초록 ▼

Methods and apparatus are provided for creating servo-tracks on the R-side of single-sided hard memory disks. The method includes placing two single-sided disks in a concentric contact merge orientation with the R-side of each disk facing outwardly. Two independent servo-track writers then position

Methods and apparatus are provided for creating servo-tracks on the R-side of single-sided hard memory disks. The method includes placing two single-sided disks in a concentric contact merge orientation with the R-side of each disk facing outwardly. Two independent servo-track writers then position an independent transducer proximate each R-side and write desired servo-track data to the R-side surface of each disk. The disks are de-merged and either disk may be placed in any single-sided disk drive.

대표청구항 ▼

What is claimed is: 1. A method of manufacturing hard disks by writing servo-tracks on the hard memory disks, comprising: a. merging a pair of disks such that a first surface of one disk is in contact with a first surface of a second disk, the outer perimeters of the two disks are aligned, and the

What is claimed is: 1. A method of manufacturing hard disks by writing servo-tracks on the hard memory disks, comprising: a. merging a pair of disks such that a first surface of one disk is in contact with a first surface of a second disk, the outer perimeters of the two disks are aligned, and the second surface of each disk face outwardly of the pair; b. writing servo-tracks on the second surface of each disk using a different write element for each disk. 2. The method of claim 1, further comprising writing servo-tracks on the second surface of each disk simultaneously. 3. The method of claim 1, further comprising separating said disks following writing servo-tracks on said disks. 4. The method of claim 1, further comprising positioning said write elements on separate actuator assemblies. 5. The method of claim 4, further comprising pivoting said actuator assemblies about separate axes. 6. A method of writing servo-tracks on hard memory disks, the disks being of substantially uniform size and shape including having a central aperture, and having memory capacity associated with a first side of the disk but no memory capability associated with the second surface, the method comprising: a. merging a pair of disks such that the first surfaces of each disk are in contact and the second surface of each disk is accessible by a write element; b. simultaneously writing servo-tracks on the second surface of each disk such that the servo-tracks on the second surface of each disk have the same pattern. 7. The method of claim 6, further comprising using a first write element for the first disk and a second write element for the second disk. 8. The method of claim 6, further comprising demerging the pair of disks following servo writing. 9. The method of claim 6, wherein merging a pair of disks comprises aligning the disks such that the outer perimeters of the disks are aligned. 10. The method of claim 6, wherein said step of merging a pair of disks comprises inserting a spindle through the central aperture of each disk. 11. A method of manufacturing hard disks by writing servo-tracks on a single surface of each of two hard memory disks simultaneously, the method comprising: a. positioning the pair of disks in a contact merge orientation, with a surface of each disk being accessible by a servo-writing instrument; b. simultaneously rotating the pair of disks in unison; c. positioning a first write element on a first movable actuator arm at a first location; d. positioning a second write element on a second moveable actuator arm at a second location; e. writing at least one servo-track on said surface of one disk using the first write element; f. simultaneously writing at least one servo-track on said surface of the second disk using the second write element. 12. The method of claim 11, further comprising selecting the first and second locations such that the pattern of servo-tracks written on each disk is the same. 13. The method of claim 11, further comprising separating the disks upon completion of the servo-track writing. 14. A method of manufacturing single-sided hard disks by writing servo-tracks on the active surface of the single-sided hard memory disks, the method comprising: a. positioning a pair of disks in a concentric contact merge orientation; b. positioning a first write element adjacent the active surface of one disk; c. positioning a second write element adjacent the active surface of the other disk; d. rotating the disk pair in unison; e. simultaneously writing substantially similar servo-track patterns on the active side of each disk; f. demerging the pair of disks. 15. A method of manufacturing single-sided hard disks by creating servo-tracks on the active surface of the single-sided hard memory disks, the method comprising: a. positioning a pair of disks in concentric contact merge orientation, with the active surface of each disk facing outwardly of the pair; b. simultaneously writing substantially identical patterns of servo-tracks on the active surface of each disk; c. demerging the pair of disks. 16. The method of claim 15, wherein simultaneously identical patterns of servo-tracks on the active surface of each disk comprises positioning a separate write element proximate the active surface of each disk. 17. The method of claim 16, further comprising positioning the separate write elements using separate actuator assemblies. 18. A method of manufacturing single-sided hard disks having a single active surface, the method comprising: a. positioning a pair of single-sided disks in back to back orientation with the active surface of each disk facing outwardly; b. simultaneously applying a first template having a magnetized pattern to the active surface of one disk and applying a second template having the same magnetized pattern to the active surface of the second disk; c. creating a servo-track pattern on the active surface of each disk substantially similar to the pattern of the template; d. removing the templates from the disks. 19. The method of claim 18, further comprising adding additional servo-tracks using the write element of a disk drive or servo-track writer. 20. A method of manufacturing hard memeory disks by creating servo-tracks in the active surface of the hard memory disks, the method comprising: a. placing a pair of disks in a contact merge orientation such that the outwardly facing surface of each disk is active; b. applying a template to the outwardly facing surface of each disk where the template has portions that permit light to pass through and other sections where light cannot pass through; c. directing a laser beam at the template; d. altering the coercivity of the magnetic layer of the outwardly facing surface of each disk; e. creating a servo-pattern on the active surface of each disk based upon the altered coercivity. 21. The method of claim 20, wherein altering the coercivity of the magnetic layer comprises reducing the coercivity.