Full-process tracing method for FPC with black cover film

Abstract

The invention discloses a full-process tracing method for an FPC with a black cover film, comprising the following steps: S1, a two-dimensional code window is formed by windowing in an area, corresponding to a two-dimensional code of an FPC board, of a black cover film; S2, the black cover film is pre-attached to the FPC board with a two-dimensional code formed in the edge by laser drilling; S3, the black cover film is thermally pressed on the FPC board; S4, a light-transmitting cover film is pre-attached to a two-dimensional code window in the edge of the FPC board; S5, the light-transmittingcover film is thermally pressed on the two-dimensional code window in the edge of the FPC board; and S6, the black cover film and the light-transmitting cover film are baked and cured on the FPC board. Because the black cover film is windowed at the two-dimensional code window and the light-transmitting covering film is transparent, the two-dimensional code is in a recognizable protection state in all procedures after the black cover film is attached to the FPC board, and full-process tracing of an FPC with a black cover film is realized.

Description

technical field [0001] The invention relates to the field of manufacturing flexible circuit boards (FPC), in particular to a method for tracing the entire process of an FPC with a black cover film. Background technique [0002] With the development trend of intelligent manufacturing, the production information of products needs to be included in the system database management and control. There are many production processes of flexible circuit boards (FPC), which especially need to be included in the system database management and control such as MES. However, if there is a black cover film on the FPC, Because the black cover film is black, after it is pasted on the FPC, it will also cover the QR code area used for traceability on the edge of the FPC board, and the QR code cannot be recognized and read, resulting in the inability to associate the processes before and after the FPC black cover film is laminated Traceability, until the FPC with black cover film cannot realize ...

AI Technical Summary

Problems solved by technology

[0002] With the development trend of intelligent manufacturing, the production information of products needs to be included in the system database management and control. There are many production processes of flexible circuit boards (FPC), which especially need to be included in the system database management and control such as MES. However, if the FPC has a black cover film, Because the black cover film is black, after it is pasted on the FPC, it will also cover the QR code area used for traceability on the edge of the FPC board, and the QR code cannot be recognized and read, resulting in the inability to associate the processes before and after the FPC black cover film is laminated Traceability, until the FPC with black cover film cannot realize the full process traceability of production information

[0003] In view of this, the inventor of the present invention has made in-depth ideas on the many shortcomings and inconveniences caused by the incomplete production method of the FPC with black cover film that cannot realize the full process traceability of production information, and actively researched and improved the trial production to develop and design this product. invention

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