Microfile
AssigneeInternational Business Machines Corporation
InventorsTimothy Joseph Chainer, Lubomyr Taras Romankiw
Life of this patent
Estimating the term…
Abstract
An integrated microfile includes a rotatably supported magnetic disk for storing data and a micromotor for rotating the disk. The micromotor includes a rotor fixedly joined to the disk and having a plurality of rotor poles. A stator includes a plurality of stator poles positioned around the rotor for sequentially cooperating with respective ones of the rotor poles for rotating the rotor to rotate the disk. A selectively movable access head is disposed adjacent to the disk for selectively addressing the data on the disk. The microfile may be fabricated using lithographic and electroplating techniques in subform-factor sizes in an exemplary embodiment.
Claims23
A microfile comprising:
- a rotatably supported storage disk for storing data;
- a micromotor for rotating said disk and including a rotor integrated with said disk in a one-piece assembly, and also including a stator, said rotor having a plurality of magnetic rotor poles extending radially outwardly from a perimeter thereof and being circumferentially spaced apart therearound, and said stator having a plurality of magnetic stator poles circumferentially spaced apart from each other around said rotor for sequentially cooperating with respective ones of said rotor poles for rotating said rotor to rotate said disk;
- a selectively movable access head for selectively addressing said data on said disk
- each of said stator poles comprising a magnetic core integrally wound with an electrically conducting coil for generating a magnetic flux through said core upon energizing thereof;
- and
- said stator pole cores and coils being integrated on a substrate and comprising deposited magnetic material and deposited conducting material, respectively, and a dielectric therebetween.
a microcard comprising:
- a pair of laterally adjoining, coplanar microfiles, each including:
- a rotatably supported storage disk for storing data;
- a micromotor for rotating said disk and including a rotor integrated with said disk in a one-piece assembly, and also including a stator, said rotor having a plurality of magnetic rotor poles extending radially outwardly from a perimeter thereof and being circumferentially spaced apart therearound, and said stator having a plurality of magnetic stator poles circumferentially spaced apart from each other around said rotor for sequentially cooperating with respective ones of said rotor poles for rotating said rotor to rotate said disk;
- a selectively movable access head for selectively addressing said data on said disk;
- each of said stator poles comprising a magnetic core integrally wound with an electrically conducting coil for generating a magnetic flux through said core upon energizing thereof;
- and
- said stator pole cores and coils being integrated on a substrate and comprising deposited magnetic material and deposited conducting material, respectively, and a dielectric therebetween;
- and
- a common actuator disposed between adjacent ones of said microfiles for simultaneously supporting and selectively moving said access heads thereof for addressing said data on said disks.
Dependencies are inferred from the claim text.