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A manufacturing method and product of a flexible circuit board with suspended plug fingers

A technology for flexible circuit boards and manufacturing methods, applied in chemical/electrolytic methods to remove conductive materials, printed circuits, printed circuit components, etc., can solve problems that affect product yield, poor reliability, and easy pinning of PIN pins, etc. , to achieve the effect of improving the strength and reliability of conductivity, satisfying the bending performance, and simple manufacturing process

Active Publication Date: 2021-04-30
XIAMEN BOLION CIRCUIT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Made of thick copper: thick copper is an unconventional material, and the procurement and delivery time is unstable; the thicker the copper layer of the substrate, the higher the difficulty of etching, and the more obvious the trapezoidal shape of the line, which affects the quality of the flexible circuit board; it can only be made Single-layer circuit is not conducive to the product design of double-layer board
[0004] 2. Made of thin copper: Since the thickness and hardness of the plug-in fingers are not up to the plug-in conditions, it is necessary to press the PIN pin as the plug-in finger, and the PIN pin is easy to be skewed, which affects the product yield; All in one, poor reliability

Method used

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  • A manufacturing method and product of a flexible circuit board with suspended plug fingers
  • A manufacturing method and product of a flexible circuit board with suspended plug fingers
  • A manufacturing method and product of a flexible circuit board with suspended plug fingers

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Embodiment Construction

[0044] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

[0045] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0046] The invention provides a method for manufacturing a flexible circuit board with suspended fingers and a flexible circuit board produced by the method. The method includes the following steps:

[0047] a. Prepare...

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Abstract

The invention relates to a manufacturing method and product of a flexible circuit board with suspended plugging fingers. The manufacturing method thickens the conductive layer of each plugging finger so that the area of ​​the plugging finger is partially thickened and hardened. To meet the bending performance of the flexible circuit board and the hard plug-in condition of the plug, and the circuit part is etched, and the part of the suspended plug-in finger is punched and formed. The manufacturing process is simple and can meet the needs of the flexible circuit board. The soft bending performance of local wiring can also meet the local hard plug insertion conditions, which is suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of flexible circuit board manufacturing, in particular to a method for manufacturing a flexible circuit board with suspended fingers. Background technique [0002] FPC (Flexible Printed Circuit, flexible circuit board), also known as soft board, is a highly reliable and flexible printed circuit board made of polyimide or polyester film as the base material. , an indispensable and important connector for automobiles and consumer electronics. Among them, flexible circuit boards with suspended plug fingers are generally produced in the following two ways: [0003] 1. Made of thick copper: thick copper is an unconventional material, and the procurement and delivery time is unstable; the thicker the copper layer of the substrate, the higher the etching difficulty coefficient, and the more obvious the trapezoidal shape of the line, which affects the quality of the flexible circuit board; it can only be made Sing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K1/11H05K3/06
CPCH05K1/118H05K3/06
Inventor 王文宝
Owner XIAMEN BOLION CIRCUIT
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