KR102626430B1 - Apparatus for writing/verifying to multi channel emplying SMT(Surface Mount Technology) processing - Google Patents

Abstract

The embodiment relates to a multi-channel data writing/verification device in a SMT (Surface Mount Technology) process.
Specifically, this multi-channel data write/verification device first receives data from a PC through manual fastening and writes it to the target product. Therefore, in the embodiment, an SD card is embedded in the control PCB of the device to compare the data to the existing product. Shortens the light time by about 2 times. In other words, it is a high-speed writing method with built-in memory (SD Card).
In addition, in order to satisfy customer requests for speed and price of vehicle P-OLED source board EEPROM and flash memory, a multi-channel data write/verification device with parallel execution at twice the speed of the existing device is provided. It is characterized by providing.
In addition, it expands the existing one-channel work to multiple channels, and features writing/verification of up to 20 channels by fastening pin blocks.
Therefore, this eliminates the inconvenience of manually writing data on the product PCB in the data writing/verification device, and also provides a configuration to shorten the time depending on the high volume of data read or written to the product, and also reduces the price. Sometimes it happens.
Additionally, compared to existing writers, it is possible to expand channels from 1 channel to 20 channels, and data writing using the built-in SD card is more than twice as fast.

Description

Multi-channel data writing/verification device for SMT process {Apparatus for writing/verifying to multi channel emplicating SMT (Surface Mount Technology) processing}

The content disclosed in this specification relates to the field of data write/verify device technology used in the SMT (Surface Mount Technology) process. More specifically, when writing/verifying data on a product PCB, management information It relates to a data write/verify device that sets product data by performing a data write/verify operation on the product PCB under the control of a processing device.

Unless otherwise indicated herein, the material described in this section is not prior art to the claims of this application, and is not admitted to be prior art by inclusion in this section.

In general, the SMT (Surface Mount Technology) process is a surface mounting technology that mounts semiconductors, diodes, chips, etc. with multiple devices on a printed circuit board (PCB) and hardens them.

And, as shown in Figure 1, this SMT line process is performed in the order of applying lead to the substrate, mounting components such as IC chips, and combining the components using heat. At this time, inspection is performed for each process. Perform. For example, inspection of lead application condition, component and solder joint condition inspection, or component assembly condition, etc.

Specifically, in this case, there is a PCB inspection process among the SMT processes. At this time, the management information processing device receives product data from the PC and writes/verifies it on the PCB, and for this purpose, a data write/verification device is used.

However, looking at these data light/verification devices, there are many existing IC-based light devices, but the light devices in the assembled PCB state are performed manually.

Also, this light device is also expensive, so it can only light one channel at the same time.

In addition, since writing/verification is done manually without applying MES (Manufacturing Execution System), there is a high risk of leakage of Mi Lite products. Therefore, it is not easy to recruit skilled workers for manual work and direct control of light programs.

Additionally, the prior art literature on this background is only the patent literature below.

(Patent Document 1) KR20020974 Y1

For reference, the technology of Patent Document 1 reads data from an IC card using a floppy disk in a PC, and is intended to enable more convenient use of the IC card.

The disclosed content seeks to provide a multi-channel data write/verification device for the SMT process to improve the inspection speed and convenience of the data write/verification device for the PCB inspection process during the SMT process.

The multi-channel data writing/verification device of the SMT process according to the embodiment is:

First, the previous device used manual fastening and received data from a PC to write to the target product, but in this embodiment, an SD card is embedded in the control PCB of the device, shortening the writing time by about 2 times compared to existing products. In other words, it is a high-speed writing method with built-in memory (SD Card).

In addition, in order to satisfy customer requests for speed and price of vehicle P-OLED source board EEPROM and flash memory, a multi-channel data write/verification device with parallel execution at twice the speed of the existing device is provided. It is characterized by providing.

For this purpose, when writing and setting data from a management information processing device, etc. on the product PCB, each data type according to a number of different communication methods, such as SPI data type and I2C data type, is transferred to FPGA for each communication method. By converting data accordingly, high-speed data writing/verification is performed.

For example, if the data type of this FPGA is an SPI data type including automotive P-OLED Source Board EEPROM and flash memory, data conversion in the same format as the SPI communication format is performed in parallel. Perform write/verification.

Also, in the case of I2C data types including EEPROM, PGMA, TPIC, PMIC, Touch MCU, and LED Drive IC, serial writing/verification is performed without separate data conversion.

In addition, the existing one-channel work is expanded to multiple channels, and writing/verification of up to 20 channels is performed by fastening pin blocks. For reference, these multiple channels are provided in accordance with the number of product PCBs, and are channels for outputting data to be written or verified for each product PCB in batches or individually.

According to embodiments, in a general data writing/verification device, the inconvenience of manually writing to the product PCB is eliminated, and a configuration is provided to reduce time depending on the high volume of data read or written to the product. It also reduces prices.

Additionally, compared to existing writers, it is possible to expand channels from 1 channel to 20 channels, and data writing using the built-in SD card is more than twice as fast.

1 is a diagram for explaining a conventional SMT process
FIG. 2 is a diagram conceptually illustrating a multi-channel data writing/verification device of an SMT process according to an embodiment.
Figure 3 is a diagram schematically showing a multi-channel data writing/verification device of the SMT process according to an embodiment.
Figure 4 is a diagram showing the overall system applying the multi-channel data writing/verification device of the SMT process according to an embodiment.
Figure 5 is a block diagram showing the configuration of a multi-channel data writing/verification device of the SMT process according to an embodiment.
Figure 6 is a flow chart sequentially showing the operation of the multi-channel data writing/verification device of the SMT process according to an embodiment.

FIG. 2 is a diagram conceptually illustrating a multi-channel data writing/verification device for an SMT process according to an embodiment.

As shown in Figure 2, the multi-channel data write/verification device of the SMT process according to one embodiment expands the existing one-channel work to multiple channels, and can write up to 20 channels by fastening pin blocks. /Perform verification.

That is, this data write/verification device is equipped with a built-in SD card in advance, and when performing a data write/verification operation, data setting information is input from a management information processing device, etc. and stored in advance on the SD card. Then, data is collectively or individually set for each product PCB by writing/verifying each channel individually connected to each product PCB through communication for multiple different data types.

In addition, this built-in SD card, that is, the SD card is built into the control PCB of the device, shortening the writing time by about 2 times compared to existing products. In other words, it is a high-speed writing method with built-in memory (SD card).

In addition, the data light/verification device according to one embodiment is a parallel execution method at twice the speed of the existing one to satisfy customer requests for speed and price of vehicle P-OLED source board EEPROM and flash memory. Provides a channel data light/verification device.

To this end, when writing and setting data on the product PCB, each data type according to a number of different communication methods such as SPI data type and I2C data type is converted to FPGA according to each communication method, enabling high-speed Perform data write/verification.

For example, if the data type is an SPI data type including automotive P-OLED source board EPROM and flash memory, this FPGA performs write/verification in parallel with data conversion in the same format as the SPI communication format. Additionally, in the case of I2C data types including EpiROM, PGMA, TPIC, PMIC, Touch MCU, and LED Drive IC, serial writing/verification is performed without separate data conversion.

Figure 3 is a diagram schematically showing a multi-channel data writing/verification device for the SMT process according to an embodiment.

As shown in FIG. 3, the main components of the multi-channel data writing/verification device for the SMT process according to one embodiment include a CPU and FPGA board, a power supply board, a power switching board, and a contact pin block.

Additionally, this data light/verification device is connected to the PC UI, and at this time, about 40 types of data are stored on the PC, M/C is performed through simple S/W settings for each model, and data is saved/processed between processes by linking with MES. Analyze.

Here, the CPU and FPGA board select model data from the PC and write it after D/L from the CPU and FPGA board to the SD card. In addition, the SPI communication method of the existing device is applied to FPGA to improve communication speed through simultaneous parallel method.

In addition, when performing lighting, etc., the power supply board supplies power to the product PCB and uses a control communication method that allows communication and individual control with the power switching board.

Additionally, the power switching board individually controls power for each channel, detects voltage/current for each channel, and includes a protection function. In addition, when voltage and current are detected, measurement results are transmitted after downloading and verification for each channel, and the data logging function is performed by receiving these results from the PC UI.

FIG. 4 is a diagram illustrating the overall system applying the multi-channel data writing/verification device of the SMT process according to an embodiment.

As shown in FIG. 4, the system according to one embodiment includes a management information processing device 100, a multi-channel data writing/verification device 200 of an SMT process, and a product PCB.

First, the data writing/verification operation of this embodiment will be briefly described to first provide a basic understanding of this device (which belongs to the prior art).

For example, when the PC UI writes/verifies the product PCB, the management information processing device 100 manages the write/verify operation by performing two functions, such as monitoring and setting. Specifically, in the first monitoring, the management information processing device 100 displays the status of voltage, current, light, etc. for the channel as the START button of the PC UI is pressed. And, secondly, the setting sets the data to be written and the address value of the product and transmits it to the data writing/verification device 200 in one embodiment. At this time, only data stored in the SD card provided in the data writer/verification device 200 can be selected.

Next, when the data writing/verifying device 200 receives data setting information from the management information processing device 100 or the outside, it writes/verifies the data on the product PCB and sets the product data.

Additionally, as an additional function in addition to the above-mentioned functions, full data verification is performed to check whether or not there is an error in the data that has completed writing.

For example, when writing data, in order to check channel data, the data written from the PCB is transferred to the management information processing device 100, that is, the PC, and then compared with the original data, and the different parts are displayed on the UI screen. Display.

Additionally, the data that has been written is saved as a CSV file. In addition, after completing the test, the results are saved (Log File), and the barcode, test date and time, and the presence/absence of individual OK/NG judgments are also saved.

In addition, the inspection results are transmitted to the MES, and the power line is controlled separately to turn off the power in case of a short circuit or defect.

Meanwhile, in this state, according to one embodiment, the data write/verification device 200 has the following configuration.

1) First, the previous device used manual fastening and received data from a PC to write to the target product, but in one embodiment, an SD card is embedded in the control PCB of the device, shortening the writing time by about 2 times compared to existing products. In other words, it is a high-speed writing method with built-in memory (SD Card).

2) Additionally, in order to satisfy customer requests for speed and price of P-OLED source board EPROM and flash memory for vehicles, we provide a multi-channel data write/verification device with parallel execution at twice the speed of the existing product.

To this end, when writing and setting data on the product PCB, each data type according to a number of different communication methods such as SPI data type and I2C data type is converted to FPGA according to each communication method, enabling high-speed Perform data write/verification.

For example, if the data type is an SPI data type including automotive P-OLED source board EPROM and flash memory, this FPGA performs write/verification in parallel with data conversion in the same format as the SPI communication format.

Additionally, in the case of I2C data types including EpiROM, PGMA, TPIC, PMIC, Touch MCU, and LED Drive IC, serial writing/verification is performed without separate data conversion.

3) In addition, the existing one-channel work is expanded to multiple channels, and writing/verification of up to 20 channels is performed by fastening pin blocks.

Figure 5 is a block diagram illustrating the configuration of a multi-channel data writing/verifying device for the SMT process according to an embodiment.

As shown in FIG. 5, the multi-channel data writing/verification device of the SMT process according to one embodiment largely includes a main control unit 210 and a power unit 220.

And, this main control unit 210 includes a CPU, FPGA, and SD card (see a).

The main control unit 210 is first operated as before. When writing/verifying data on the product PCB, a data writing/verification operation is performed on the product PCB under the control of the management information processing device to set the product data. In this state, according to one embodiment, when performing a data write/verification operation, the main control unit 210 stores the data setting information from the management information processing device in advance to a built-in SD card and stores it in a number of different ways. Data is set collectively or individually for each product PCB by writing/verifying each channel individually connected to each product PCB through communication by data type.

When writing/verifying the data setting information, the power unit 220 receives the DAC voltage from the main control unit 210, sets the VCC voltage, and controls the user's input to the product PCB through I/O on/off control. Supplied according to your wishes.

Meanwhile, in addition, the main control unit 210 is configured as follows to perform this data write/verify operation.

That is, for example, the main control unit 210 largely includes a CPU 211, an FPGA 212, and an SD card (see a and b).

First, the SD card is a built-in type, and when writing/verifying the above-described data setting information, the data setting information is input from the management information processing device or directly input from the outside and stored.

Next, when the data setting information is stored in the SD card, the CPU 211 reads the data setting information from the built-in SD card, writes/verifies it for each channel, and sets the data for each product PCB.

Additionally, the FPGA 212 checks the data type of the current data when writing/verifying it on the product PCB under the control of the CPU 211. So, as a result of the above confirmation, if the current data type is an SPI data type including automotive P-OLED source board EP-ROM and flash memory, write/verify in parallel method is performed by data conversion in the same format as the SPI communication format. Additionally, in the case of I2C data types including EpiROM, PGMA, TPIC, PMIC, Touch MCU, and LED Drive IC, serial writing/verification is performed without separate data conversion. Meanwhile, in this case, the FPGA 212 sequentially stores this data in a FIFO, for example, and then transmits it to the product through SPI or QPI. It also controls the power unit based on setting information from the PC.

Figure 6 is a flow chart sequentially showing the operation of the multi-channel data writing/verification device of the SMT process according to an embodiment.

As shown in FIG. 6, the multi-channel data writing/verifying device of one embodiment first writes/verifies data on the product PCB as before, and performs a data writing/verifying operation under the control of the management information processing device. Perform on PCB and set product data.

In this state, the multi-channel data writing/verification device according to one embodiment performs the following operation, that is, a writing operation for data setting information.

a) First, when receiving data setting information through a management information processing device, etc., set the data/IC start address of the SPI communication method from the data type setting format for each communication method, and set the data/IC start address of the I2C communication method. Set (S606 ~ S610). In addition, power setting is also performed (S601 to S605), and this power setting includes voltage setting, current setting, power on/off time setting, and voltage and current blocking setting.

b) Next, when writing on the product PCB according to this setting information (S601), power is supplied to each product PCB (S602).

c) Then, data for the SPI data type is first read from the SD card as many as the set number of SPI write files (S603 to S604), and product IC data is written through the parallel writing/verification (S605).

d) So, after writing the SPI data type data, read the I2C data type data from the SD card as many as the set number of I2C write files (S606 ~ S608) to perform the serial writing/verification. By writing the product IC data, the data writing operation is completed (S609).

As described above, in one embodiment, the previous device was manually fastened and received data from a PC to write to the target product. So, in this case, an SD card is embedded in the control PCB of the device to double the writing time compared to the existing product. Shorten it to some extent. In other words, it is a high-speed writing method with built-in memory (SD Card).

In addition, in order to satisfy customer requests for speed and price of P-OLED source board EPROM and flash memory for vehicles, we provide a multi-channel data write/verification device with parallel execution at twice the speed of the existing product.

To this end, when writing and setting data on the product PCB, each data type according to a number of different communication methods such as SPI data type and I2C data type is converted to FPGA according to each communication method, enabling high-speed Perform data write/verification.

For example, if the data type is an SPI data type including automotive P-OLED source board EPROM and flash memory, this FPGA performs write/verification in parallel with data conversion in the same format as the SPI communication format. Additionally, in the case of I2C data types including EpiROM, PGMA, TPIC, PMIC, Touch MCU, and LED Drive IC, serial writing/verification is performed without separate data conversion.

In addition, the existing one-channel work is expanded to multiple channels, and writing/verification of up to 20 channels is performed by fastening pin blocks.

Therefore, this eliminates the inconvenience of manually writing data on the product PCB in the data writing/verification device, and also provides a configuration to shorten the time depending on the high volume of data read or written to the product, and also reduces the price. Sometimes it happens.

Additionally, compared to existing writers, it is possible to expand channels from 1 channel to 20 channels, and data writing using the built-in SD card is more than twice as fast.

Meanwhile, in addition, when this data writing/verification device provides various types of information, it diversifies the data from the configuration below and outputs it to the product PCB, thereby efficiently writing/verifying the data on the product PCB. .

To this end, first, the main control unit a) connects to the FPGA to perform write/verification by data type by the FPGA and performs data formats for a number of different data types, including the SPI data type and I2C data type. It is equipped with a port table that diversifies data and outputs it for each channel.

b) Then, when data is input from this FPGA, data is provided for each channel from the port table, enabling high-speed write/verification on multiple product PCBs.

On the other hand, in addition, when these data writing/verification devices provide various types of information, they maintain databases consistent with each other, thereby providing services quickly and conveniently.

For this purpose, the main control unit performs the following operations.

a) First, the management information processing device and the management information processing device each have the same table (including in the SD card) storing device registration information/data, and the match relationship for the table is set and registered in advance.

b) So, when changing information in a table, the tables are synchronized according to the matching relationship.

c) And, when synchronizing tables in this way, the databases are consistent by diversifying the data for each data type, including the SPI data type and the I2C data type.

On the other hand, additionally, when providing various types of information to the management side, these data writing/verification devices secure a connection in real time on the manager terminal, thereby allowing the information to be delivered quickly and easily.

To this end, the main control unit performs the following operations.

a) First, when communicating with the administrator terminal, first check whether the registered local communication network is connected, and if the local communication network is connected as a result of the confirmation, connect as the setting administrator public account corresponding to each different management work location. do.

b) If, as a result of the above confirmation, the local communication network is not connected, the connection to the registered wireless communication network is secondarily checked. If the confirmation result is that the wireless communication network is connected, the connection is made to an individual IP address.

c) As a result of the above confirmation, if the wireless communication network is not connected, the connection is made using the terminal identification number of the registered mobile communication network, thereby securing the connection with the administrator terminal.

On the other hand, when making a real-time connection with an administrator terminal like this, an IP table is used to monitor registered IPs and manage monitoring (or logs) according to access by unauthorized persons to ensure connection security.

a) Specifically, for this purpose, an IP table is first configured in advance, registering the administrator public account of the local communication network and the individual IP address of the wireless communication network.

b) Then, when an alarm is provided to the administrator terminal in this way, a HELLO message of the corresponding communication network is transmitted and the next hop switch IP address in the response result is extracted.

c) Next, check the switch IP address that is the same as this next hop switch IP address in the switch neighbor connection relationship list.

d) As a result of the above confirmation, if there is a switch IP address that is the same as the next hop switch IP address, it is checked whether the corresponding administrator public account or individual IP address is also in the IP table, and thus whether an unauthorized person is connected is checked.

e) As a result of the above confirmation, if the corresponding administrator public account or individual IP address is also in the IP table, a JOIN/PRUNE message is sent, thereby connecting to the corresponding communication network.

100: Management information processing device
200: Multi-channel data write/verification device for SMT process

Claims (4)

In the data writing and verification device that writes, verifies and sets product data on the product PCB under the control of the management information processing device,
A built-in SD card that receives data setting information from the management information processing device and stores it, a CPU that reads the data setting information from the SD card, writes, verifies, and sets each channel connected to the product PCB through data type-specific communication, and the CPU Check the data type of the current data, and if it is an SPI data type including the automotive P-OLED source board EP-ROM and flash memory, write and verify in parallel by converting the data in the same format as the SPI communication format, and perform parallel writing and verification using the EP-ROM and PGMA. , a main control unit with an FPGA that performs serial writing and verification in the case of I2C data types including TPIC, PMIC, Touch MCU, and LED Drive IC; and
A power unit that receives the DAC voltage from the main control unit, sets the VCC voltage, and supplies it to the product PCB through I/O on/off control; Including,

The light operation for the data setting information is,
A first step of providing the same management information processing device and a table storing device registration information and data, and setting and registering a matching relationship for the table in advance;
A second step of synchronizing the tables registered in the first step according to the matching relationship to match data for each data type of the SPI data type and the I2C data type;
A third step of providing a port table connected to the FPGA to output data for each channel for each data format of the SPI data type and the I2C data type;
A fourth step of setting the data/IC start address of the SPI communication method and the data/IC start address of the I2C communication method from the data type setting format for each communication method;
A fifth step of supplying power to the product PCB;
A sixth step of reading SPI data type data from the SD card as many as a set number of SPI write files and writing the product IC data to the port table through the parallel writing and verification; and
A seventh step of reading I2C data type data from the SD card as many as a set number of I2C write files for the product IC data written in the sixth step and writing them to the port table through serial writing and verification. A data light and verification device characterized in that.





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