阅读说明：本技术 带黑色覆盖膜的fpc全制程追溯方法 (FPC full-process tracing method with black cover film ) 是由 续振林 陈妙芳 于 2019-10-28 设计创作，主要内容包括：本发明公开了一种带黑色覆盖膜的FPC全制程追溯方法,包括步骤1：在黑色覆盖膜在与FPC板二维码对应的区域开窗制作出二维码窗口；步骤2：将黑色覆盖膜预贴合在已板边镭射钻孔二维码的FPC板上；步骤3：将黑色覆盖膜热压合在FPC板上；步骤4：将透光覆盖膜预贴合在FPC板板边的二维码窗口上；步骤5：将透光覆盖膜热压合在FPC板板边的二维码窗口上；步骤6：将黑色覆盖膜和透光覆盖膜烘烤固化在FPC板上。因黑色覆盖膜在二维码窗口上进行开窗处理、且透光覆盖膜是透光的,因此,在黑色覆盖膜贴合在FPC板后的各道工序,二维码均处于可被识别的保护状态,实现带黑色覆盖膜的FPC全制程追溯。(The invention discloses a FPC (flexible printed circuit) full-process tracing method with a black cover film, which comprises the following steps of 1: windowing a region, corresponding to the two-dimensional code of the FPC board, of the black covering film to manufacture a two-dimensional code window; step 2: pre-attaching a black covering film on the FPC board with the two-dimensional code of the plate edge laser drilling; and step 3: hot-pressing the black covering film on the FPC board; and 4, step 4: pre-attaching a light-transmitting covering film on a two-dimensional code window at the edge of an FPC board; and 5: hot-pressing the light-transmitting covering film on the two-dimensional code window at the edge of the FPC board; step 6: and baking and curing the black covering film and the light-transmitting covering film on the FPC board. Because the black covering film performs windowing treatment on the two-dimensional code window and the light-transmitting covering film is light-transmitting, the two-dimensional code is in a recognizable protection state in each process after the black covering film is attached to the FPC board, and the whole process tracing of the FPC with the black covering film is realized.)

1. The FPC full-process tracing method with the black cover film is characterized by comprising the following steps of:

step 1: windowing a region, corresponding to the two-dimensional code of the FPC board, of the black covering film to manufacture a two-dimensional code window;

step 2: pre-attaching a black covering film on the FPC board with the two-dimensional code of the plate edge laser drilling;

and step 3: hot-pressing the black covering film on the FPC board;

and 4, step 4: pre-attaching a light-transmitting covering film on a two-dimensional code window at the edge of an FPC board;

and 5: hot-pressing the light-transmitting covering film on the two-dimensional code window at the edge of the FPC board;

step 6: and baking and curing the black covering film and the light-transmitting covering film on the FPC board.

2. The FPC full-process tracing method with black coverlay according to claim 1, wherein: the size of the two-dimension code window is a first preset distance which is expanded around on the basis of the size of the two-dimension code.

3. The FPC full-process tracing method with black coverlay according to claim 2, wherein: the first preset distance is 0.2-2 mm.

4. The FPC full-process tracing method with black coverlay according to claim 1, wherein: in the step 4, the periphery of the size of the light-transmitting covering film is expanded by a second preset distance on the basis of the size of the two-dimensional code window.

5. The FPC full-process tracing method with black coverlay according to claim 5, wherein: the second preset distance is 0.2-2 mm.

6. The FPC full-process tracing method with black coverlay according to claim 1, wherein: the light-transmitting covering film is a yellow transparent covering film.

Technical Field

The invention relates to the field of Flexible Printed Circuit (FPC) manufacturing, in particular to a whole process tracing method for an FPC with a black cover film.

Background

Along with the development trend of intelligent manufacturing, the production information of products needs to be brought into a system database for management and control, the production process flow of flexible printed circuit boards (FPCs) is multiple, and the production process flow of flexible printed circuit boards (FPCs) particularly needs to be brought into system database management and control such as MES (manufacturing execution system) for management and control, however, if the FPCs are provided with black covering films, the black covering films are black, after being attached to the FPCs, two-dimensional code regions for tracing the edges of the FPCs are covered, two-dimensional codes cannot be identified and read, the process before and after the laminating of the black covering films of the FPCs cannot be associated and traced, and the.

In view of the above, the present inventors have made extensive studies and research on various defects and inconveniences resulting from the perfection of a manufacturing method in which the FPC with the black cover film cannot realize the full process tracing of the production information.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a full-process tracing method for an FPC with a black cover film.

In order to achieve the above purpose, the solution of the invention is:

the FPC full-process tracing method with the black cover film comprises the following steps of:

step 1: windowing a region, corresponding to the two-dimensional code of the FPC board, of the black covering film to manufacture a two-dimensional code window;

step 2: the black covering film is pre-attached to the FPC board with the two-dimensional code laser drilled at the board edge;

and step 3: the black covering film is hot-pressed on the FPC board;

and 4, step 4: the light-transmitting covering film is pre-attached to the two-dimensional code window at the edge of the FPC board;

and 5: the light-transmitting covering film is thermally pressed on the two-dimensional code window at the edge of the FPC board;

step 6: the black covering film and the light-transmitting covering film are baked and cured on the FPC board.

Preferably, the size of the two-dimensional code window is a first preset distance which is expanded around on the basis of the size of the two-dimensional code.

Preferably, the first preset distance is 0.2-2 mm.

Preferably, in the step 4, the size of the light-transmitting covering film is a second preset interval which is expanded from the periphery to the periphery of the two-dimensional code window size, and the second preset interval is 0.2-2 mm.

Preferably, the light-transmitting cover film is a yellow transparent cover film.

After the scheme is adopted, in each process step before the black covering film is not attached to the FPC board, the production information of the product can be traced by identifying the two-dimensional code of the FPC board; after the manufacturing method is adopted, because the black covering film performs windowing treatment on the two-dimensional code window and the light-transmitting covering film is light-transmitting, the two-dimensional code is in a recognizable protection state in each process after the black covering film is attached to the FPC board and is not influenced by the damage of subsequent processes, the two-dimensional code on the FPC board can be scanned in each process, the information of the two-dimensional code and the production information of a current work station are related into system data such as MES (manufacturing execution system) and the like, and the whole process tracing of the FPC with the black covering film is realized.

Drawings

FIG. 1 is an FPC board with two-dimensional codes drilled on board edges in a laser mode;

FIG. 2 is a window-opened black covering film of a two-dimensional code area on a board edge;

FIG. 3 is a schematic view of a black cover film attached to an FPC board;

FIG. 4 is a schematic view of a light-transmitting cover film attached to a two-dimensional code window at the edge of an FPC board;

FIG. 5 is a process flow of the present invention.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1 to 5, the present invention provides a method for tracing the whole process of FPC with black cover film, which comprises the following steps:

step 1: the black covering film 2 is windowed in the area corresponding to the two-dimensional code 11 of the FPC board 1 to manufacture a two-dimensional code window 22, as shown in FIG. 2;

step 2: the black cover film 2 is pre-attached to the FPC board 1 of the two-dimensional code 11 which is subjected to plate edge laser drilling, as shown in FIG. 3;

and step 3: the black covering film 2 is hot-pressed on the FPC board 1;

and 4, step 4: the light-transmitting covering film 3 is pre-attached to the two-dimensional code window 22 at the edge of the FPC board 1;

and 5: the light-transmitting cover film 3 is hot-pressed on the two-dimensional code window 22 at the edge of the FPC board 1, as shown in FIG. 5;

step 6: the black cover film 2 and the light-transmitting cover film 3 are baked and cured on the FPC board 1.

As shown in fig. 3, the size of the two-dimensional code window 22 is a preset distance a that is extended from the periphery of the two-dimensional code 11, and the preset distance a is preferably 0.2-2 mm.

As shown in fig. 4, the size of the light-transmitting cover film 3 is based on the size of the two-dimensional code window 22, and the periphery of the light-transmitting cover film is extended by a preset distance B, wherein the preset distance B is preferably 0.2-2 mm.

Preferably, the light-transmitting cover film 3 is preferably a conventional yellow transparent cover film.

After the scheme is adopted, in each process before the black covering film 2 is not attached to the FPC board 1, the production information of the product can be traced by identifying the two-dimensional code 11 of the FPC board 1; after the manufacturing method is adopted, because the black covering film 2 is subjected to windowing processing on the two-dimensional code window 22 and the light-transmitting covering film 3 is light-transmitting, the two-dimensional code is in a recognizable protection state in each process after the black covering film 2 is attached to the FPC board 1 and is not damaged and influenced by subsequent processes, the two-dimensional code 11 on the FPC board 1 can be scanned in each process, the information of the two-dimensional code and the production information of a current work station are related into system data such as MES (manufacturing execution system) and the like, and the whole-process tracing of the FPC with the black covering film is realized.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.