KR20120053586A - Apparatus for generating bill of material for electronic part auto-inserting system and method thereof - Google Patents

Abstract

PURPOSE: An apparatus and method for generating a component are provided to visually display the size of a timing error by calculating and displaying a distance between a fan-in cell and an error fan-out cell. CONSTITUTION: A CAD device(100) includes an input unit(101) for receiving various control commands or set values from a user and a display unit(103) which displays a result screen according to a control command of the user. A control unit(110) includes a CAD processing unit(111) performing a CAD related function and a component list generating unit(113). Information with an error fan-out cell with a timing error is extracted by paring timing error information provided from an arranging unit. A linear distance between the fan-in cell and the error fan-out cell is calculated. A chip type figure is displayed with a magnification based on cell information provided from an arranging unit. Positions of the fan-in cell and the error fan-out cell are displayed on the figure.

Description

Apparatus for Generating Bill of Material for Electronic Part Auto-Inserting System and Method

The present invention relates to a parts list generating apparatus for an automatic parts insertion apparatus capable of generating a parts list to be provided to an automatic parts insertion apparatus used for manufacturing an electronic circuit board, and a method of generating the same.

In order to manufacture an electronic circuit board having electronic components soldered to a printed circuit board (PCB), first, the shape of the printed circuit board for soldering of various electronic components must be designed by CAD (Computer Aided Design). This is called art work. When the design of the printed circuit board by the CAD is completed, the CAD data is generated, and the manufacturing of the bare PCB is performed first based on the CAD data.

There are two types of electronic components mounted on a printed circuit board, an insert type and a surface mount type. Insert type has conductive legs like DIP (Dual In Package) chip, insert the solder into through hole of board and solder, and surface mount type like SMD (Surface Mounting Device) It is then attached to an adhesive pad on the open outer surface of and then soldered. Since most electronic circuit boards include both insertable and mounted components, a desired electronic circuit board may be completed by placing or inserting various electronic components on a completed printed circuit board and then soldering them. In the process, the process of inserting (or mounting) the electronic component on the printed circuit board is automatically performed by a so-called 'component automatic insertion device' (or mounter).

Automated component insertion device is a device that automatically inserts various electronic components on the printed circuit board, the information provided by the parts list according to the parts list (BOM Data: Bill Of Material Data) generated and provided by the CAD device According to the position on the printed circuit board. Therefore, the parts list should contain information about the list of parts to be inserted by the automatic part insertion device, the insertion position of the corresponding parts, the insertion direction, the rotation angle, and the like.

The problem is that the format of the parts list that can be processed is not uniform for each auto insertion device.

For example, to insert an axial type part, such as a resistance, from a part that is inserted through a through hole, some auto-insertion devices require a pin 1 coordinate (X, Y coordinate) of the part, length between pins, rotation, Data such as mounting surfaces are required. In other words, the auto-insertion device can operate correctly for axial components only by providing the length information between pins. Other autoinserts may require the coordinates of the center point of the part.

Furthermore, the contents of the parts list generated by each CAD device may also be different. When the CAD device generates a part symbol, the origin of the part is set to the automatic insertion position. The problem is that the coordinates that the library of components for printed circuit board design use as reference points can vary from person to person. That is, for some parts, pin 1 is the reference point, for some parts, the bottom left is the reference point, and sometimes the center coordinate of the part is the reference point. Therefore, the parts list generated by the CAD device based on the parts library may be different for each CAD user, and sometimes the parts library or the CAD data may not have the information desired by the autoinsert device.

In order to solve this problem, the conventional automatic insertion apparatus user has to take the hassle of manually modifying and using the parts list generated by the CAD apparatus for the automatic insertion apparatus operated by him.

SUMMARY OF THE INVENTION An object of the present invention is to provide a parts list generating device for an automatic part insertion device and a method for generating the same, which can generate a parts list to be provided to an automatic part insertion device used for manufacturing an electronic circuit board.

To achieve the above purpose

According to the invention

1 is a block diagram of a CAD device equipped with a parts list generating unit of the present invention;
2 is a parts list according to an embodiment of the present invention;
3 is a block diagram of a system including a parts list generating apparatus according to another embodiment of the present invention;
,
to be.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the drawings.

Referring to Figure 1, the parts list generating apparatus of the present invention is provided in a configuration coupled to the CAD system (CAD System) (100). Here, the CAD device 100 may generally be a computer system operated by a central processing unit (or a processor chip) and an operating system (OS) program executed by the central processing unit, or the like.

The CAD device 100 may design a printed circuit board (PCB) for an electronic circuit board according to a user's control command. To this end, the CAD device 100 includes an input unit 101 for receiving various control commands or setting values from a user, and a display unit for displaying a result screen (for example, a drawing in progress or a drawing completed) according to the user's control command. (103).

In addition, the CAD device 100 includes a control unit 110 for controlling the operation of the entire CAD device including the design of the printed circuit board. The control unit 110 includes a CAD processing unit 111 for performing CAD-related functions, and a parts list generation unit 113 for generating a parts list in association with the CAD processing unit 111.

When the CAD device 100 is the computer system described above or the like, the CAD processing unit 111 writes a CAD recorded in the CPU, an operating system program, and a program language capable of processing the designated series of instructions based on these. (CAD) software. The parts list generator 113 may also be software written in a program language capable of processing a designated series of instructions based on an operating system program in a computer system which is the CAD device 100.

In addition, the CAD device 100 includes a storage medium 105, and the storage medium 105 includes a component library of various components necessary for performing the function of the CAD processing unit 111, and the CAD processing unit 111. The CAD data generated by is stored.

A component library for manufacturing a printed circuit board is information on a part used for manufacturing a printed circuit board, and a soldering part (for example, each pin of a chip is inserted and soldered) is provided on the printed circuit board to solder the corresponding part. Part of the part), its size information, coordinates of each part of the soldering part, and basic information (name, value, etc.) of the part, and information on the number of pins included in the part.

The CAD processing unit 111 generates CAD data by designing a printed circuit board (PCB) for an electronic circuit board according to a user's control command input through the input unit 101, and for the operation through the display unit 103. Display the user interface and the resulting drawing. In addition, the CAD processing unit 111 provides information on the parts used in the printed circuit board under design at the request of the parts list generating unit 113.

The parts list generating unit 113 requests and reads the parts processing information of all the parts used in the printed circuit board currently designed to the CAD processing unit 111 and generates a parts list by referring to the parts library stored in the storage medium 105. do.

Parts information provided by the CAD processing unit 111 is the part number (Part No.), Part Name, Part Number (RefDes), Value (Gemetry.Height), the number of pins Pins, Layers, Rotations, and Origin of Part.

The part number is an identifier assigned for the management of each part, the part name is the name of the corresponding part, and the unique number is a unique number of the corresponding part given on the drawings, such as R1 and C1. As shown in FIG. 2, several parts having the same part name may be used in one printed circuit board. In this case, even if they have the same part name, their part numbers or unique numbers are all different. The value corresponds to a resistance value (resistance) or a capacitance value (capacitor). The number of pins is the number of pins that a chip or the like has. The placement surface corresponds to one of a top surface and a bottom surface where components can be inserted into a printed circuit board. The rotation angle refers to the angle rotated from the direction of the original library when the corresponding component is placed on the printed circuit board, and is generally in units of 90 °. The reference coordinate is a coordinate (Xo, Yo) of the reference point of the part based on the reference point (0, 0) of the printed circuit board, and corresponds to the position information of the part. However, the part reference point may vary from part to part, such as the center point, pin 1, or other parts.

However, in addition to the component information provided by the CAD processing unit 111, other additional information may be required for the automatic component insertion process of the automatic insertion apparatus. For example, according to the component insertion process of the automatic insertion apparatus, the gripper of the automatic insertion apparatus grasps the chip, moves to the position where the chip is to be inserted, rotates to fit the posture of the component, and then inserts it. Therefore, in order to move the position of the automatic insertion device, the center point coordinates (Centroid X / Y), rather than the reference point coordinates of the corresponding parts, are usually required.

In addition, in the case of a resistor or a wire jumper, the automatic insertion device bends at a spacing equal to the spacing between two through holes into which the resistor or the wire jumper is to be inserted, and then moves to the corresponding position. And rotate to insert. In this case, the automatic insertion device needs information about the pin spacing as well as the coordinates and the rotation angle of the center point of the resistance or the wire jumper.

Therefore, the parts list generated by the parts list generating unit 113 includes information on the center point coordinates (Centroid X / Y) and the pin spacing (Span) required for the operation of the automatic insertion device in addition to the parts information provided by the CAD processing unit 111. In addition, it may have information as shown in FIG. 2.

When the component library of the component is the reference point of the center point of the component, the reference point coordinates provided by the CAD processing unit 111 will be the center point coordinates. Most component libraries, however, do not reference the center point of the part.

In this case, the center point coordinates Xc and Yc are obtained using the coordinates of the reference point and the entire pins of the corresponding parts extracted from the corresponding parts library. However, the coordinates of the pin included in the component library are coordinates based on the reference point of the corresponding part, and are not reference coordinates based on the reference point of the printed circuit board.

Therefore, the coordinates of the center point of a DIP (Dull in Line Package) or some SMD type parts may be obtained as in Equations 1 and 2 below.

Here, Xc and Yc are X coordinates and Y coordinates of the center point based on the reference point (0, 0) of the printed circuit board, and Xo and Yo are coordinates (ie, reference coordinates) of the reference point of the corresponding component. xi and yi are the coordinates of the i th pin centered on the part's reference point. n is the number of pins of the part.

The pin spacing Span can be obtained by calculating the distance between the pins.

In addition to the center point coordinates and the pin spacing, the parts list generating unit 113 may generate any information required by the automatic insertion device and can be generated based on the CAD data and the parts library. To this end, the parts list generator 113 displays a list of information that can be generated to the user through the display unit 103 and generates a parts list including information selected by the user.

≪ Example 1 >

The parts list generating device 330 according to another embodiment of the present invention illustrated in FIG. 3 may be provided separately from the CAD device 310 and provided between the CAD device 310 and the automatic component insertion device 350.

The CAD device 310 includes an input unit 311, a display unit 313, a storage medium 315, and a CAD processing unit 319, and according to a user's control command provided through the input unit 311, for an electronic circuit board. Printed circuit boards (PCBs) can be designed. The input unit 311, the display unit 313, the storage medium 315, and the card processing unit 319 of FIG. 3 are connected to the input unit 101, the display unit 103, the storage medium 105, and the CAD processing unit 111 of FIG. 1. It works the same and can be described the same.

The automatic component insertion apparatus 350 automatically inserts or mounts a component to be soldered or attached to the printed circuit board based on the component list generated by the component list generator 330 based on the CAD data.

The parts list generating device 330 includes a CAD data analysis unit 331 and a data conversion unit 333.

The CAD data analysis unit 331 extracts the part information of the parts included in the drawing for the printed circuit board from the CAD data provided by the CAD processing unit 319 of the CAD device 310.

The data converter 333 generates a parts list by generating information that the CAD data analysis unit 331 cannot extract from the parts list. Here, the information that the CAD data analysis unit 331 cannot extract may correspond to, for example, the center point coordinates or the pin spacing information described above. To this end, the data conversion unit 333 obtains the necessary information by using the above-described method using the parts information extracted by the CAD data analysis unit 331 and the parts library stored in the storage medium 315 of the CAD device 310.

The data conversion unit 333 generates a parts list required for the parts automatic insertion device 350 by using the parts information extracted by the CAD data analysis unit 331 and the information generated by the data conversion unit 331.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

Claims (5)

In the timing error display method in the chip design by the semiconductor chip design arrangement means,
The timing error information provided by the arranging means is parsed to generate a timing between a net, a fan in cell, and a fan out cell of the net. Extracting information on the error-fanout-cell in which the error occurred;
Calculating a straight line distance between the fan in-cell and the error-fan out-cell;
On the basis of the cell information provided by the arrangement means, the positions of the fan-in cell and the error-fan-out cell are displayed on the figure while displaying the chip-shaped figure at a predetermined magnification, and instead of the net. Showing a line connecting the fan in-cell and the error-fan out-cell; And
And visually displaying a timing error by displaying the calculated distance on a line connecting the fan-in cell and the error-fan out-cell.
The method of claim 1,
The extracting step,
Generating the timing error information by extracting, from the arrangement means, information on a fanout-cell having a setup time or hold time that is less than a reference setup time and a reference hold time and a net to which the fanout-cell is connected; The timing error display method on the chip design, characterized in that it further comprises.
The method of claim 1,
In addition to the chip-shaped figure, a location of an element added to remove the timing error by displaying a cell blockage in the chip design according to the magnification based on the cell information provided by the arrangement means. The timing error display method of the chip design, characterized in that it further comprises the step of limiting.
The method of claim 1,
The step of calculating the straight distance,
The output pin of the fan-in cell and the error-fan based on the center coordinates of the cell extracted from the cell information provided by the arrangement means and the position information of the pin extracted from the cell library of the cell. A method for indicating a timing error in a chip design, characterized by obtaining a distance between input pins of an out-cell.
The method of claim 1,
A position of a drive cell connected to an input pin of the fan-in cell and providing a signal to the fan-in cell based on cell information provided by the disposition means, and between the drive-cell and the fan-in cell. Calculating a distance; And
Showing a line connecting the drive-cell and a fan-in-cell, and displaying a distance between the calculated drive-cell and the fan-in-cell on a line connecting the drive-cell and the fan-out-cell. Timing error display method in the chip design, characterized in that.

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