Head suspension assembly mounting nonvolatile memory and magnetic disk device
AssigneeHitachi, Ltd.
InventorAkira Osaki
Life of this patent
Estimating the term…
Abstract
A head suspension assembly having a magnetic head, an arm which is supported so as to rotate, a suspension having one end which is fixed to an end of the arm and an other end which mounts the magnetic head, a nonvolatile memory which is mounted on the suspension assembly, and stores control parameters of the magnetic head, a connecting terminal which is mounted to the arm, and a signal transmission line which electrically connects the connecting terminal to the nonvolatile memory and the magnetic head. The connecting terminal enables transmission of signals at least one of to and from the head suspension assembly, the nonvolatile memory and the magnetic head.
Claims7
A head suspension assembly comprising:
- a magnetic head;
- an arm which is supported so as to rotate;
- a suspension having one end which is fixed to an end of said arm and an other end which mounts said magnetic head;
- a nonvolatile memory which is mounted on said suspension assembly, and stores control parameters of said magnetic head;
- a connecting terminal which is mounted to said arm;
- and
- a signal transmission line which electrically connects said connecting terminal to said nonvolatile memory and said magnetic head;
- wherein said connecting terminal includes transmission of at least one of to and from signals said head suspension assembly, said nonvolatile memory and said magnetic head.
A magnetic disk device comprising:
- a magnetic disk which records data;
- a read/write circuit which has a decoding function for a data reproducing operation;
- head suspension assembly including:
- a magnetic head, an arm which is supported so as to rotate, a suspension having one end which is fixed to an end of said arm and an other end which mounts said magnetic head;
- a nonvolatile memory which is mounted on said suspension assembly, and stores control parameters of said magnetic head;
- a connecting terminal which is mounted to said arm;
- and
- a signal transmission line which electrically connects said connecting terminal to said nonvolatile memory and said magnetic head;
- a spindle motor which rotates said magnetic disk and said arm;
- a voice coil motor which rotates said arm;
- a controller which controls a read/write operation by said magnetic head using said control parameters stored in said nonvolatile memory;
- and
- a main flexible printed circuit which electrically connects said controller to said connecting terminal.
Dependencies are inferred from the claim text.