Process management method using servo track writer
AssigneeSamsung Electronics Co., Ltd.
InventorJAE-SUNG LEE
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Abstract
A method of managing a manufacturing process of a hard disk drive having a disk as a recording medium. The disk is divided into a data band for writing user data and a plurality of protection bands. In the method, a serial number of the hard disk drive is read, the serial number is written in at least one of the bands during servo track writing, and the written serial number is read for use in the manufacturing process.
Claims20
A method, comprising:
- reading identification data from a first location, said identification data identifying a storage unit;
- writing encoded data corresponding to said identification data to a second location separately located from said first location, said second location being on said storage unit;
- and
- reading said encoded data from said second location on said storage unit.
An apparatus, comprising:
- a disk storing user data and encoded data;
- a first reading unit reading identification data identifying said disk;
- a writing unit writing said encoded data to said disk, said encoded data corresponding to said identification data;
- and
- a second reading unit reading said encoded data from said disk.
A method of managing a manufacturing process of a hard disk drive having a disk as a recording medium divided into a data region storing user data and a plurality of protection regions, comprising:
- reading a serial number of a hard disk drive, said hard disk drive having a plurality of subparts including a disk, said disk being divided into a data region storing user data and a plurality of protection regions;
- writing said serial number to at least one of said regions, said writing of said serial number being performed during a servo track writing;
- and
- reading said serial number from said at least one of said regions during a manufacturing process.
Dependencies are inferred from the claim text.