A method for producing a dc b plate enabling tracing of sat pictures

Abstract

This invention discloses a DCB board production method for tracing SAT images, comprising the following steps: drawing a master board drawing and reserving coding positions; etching to form a DCB master board corresponding to the master board drawing; printing a master board QR code on the reserved coding positions on the master board; reading the master board QR code and uploading the master board information; scanning the master board and uploading the SAT image; binding the master board information and the SAT image; post-processing the master board; printing several small product QR codes on the DCB master board and cutting the DCB master board into several small products; reading the small product QR codes and binding the small product information with the master board information. This invention enables traceability tracking of SAT image information for anomalies discovered by the client and final inspection.

Description

Technical Field

[0001] This invention relates to the field of DCB substrate manufacturing technology, and more particularly to a DCB board production method that enables clients to trace SAT images. Background Technology

[0002] Power electronics technology is a crucial supporting technology for the national economy, widely involved in various industrial sectors and social life. Currently, DCB boards (copper-clad ceramic substrates) are commonly used as substrates for packaging electronic devices. In the current post-processing of copper-clad ceramic substrates, SAT scanning is typically performed on the etched substrate, and the resulting SAT images are saved. However, in practice, when anomalies occur in small parts cut from the motherboard at the customer's location or during final inspection, it is difficult to trace the anomaly back to the motherboard, making it difficult to effectively identify the cause of the anomaly and thus hindering efficient product processing improvements. Therefore, developing a new DCB board manufacturing method to overcome the aforementioned problems in the existing technology is a direction that requires further research by those skilled in the art. Summary of the Invention

[0003] The purpose of this invention is to provide a DCB board production method that enables client-side traceability of SAT images, allowing for the tracing of motherboard conditions for anomalies discovered by the client or final inspection, and achieving efficient tracking of the causes of anomalies and production line improvement.

[0004] This invention discloses a DCB board production method for tracing SAT images, which includes the following steps:

[0005] Step 100: Draw the master board drawing using CAD software and create a window on the master board drawing. The window serves as a reserved coding position for the master board QR code.

[0006] Step 200: Spray etching and etching of the copper-clad ceramic substrate using acidic solution in the horizontal etching line to form a DCB master board corresponding to the master board drawing;

[0007] Step 300: A motherboard QR code is generated by printing a pre-reserved marking position on the motherboard using a laser marking device. The motherboard QR code is automatically generated based on the motherboard information.

[0008] Step 400: Based on the barcode reader, read the motherboard QR code on the DCB motherboard, decode the motherboard information corresponding to the motherboard QR code, and upload the motherboard information to the control center;

[0009] Step 500: Scan the DCB motherboard using an ultrasonic scanning detector to form a motherboard SAT graphic corresponding to the DCB motherboard, and upload the motherboard SAT graphic to the control center;

[0010] Step 600: The control center binds the motherboard information and the motherboard SAT graphic; in practice, the control center can be configured to be integrated with the ultrasonic scanning detector.

[0011] Step 700: Perform post-processing on the DCB motherboard;

[0012] Step 800: A number of small product QR codes are printed on the DCB motherboard using a laser marking device, and the DCB motherboard is cut into several small products, so that each small product retains a small product QR code; the small product QR code is automatically generated based on the small product information;

[0013] Step 900: Based on the barcode reader, read the QR code of each of the miniature products, decode the miniature product information corresponding to the QR code of the miniature product, upload the miniature product information of each miniature product to the control center and bind it to the motherboard information.

[0014] Preferably, in the above-mentioned DCB board production method, step 100 includes: the window is set on the process edge of the motherboard drawing, and when the width of the process edge is greater than 5mm, the window is located at the center of the process edge.

[0015] Preferably, in the above-mentioned DCB board production method, step 300 includes: the motherboard information corresponding to the motherboard QR code includes: motherboard batch number and serial number; the code size of the motherboard QR code is configured to be 3*3mm. In practice, operators can automatically generate and set the motherboard QR code using the software built into the laser marking device. The motherboard information corresponding to the motherboard QR code can be expressed as: SAT process + motherboard batch number + serial number; wherein, the SAT process is fixed content used to identify SAT processing, and the motherboard batch number and serial number are variable content generated based on the actual situation of the motherboard.

[0016] Preferably, in the above-mentioned DCB board production method, step 400 includes: reading the motherboard QR code on the DCB motherboard using a Keyence SR-2000 barcode reader.

[0017] Preferably, in the above-described DCB board production method, step 500 includes: scanning the DCB motherboard based on an ultrasonic scanning detector, wherein the ultrasonic scanning detector outputs high-frequency sound waves with a frequency > 50 kHz to the DCB motherboard and receives echo signals to form a motherboard SAT pattern corresponding to the DCB motherboard.

[0018] Preferably, in the above-mentioned DCB board production method, step 600 includes: the control center forming and saving a fixed mapping relationship between the motherboard information and the motherboard SAT graphic to achieve the binding of the motherboard information and the motherboard SAT graphic.

[0019] Preferably, in the above DCB board production method, step 900 includes: reading the QR codes of each of the miniature products based on the Keyence SR-2000 barcode reader; forming and saving a fixed mapping relationship between the miniature product information and the motherboard information; the miniature product information includes: miniature product model, miniature product batch, and miniature product production time.

[0020] Compared with existing technologies, this invention binds SAT images to motherboard information during the DCB board manufacturing process and binds motherboard information to information of each individual product. This enables a traceability process where, when an anomaly occurs in a small product at the customer end or during final inspection, the motherboard information is traced based on the small product information, and the motherboard SAT image is traced a second time based on the motherboard information. This achieves efficient tracing of the causes of anomalies and rapid improvement of the production line. Detailed Implementation

[0021] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0022] Example 1:

[0023] A method for producing a DCB board that enables traceability of SAT images includes the following steps:

[0024] Step 100: Draw the master board drawing using CAD software and create a window on the master board drawing. The window serves as a reserved coding position for the master board QR code.

[0025] In this step, the window is positioned on the process edge of the master plate drawing. In practice, the dimensions of the master plate are uniform, all being 138mm*190mm; however, the dimensions of the smaller products required by the customer are inconsistent. Therefore, when drawing the drawings, the layout of the smaller products will correspondingly affect the remaining process edge dimensions of the master plate. In this application, the window position is set such that when the width of the process edge is greater than 5mm, the window is located at the center of the process edge.

[0026] In practice, operators can use CAD software to select two Mark points on the process edge and output the program through a window area. The two Mark points serve as the positioning of the motherboard, and the window drawing confirms the marking position.

[0027] Step 200: Spray etching and etching of the copper-clad ceramic substrate using acidic solution in the horizontal etching line to form a DCB master board corresponding to the master board drawing;

[0028] In this step, how to perform specific etching of the copper-clad ceramic substrate by referring to the master board drawing belongs to the category of traditional processing technology and is not the focus of protection of this application. Therefore, it will not be elaborated in this application.

[0029] Step 300: A motherboard QR code is generated by printing a pre-reserved marking position on the motherboard using a laser marking device. The motherboard QR code is automatically generated based on the motherboard information. The motherboard information corresponding to the motherboard QR code includes the motherboard batch number and serial number. The code size of the motherboard QR code is configured to be 3*3mm.

[0030] In this step, the operator can automatically generate and set the master board QR code using the software built into the laser marking device. The master board information corresponding to the master board QR code can be expressed as: SAT process + master board batch number + serial number; where SAT process is fixed content used to identify that this QR code involves SAT processing, and master board batch number and serial number are variable content generated based on the actual situation of the master board.

[0031] Step 400: Based on the Keyence SR-2000 barcode reader, read the motherboard QR code on the DCB motherboard, decode the motherboard information corresponding to the motherboard QR code, and upload the motherboard information to the control center; in this step, the control center is configured to be integrated with the ultrasonic scanning detector.

[0032] Step 500: Scan the DCB motherboard using an ultrasonic scanning detector. The ultrasonic scanning detector outputs high-frequency sound waves with a frequency > 50kHz to the DCB motherboard and receives echo signals to form a motherboard SAT pattern corresponding to the DCB motherboard.

[0033] In this step, how to utilize the reflection, refraction, scattering, and attenuation of high-frequency sound waves when they propagate inside the pure water medium to form an echo signal that can be received by the ultrasonic scanning detector probe, and how to reconstruct the SAT pattern of the motherboard through the echo signal, belong to the category of traditional processing technology and are not the focus of protection of this application. Therefore, they will not be elaborated in this application.

[0034] Step 600: The control center automatically forms and saves a fixed mapping relationship between the motherboard information and the motherboard SAT graphic through a preset program, thereby binding the motherboard information and the motherboard SAT graphic.

[0035] Step 700: Perform post-processing on the DCB motherboard;

[0036] In this step, the post-processing includes surface cleaning of the ceramic substrate using chemicals along the horizontal lines. This post-processing step falls under the category of traditional processing techniques and is not the focus of this application; therefore, it will not be elaborated upon further. Furthermore, the aforementioned post-processing step has no impact on the QR code on the motherboard.

[0037] Step 800: A number of small product QR codes are printed on the DCB motherboard using a laser marking device, and the DCB motherboard is cut into several small products, so that each small product retains a small product QR code; the small product QR code is automatically generated based on the small product information;

[0038] In this step, the position of the QR code on each of the small products on the motherboard can be customized according to the customer's actual needs.

[0039] Step 900: Using a Keyence SR-2000 barcode reader, read the QR codes of each miniature product and decode the miniature product information corresponding to the QR codes. The miniature product information includes: miniature product model, miniature product batch, and miniature product production time. Upload each miniature product information to the control center. The control center forms and saves a fixed mapping relationship between the miniature product information and the motherboard information based on a pre-stored program, thereby binding each miniature product information to the motherboard information.

[0040] In practice, the process of tracing anomalies at the client end or during final inspection is as follows:

[0041] When a small product exhibits an anomaly at the customer end or during final inspection, the Keyence SR-2000 barcode reader first reads the small product's QR code, decodes the corresponding product information, and uploads it to the control center. The operator then uses the fixed mapping between the small product information and the motherboard information stored in the control center to obtain the corresponding motherboard information. Subsequently, the operator continues to use the fixed mapping between the motherboard information and the motherboard SAT graphic stored in the control center to obtain the corresponding motherboard SAT graphic. This achieves traceability of the motherboard SAT graphic based on the anomaly of the small product. This enables efficient source tracing of the cause of the anomaly and allows for corresponding technical improvements to the production line based on the traceability results.

[0042] The embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A method for producing DCB boards that enables traceability of SAT images, characterized in that, Includes the following steps: Step 100: Draw the master board drawing using CAD software and create a window on the master board drawing. The window serves as a reserved coding position for the master board QR code. Step 200: Spray etching and etching of the copper-clad ceramic substrate using acidic solution in the horizontal etching line to form a DCB master board corresponding to the master board drawing; Step 300: A motherboard QR code is generated by printing a pre-reserved marking position on the motherboard using a laser marking device. The motherboard QR code is automatically generated based on the motherboard information. Step 400: Based on the barcode reader, read the motherboard QR code on the DCB motherboard, decode the motherboard information corresponding to the motherboard QR code, and upload the motherboard information to the control center; Step 500: Scan the DCB motherboard using an ultrasonic scanning detector to form a motherboard SAT graphic corresponding to the DCB motherboard, and upload the motherboard SAT graphic to the control center; Step 600: The control center binds the motherboard information and the motherboard SAT graphic; Step 700: Perform post-processing on the DCB motherboard; Step 800: A number of small product QR codes are printed on the DCB motherboard using a laser marking device, and the DCB motherboard is cut into several small products, so that each small product retains a small product QR code; the small product QR code is automatically generated based on the small product information; Step 900: Based on the barcode reader, read the QR code of each of the miniature products, decode the miniature product information corresponding to the QR code of the miniature product, upload the miniature product information of each miniature product to the control center and bind it to the motherboard information.

2. The DCB board manufacturing method according to claim 1, characterized in that, Step 100 includes: the window is set on the process edge of the master drawing, and when the width of the process edge is greater than 5mm, the window is located at the center of the process edge.

3. The DCB board manufacturing method according to claim 2, characterized in that, Step 300 includes: the motherboard information corresponding to the motherboard QR code includes: motherboard batch number and serial number; the code size of the motherboard QR code is configured as 3*3mm.

4. The DCB board manufacturing method according to claim 3, characterized in that, Step 400 includes: reading the motherboard QR code on the DCB motherboard using a Keyence SR-2000 barcode reader.

5. The DCB board manufacturing method according to claim 4, characterized in that, Step 500 includes: scanning the DCB motherboard based on an ultrasonic scanning detector, wherein the ultrasonic scanning detector outputs high-frequency sound waves with a frequency > 50 kHz to the DCB motherboard and receives echo signals to form a motherboard SAT pattern corresponding to the DCB motherboard.

6. The DCB board manufacturing method according to claim 5, characterized in that, Step 600 includes: the control center forms and saves a fixed mapping relationship between the motherboard information and the motherboard SAT graphic, thereby binding the motherboard information and the motherboard SAT graphic.

7. The DCB board manufacturing method according to claim 6, characterized in that, Step 900 includes: reading the QR codes of each of the miniature products using a Keyence SR-2000 barcode reader; forming and saving a fixed mapping relationship between the miniature product information and the motherboard information; the miniature product information includes: miniature product model, miniature product batch, and miniature product production time.