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Fixed disk drive including flexible printed circuit board with damping material

A flexible printed circuit, hard disk drive technology, applied in the direction of printed circuit, printed circuit, printed circuit manufacturing, etc., can solve the problems of traditional hard drive performance and productivity impact

Inactive Publication Date: 2003-05-14
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the performance and productivity of traditional hard drives suffer

Method used

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  • Fixed disk drive including flexible printed circuit board with damping material
  • Fixed disk drive including flexible printed circuit board with damping material
  • Fixed disk drive including flexible printed circuit board with damping material

Examples

Experimental program
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Embodiment Construction

[0035] A flexible printed circuit (FPC) according to the present embodiment will be fully described below with reference to the drawings. The same reference numerals in different drawings denote the same elements, and therefore, descriptions thereof are omitted.

[0036] Figure 4 A hard disk drive according to an embodiment of the invention is shown. see Figure 4 , the hard disk drive according to the embodiment of the present invention includes: an actuator 63 with a magnetic head 65 for writing / reproducing information on / from the disk 53; a voice coil motor 61 for driving the actuator 63; an FPC 41 with The base layer 45 and the cover layer 43, the circuit layer 47 that transmits the electric signal to the actuator 63 and the voice coil motor 61 are located therebetween, and the FPC also has a vibration damper that is bonded to a predetermined portion of the signal wiring on the circuit layer 47 across the signal wiring. material 40 ; and, a bracket 67 supporting the FP...

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PUM

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Abstract

The present invention provides a hard disk drive. The provided hard disk drive includes a flexible printed circuit (FPC) in which a base layer and a cover layer are arranged with a circuit layer therebetween. In addition, a damping material is coupled at a predetermined portion of the signal patterns in the circuit layer so as to cross the signal patterns. The provided hard disk drive reduces vibration energy over an entire frequency band for minimizing the effect of vibration on servo control. As a result, the performance of the hard disk drive is improved.

Description

technical field [0001] The present invention relates to a flexible printed circuit (FPC), and more particularly to an FPC that minimizes the vibration energy of noise. Background technique [0002] A hard disk drive is a computer-assisted storage device that uses magnetic heads that work like electromagnets to write information to and read information from the hard disk. [0003] figure 1 The structure of a conventional hard disk drive 20 is shown. refer to figure 1 , the traditional hard disk drive comprises: the disk 13 of storing information, the spindle motor 15 that makes disk 13 rotate, the actuator 23 that has a magnetic head 25 that reads and writes information on disk 13, the voice coil motor 21 that drives actuator 23, A flexible printed circuit (FPC) 11 that transmits electrical signals from a printed circuit board (PCB) (not shown) to the actuator 23 , and a bracket 31 that supports the FPC 11 . [0004] The disc 13 consists of a park...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B21/02G11B5/48G11B33/08H05K1/00H05K1/02H05K3/28
CPCG11B5/486H05K2201/2009H05K3/281H05K2201/2045G11B33/08H05K1/0281H05K2201/09909G11B21/02
Inventor 申相澈
Owner SAMSUNG ELECTRONICS CO LTD
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