Integrated suspension, actuator arm and coil assembly with common structural support layer

Patent 5539596 Issued on July 23, 1996. Estimated Expiration Date:

December 29, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3908194

Linear actuator with staggered flat coils
Patent #: 4314295
Issued on: 02/02/1982
Inventor: Frandsen

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Inventors

Application

No. 366282 filed on 12/29/1994

US Classes:

360/244.4, Nonmetallic beam360/126, Laminated360/244.3, Laminated beam360/245.8Electrical connection detail

Examiners

Primary: Heinz, A. J.

Attorney, Agent or Firm

Baker, Maxham, Jester & Meador

Foreign Patent References

0203204A1 EP 12/13/1986

International Class

G11B 005/55

Abstract

An assembly is provided which has integrated suspension and actuator arm regions. At least one actuator coil layer is located in the actuator arm region. The actuator coil layer is mounted to at least one homogeneous support layer which extends between terminal ends of the assembly for supporting all layers. A hole is provided through all layers in the actuator region at a pivot point for receiving an actuator spindle. In some embodiments of the invention, a transducer coil layer may be integrated in the suspension region and may be located in substantially a common plane with the actuator coil layer. The actuator region may be provided with a silicon base which contains integrated processing circuits which are connected to the transducer coil layer. A device may be carried by the assembly for bending the suspension region with respect to the actuator arm region. A method is provided for fabricating multiple integrated assemblies substantially entirely at the wafer level, each integrated assembly having a longitudinal recording magnetic head which has a close tolerance gap.