Rigid-flexible combination board and manufacturing method thereof

Abstract

The invention discloses a rigid-flexible combination board and a manufacturing method thereof. The manufacturing method comprises the steps of A, pre-forming a blind groove in a first region of a rigid board of the rigid-flexible combination board, and pre-forming a windowing area in a second region of the rigid board of the rigid-flexible combination board at the same time, wherein the first region of the rigid board corresponds to a region, which contains a finger or a bonding pad, of a flexible board in the rigid-flexible combination board, and the second region of the rigid board corresponds to a region, which does not contain a finger and a bonding pad, of the flexible board in the rigid-flexible combination board; B, performing lamination processing on the rigid board and the flexible board of the rigid-flexible combination board; and C, performing routing at the position of the pre-formed blind groove of the rigid board, and exposing the finger or the bonding pad after uncovering. According to the invention, two manufacturing methods such as an uncovering method and a windowing method are simultaneously applied to products containing a finger or a bonding pad and products without a finger or a bonding pad. The manufacturing method can solve problems that an uncovering region is too small and that uncovering is difficult to be performed. Meanwhile, the manufacturing method can solve a problem that a single method is low in manufacturing efficiency.

Description

technical field [0001] The invention relates to the technical field of manufacturing printed circuit boards, in particular to a rigid-flex board and a manufacturing method thereof. Background technique [0002] At present, rigid-flex boards are mostly made by two methods: the uncovering method and the windowing method. In terms of product design subdivision, it can be divided into two categories. Category I is: products with no fingers or pads in the flexed area of ​​the finished product (that is, no copper exposed on the exposed flexed area); Type II: products with fingers in the flexed area of ​​the finished product. or pads (that is, exposed flex areas with exposed copper) products. The window-opening method can only be used in the production of Class I products, and the uncovering method can be used in the production of Class I and Class II products. The advantages and disadvantages of these two production methods are as follows: the window-opening method saves the pro...

AI Technical Summary

Problems solved by technology

[0005] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a rigid-flexible board and its manufacturing method, aiming to solve the problems of low production efficiency, small uncovering area and difficulty in uncovering the existing rigid-flexible board using a single method. question

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