PATTERNED LASER ZONE TEXTURE

摘要

PROBLEM TO BE SOLVED: To provide a patterned laser zone texture. SOLUTION: This is a method of texturing a substrate 10 including rotation of the substrate 10 while laser pulses are impressed on the substrate 10. It is important that a rotational speed of substrate 10 varies while the substrate is being textured in order to vary an interval between laser bumps resulting from a periodical function. This helps to reduce or eliminate vibrations in a reading/writing head after the substrate 10 has been formed into a magnetic disk and when the magnetic disk is used.