A manufacturing process of an asymmetric rigid-flex board

A rigid-flex board, asymmetrical technology, applied in multi-layer circuit manufacturing, printed circuit manufacturing, printed circuit, etc., can solve the problems of low efficiency, unfavorable long-term production, and large cost waste of traditional processes, so as to reduce production Processing flow, saving processing cost and time cost, ensuring the effect of dry film coverage

Active Publication Date: 2021-10-08
珠海杰赛科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The production of such asymmetric rigid-flex boards according to the traditional production process requires at least two times of lamination and outer circuit production. The process is long and complicated, the process cost is high, and the scrap rate is high. Rigid-flex board, the cost of the process is wasteful, the traditional process is not efficient, and it is not conducive to long-term production

Method used

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  • A manufacturing process of an asymmetric rigid-flex board
  • A manufacturing process of an asymmetric rigid-flex board
  • A manufacturing process of an asymmetric rigid-flex board

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Embodiment Construction

[0034] see figure 1 , the asymmetric rigid-flex board is composed of rigid board 1, flexible board 2 and prepreg 3 according to rigid board 1, prepreg 3, rigid board 1, prepreg 3... rigid board 1, prepreg 3, flexible board 2, The prepreg 3, the rigid board 1...the prepreg 3, the rigid board 1, the prepreg 3, and the rigid board 1 are laminated in sequence. In the process of making rigid-flex boards, the purpose of opening the large cover 5 is to remove part of the rigid board 1 and the prepreg 3 on the upper and lower sides of the rigid-flex board to leak out the sub-board 7 and the small cover 4, and the purpose of opening the small cover 4 is to remove the main board 6 and the rigid board 1 and the prepreg 3 between the sub-board 7 to leak out the flexible board area 8 between the main board 6 and the sub-board 7 .

[0035] A manufacturing process of an asymmetric rigid-flex board of the present invention comprises the following steps:

[0036] S01. Perform preprocessing o...

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Abstract

The invention relates to the technical field of printed circuit board manufacturing, and discloses a manufacturing process of an asymmetric rigid-flex board, comprising the following steps: pre-processing the rigid board and the flexible board; opening a window on two prepregs to form a first window ;Mill the rigid board and the prepreg to form a long through hole; open the window on the prepreg to form a second window; take the thickness of the main board as the standard, press the rigid board, the prepreg and the flexible board; drill out the main board and the sub-board All holes in the position; manual opening of the large cover; holeization; dry film coating on the semi-finished product; optical imaging of the main board and sub-board; production of the outer layer of the main board and sub-board; solder mask; character printing; surface treatment; controlled depth opening Small cover, which leaks out of the flexible board area; shape processing; conventional post-processing. Optimizing at least two presses in the traditional process into one press, greatly reduces the processing flow, makes the operation simpler, can effectively reduce process scrap in the process, and save processing costs and time costs.

Description

technical field [0001] The invention relates to the technical field of printed circuit board manufacturing, in particular to a manufacturing process of an asymmetric rigid-flex board. Background technique [0002] In recent years, my country's printed circuit board (Printed Circuit Board, referred to as PCB) manufacturing industry has developed rapidly, and flexible printed circuit boards have grown rapidly, and have begun to develop in the direction of rigid-flexible printed boards. Rigid-flexible printed boards are One of the main growth points of the PCB industry in the future. [0003] With the development of rigid-flex boards, the design of asymmetric rigid-flex boards is becoming more and more common. Asymmetric rigid-flex boards, also known as primary and secondary rigid-flex boards, refer to the existence of two thicknesses in the rigid area of ​​a rigid-flex board, which are the main board and the sub-board, that is, the thickness of the rigid area is asymmetrical. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/36H05K3/46
CPCH05K3/36H05K3/4611
Inventor 郑伟生黄德业关志锋齐国栋
Owner 珠海杰赛科技有限公司
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