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Flexible circuit board

A circuit board, bending technology, applied in the direction of circuit substrate materials, printed circuit components, etc., can solve the problems of high price, easy damage, improper operation, etc., and achieve the effect of small size and low price

Active Publication Date: 2013-02-27
高德(苏州)电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, commonly used circuit boards are divided into rigid boards, flexible boards, and soft-rigid boards. Among them, soft boards and soft-hard boards are mainly used in the connection parts of electronic products, such as mobile phone cables, liquid crystal modules, etc. Compared with hard boards, hard boards have the advantages of small size, light weight, bendable flexure, three-dimensional three-dimensional assembly, etc. However, soft boards and soft-hard boards also have high initial cost at one time, and it is difficult to change and repair. The size is limited by the production equipment, improper operation is easy to damage and other shortcomings
However, in many applications, flexible boards and rigid-flex boards only need to be bent a few times for assembly, rework, repair, etc., and do not need to be bent and flexed frequently, so it is not necessary to use expensive flexible boards in these applications. board or rigid-flex board

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Flexible circuit board

[0025] See attached figure 1 , attached figure 2 And attached image 3 As shown, the circuit board 1 is mainly composed of a core board and a number of prepregs laminated. The core board is a second prepreg 4 with a model number of 7628. The resin content of the second prepreg 4 is 45%, and the two sides of the second prepreg 4 are outward. A copper sheet 6, a second prepreg 4, a third prepreg 5 of model 1078, a copper sheet 6 and ink 7 are arranged in sequence.

[0026] One side surface of the circuit board 1 is provided with a groove 3 for bending in the bending area 2, the length direction of the groove 3 is perpendicular to the bending direction of the circuit board 1, and the groove 3 runs through the circuit in the width direction Board 1, a third prepreg 5 and ink 7 are reserved between the groove bottom of the groove 3 and the other side surface of the circuit board 1, the resin content of the third prepreg 5 is 68%; the o...

Embodiment 2

[0027] Example 2: Flexible circuit board

[0028] See attached figure 1 , attached figure 2 And attached Figure 4 As shown, the center of the circuit board 1 is a second prepreg 4 with a type of 7628 resin content of 47%, and the two sides of the second prepreg 4 are successively composed of a first prepreg 9 with a type of 7628 and a copper sheet with a resin content of 52% from the inside to the outside. 6. The third prepreg 5, the copper sheet 6 and the ink 7 of the type 1078 with a resin content of 68% are laminated.

[0029] One side surface of the circuit board 1 is provided with a groove 3 for bending in the bending area 2, the length direction of the groove 3 is perpendicular to the bending direction of the circuit board 1, and the groove 3 runs through the circuit in the width direction Board 1, a first prepreg 9, copper sheet 6, third prepreg 5, copper sheet 6 and ink 7 are reserved between the groove bottom of the groove 3 and the other side surface of the circ...

Embodiment 3

[0030] Example 3: Flexible circuit board

[0031] See attached figure 1 , attached figure 2 And attached Figure 4 As shown, the center of the circuit board 1 is a second prepreg 4 with a model number of 7628 and a resin content of 49%. The two sides of the second prepreg 4 are sequentially composed of copper sheets 6 and a first prepreg with a model number of 7628 and a resin content of 54% from the inside to the outside. 9. The second prepreg 4 of model 7628 with a resin content of 49%, the first prepreg 9 copper sheet 6, the third prepreg 5 of model 1078 with a resin content of 68%, copper sheet 6 and ink 7 are laminated.

[0032] One side surface of the circuit board 1 is provided with a groove 3 for bending in the bending area 2, the length direction of the groove 3 is perpendicular to the bending direction of the circuit board 1, and the groove 3 runs through the circuit in the width direction Board 1, a first prepreg 9, copper sheet 6, third prepreg 5, copper sheet ...

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PUM

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Abstract

A flexible circuit board is mainly stacked by a core board and a plurality of prepregs, and is characterized in that a groove for bending is opened in a bending area on the surface of at least one side of the circuit board, the length direction of the groove is perpendicular to the bending direction of the circuit board, and the groove penetrates through the circuit board in the width direction, at least a third prepreg with the resin content 61%<=c<=72% is reserved between the groove bottom and the surface of the other side, and flexible ink is arranged corresponding to the bending area of the circuit board on the surface of the other side. The flexible circuit board has the advantages that not only a hard board is low in cost, but also a soft board and a rigid-flexible board are small in size, flexible and can be assembled solidly.

Description

technical field [0001] The invention relates to a circuit board, in particular to a bendable circuit board. Background technique [0002] The circuit board makes the circuit miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances. At present, commonly used circuit boards are divided into rigid boards, flexible boards, and soft-rigid boards. Among them, soft boards and soft-hard boards are mainly used in the connection parts of electronic products, such as mobile phone cables, liquid crystal modules, etc. Compared with hard boards, hard boards have the advantages of small size, light weight, bendable flexure, three-dimensional three-dimensional assembly, etc. However, soft boards and soft-hard boards also have high initial cost at one time, and it is difficult to change and repair. The size is limited by the production equipment, improper operation is easy to damage and other shortcom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02H05K1/03
Inventor 郑嵘
Owner 高德(苏州)电子有限公司
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