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Flexible printing circuit board

A technology of flexible printed circuit and conductive layer, which is applied in the direction of printed circuit, printed circuit, printed circuit parts, etc., can solve the problems of long time and high production cost of flexible printed circuit board, and achieve the improvement of bending performance and saving production Cost, effect of preventing breakage

Inactive Publication Date: 2008-07-16
AVARY HLDG (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvement and replacement of materials usually takes a long time, and also leads to high production costs of flexible printed circuit boards

Method used

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Examples

Experimental program
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Embodiment Construction

[0019] The flexible printed circuit board provided by the embodiment of the technical solution will be further described below in conjunction with the accompanying drawings.

[0020] see figure 2 and image 3 Embodiment 1 provides a flexible printed circuit board 20, the flexible printed circuit board 20 is a single-layer printed circuit board composed of a base material layer 22 and a copper conductive layer 24. The flexible printed circuit board 20 has a bending portion 26 that can be bent along a bending line 261 . The bent portion 26 has a first edge 262 and a second edge 263 . The bent portion 26 includes a signal line wiring area 27 and a ground line wiring area 28 . The signal line wiring area 27 and the ground line wiring area 28 are located on the same copper conductive layer 24 , and the ground line wiring area 28 surrounds the signal line wiring area 27 . In this embodiment, the bending portion 26 of the flexible printed circuit board 20 includes two ground wir...

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PUM

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Abstract

The invention relates to a soft printing circuit board which comprises a bending part. The bending part is provided with a wiring area of earth wires in which a plurality of copper areas are evenly distributed in a pattern design. Bending the soft printing circuit board can facilitate the dispersion of stress, effectively reduce the stress produced when the soft circuit board is bent and avoid breaking earth wires and signals wires so as to improve the bending performance of the soft printing circuit board.

Description

technical field [0001] The invention relates to a circuit board, in particular to a flexible printed circuit board with good bending performance. Background technique [0002] Flexible Printed Circuit Board (FPCB) is widely used in electronic products such as mobile phones due to its light, thin, short, small and bendable characteristics, and is used for electrical connection between different circuits. Electronic products such as mobile phones, especially folding mobile phones and slider mobile phones, have very high requirements on the bending performance of flexible printed circuit boards. [0003] The design of the bending area of ​​traditional flexible printed circuit boards usually adopts a large copper surface design, such as figure 1 shown. The flexible printed circuit board bending area 10 includes a signal line area 12 and a ground line area 14. The signal line area 12 is provided with a plurality of signal lines 121. The ground line area 14 is provided with a gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02H05K1/11H05K1/16
CPCH05K1/0224H05K1/028H05K2201/09681H05K1/0253
Inventor 汪明江怡贤
Owner AVARY HLDG (SHENZHEN) CO LTD
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