CN115829589A - Product tracing method for PCB production - Google Patents
Product tracing method for PCB production Download PDFInfo
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- CN115829589A CN115829589A CN202211433389.XA CN202211433389A CN115829589A CN 115829589 A CN115829589 A CN 115829589A CN 202211433389 A CN202211433389 A CN 202211433389A CN 115829589 A CN115829589 A CN 115829589A
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Abstract
The invention provides a product tracing method for PCB production, which comprises the following steps: executing a first procedure on the operation board and setting a first preset information code; detecting that the operation board enters a second procedure, identifying and confirming the first preset information code, then executing the second procedure, and setting a second preset information code; and detecting that the operation board enters a third process, and identifying and confirming the first preset information code or the second preset information code until the production of the PCB is completed. The product tracing method for PCB production provided by the invention adopts the information code which can be read quickly by the code reader to replace the original digital number sprayed on the operation board in the production process, not only can adapt to the code setting mode of the operation board, but also can endow the operation board with more comprehensive information, can also greatly improve the identification efficiency, and ensures the accurate and complete production operation of the operation board among various working procedures.
Description
Technical Field
The invention relates to the technical field of PCB production processes, in particular to a product tracing method for PCB production.
Background
PCB (Printed Circuit Board), which is called Printed Circuit Board in chinese, is an important electronic component, which is a support for a plurality of electronic components and is also a carrier for electrical interconnection of electronic components. The process flow for producing the PCB is long, including but not limited to cutting, inner dry film, laminating, drilling, and copper plate plating. Each process flow needs to ensure that an action object is a preset object, particularly, each board needs to be ensured to correspond to data in a system in the following forming and electrical measurement, so that the PCB in production needs to be accurately traced, and the problems of board leakage, wrong sequence or wrong entry of defective products and the like are avoided.
Tracing the PCB, wherein a digital batch number mode is adopted conventionally, a production batch number is correspondingly imprinted on each PCB, and a new serial number is correspondingly assigned after each process step. However, the tracing method often has the following problems, for example, content information is less, a digital batch number only contains main batch number information, code-spraying and printing equipment is expensive, code reading equipment needs a high-definition camera lens, the manufacturing cost is expensive, in addition, during identification, a picture needs to be taken and formed first, an identification system carries out machine identification according to the picture, the identification process is longer and slower, and the misjudgment rate is also high.
Disclosure of Invention
In view of the above, there is a need to provide a product tracing method for PCB production, which addresses at least one of the problems mentioned above.
The invention provides a product tracing method for PCB production, which comprises the following steps:
executing a first procedure on the operation board and setting a first preset information code;
detecting that the operation board enters a second procedure, identifying and confirming the first preset information code, then executing the second procedure, and setting a second preset information code;
and detecting that the operation board enters a third process, and identifying and confirming the first preset information code or the second preset information code until the production of the PCB is completed.
In one embodiment, the second process step comprises several process steps; the step of executing the second process after detecting that the operation board enters the second process and identifying and confirming the first preset information code comprises the following steps:
and before each process step is executed, identifying and confirming the first preset information code, and then executing the subsequent process steps.
In one embodiment, the first predetermined information code is a DI two-dimensional code or a drilling two-dimensional code.
In one embodiment, the drilling two-dimensional code is a snowdrop two-dimensional code.
In one embodiment, the step of setting the first preset information code includes: and drilling the two-dimensional code of the snow dragon drill by one pair of the operation boards.
In one embodiment, the second predetermined information code is a batch number for preventing solder resist etching.
In one embodiment, the first preset information code includes master batch number information, divorce batch number information and layer information.
In one embodiment, the first preset information code and the second preset information code are arranged on the same side of the operation board.
In one embodiment, the first preset information code and the second preset information code are square plane codes, and the side length is 10-16 mm.
The technical scheme provided by the embodiment of the invention has the following beneficial technical effects:
the product tracing method for PCB production provided by the invention adopts the information code which can be read quickly by the code reader to replace the original digital number sprayed on the operation board in the production process, not only can adapt to the code setting mode of the operation board, but also can endow the operation board with more comprehensive information, can also greatly improve the identification efficiency, and ensures the accurate and complete production operation of the operation board among various working procedures.
Additional aspects and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic flow chart illustrating a product tracing method for PCB production according to an embodiment of the present invention;
FIG. 2 is a process flow diagram of PCB production in accordance with one embodiment of the present invention;
fig. 3 is a schematic diagram illustrating information code distribution of a PCB according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Possible embodiments of the invention are given in the figures. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein by the accompanying drawings. The embodiments described by way of reference to the drawings are illustrative for the purpose of providing a more thorough understanding of the present disclosure and are not to be construed as limiting the present invention. Furthermore, if a detailed description of known technologies is not necessary for illustrating the features of the present invention, such technical details may be omitted.
It will be understood by those skilled in the relevant art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that, as used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
The technical solution of the present invention and how to solve the above technical problems will be described in detail with specific examples.
As shown in fig. 1, the product tracing method for PCB production mainly includes the following steps:
s100: and executing a first procedure on the operation board and setting a first preset information code. When the operation board enters a certain operation process, particularly an operation process needing code assignment is started, after the operation of the process is completed, a preset information code is set on the operation board, the information code is stored in the operation process in advance, and the production department who arranges the list determines specific information according to a production plan.
S200: and detecting that the operation board enters a second procedure, identifying and confirming the first preset information code, then executing the second procedure, and setting a second preset information code. When entering the next production process, namely the second process relative to the first process, the first preset information code on the operation board is read by the code reader, and the system determines that the information code corresponds to the information code stored in the database, so that the operation board is indicated to enter the second process, and after the process is completed, the second preset information code is given, or the information modification or addition can be carried out on the first preset information code.
Each process may have a plurality of steps, the first preset information code may be set only after the first step, and only the reading is required in the remaining steps.
S300: and detecting that the operation board enters a third procedure, and identifying and confirming the first preset information code or the second preset information code until the production of the PCB is completed. And when the production process reaches the later stage of the whole production process, the information code is directly identified and confirmed, and the PCB is packaged and put in storage.
It should be noted that there are many steps in the PCB production of the present application, and according to the actual production needs, S100 may be repeated alone multiple times, or S100 and S200 may be repeated in combination multiple times, or S200 may be repeated alone multiple times, and then S300 is performed. Because each operation board or finished product PCB is provided with the preset information code which can be read by the code reader, the operation board or PCB can be traced at any time, and the accurate integrity of production or transportation is ensured.
The product tracing method for PCB production provided by the invention adopts the information code which can be read quickly by the code reader to replace the original digital number sprayed on the operation board in the production process, not only can adapt to the code setting mode of the operation board, but also can endow the operation board with more comprehensive information, can also greatly improve the identification efficiency, and ensures the accurate and complete production operation of the operation board among various working procedures.
Optionally, in an embodiment of the present application, the second process includes several process steps; the step of detecting that the operation board enters a second procedure, identifying and confirming the first preset information code and then executing the second procedure comprises the following steps: before each process step is executed, the first preset information code is identified and confirmed, and then the subsequent process steps are executed.
In the present embodiment, the foregoing S100 and/or S200 is embodied, as shown in fig. 2, in the actual production, for example, in the board cutting step, the DI two-dimensional code is first set in the inner layer, the DI two-dimensional code in the inner layer is identified in the inner layer inspection step, and in the subsequent browning and pressing step, only the operation of identifying the DI two-dimensional code in the inner layer is performed. Ensuring that the work plate has accurately undergone these process steps. Optionally, the first preset information code is a DI two-dimensional code or a drilling two-dimensional code. The step of post-processing after the press-fitting can be regarded as the first step of the second process, and the drilling two-dimensional code is arranged on the operation plate, and more specifically, the drilling two-dimensional code can be a two-dimensional code of a Xuelon drill. For the two-dimensional code of the snow auger drill, the mode of drilling the operation plate one by one is adopted, namely the two-dimensional code of the snow auger drill is drilled on the operation plate one by one. The two-dimensional code of the snow dragon drill comprises plate number information of the operation plate, the contents of the two-dimensional code of each plate are different, and only one plate and one drill can be used for high-order products. When setting up ordinary drilling two-dimensional code, can pile up batch drilling to set up the drilling two-dimensional code in batches.
Optionally, in another embodiment of the present application, the second preset information code is a solder resist batch number. The anti-welding laser etching batch number can be set by adopting a current common process mode and is mainly used for tracing finished products after the surface of the operation plate is processed.
Optionally, in a specific embodiment of the present application, the first preset information code includes master batch number information, unpicked batch number information, and layer information. In addition, specifically, when the first predetermined information code is a DI two-dimensional code, which includes the master batch number information, the divorce batch number information, the layer information, and the job number information, the job number can be traced back. When first preset information sign indicating number bores the two-dimensional code for the drilling, the content includes: the master batch number information, the unpacking batch number information and the layer information. When first preset information code is the snowflake drill two-dimensional code, the content includes: the system comprises main batch number information, disassembled batch number information, layer information and job number information. When the first preset information code is the anti-welding laser etching batch number, the content comprises: master batch number information and job board number information. Optionally, as shown in fig. 3, the first preset information code and the second preset information code are arranged on the same side of the operation board. Optionally, the first preset information code and the second preset information code are square plane codes, and the side length is 10-16 mm. Specifically, a 14 × 14 module is selected, the fault tolerance rate is 28% to 39%, and the misjudgment rate is greatly improved or reduced. The two-dimensional code adopts a DM (data matrix) code, the information code is regular in shape, the DM codes corresponding to the fixed information byte length have the same specification, and the two-dimensional code is suitable for being used as a PCB production tracing
In a specific embodiment, a more comprehensive implementation mode is adopted, and the following technical effects can be obtained:
1. the shape is regular, which is convenient for setting a plate frame;
2. the content information is more comprehensive, and comprises main batch number information, disassembled batch number information, layer information and operation board number information;
3. the cost of code reading equipment is greatly reduced, namely, the conventional code reader can identify the code;
4. the recognition efficiency is greatly improved, namely the shape is fixed, and the method is suitable for various station environments;
5. the misjudgment rate is also obviously improved, namely, a 14X 14 module is adopted at present, and the fault tolerance rate is 28 to 39 percent.
Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
The particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (9)
1. A product tracing method for PCB production is characterized by comprising the following steps:
executing a first procedure on the operation board and setting a first preset information code;
detecting that the operation board enters a second procedure, identifying and confirming the first preset information code, then executing the second procedure, and setting a second preset information code;
and detecting that the operation board enters a third process, and identifying and confirming the first preset information code or the second preset information code until the production of the PCB is completed.
2. The product tracing method for PCB production according to claim 1, wherein the second process comprises several process steps; the step of executing the second process after detecting that the operation board enters the second process and identifying and confirming the first preset information code comprises the following steps:
and before each process step is executed, identifying and confirming the first preset information code, and then executing the subsequent process steps.
3. The product tracing method for PCB production according to claim 1, wherein the first preset information code is a DI two-dimensional code or a drilled two-dimensional code.
4. The product tracing method for PCB production of claim 3, wherein the drilling two-dimensional code is a Xuelon drill two-dimensional code.
5. The product tracing method for PCB production according to claim 4, wherein the step of setting the first preset information code comprises: and drilling the two-dimensional code of the snow dragon drill by one pair of the operation boards.
6. The product tracing method for PCB production of claim 1, wherein the second predetermined information code is a solder resist laser etching batch number.
7. The product tracing method for PCB production according to claim 1, wherein the first preset information code includes master batch number information, split batch number information and layer information.
8. The product tracing method for PCB production according to claim 1, wherein the first preset information code and the second preset information code are disposed on the same side of the operation board.
9. The product tracing method for PCB production according to claim 1, wherein the first predetermined information code and the second predetermined information code are square planar information codes with a side length of 10-16 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211433389.XA CN115829589A (en) | 2022-11-16 | 2022-11-16 | Product tracing method for PCB production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211433389.XA CN115829589A (en) | 2022-11-16 | 2022-11-16 | Product tracing method for PCB production |
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| Publication Number | Publication Date |
|---|---|
| CN115829589A true CN115829589A (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211433389.XA Pending CN115829589A (en) | 2022-11-16 | 2022-11-16 | Product tracing method for PCB production |
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| CN (1) | CN115829589A (en) |
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Address after: 435000 No.88 Daqi Avenue, Wangren Town, Huangshi economic and Technological Development Zone, Hubei Province Applicant after: Chaoying Electronic Circuit Co.,Ltd. Address before: 435000 No.88 Daqi Avenue, Wangren Town, Huangshi economic and Technological Development Zone, Hubei Province Applicant before: DYNAMIC ELECTRONICS (HUANGSHI) Co.,Ltd. |