of the floatation surface by irradiating laser onto a rear surface of the floatation surface in accordance with the laser irradiation condition set by said setting step.

A computer-implemented program for implementing a method for manufacturing a slider including a head for recording data into and reproducing data from a record carrier, and a floatation surface that floats above the record carrier, said method comprising the steps of obtaining a relationship among a crown, a camber, and a twist when the laser is irradiated onto a rear surface of the floatation surface on a predetermined irradiation condition, the crown representing a deformation of the floatation surface in a longitudinal direction, the camber representing a deformation of the floatation surface in a transverse direction orthogonal to the longitudinal direction, and the twist representing a deformation of the floatation surface in a diagonal direction, and regulating, using the relationship, a shape of the floatation surface, when at least one of the crown, the camber, and the twist deviate from a permissible range.

A drive which drives a record carrier, said drive comprising:

• a head for recording data into and reproducing data from the record carrier;
• and
• a slider, mounted with said head, which includes a floatation surface that floats above the record carrier, said slider being manufactured by a method comprising the steps of setting an orthogonal coordinate system having an origin as a center of the floatation surface that has been processed, and regulating a shape of the floatation surface by using laser to scan a rear surface of the floatation surface so that each of plural positions set by the orthogonal coordinate system may possess flatness within a permissible range.

A drive which drives a record carrier, said drive comprising:

• a head for recording data into and reproducing data from the record carrier;
• and
• a slider, mounted with said head, which includes a floatation surface that floats above the record carrier, said slider being manufactured by a method comprising the steps of determining a correction target from among parameters based on a measurement result about the parameters, when the measurement result shows that at least one of the parameters deviate from a permissible range, the parameters including a crown representative of a deformation of the floatation surface in a longitudinal direction, a camber representative of a deformation of the floatation surface in a transverse direction orthogonal to the longitudinal direction, and a twist representative of a deformation of the floatation surface in a diagonal direction, setting a laser irradiation condition so as to correct said at least one parameter, and regulating a shape of the floatation surface by irradiating laser onto a rear surface of the floatation surface in accordance with the laser irradiation condition set by said setting step.

A drive which drives a record carrier, said drive comprising:

• a head for recording data into and reproducing data from the record carrier;
• and
• a slider, mounted with said head, which includes a floatation surface that floats above the record carrier, said slider being manufactured by a method comprising the steps of obtaining a relationship among a crown, a camber, and a twist when the laser is irradiated onto a rear surface of the floatation surface on a predetermined irradiation condition, the crown representing a deformation of the floatation surface in a longitudinal direction, the camber representing a deformation of the floatation surface in a transverse direction orthogonal to the longitudinal direction, and the twist representing a deformation of the floatation surface in a diagonal direction, and regulating, using the relationship, a shape of the floatation surface, when at least one of the crown, the camber, and the twist deviate from a permissible range.