Magnetic head suspension assembly
AssigneeNippon Mektron, Ltd.
InventorsMasaichi Inaba, Hirofumi Matsumoto, Yasuyuki Tanaka
Life of this patent
Estimating the term…
Abstract
A magnetic head suspension assembly, wherein a wiring member for connecting a magnetic head element with a read/write amplifier circuit board is integrally formed with the suspension for supporting the magnetic head element. The suspension is equipped integrally with a circuit wiring pattern via a flexible insulating base material. The flexible insulating base material is made as wide as the circuit wiring pattern. The top surface of the circuit wiring pattern has a surface protecting layer which is wider than the circuit wiring pattern.
Claims20
A magnetic head suspension assembly comprising:
- a resilient suspension member, said suspension member being comprised of metal;
- a layer of flexible insulating base material supported on said suspension member, said base material being comprised of a polyimide;
- a circuit wiring pattern carried by said layer of flexible insulating base material;
- and
- a surface protecting layer at least partially located on the surface of said circuit wiring pattern, said suspension member being provided with an opening, said flexible insulating base material covering at least a portion of said opening to provide a flexible support for said circuit wiring pattern across said opening.
A magnetic head suspension assembly comprising:
- a resilient suspension member;
- a layer of flexible insulating base material formed on said suspension member by a photofabrication process, said base material having a width and being comprised of a polyimide;
- a circuit wiring pattern formed on said base material by a photofabrication process, said circuit wiring pattern having a width which is substantially equal to said base material width;
- and
- a surface protecting layer formed on at least a portion of said circuit wiring pattern by a photofabrication process.
A magnetic head suspension assembly comprising:
- a resilient suspension member, said suspension member including at least first and second coplanar portions arranged such that said first portion is entirely contained within and spatially isolated from said second portion to thereby define an endless opening therebetween;
- a layer of flexible insulating base material at least in part supported on said suspension member, said base material bridging said first and second portions of said suspension to thereby provide a flexible support for a circuit wiring pattern;
- a circuit wiring pattern at least in part formed on said base material and carried by said base material across said opening;
- and
- a surface protecting layer formed on at least a portion of said circuit wiring pattern.
Dependencies are inferred from the claim text.