Fabrication method of covering film and protective electromagnetic wave shielding film rigid-flex printed circuit board
A kind of rigid-flexible board and technology of making method
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[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the product of the present invention will be further described in detail below in conjunction with examples.
[0034] The invention discloses a method for manufacturing a rigid-flex board with a covering film protecting an electromagnetic wave shielding film, which comprises the following steps:
[0035] A. Lamination structure design. The cover film is quickly pressed on the rigid board of the laminate structure. The cover film is arranged on the front and back of the high-frequency circuit board, and the outermost cover film is covered with FR4 glass fiber board.
[0036] B. For the production of flexible board circuit graphics, the inner layer core board cutting, circuit production, AOI inspection, browning, quick pressing of cover film, plasma treatment are carried out according to the conventional process, and the electromagnetic wave shielding film is w...
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