KR100920144B1 - System of integrating management for smd line - Google Patents

Abstract

The present invention is based on the IPC (International Standard) based on the control data according to the entire PCB assembly process, such as storage and management of SMD materials (parts) and solder, PCB assembly process, as well as the environment of the assembly site (line) and product shipment ( Client) By setting up a database for approval and detecting, storing, and controlling data generated when assembling the customer approval DB and the actual product, the entire process from material and solder management to product completion In addition to reducing the error rate and improving the ability to cope with errors,

When the recall occurs after the shipment of the product, by comparing the DB obtained for customer approval and the data generated during the mass production of the product, it is possible to accurately detect the error point due to the defect of the product and to identify the defected material by assembly time. The present invention relates to an SMD line integrated management system that dramatically reduces the cost by reducing the closure of a large number of product lot numbers when a conventional recall occurs.

SMD, Component, Integrated, Environmental Management, Materials, Specifications, Customer, Requirements, Barcode, MSA, MSD, Solder Lead Management, Worker Management, Time Management, Temperature and Humidity Management

Description

SMDM line integrated management system {SYSTEM OF INTEGRATING MANAGEMENT FOR SMD LINE}

1 is an overall configuration diagram of an SMD line integrated management system according to the present invention;

2 is a detailed circuit block diagram of a material management means according to an embodiment of the present invention;

3 is a detailed circuit block diagram of a solder management means according to an embodiment of the present invention;

Figure 4 is a detailed circuit block diagram of the screen printing means and chip mount means according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: material control means 20: solder control means

30: PCB loading means 40: screen printing means

50: chip mounting means 60: PCB unloading means

70: vision inspection means 80: I.C.T inspection

100: central control means 110: interface unit

120: main control unit 130: display unit

140: key input unit 150: storage unit

The present invention relates to an integrated management system of a PCB (Printed Circuit Board) assembly line of a Surface Mount Device (SMD) (hereinafter referred to as 'SMD'), and more particularly, to an SMD material (component) and a solder. As a database for client approval based on IPC (International Standard), control and management data according to the entire PCB assembly process including storage and management, PCB assembly process, environment of assembly site (line) and product shipment. By setting up and detecting and storing the data generated during assembly of the high-value approval DB and the actual product, the product defects can be generated by comparing with the DB for customer approval when a recall occurs after the product is shipped. The present invention relates to an SMD line integrated management system that can accurately detect and secure error points in accordance with the present invention, thereby reducing closures that have been recalled in large quantities by product lot number when a conventional recall occurs. .

In brief, the known SMD process, such as a loader, a screen printer, a chip mount, a release part device, a reflow, an unloader, etc. And sequentially supply the PCB substrate onto the assembly line using the apparatuses, and then automatically apply the cream solder to solder the components to the PCB copper foil (PAD), and apply the cream solder onto the PCB. SMD material (parts) and mold release parts are mounted on it, and after soldering, cream solder soldering is performed, and the finished PCB is automatically loaded in a magazine.

In the post process, it is a part that cools the heat. After cooling, the external inspection is carried out. After repairing the defects caused by mis-insertion, omission or distortion of the parts by manual repair, the faulty part or short circuit of the circuit is made through ICT equipment. After detecting and repairing the cold solder, and finally removing only the prototype of the PCB, the final product is made through inspection in the final process.

However, if a recall is generated from the customer after the assembled product is shipped through the SMD process, the product is subject to recall by the product lot number of the errored product. Nevertheless, the product lot was recalled in units of lot numbers (for example, all products in a single shipment), so that the producer side often suffered enormous economic losses.

The present invention has been made under the above-mentioned background, and an object of the present invention is to maintain and manage SMD materials (parts) and solder, as well as the PCB assembly process, as well as the environment of the assembly site (line) and the process of PCB assembly. By setting the control data as a client approval database based on IPC (international standard), and detecting, storing and controlling the data generated when assembling the expensive approval DB and the actual product, And to provide an SMDM line integrated management system to reduce the error rate of the entire process from the management of the solder to the completion of the product, and to improve the ability to cope with errors.

Another object of the present invention is to accurately detect an error point due to a product defect, by accurately comparing the data generated when the product is actually mass-produced with a customer approval DB, which is already obtained when a recall occurs after the product is shipped, and a material having a defect When, how and when, by which worker, which product is printed in which printer environment of which solder in what temperature and humidity environment, how and what chip parts (including whether parts are well managed) are mounted on PCB It is possible to clearly understand, and to provide a SMD line integrated management system that dramatically reduced the cost by reducing the closing of the large number of recalls in the unit lot number when the conventional recall occurs.

The present invention for achieving the above object is a PCB loading means for loading the PCB to be mounted on the assembly line, screen printing means for screen-printing the PCB loaded on the line, and chip mount for automatically mounting the material on the PCB Means, a PCB unloading means for unloading the PCB on which the material (component) is mounted through the chip mounting means from the main line, a vision inspection means for performing vision inspection and ICT inspection of the PCB, and an ICT inspection means. In the including an SMD manufacturing process system,

A device that manages a material room in which various materials are loaded and stored in a reel form, and detects temperature and humidity data of a material room in which materials are stored, and manages time after opening a moisture sensitive material (MSD) from a sealed state. Of course, the material management means for detecting the temperature and humidity in the dehumidifier, the first-in, first-out data and bill of material (BOM) data of all materials to provide this information to the central control means;

As a means for managing solder, it detects the temperature and humidity of solder, detects the temperature of the refrigerator where solder is stored, and uses the information such as the type of solder and solder operation management time (atmospheric temperature and disposal time) as a central control means. Providing solder management means; And

Various data inputted from the material management means are stored and displayed in real time for each item and time, and at the same time, the already stored customer approval DB, the temperature and humidity data of the material room, the temperature and humidity data of the dehumidifier, and the time of opening the MSD material. Compare and compare the data and display the result as good or bad, and at the same time store and display various data inputted from the solder management means in real time by item and time, and at the same time the already stored customer approval DB and solder Central control means for displaying and storing the result as good or bad by comparing and comparing the temperature and humidity data, refrigerator temperature data, type of solder, ambient temperature and waste time of solder, and first-in-first-out data of loading room material and lead material More,

The screen printing means detects the pressure and inclination of the squeegee used in screen printing, and further provides a kind of squeegee and a kind of screen mask,

The chip mounting means detects the temperature and humidity on the line and the fine dust on the line, detects the misunderstanding and material replacement time of the material in parts and lot numbers, and detects the current production quantity and lead replenishment cycle. Further provide information to the central control means,

Correspondingly, the central control means stores and displays various data input from the screen printing means and the chip mount means in real time for each item and time, and at the same time, the pressure and inclination data of the already stored customer approval DB and squeegee, Displaying and storing the result as good or bad by comparing squeegee type and screen mask type data, temperature and humidity data on line, fine dust data on line, misplacement and material change time data, and lead replenishment cycle data. It features.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall configuration diagram of an SMD line integrated management system according to the present invention.

As shown, the present invention SMD line integrated management system material management means 10, solder management means 20, PCB loading means 30, screen printing means 40, chip mount means 50, PCB language It includes a loading means 60, vision inspection means 70, ICT inspection means 80 and the central control means (100).

The present invention SM line integrated management system configured as described above is preceded by the following configuration.

(1) Attachment of barcode with specific information

The barcode is affixed to all SMD materials, PCBs and chip mounters, including moisture sensitive materials (MSDs).

The SMD material is configured in the form of a reel in which the material is wound. A barcode is attached to the surface of the reel, and the part type number (p / n) and the lot number (lot / n) are recorded on the barcode.

In the PCB, information identifying the PCB (product-specific) is recorded in a barcode.

The chip mounter is equipped with a bar code with specific information at a site where the feeder coupled with the material reel is mounted on one side. The specific information includes ① line information, ② equipment name information, and ③ feeder seat information.

(2) Construction of database for client approval

The DB for customer approval is reference data constructed based on IPC (international standard), and is to secure evidence data of product defects that can be presented to customers at the time of product shipment or product recall.

The customer approval DB is as follows.

(a) MSD material level and humidity (process, storage), service time, bake time control (for the purpose of containment of bad type from the MSD), first in, first out management data

(b) Solder cream refrigerator temperature and humidity, solder cream working time management, first-in, first-out management, squeeze pressure in the printer, lead replenishment time management data

(c) Part number management data of digits to be inserted by feeder number of line, equipment, and equipment in the chip mounter

(d) Current progress quantity, total quantity, target quantity, defective quantity management, actual airborne efficiency, index (cpk) storage and display data

(e) line temperature and humidity control data;

(3) wired / wireless barcode readers

 Certain processes in accordance with the present invention include a wired or wireless barcode reader capable of detecting the value of the barcode.

First, the material management means 10 is a device for managing a material chamber in which various materials are loaded and stored in a reel form, and detects temperature and humidity data of a material chamber in which materials are stored, and detects moisture sensitive material (MSD). After opening from the sealed state, it detects temperature and humidity in the dehumidifier as well as time management, detects first-in, first-out data and bill of materials (BOM) data of all materials and provides this information to the central control means 100. Give it.

Looking at the material management means 10 configured in this way in more detail with reference to Figure 2, the material management means 10,

Using the temperature detection sensor 11a and the humidity detection sensor 11b, the material room temperature and humidity detection unit 11 for detecting the temperature and humidity of the material room, the temperature detection sensor 12a and the humidity detection sensor 12b are used. Dehumidifier temperature and humidity detection unit 12 for detecting the temperature and humidity of the dehumidifier, the first bar code reader 13 for detecting the first-in, first-out of all materials in the loading room by reading the bar code attached to the material, and MSD materials Includes first input means (e.g., key input section) 14 for inputting a time (time point) opened from the sealed state.

The material management means 10 stores the data detected through the material room temperature and humidity detector 11, the dehumidifier temperature and humidity detector 12, the first bar code reader 13 and the first input means 14. It transmits to the main control unit 120 of the central control unit 100 through the interface unit 110.

The main controller 120 stores and displays various data inputted from the material management means 10 in real time for each item and time, and simultaneously stores the temperature and humidity data of the customer approval DB, the material room, and the dehumidification box. Compare and compare the temperature and humidity data, the data of the opening time of the MSD material, and mark the result as good or bad and save.

For example, the opening point data of the MSD material may indicate a failure of the MSD material when a certain time elapses.

In addition, the first-in, first-out data of the material and the bill of material (BOM) database (DB) already stored in comparison to compare and display the result as good and bad.

The solder management means 20 is a means for managing solder, detects the temperature and humidity of the solder, and detects the temperature of the refrigerator in which the solder is stored to provide these information to the central control means (100).

Looking at the solder management means 20 configured in this way in more detail with reference to Figure 3, the solder management means 20,

The solder temperature and humidity detector 21 which detects the temperature and humidity of the solder using the temperature detection sensor 21a and the humidity detection sensor 21b, and the temperature of the refrigerator in which the solder is stored using the temperature detection sensor 22a are measured. A second bar code for reading a refrigerator temperature detector 22 to detect and a barcode attached thereto to detect ambient temperature and waste time of solder according to the type of solder and the cap opening, and to detect first-in, first-out of the loading chamber material and lead material. A reader 23 and second input means 24.

The solder management means 20 may interface data 110 detected through the solder temperature and humidity detector 21, the refrigerator temperature detector 22, the second barcode reader 23, and the second input means 24. And transmits to the main control unit 120 of the central control unit (100).

The main controller 120 stores and displays various data input from the solder management means 20 in real time for each item and time, and at the same time, the already stored customer approval DB and solder type, solder temperature and humidity data. Compare and compare refrigerator temperature data, solder ambient temperature and disposal time data, first-in, first-out data of loading room materials and lead materials, and mark the result as good or bad.

For example, when the ambient temperature atmosphere and the disposal time of the solder elapse, the defective product of the solder is displayed.

In addition, the first-in, first-out data of the BOM DB and materials (including lead materials) already stored are compared and displayed and stored as good or bad.

The PCB loading means 30 loads the PCB on which the material is to be mounted onto the assembly line.

The screen printing means 40 is a means for screen printing the PCB loaded in the line, and detects the type of squeegee used in the solder printing process, the angle and pressure of the squeegee, the species of the stencil mask, and centrally controls the information. Provided by means 100.

The chip mounting means 50 is a means for automatically mounting the material on the PCB, the material reel is wound in the form of a reel, and the component reel is coupled to one side and the other side is coupled to the main body (chip mounter) By using barcode, it judges whether material suitable for feeder of chip mounter is jammed in comparison with DB for customer approval and performs mismanagement and lot management of material, and detects time, temperature and humidity of chip installation And fine dust on the line is provided to the central control means (100).

The screen printing means 40 and the chip mounting means 50 will be described in more detail with reference to FIG. 4.

First, the screen printing means 40 is a pressure detection unit 41 for detecting the pressure of the solder using the pressure detection sensor 41a, and a squeegee inclination detection unit for detecting the slope of the squeegee using the inclination detection sensor 42a (42).

In addition, the screen printing means 40 further includes an unshown input means for inputting the type of squeegee and the type of stencil mask.

The chip mount means 50 uses a line temperature and humidity detection unit 51 and a particle sensor 52a to detect temperature and humidity on a line using a temperature detection sensor 51a and a humidity detection sensor 51b. Fine dust detection unit 52 that detects fine dust on the line and barcodes attached to the material (parts reel) and chip mounts to detect misplacement and material replacement time in part number and lot number units. And a third bar code reader 53 for detecting the third and third input means 54 for inputting a lead replenishment period.

The main controller 120 stores and displays various data input from the screen printing means 40 and the chip mount means 50 in real time for each item and time, and at the same time the pressure of the DB and solder for customer approval already stored. Compare the data, the slope data of the squeegee, the temperature and humidity data on the line, the fine dust data on the line, the time the material is loaded, the misplacement and material change time data, and the lead replenishment cycle data. Save it.

For example, when the lead replenishment cycle has elapsed, a defect of the lead replenishment cycle is displayed.

In addition, it compares and compares the already-stored production quantity initial value and the currently produced product quantity, and displays and stores the result.

The PCB unloading means 60 unloads the PCB on which the material (component) is mounted from the main line through the chip mounting means 50.

The vision inspection means 70 is a means for inspecting the vision of the PCB, the ICT inspection means 80 is a means for inspecting the ICT of the PCB.

Meanwhile, the central control means 100 is a means for centrally controlling various commands connected to the aforementioned means, and includes an interface unit 110, a main control unit 120, a display unit 130, and a key input unit 140. And a storage unit 150.

As described above, the main controller 120 compares the real-time data provided from the respective means with data such as a customer approval DB, a BOM DB, and a production quantity initial setting value, which are already stored in the storage unit 150. To store and print the result.

In addition, the display unit 130 displays the result data output from the main control unit 120 on the screen, the key input unit 140 inputs various functions and control key signals to the main control unit 120 The storage unit 150 stores data from the above-described DB and each of the currently detected means.

In addition, according to the present invention, the central control means 100 may be further connected to an external communication means.

The external communication means includes an email sending means and a mobile phone mail sending means.

The e-mail sending means transmits the stored result data from the central control means 100 to e-mails of previously stored customers and administrators.

The mobile phone Mary transmission means transmits the result data stored from the central control means 100 to the mobile phone of the pre-stored customer and manager by text mail.

The overall operation of the present invention SM line integrated management system configured as described above will be described.

First, all SMD materials, including moisture sensitive materials (MSD), have component type number (p / n) and lot number (lot / n), PCB identification (product-specific) information on the PCB, and line information on the chip mounter. The bar code is attached to record the equipment name and feeder seat information.

And the central control means 100 stores a database for customer approval (DB).

The DB for customer approval may include (a) temperature and humidity (process and storage), usage time, bake time management (for the purpose of blocking bad type source from MSD), first in, first out management data, (b) Refrigerator temperature and humidity of solder cream, operation time management of solder cream, first-in-first-out management, squeeze pressure control in the printer, lead replenishment time management data, (c) feeder number of equipment to prevent mis-insertion in chip mounter Part number management data of the place to be entered, (d) Current progress quantity, total quantity, target quantity, defective quantity management, actual air efficiency, index (cpk) storage and display data, and (e) line temperature and humidity management data. .

The company then begins to manufacture the product on the PCB that the customer ordered.

First, in the material management means 10, the temperature and humidity value of the material room detected through the material room temperature and humidity detection unit 11, and the temperature and humidity of the dehumidifier detected through the dehumidifier temperature and humidity detection unit 12 Value, first-in first-out data of the material detected through the first barcode reader 13, and the opened time (time) data of the MSD material input through the first input means 14 through the interface unit 110. Transmission to the main control unit 120 of the central control unit 100.

In this case, the main controller 120 stores various data input from the material management means 10 in the storage unit 150 for each item and time in real time, and displays the data on the display unit 130. At the same time, in comparison with the items corresponding to the customer approval DB and bill of material (BOM) DB that is already stored in the storage unit 150, the result is stored in the storage unit 150 again and the display unit 130 and the result Display as good or bad.

Therefore, the operator can see the result of the determination of the quantity of output through the display unit 130, it is possible to recognize that an error has occurred in the current material management means (10).

Next, in the solder management means 20,

Temperature and humidity data of the solder detected through the solder temperature and humidity detector 21, temperature data of the refrigerator in which the solder detected through the refrigerator temperature detector 22 is stored, and the second barcode reader 23 are detected. First-in first-out data of the lead material, and the ambient temperature standby and disposal time data of the solder according to the opening of the cap input through the second input means 24 through the interface unit 110, the main control unit 120 of the central control unit 100 Send to).

Here, the main controller 120 stores various data input from the solder management means 20 in the storage unit 150 for each item and time in real time, and displays the data on the display unit 130. At the same time, in comparison with the items corresponding to the customer approval DB and bill of material (BOM) DB that is already stored in the storage unit 150, the result is stored in the storage unit 150 again and the display unit 130 and the result Display as good or bad.

Then, the material is loaded into the assembly line PCB through the PCB loading means (30).

In the screen printing means 40 and the chip mounting means 50,

The pressure data of the solder detected through the pressure detector 41, the slope (angle) data of the squeegee detected through the squeegee slope detector 42, the temperature on the line detected through the line temperature and humidity detector 51, and Humidity data, fine dust data on the line detected by the particle sensor 52a and the fine dust detector 52, misplacement and material replacement time data detected by the third bar code reader 53, current production quantity data And, the type of squeegee, the type of stencil mask, lead replenishment cycle data input through the third input means 54 is transmitted to the main controller 120 of the central controller 100 through the interface unit 110. .

The main controller 120 stores and displays various data inputted from the screen printing means 40 and the chip mount means 50 through the storage unit 150 and the display unit 130 by item and time in real time. At the same time, the customer approval DB stored in the storage unit 150 and the pressure data of the solder, the slope data of the squeegee, the temperature and humidity data on the line, the fine dust data on the line, the data of the misplacement and material change time, the lead replenishment cycle data For comparison, the result is displayed as good or bad by the display unit 130 and stored in the storage unit 150.

In addition, it compares and compares the already-stored production quantity initial value and the currently produced product quantity, and displays and stores the result.

Subsequently, the PCB on which the material (component) is mounted from the chip mounting means 50 through the PCB unloading means 60 is referred to as unloading, through the vision inspection means 70 and the ICT inspection means 80. Inspect PCB vision and ICT and complete product manufacturing.

In addition, the central control means 100 transmits the result data stored in the e-mail or text form from the central control means 100 to the e-mail or mobile phone of the customer and the administrator previously stored through the external communication means.

Thus, customers and managers can recognize the results in real time.

As described above, the present invention provides control data according to the entire PCB assembly process such as MD material (parts) and solder storage and management, PCB assembly process, assembly site (line) environment and product shipment to IPC (International Standard). By setting up a database for client approval based on the client, and detecting, storing, and controlling data generated during assembling the high-value approval DB and the actual product, the management of materials and solders is completed. This has the advantage of reducing the error occurrence rate for the entire process and improving the ability to cope with errors.

In addition, the present invention by contrasting the data generated when the production of the actual product and the customer approval DB already secured when the recall (Recall) after the shipment of the product, by accurately detecting the error time due to the product defects, materials such as defects Since the assembly time can be grasped by the assembly time, the cost is reduced dramatically by reducing the closing of the large recall by the lot number of the product when the conventional recall occurs.

Claims (7)

PCB loading means 30 for loading the PCB on which the material is to be mounted to the assembly line, screen printing means 40 for screen printing the PCB loaded on the line, and chip mount means 50 for automatically mounting the material on the PCB. And, PCB chip unloading means 60 for unloading the PCB (material) is mounted from the main line through the chip mounting means 50, vision inspection means for performing the vision inspection and ICT of the PCB In the SMD manufacturing process system comprising a 70 and ICT inspection means 80, A device for managing a material room in which various materials are loaded and stored in a reel type, and a material room temperature and humidity detection unit detecting temperature and humidity of a material room using a temperature detection sensor 11a and a humidity detection sensor 11b ( 11) Dehumidifier temperature and humidity detection unit 12 for detecting the temperature and humidity of the dehumidification box using the temperature detection sensor 12a and the humidity detection sensor 12b, and the bar code attached to the material to read all the loading chamber A first bar code reader 13 for detecting first-in, first-out of the material, and first input means 14 for inputting the time (time) when the MSD material is opened from the sealed state. Detect, open the moisture sensitive material (MSD) from the sealed state, detect temperature and humidity in the dehumidifier as well as time management, detect first-in, first-out (BOM) data of all materials Central control means (10 Material management means (10) for providing as 0); As a means for managing the solder, using the solder temperature and humidity detection unit 21 and the temperature detection sensor 22a for detecting the temperature and humidity of the solder using the temperature detection sensor 21a and the humidity detection sensor 21b. The refrigerator temperature detection unit 22 for detecting the temperature of the refrigerator in which the solder is stored, the second barcode reader 23 for detecting the first-in, first-out of the loading room material and the lead material by reading the attached barcode, and the solder according to the opening of the cap. A second input means 24 for detecting the ambient temperature atmosphere and the disposal time of the battery and inputting the value thereof, detecting the temperature and humidity of the solder, and detecting the temperature of the refrigerator in which the solder is stored. Solder management means 20 for providing information of the work management time (at room temperature and waste time) to the central control means (100); And Store and display various data inputted from the material management means 10 in real time for each item and time, and at the same time, the already stored customer approval DB, the temperature and humidity data of the material room, the temperature and humidity data of the dehumidifier, and the MSD material. Compare and compare the data at the time of opening and display the result as good or bad, and simultaneously store and display various data input from the solder management means 20 by item and time, and at the same time Compares the approval DB and solder temperature and humidity data, refrigerator temperature data, solder type, solder ambient temperature and disposal time data, and first-in-first-out data of the loading room material and lead material, and displays the result as good or bad. And further comprising a central control means for storing and 100, The screen printing means 40 is a pressure detector 41 for detecting the pressure of the squeegee using the pressure detection sensor 41a, and a squeegee inclination detection unit 42 for detecting the slope of the squeegee using the tilt detection sensor 42a. And input means for inputting the type of squeegee and the type of stencil mask, further detecting the pressure and inclination of the squeegee used in screen printing, and further providing the type of squeegee and the type of screen mask, The chip mount means 50 uses a line temperature and humidity detection unit 51 for detecting temperature and humidity on a line using a temperature detection sensor 51a and a humidity detection sensor 51b, and a particle sensor 52a. Fine dust detection unit 52 that detects fine dust on the line and barcodes attached to materials (parts reel) and chip mounts to detect misplacement and material replacement time by part number and lot number unit, and the current production quantity And a third bar code reader 53 for detecting a temperature and a third input means 54 for inputting a lead replenishment period to detect temperature and humidity on a line and fine dust on a line. Detects the time in part number and lot number units, detects the current production quantity and lead replenishment cycle, and further provides the information to the central control means 100, Correspondingly, the central control means 100 stores and displays various data input from the screen printing means 40 and the chip mount means 50 in real time for each item and time, and at the same time for customer approval already stored. Compare and compare DB and squeegee pressure and slope data, squeegee type and screen mask type data, temperature and humidity data on line, fine dust data on line, misplacement and material change time data, and lead replenishment cycle data. SMD line integrated management system characterized in that it is marked as good or bad and stored. delete delete delete delete The method of claim 1, The central control means 100 compares and determines the real-time data provided from each means with setting data such as a customer approval DB, a BOM DB, and a production quantity initial setting value, which are already stored in the storage unit 150, and the result is determined. Main control unit 120 for storing and outputting the positive portion of the; A display unit 130 for displaying on the screen the result data output from the main control unit 120; A key input unit 140 for inputting a function and control key signal to the main controller 120; And And a storage unit (150) for storing data from the DB and the respective detected means. delete

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