Method for test mounting a head stack assembly cartridge
View Patent ↗According to one embodiment, a head stack assembly cartridge is provided. The head stack assembly cartridge includes a base plate having a pivot shaft for pivotally mounting a head stack assembly and a base voice coil motor magnet attached to an inner surface of the base plate. The base voice coil motor magnet is arranged on the inner surface of the base plate to be adjacent to a coil of the head stack assembly pivotally mounted on the pivot shaft. The head stack assembly cartridge further includes a cover removably attached to the base plate and a pivot clamp removably attached to the cover and configured to secure the head stack assembly pivotally mounted on the pivot shaft.
1. A method for test mounting a head stack assembly, the method comprising:
pivotally mounting the head stack assembly on a pivot shaft of a base plate;
attaching a cover plate to the base plate, wherein the cover plate and the base plate partially enclose the head stack assembly and form a head stack assembly cartridge, wherein the head stack assembly cartridge is configured to removably mount onto a tester chassis;
securing the pivotally mounted head stack assembly with a pivot clamp attached to the cover plate; and
temporarily coupling the head stack assembly cartridge to a disk spindle assembly cartridge configured to removably mount onto the tester chassis, the disk spindle assembly comprising a magnetic disk, wherein the magnetic disk is accessible to the head stack assembly via an opening formed on the disk spindle assembly cartridge.
2. The method according to claim 1 , wherein pivotally mounting the head stack assembly comprises attaching the head stack assembly to the pivot shaft with a pivot screw.
3. The method according to claim 2 , wherein securing the pivotally mounted head stack assembly comprises applying a load to the pivot screw with the pivot clamp.
4. The method according to claim 3 , wherein applying the load to the pivot screw comprises tightening a load screw that attaches the pivot clamp to the cover plate.
5. The method according to claim 1 , further comprising electrically connecting a flex cable assembly of the head stack assembly to a printed circuit board assembly mounted to the tester chassis.
6. The method according to claim 1 , further comprising temporarily mounting the temporarily coupled head stack assembly cartridge and disk spindle assembly cartridge to the tester chassis during a testing process performed on at least one of the head stack assembly and the magnetic disk.
7. The method according to claim 6 , further comprising, subsequent to performing the testing process:
uncoupiing the head stack assembly cartridge from the disk spindle assembly cartridge; and
unmounting at least one of the head stack assembly cartridge and the disk spindle assembly cartridge from the tester chassis.
8. The method according to claim 7 , further comprising mounting a replacement for the at least of one of the head stack assembly cartridge and the disk spindle assembly cartridge unmounted from the tester chassis.
9. The method according to claim 1 , wherein the tester chassis includes a first mounting mechanism to mount the head stack assembly cartridge and a second mounting mechanism to mount the disk spindle assembly cartridge.
10. The method according to claim 9 , wherein the first mounting mechanism and second mounting mechanism function independently.
11. A method for test mounting a head stack assembly, the method comprising:
pivotally mounting the head stack assembly on a pivot shaft of a base plate;
attaching a cover plate to the base plate, wherein the cover plate and the base plate partially enclose the head stack assembly;
securing the pivotally mounted head stack assembly with a pivot clamp attached to the cover plate; and
coupling the base plate to a disk spindle assembly cartridge comprising a magnetic disk, where the magnetic disk is accessible to the head stack assembly, wherein coupling the base plate to the disk spindle assembly cartridge comprises:
mounting a pivot arm of the base plate on a pivot pin on the disk spindle assembly cartridge; and
securing an alignment mount of the base plate to an alignment mount on the disk spindle assembly cartridge.
12. The method according to claim 11 , further comprising attaching the base plate to a tester chassis.
13. The method according to claim 12 , further comprising electrically connecting a flex cable assembly of the head stack assembly to a printed circuit board assembly mounted to the tester chassis.
14. The method according to claim 11 , wherein pivotally mounting the head stack assembly comprises attaching the head stack assembly to the pivot shaft with a pivot screw.
15. The method according to claim 14 , wherein securing the pivotally mounted head stack assembly comprises applying a load to the pivot screw with the pivot clamp.
16. The method according to claim 15 , wherein applying the load to the pivot screw comprises tightening a load screw that attaches the pivot clamp to the cover plate.