Automatic semiconductor package marking machine device seal stamp calling method and system

Abstract

This invention discloses an automatic stamp retrieval method and system for semiconductor packaging and testing marking machines. It establishes a connection between the marking machine and EAP / MES systems, and manages the relationship between stamp files and semiconductor products through the system. The method includes the following steps: 1) Stamp file storage: Each marking machine on the production line is assigned a unique equipment number; the stamp files are stored in a shared disk, forming a root directory for stamp file storage. The parameters of the stamp files include the equipment number of the marking machine and the batch number of the semiconductor product; 2) Stamp file retrieval: The equipment number of the marking machine and the batch number of the semiconductor product are obtained; the equipment number and batch number are matched to the corresponding stamp file in the root directory; 3) Stamp file loading: The corresponding stamp file is loaded into the marking machine to be used for marking. This invention achieves automatic stamp retrieval, avoids operational errors caused by manual stamp selection, and improves production efficiency.

Description

Technical Field

[0001] This invention relates to the field of semiconductor marking technology, and in particular to a method and system for automatically retrieving stamps from semiconductor packaging and testing marking machines. Background Technology

[0002] The semiconductor manufacturing process mainly includes: wafer slicing → chip bonding → baking → wire bonding → laser marking. For the marking process in semiconductor packaging and testing, the current standard procedure involves workers manually selecting a stamp file based on product specifications and loading it into the laser marking machine's printing program. The laser marking machine then automatically prints labels according to the stamp file. However, this method has the following drawbacks: firstly, the stamp files are difficult to manage; secondly, human error can easily lead to incorrect stamp selection; and thirdly, this manual stamp selection method is inefficient. Summary of the Invention

[0003] In order to solve the above problems, the present invention aims to provide a method and system for automatically retrieving the stamp of a semiconductor packaging and testing marking machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This invention provides a method for automatically retrieving stamps from semiconductor packaging and testing marking machines, characterized by comprising the following steps:

[0006] 1) Seal file storage:

[0007] Each marking machine on the production line is assigned a unique equipment number; the stamp files are stored in a shared drive, forming the root directory for stamp file storage. The parameters of the stamp files include the equipment number of the marking machine and the batch number of the semiconductor product.

[0008] 3) Retrieval of seal documents:

[0009] Obtain the device number of the marking machine and the batch number of the semiconductor product; match the device number and batch number to the corresponding stamp file in the root directory;

[0010] 2) Loading the seal file:

[0011] Load the corresponding seal file into the marking machine to perform the marking work.

[0012] The present invention also provides an automatic stamp retrieval system for implementing the above-mentioned automatic stamp retrieval method for semiconductor packaging and testing marking machine equipment, characterized in that it includes: a PDA terminal, an EAP system, a MES system, a marking machine control terminal, and a marking machine;

[0013] The PDA terminal communicates with the EAP system. The PDA terminal has a scanning module and a stamp retrieval request module. The scanning module is used to scan the equipment number of the marking machine and the batch number of the semiconductor product. The stamp retrieval request module is used to generate a stamp retrieval request signal after obtaining the equipment number and batch number, and transmit the stamp retrieval request signal to the EAP system.

[0014] The EAP system is a local system in the semiconductor production site. The EAP system communicates with the MES system. The EAP system has a stamp request information transmission module and a stamp retrieval instruction issuance module. The stamp request information transmission module is used to transmit the stamp request information to the MES system after receiving the stamp retrieval signal from the PDA terminal. The stamp retrieval instruction issuance module is used to issue the stamp retrieval instruction to the marking machine control terminal.

[0015] The MES system is a manufacturing execution system for semiconductor factories. The MES system has a root directory module, a matching module, and a stamp information reply module. The root directory module stores stamp files on a shared disk of the server to form a root directory. The stamp files include the device number and batch number. The matching module is used to match the corresponding stamp file after receiving the stamp request information transmitted by the EAP system. The stamp information reply module is used to send reply information to the EAP system.

[0016] The marking machine control terminal is located inside the marking machine and communicates with the EAP system to control the operation of the marking machine.

[0017] Furthermore, the automatic seal retrieval system for semiconductor packaging and testing marking machines provided by this invention may also have the following features: the parameters for the request seal information transmission module to transmit the request seal information to the MES system include the device number and batch number; the parameters for the reply information sent by the seal information reply module to the EAP system include the seal name and the complete seal path; the parameters for the seal retrieval instruction issuing module to issue the seal retrieval instruction to the marking machine control terminal include the device number, seal name, and the complete seal path.

[0018] Furthermore, the automatic stamp retrieval system for semiconductor packaging and testing marking machines provided by this invention may also have the following features: when the marking machine supports shared disk retrieval, the MES system establishes a communication connection with each marking machine, and the stamp file loading process is as follows: after receiving the stamp retrieval instruction issued by the EAP system, the marking machine control terminal directly retrieves the stamp file from the shared disk and loads the stamp file into the marking machine.

[0019] Furthermore, the automatic stamp retrieval system for semiconductor packaging and testing marking machine equipment provided by the present invention may also have the following feature: in the case where the marking machine does not support shared disk retrieval, the stamp file loading process is as follows: the marking machine control terminal copies the stamp file to the local directory, then retrieves the stamp file from the local directory, and loads the stamp file into the marking machine.

[0020] Furthermore, the automatic stamp retrieval system for semiconductor packaging and testing marking machine equipment provided by the present invention may also have the following feature: subdirectories are established in the root directory according to preset codes, and each subdirectory stores stamp template files corresponding to various marking machine models related to the preset code.

[0021] Furthermore, the automatic retrieval system for the stamp of a semiconductor packaging and testing marking machine provided by the present invention may also have the following features: each stamp file stored in the root directory includes the equipment number of the marking machine, the equipment model of the marking machine, the stamp file extension, the batch number of the semiconductor product, the customer number, and the order number.

[0022] Furthermore, the automatic stamp retrieval system for semiconductor packaging and testing marking equipment provided by this invention may also have the following features: the PDA terminal has a human-machine interaction display interface, and the "main interface" of the human-machine interaction display interface is equipped with a "stamp retrieval" button. When the user triggers the "stamp retrieval" button, the human-machine interaction display interface is displayed as a scanning interface, and the scanning module can work; when the user does not trigger the "stamp retrieval" button, the scanning module does not work.

[0023] Furthermore, the automatic seal retrieval system for semiconductor packaging and testing marking machine equipment provided by this invention may also have the following features: the seal retrieval instruction issuing module issues a seal retrieval instruction to the marking machine control terminal based on the operation of the PDA terminal. Specifically, after receiving the reply information from the MES system, the seal retrieval instruction issuing module generates a seal retrieval instruction and sends the corresponding reply information to the PDA terminal. The human-machine interaction display interface is displayed as a "Seal Retrieval" interface, which displays a "Retrieve Seal" button for user confirmation. After the user triggers the "Retrieve Seal" button, the seal retrieval instruction issuing module issues a seal retrieval instruction to the marking machine control terminal.

[0024] The beneficial effects of this invention are:

[0025] The automatic stamp retrieval system for semiconductor packaging and testing marking machines of this invention establishes a connection between the marking machine and the EAP and MES systems. Through the functional modules formed by the system's computer software program, it manages the relationship between stamp documents and semiconductor products, solving the problem of automated production of semiconductor packaging and testing marking machines. Before the equipment starts operation, the stamp is checked, the stamp is automatically retrieved, and the record is tracked. The entire operation is completed automatically by the system, avoiding operational errors caused by human selection of stamps and improving production efficiency. Attached Figure Description

[0026] Figure 1 This is a basic flowchart of the automatic stamp retrieval system for semiconductor packaging and testing marking machine equipment in this embodiment of the invention;

[0027] Figure 2 This is a schematic diagram of a subdirectory in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the PDA main interface in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the PDA stamp calling interface in an embodiment of the present invention. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the following embodiments, in conjunction with the accompanying drawings, will specifically illustrate the technical solution of this invention.

[0031] <Example>

[0032] This embodiment of a method for automatically retrieving stamps from a semiconductor packaging and testing marking machine includes the following steps:

[0033] 1) Seal file storage:

[0034] Each marking machine on the production line is assigned a unique equipment number. Specifically, each marking machine in the production workshop is affixed with a unique equipment number, and the relevant production information of the marking machine is associated with the equipment number in the stamp document.

[0035] The stamp files are stored on a shared drive, forming the root directory for stamp file storage. The parameters of the stamp files include the equipment number of the marking machine and the batch number of the semiconductor product.

[0036] 2) Retrieval of seal documents:

[0037] Obtain the equipment number of the marking machine to be marked and the batch number of the semiconductor products to be marked.

[0038] Match the obtained device number and batch number to the corresponding seal file in the root directory.

[0039] 3) Loading the seal file:

[0040] After obtaining the corresponding seal file, load the corresponding seal file into the marking machine to perform the marking work.

[0041] This embodiment also provides an automatic seal retrieval system, which can realize the above-mentioned automatic seal retrieval method for semiconductor packaging and testing marking equipment. The system includes: a PDA terminal, an EAP system, a MES system, a marking machine control terminal, and a marking machine.

[0042] The PDA terminal communicates with the EAP system. The PDA terminal has a scanning module and a stamp retrieval request module.

[0043] The scanning module is used to scan the equipment number (marker ID) of the marking machine and the batch number (batch ID) of the semiconductor products.

[0044] The seal retrieval request module is used to generate a seal retrieval request signal after obtaining the device number and batch number, and then transmit the seal retrieval request signal to the EAP system.

[0045] The PDA terminal is equipped with a display screen showing the human-computer interaction interface, which includes a main interface, a scanning interface, and a stamp access interface. The main interface is as follows: Figure 3 As shown, the main interface includes a "Seal Recall" button. When the user triggers this button, the human-computer interaction display switches to the scanning interface, and the scanning module begins operation. When the user does not trigger the "Seal Recall" button, the scanning module remains inactive. The seal recall interface is shown below. Figure 4 As shown, the seal retrieval interface displays information about the seal file to be retrieved, as well as a "Retrieve Seal" button for the user to confirm the retrieval.

[0046] The EAP system communicates with the MES system. The EAP system is a local system in the semiconductor production site, but in practice it can be a host computer on the production site. The EAP system has a module for requesting and transmitting stamp information and a module for issuing stamp retrieval instructions.

[0047] The seal request information transmission module is used to transmit the seal request information to the MES system after receiving the seal request retrieval signal from the PDA terminal. The parameters of the requested seal information include the device number and batch number.

[0048] The seal retrieval instruction sending module is used to send seal retrieval instructions to the marking machine control terminal. The parameters of the sent seal retrieval instruction include the device number, seal name, and complete seal path. This seal retrieval instruction sending module sends the seal retrieval instruction to the marking machine control terminal based on the user operation on the PDA terminal.

[0049] The MES system is an existing manufacturing execution system for semiconductor factories. The MES system has a root directory module, a matching module, and a stamp information reply module.

[0050] The root directory module stores the stamp files on the server's shared drive, forming the root directory. Each stamp file includes the device number and batch number. Each stamp file stored in the root directory contains, but is not limited to, the marking machine's device number (marking machine ID), the marking machine's model, the stamp file extension, the semiconductor product's batch number (batch ID), customer number, and order number. See also... Figure 2 The root directory contains subdirectories named according to preset codes. Each subdirectory stores stamp template files for various marking machine models associated with that preset code. These preset codes can be internal customer codes or other production-related codes.

[0051] The matching module is used to match the corresponding stamp file with the marking machine ID and batch ID after receiving the stamp request information transmitted by the EAP system, and obtain the complete path of the stamp file and the stamp name in the shared disk.

[0052] The seal information reply module is used to send reply information to the EAP system. The parameters of the reply information include the seal name and the complete path of the seal.

[0053] The marking machine control terminal is connected to the EAP system. The control terminal is located within the marking machine; in this embodiment, it controls the label printing operation via the Daemon program. In this embodiment, the marking machine is a laser marking machine.

[0054] See Figure 1 The workflow of the automatic seal retrieval system in this embodiment is as follows:

[0055] Step S1: Use PDA scanning to obtain device serial number and batch number

[0056] Users can locate the "Stamp Call" button on the main interface of the PDA terminal and click it. The PDA terminal will then display a scanning interface, allowing the scanning module to scan the batch number of semiconductor products and the device number on the marking machine.

[0057] Step S2: The PDA sends a request for seal retrieval to the EAP.

[0058] After obtaining the device number and batch number, the PDA terminal's seal retrieval module generates a seal retrieval request signal and transmits the signal to the EAP system.

[0059] Step S3: EAP sends the seal request information to MES.

[0060] After receiving the stamp retrieval signal from the PDA terminal, the EAP system's stamp request information transmission module transmits the stamp request information to the MES system.

[0061] Step S4: MES sends feedback information to EAP

[0062] After receiving the requested stamp information from the EAP system, the MES system's matching module matches the corresponding stamp file using the marking machine ID and batch ID, along with the complete path of the stamp file on the shared drive and the stamp name. The stamp information reply module then sends a response containing the complete path and stamp name back to the EAP system.

[0063] Step S5: EAP issues a stamp retrieval command to the marking machine control terminal.

[0064] The EAP system's seal retrieval instruction sending module sends a seal retrieval instruction to the marking machine control terminal. Based on the user's operation on the PDA terminal, the seal retrieval instruction sending module sends the seal retrieval instruction to the marking machine control terminal. Specifically, after receiving the response information from the MES system, the seal retrieval instruction sending module generates a seal retrieval instruction and simultaneously sends the corresponding response information to the PDA terminal. The PDA terminal's human-machine interface displays a "Seal Retrieval" interface (e.g., ...). Figure 4 As shown in the image, the "Seal Retrieval" interface displays a "Retrieve Seal" button for user confirmation. Only after the user clicks this button will the seal retrieval command issuing module send a seal retrieval command to the marking machine control terminal. The EAP system automatically records the historical record of issued seal retrieval commands.

[0065] Step S6: The marking machine control terminal sends the stamp loading file to the marking machine.

[0066] In actual production, this loading process can be divided into the following two scenarios:

[0067] Scenario 1: When the marking machine supports shared disk retrieval, the MES system establishes a communication connection with each marking machine. The process of loading the stamp file is as follows: After receiving the stamp retrieval instruction issued by the EAP system, the marking machine control terminal directly retrieves the stamp file from the shared disk and loads the stamp file into the marking machine.

[0068] Scenario 2: If the marking machine does not support shared disk access, the stamp file loading process is as follows: The marking machine control terminal copies the stamp file to the local directory, then retrieves the stamp file from the local directory and loads the stamp file into the marking machine.

[0069] The marking machine uses the loaded stamp to laser print labels.

[0070] Step S7: The marking machine control terminal sends the stamp retrieval result back to EAP.

[0071] After the seal file is loaded, the marking machine control terminal sends the seal retrieval result back to the EAP system.

[0072] Step S8: EAP sends stamp retrieval results to PDA

[0073] The EAP system sends the seal retrieval results back to the PDA terminal, and the process ends.

[0074] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A method for automatically retrieving stamps from a semiconductor packaging and testing marking machine, characterized in that, Includes the following steps: Step S1: The PDA terminal scans to obtain the device number and batch number; Step S2: The PDA terminal sends a request signal to the EAP system to retrieve the seal. After obtaining the device number and batch number, the PDA terminal's seal retrieval module generates a seal retrieval request signal and transmits the seal retrieval request signal to the EAP system. Step S3: The EAP system sends the stamp request information to the MES system: After receiving the stamp retrieval signal from the PDA terminal, the EAP system's stamp request information transmission module transmits the stamp request information to the MES system. The parameters of the stamp information include the device number and batch number. Step S4: The MES system sends a response message to the EAP system: After receiving the requested stamp information transmitted by the EAP system, the matching module of the MES system matches the corresponding stamp file with the marking machine ID and batch ID, as well as the complete path and stamp name of the stamp file in the shared disk. The stamp information reply module feeds back the reply information containing the complete path and stamp name to the EAP system. Step S5: The EAP system sends a stamp retrieval command to the marking machine control terminal: The EAP system's seal retrieval instruction sending module sends a seal retrieval instruction to the marking machine control terminal. The seal retrieval instruction sending module sends the seal retrieval instruction to the marking machine control terminal based on the user's operation on the PDA terminal. The parameters of the seal retrieval instruction include the device number, seal name, and complete seal path. Step S6: The marking machine control terminal sends the stamp loading file to the marking machine. The marking machine uses the loaded stamp to perform laser label printing. The loading process is divided into the following two cases: Scenario 1: When the marking machine supports shared disk retrieval, the MES system establishes a communication connection with each marking machine. The process of loading the stamp file is as follows: After receiving the stamp retrieval instruction issued by the EAP system, the marking machine control terminal directly retrieves the stamp file from the shared disk and loads the stamp file into the marking machine. Scenario 2: If the marking machine does not support shared disk retrieval, the stamp file loading process is as follows: The marking machine control terminal copies the stamp file to the local directory, then retrieves the stamp file from the local directory and loads the stamp file into the marking machine; Step S7: The marking machine control terminal sends the stamp retrieval result back to the EAP system: After the seal file is loaded, the marking machine control terminal sends the seal retrieval result back to the EAP system; Step S8: The EAP system sends the stamp retrieval result to the PDA terminal, and the process ends.

2. An automatic seal retrieval system, used to implement the automatic seal retrieval method for semiconductor packaging and testing marking machine equipment as described in claim 1, the automatic seal retrieval system comprising: PDA terminal, EAP system, MES system, marking machine control terminal, marking machine; The PDA terminal is communicatively connected to the EAP system, and the PDA terminal has: The scanning module is used to scan the equipment number of the marking machine and the batch number of the semiconductor products. The seal retrieval request module is used to generate a seal retrieval request signal after obtaining the device number and the batch number, and transmit the seal retrieval request signal to the EAP system. The EAP system is a local system at the semiconductor production site. The EAP system is communicatively connected to the MES system, and the EAP system has the following features: The seal request information transmission module is used to transmit seal request information to the MES system after receiving a seal request retrieval signal from the PDA terminal. The seal retrieval instruction sending module is used to send seal retrieval instructions to the marking machine control terminal; The MES system is a semiconductor factory manufacturing execution system, and the MES system has: The root directory module stores the stamp files on a shared drive of the server, forming the root directory. These stamp files include a device number and a batch number. The device number refers to a unique identifier assigned to each marking machine on the production line, and the batch number refers to the batch number of the semiconductor product. The matching module is used to match the device number and batch number to the corresponding seal file in the root directory after receiving the requested seal information transmitted by the EAP system. The seal information reply module is used to send reply information to the EAP system. The marking machine control terminal is installed in the marking machine. The marking machine control terminal is connected to the EAP system and loads the corresponding seal file into the marking machine to perform the marking work, thereby controlling the operation of the marking machine.

3. The automatic seal retrieval system as described in claim 2, characterized in that: in, The root directory contains subdirectories created according to preset codes. Each subdirectory stores a stamp template file corresponding to a certain type of marking machine model associated with that preset code.

4. The automatic seal retrieval system as described in claim 2, characterized in that... Also includes: Each stamp file stored in the root directory includes the marking machine's device number, the marking machine's device model, the stamp file extension, the semiconductor product's batch number, customer number, and order number.

5. The automatic seal retrieval system as described in claim 2, Its features are: The PDA terminal has a human-computer interaction display interface, and the "main interface" of the human-computer interaction display interface has a "stamp recall" button. When the user triggers the "Seal Call" button, the human-computer interaction display interface is displayed as a scanning interface, and the scanning module can start working; The scanning module does not work when the user does not trigger the "stamp recall" button.

6. The automatic seal retrieval system as described in claim 5, characterized in that: in, The seal retrieval instruction issuing module issues a seal retrieval instruction to the marking machine control terminal based on the operation of the PDA terminal, specifically as follows: After receiving the response information from the MES system, the seal retrieval instruction sending module generates a seal retrieval instruction and sends the corresponding response information to the PDA terminal. The human-computer interaction display interface is displayed as a "Seal Retrieval" interface, which displays a "Retrieve Seal" button for user confirmation. After the user triggers the "Retrieve Seal" button, the seal retrieval instruction sending module sends a seal retrieval instruction to the marking machine control terminal.

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