Patent ID: 8475670

Claim:
A method for manufacturing a magnetic media for magnetic data recording, comprising: providing a wafer, the wafer having a first region and a second region; depositing a first layer of hard mask material; patterning the first layer of hard mask with a first pattern; forming a first protective mask, the first protective mask covering at least a portion of the second region and leaving at least a portion of the first region uncovered; performing a first material removal process to remove portions of the wafer that are not protected by the patterned first layer of hard mask material or the first protective mask to from a recessed pattern in the first region; removing the first protective mask and the first layer of hard mask material; depositing a second layer of hard mask material; forming a second protective mask, the second protective mask covering at least a portion of the first region and leaving at least a portion of the second region uncovered; patterning the second layer of hard mask with a second pattern; and performing a second material removal process to remove a portion of the wafer that is not protected by the patterned second layer of hard mask material or the second protective mask to form a recessed pattern in the second region; wherein the first region and second region are either a servo region and a data region or a data region and a servo region.