Patent ID: 7656603

Claim:
A self servo-writing disk drive that pre-programs a preamplifier to improve servo-writing characteristics, the self servo-writing disk drive comprising: a head to write and read servo sectors to and from a disk; a preamplifier coupled to the head to amplify servo signals associated with the servo sectors, the preamplifier having preamplifier write settings that are programmable; a processor to implement operations including: writing servo sectors to define track bands according to sets of write setting values, the preamplifier adjusting write signals utilizing a set of write setting values for each track band; determining servo variable gain amplifier values associated with the tracks bands; selecting a set of write setting values associated with a minimum servo variable amplifier gain; programming the preamplifier write settings with the selected set of write setting values; and self servo-writing the disk with servo sectors utilizing the selected set of write setting values.