Unlock instant, AI-driven research and patent intelligence for your innovation.

System and method for improving piezoelectric micro-actuator operation by preventing undesired micro-actuator motion hindrance and by preventing micro-actuator misalignment and damage during manufactu

A transmission, motion technology, applied in the field of improving the operation of piezoelectric micro-actuators

Inactive Publication Date: 2007-03-14
SAE MAGNETICS (HK) LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, existing methods of mounting the FSA 204 to the arm 212 also lead to problems with ensuring suspension rigidity and correcting the spatial orientation of the recording head, among other problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for improving piezoelectric micro-actuator operation by preventing undesired micro-actuator motion hindrance and by preventing micro-actuator misalignment and damage during manufactu
  • System and method for improving piezoelectric micro-actuator operation by preventing undesired micro-actuator motion hindrance and by preventing micro-actuator misalignment and damage during manufactu
  • System and method for improving piezoelectric micro-actuator operation by preventing undesired micro-actuator motion hindrance and by preventing micro-actuator misalignment and damage during manufactu

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Figure 3 illustrates the drive arm with FSA in accordance with the principles of the present invention. In one embodiment, the FSA has an (O-shaped) opening that enables the FSA to mount to the microactuator 304 without interference. In one embodiment, the microactuator 304 includes an actuator frame 306 that supports a head 308 and a piezoelectric member 310 on both sides for adjustment of the position of the head 308 . In order to be able to resist vibrations, a suspension tongue 312 is used, which is mounted on the drive frame 306 by means of an adhesive such as epoxy. In another embodiment, the suspension tongue 312 is mounted to the transmission frame 306 by welding, such as laser welding. Suspension tongue 312 is constrained by a "hammer" or "T" (second hook) 314 at one end and is supported at the other end by a recess 316 .

[0024] In one embodiment, a gap 317 between the drive frame 306 and the suspension tongue 312 on the recess 316 of 25 to 50 micrometers (...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A system and method for improving piezoelectric micro-actuator operation by preventing undesired micro-actuator motion hindrance and by preventing micro-actuator misalignment during manufacture.

Description

technical field [0001] The present invention relates to magnetic hard disk drives. More specifically, the present invention relates to systems and methods for improving piezoelectric microactuator operation by preventing unintended microactuator movement disturbances and by preventing microactuator misalignment. Background technique [0002] Currently in the art, different methods are used to increase the recording density of hard disk drives. Figure 1 provides an illustration of a typical drive arm configured to read and write to a magnetic hard drive. Generally speaking, a voice coil motor (VCM) 102 is used to control the movement of a hard drive arm 104 across a magnetic hard drive 106 . Due to the inherent tolerances (dynamic play) in setting the recording head 108 solely by means of the VCM 102, microactuators 110 are currently used to "fine tune" the position of the recording head 108, as described in US Patent No. 6,198,606. The VCM 102 is used for stroke adjustmen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G11B5/48G11B5/55
CPCG11B5/5552G11B5/486
Inventor 姚明高解贻如
Owner SAE MAGNETICS (HK) LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com