JP3229715B2 - Hole data management method for multilayer printed circuit boards - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of managing hole data having different through-layers in the design of a multilayer printed board, and more particularly to a CAD (computer-aided design) system for designing under a printed board (hereinafter referred to as a board CAD system). The present invention relates to a method of managing hole data of different penetration layers and a method of managing hole data of a multilayer printed board for realizing a drawing output, a list output, and a screen display operation of hole information.

[0002] The board CAD system is a system for supporting an underlaying work of a printed board, which is becoming more and more difficult due to an increase in the density, the number of layers, and the number of parts to be used, which are becoming more and more advanced due to the higher functionality of electronic equipment. It is now widely used. In the multi-layer printed circuit board design, a partially penetrated conduction hole (IVH:
Design and manufacturing technology using Interstitial Via Hole (hereinafter referred to as IVH) has been established, and the design and management of multi-layer printed boards using multiple hole data with different penetrating layers can be performed efficiently on a board CAD system. There is a growing demand for doing so.

[0003]

2. Description of the Related Art Heretofore, an underlay of a multilayer printed board has been produced using holes penetrating through all layers. The design that accompanies this
As a manufacturing technique, the pattern of the hole displayed on the screen is displayed according to the shape and size of the hole. For the drilling data, the shape, size, and processing type (through hole / non-through hole) of the hole are classified and output, for example, in the form of an NC (numerical control) tape. The hole information list was output after classifying the hole shape, size, and machining type. The drawing for manufacturing (hole drawing) is output in the same state as the screen display, that is, the figure display corresponding to the shape and size of the hole.

[0004]

The prior art has the following problems. Creating a multi-layer printed circuit board using many holes penetrating through all layers requires extra area for wiring in layers that do not originally require holes due to holes penetrating through all layers, and also requires a wiring path. As a result, a printed board cannot be manufactured as expected or the manufacturing cost is increased.

[0005] Even if the attribute of the through layer number is given to the hole, the pattern of the hole to be displayed on the screen is displayed as the same pattern regardless of the difference of the through layer if the shape and size of the hole are the same. In order to perform the wiring operation in the multilayer printed circuit board design using the IVH, it is necessary to confirm whether the hole displayed on the screen is an IVH that can be used as a wiring path, and the number of operations for editing the wiring is large and complicated. Had become.

[0006] In the output of drilling data, only classification means based on the shape and the hole diameter are available, so that it is not possible to output drilling data for each penetrating layer, and it is not possible to output the drilling order of the IVH and the bonding order of each layer. The determination is difficult, and the manufacturing procedure is not determined, so that the manufacturing cost and the manufacturing time cannot be estimated.

Since there is only information on holes penetrating through all layers, it is not possible to output a manufacturing list relating to holes for each printed board, ie, a work instruction list, in correspondence with each piece of drilling data.

[0008] Also in the output of the manufacturing drawing (hole diagram), it is desired to display a pattern expressing the position of the layer, but since there is only information of holes penetrating all layers, it is not possible to output a hole diagram for each penetrating layer. . The present invention has been made in view of such a point, and manages the through-layer number by assigning the through-layer number to the attribute value of the hole and centrally manages the hole, and registers a display identifier that gives identification to the display of the hole.・ Manage and streamline design
It is an object of the present invention to provide a method of managing hole data of a multilayer printed circuit board, which enhances the efficiency of work for editing an underprint drawing, manufacturing data, and drawing.

[0009]

FIG. 1 is a diagram illustrating the principle of the present invention for achieving the above object. In FIG. 1, a hole data table means 1 and a display identifier table means 2 use a hole data management method of a multilayer printed board for managing design information of a plurality of hole data having different penetrating layers in creating a block diagram of the multilayer printed board. The hole data table means 1 has a penetrating layer indicating the starting layer number and the ending layer number of the layer through which the IVH penetrates, together with the arrangement coordinates of the hole, the hole diameter, and the hole type input in response to the hole input operation. The numbers are stored in the display identifier table means 2, and the display identifiers corresponding to the through-layer numbers of the holes stored in the hole data table means 1 are stored in the display identifier table means 2. The data is managed for each layer so as to be identified and displayed by the display identifier corresponding to the through layer number.

[0010]

[Function] Input / display of hole data, output of drilling data,
When a hole information list is output, a hole drawing is output, a hole data is displayed on a screen, a hole attribute change instruction is issued, and a copy of another block copy is issued, the hole penetration stored in the hole data table means 1 together with other attribute values is performed. The layer number is used for classification by layer and hole diameter, and the display identifier stored in the display identifier table means 2 corresponding to the penetrating layer number is used for hole drawing and screen display.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a configuration diagram showing one embodiment of the present invention.
In the figure, reference numeral 10 denotes a board design system, which is a component placement command 10a for instructing placement of components to be mounted, and a wiring pattern creation command 10 for instructing creation of a wiring pattern.
b, an input command 10c for a hole penetrating through all layers or a hole for instructing input of IVH, a drilling data output command 10d for outputting drilling data as NC data, and a control unit 10e for these commands.

Reference numeral 11 denotes composition data created in a composition diagram database for each printed board and identified by a printed board composition ID. The composition data 11 includes a component table 11a, a wiring pattern table 11b, a hole data table 11c in which hole arrangement coordinates, a hole diameter, a hole type, and a through layer number are managed, and a design of a display identifier for each through layer number. A display identifier table 11d for managing information is included.

Reference numeral 12 denotes a symbol library for storing shapes of various parts, 13 denotes a printer for outputting various lists or drawings, 14 denotes an external file for storing display identifiers, 15 denotes a display, 16 denotes a keyboard, and 17 denotes a mouse. .

According to the present invention, as shown in FIG. 2, the attribute values of the arranged hole data have a through layer number and are managed as design data in the hole data table 11c. Using the display identifier table 11d in which the display identifiers are associated with each other, the holes can be identified and displayed in correspondence with the through-layer numbers of the holes.

Also, in response to the printed board underlay ID, the punching machine information, and the drilling data output instruction, the printed board underprinted board underlay ID is taken out.
The hole data of the printed board data is taken out, converted into perforated data for each penetrating layer number, and output.

Also, in response to the printed board ID, output layer information, and hole information output instruction, the printed board data of the designated printed board ID is taken out, and the hole data is taken out from the printed board data and classified. Then, a list of hole information, for example, a list in which the number of holes is individually output for each hole diameter for each penetrating layer is output on a screen or a form.

Also, in response to the printed board ID, the hole diameter correspondence identifier information, and the hole drawing output instruction, the printed board data of the designated printed board ID is extracted, and the hole data is extracted from the printed board data. In this case, the holes are classified by through-layer number, and output identification (display identifier) is attached to each hole diameter to output the drawing.

Further, in correspondence with the through-layer number of the hole and the hole information screen display instruction, the hole data having the specified through-layer number of the hole as an attribute value is displayed on the screen. Also, in response to the hole attribute value change instruction and the attribute value change input, hole data (display identifier) having a through layer number corresponding to the change value as an attribute value is displayed on the screen.

Further, when copying a part or the whole of an existing underprinting board drawing, it is registered in the display identifier table of the diverted source in accordance with the specified underprinting board ID and the instruction of the copy range. The display identification data is compared with the identification data registered in the display identifier table of the board of the destination board, and the unregistered identification data is merged with the display identifier table 11d of the destination to copy the layout diagram database. And display it on the screen.

As described above, the hole data table 11c has the through layer numbers of the holes, and the display identifier information of the holes for each through layer is managed by the display identifier table 11d. It is possible to increase the efficiency of the design of the printed board, and also to increase the efficiency of the work of editing the underprint drawing, manufacturing data and drawing.

FIG. 3 is a diagram for explaining the operation concept of the present invention. [Step 1] [Input / display of hole data S31] In the lower part of the printed board, an arrangement position of the holes is indicated together with the through-layer number. Substrate C
An arbitrary shape graphic symbol is input by the AD system. Using the input through-layer number of the hole as a key, the display identifier is extracted from the display identifier table 11d, and is displayed on the screen together with the figure shape of the hole. [Management of Hole Data and Display Identifier S32] The hole data and display identifier data input in S31 are managed as follows. The display identifier data is stored in the display identifier table 11d together with the combination of the penetrating layers. In the hole data, the arrangement coordinates, the hole diameter, the hole type, and the through layer number are all stored in the hole data table 11c.

The display identifier for each combination of the start layer number and the end layer number of the penetrating layer may be determined by the user during operation. All display identifiers are imported at the time of designing the composition or from an external file as necessary.

[Step 2] [Extraction of Composition Information S33] In the substrate CAD system, composition information is sequentially extracted from the created composition diagram. Here, hole data is extracted. [Verification of Attribute Value of Extracted Composition Information S34] In the substrate CAD system, graphic information having a specified numerical value as an attribute value is searched and extracted using an arbitrary numerical value as a key. Here, first, it waits for an instruction of the search target data and an input of an arbitrary numerical value from the user. Next, hole data having this numerical value as an attribute value is extracted from the composition data. Then, it is determined whether or not the hole data sequentially taken out in S33 has this attribute value. If the hole data has the specified value in the attribute value, this data is passed to S35 shown below. [Notification of User of Composition Information to User S35] The data obtained in S34 is notified to the user. The notification method includes displaying on a display, writing to an external file, providing an interface routine, and the like.

Here, [Step 1] and [Step 2] need not be performed at the same time. Further, once the operation of [Step 1] is performed, the operation of [Step 2] can be performed any number of times by changing and inputting a designated value from the outside.

FIG. 4 is an explanatory view of a concrete example of the present invention. In the center of the figure, the composition data 11 relating to one multilayer printed board identified by the composition ID of the printing board stored in the composition diagram database is shown. The composition data 11 performs unified management of the hole data and the display identifier, and includes the component table 11a and the wiring pattern table 11a.
b, hole data table 11c, display identifier table 11
In addition to d, various tables including the external dimensions of the printed board and the like are included. The hole data table 11c manages the arrangement coordinates of the holes, the hole diameters, the hole type for designating a through hole or a non-through hole, and a through layer number. The arrangement coordinates of the holes are input as XY coordinate values, and the penetrating layer number is input as "1: 2" if the holes penetrate between the first layer and the second layer of the print pattern. In the display identifier table 11d, each penetrating layer number and the picture information of the display identifier are managed in association with each other. In the illustrated example, for example, the picture of the display identifier corresponding to the penetrating layer number "1: 2" is a double circle. It is said that. This display identifier is identified and displayed at the time of screen display on a display or drawing output by a printer.

On the display 15, as an example, the first window shows the first to fourth layers of the artwork, and the second window displays a specific range of the artwork which is input and displayed in the first window. In particular, the drawing of the second layer is shown. Accordingly, in the second window, holes in other layers (indicated by broken circles in the figure) are not displayed. On the screen of this draft drawing, input of hole and display identifier, display of display identifier by condition specification, display of hole identification corresponding to attribute value in response to hole attribute value change instruction, and other draft drawings The display identifier is displayed at the time of merging the identification data at the time of copying the data.

In FIG. 4, various outputs are further made based on the composition data 11. That is, manufacturing data relating to the drilling process is output in the form of an NC tape or a floppy disk, a list for each penetrating layer is output by a printer, or a drawing or a drawing for each penetrating layer number is output by a printer or plotter. Composite output is performed.

FIG. 5 is a diagram showing an example of a hole data input / display procedure according to the present invention. In the figure, as the operation of the operator, there are the layout of components, the input of wiring patterns, the creation of a large area, the editing of silk, etc. as the operation of the block diagram. When an input command of a hole is input or generated (S51), the system Is started. The system performs a process of extracting a hole symbol from a symbol library, a process of extracting a display identifier from an external file, and a process of displaying a hole (S52).

FIG. 6 is a diagram showing an example of a drilling data output procedure according to the present invention. In the figure, an operator inputs a composition ID, instructs drilling machine information, and outputs drilling data (S61).
The composition diagram of the inputted composition ID is searched from the composition diagram database (S62), and classified by the combination of the penetration layer number which is the attribute value of the hole data, and further classified by the hole diameter (S6).
3) Then, based on the processing machine information in the external file, the NC conversion is performed for each combination of the penetration layer numbers (S).
64).

FIG. 7 is a diagram showing an example of a hole data list output procedure according to the present invention. In the figure, when the operator issues an input of the composition ID, an output layer information and an output instruction of the production list (S71), the system retrieves the composition diagram of the inputted composition ID from the composition diagram database (S72). ), Classification is made for each combination of penetration layer numbers which are attribute values of hole data, and further classified for each hole diameter, and the number of holes is counted (S7).
3) A process of outputting to a list for each combination of the through layer number and the hole diameter (S74) is performed.

FIG. 8 is a diagram showing an example of a drawing output procedure according to the present invention. In the figure, when the operator inputs the composition ID, the hole diameter correspondence identifier information, and the drawing output instruction (S8).
1) The system retrieves the composition diagram of the inputted composition ID from the composition diagram database (S82), classifies it by the combination of the penetration layer number which is the attribute value of the hole data, and further classifies by the hole diameter ( S83) Then, a symbol corresponding to the hole diameter is taken out from, for example, a drawing output hole diameter symbol stored in the symbol library and converted, and a drawing is output for each combination of through-layer numbers (S84).

FIG. 9 is a diagram showing an example of a hole display procedure according to the present invention. In the figure, when the operator inputs a composition ID (S91), the system retrieves the designated composition diagram from the composition ID and displays the screen (S92). The operator specifies the display layer and the display element (S9
3), the system displays the designated display layer and the display elements included in the display layer (S94). When the operator specifies the through layer number (S95), the system displays a hole having the specified through layer number with reference to the symbol library and the display identifier (S96).

FIG. 10 is a diagram showing an example of a hole display procedure corresponding to the hole attribute value change instruction of the present invention. In the figure, when the operator inputs a composition ID (S101), the system retrieves the designated composition diagram from the composition ID and displays the screen (S102). When the operator changes the attribute value of a hole and designates a hole to be changed (S103), the system performs a process of displaying the current attribute value of the designated hole (S104). When the operator inputs an attribute value change (S105), the system performs a process of displaying the display identifier of the hole having the input penetrating layer number (S10).
6).

FIG. 11 is a diagram showing an example of a procedure for integrating management data corresponding to a copy instruction for another version of the present invention. In the figure, when the operator inputs a composition ID (S11)
1), the system retrieves the instructed draft indicated by the inlay ID, and displays the screen (S112). When the operator instructs the copying of the other composition and the ID of the composition to be copied (S113), the system displays the designated composition in a separate window (S114). When the operator designates a range to be copied and a position to be copied (S115), the system displays a copy drawing at the copy destination and performs processing for integrating the management data of the copy destination and the management data of the copy source (S1).
16). In other words, the graphic symbols and tables not used in the copy plan of the copy destination are merged. In the copied drawing, graphic data and display identifier data of the block diagram specified from the other block diagram database are cut out and displayed according to the designated range. Then, the merged data is integrated with the composition data.

FIG. 12 is a diagram showing an example of a hardware configuration of a workstation for implementing the present invention. In the figure, a processor 20 controls the entire workstation in accordance with a system program stored in a read-only memory 21. The main memory 22 stores data such as data being drawn and edited, in addition to the application program of the board CAD system loaded from another recording medium.

The graphic control circuit 23 converts the board design drawing data or the like generated in the main memory 22 into a display signal and sends it to the display device 24. The display device 24 displays graphic data, display identifier data, and the like based on the received display signal.

The mouse 25 moves the cursor displayed on the screen of the display device 24, and clicks a button to indicate a specific hole displayed on the screen or to input a hole on the screen. Or instruct the selection of various menus. The keyboard 26 is a composition ID,
It is used to input data such as the coordinates of the hole arrangement, the hole diameter, and the through layer number. The tablet 27 is used for inputting coordinates when creating a block diagram.

The hard disk drive 28 stores files such as an application program, an underprint database, and a symbol library containing the shapes of parts. The floppy disk device 29 inputs data such as an underprint drawing stored on the floppy disk 29a, or converts graphic data such as a created underprint drawing or NC-converted manufacturing data into the floppy disk 29a.
This is an external storage device that can be stored in a.

Further, the data of the composition draft created and edited is as follows:
The data can be output in the form of a drawing or a list by the printer 30 or the plotter 31. The manufacturing data converted to the NC data can be output to the paper tape puncher 32. These components are interconnected via an interface circuit (not shown) and a bus 33.

[0040]

According to the present invention, the following effects can be obtained. That is, since the display identifier is attached to the hole for each through layer number, the through layer can be easily determined, and the design work of the multilayer printed board can be performed efficiently.

Each of the holes has through-hole number information of the hole,
Since the information for display identification is centrally managed in the display identifier table, compression of the composition database and improvement of the display response can be achieved.

Further, it is possible to easily perform the display operation for each penetrating layer of the hole. Further, it is possible to efficiently output the drilling data and the drawing output corresponding to the penetrating layer of the hole.

Further, since a multi-layer printed board using an IVH can be easily designed, a large number of holes for securing a wiring path can be used.
Multilayering and the accompanying increase in manufacturing cost can be suppressed. In particular, retrieve hole data from printed circuit board data
Then, it is converted to drilling data for each penetration layer number and
Output the drilling data for machining.
Can be created efficiently.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a configuration diagram of one embodiment of the present invention.

FIG. 3 is a diagram illustrating an operation concept of the present invention.

FIG. 4 is an explanatory view of a specific example of the present invention.

FIG. 5 is a diagram showing an example of a hole data input / display procedure according to the present invention.

FIG. 6 is a diagram showing an example of a drilling data output procedure according to the present invention.

FIG. 7 is a diagram showing an example of a hole data list output procedure according to the present invention.

FIG. 8 is a diagram showing an example of a drawing output procedure of the present invention.

FIG. 9 is a diagram showing an example of a hole display procedure according to the present invention.

FIG. 10 is a diagram showing an example of a hole display procedure corresponding to a change in the attribute value of a hole according to the present invention.

FIG. 11 is a diagram showing an example of a procedure for integrating management data corresponding to another version copy drawing instruction of the present invention.

FIG. 12 is a diagram illustrating an example of a hardware configuration of a workstation for implementing the present invention.

[Explanation of symbols]

 1 hole data table means 2 display identifier table means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-222070 (JP, A) JP-A-2-191068 (JP, A) JP-A-6-243200 (JP, A) 25271 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) G06F 17/50

Claims (6)

(57) [Claims] A hole data management method for a multilayer printed board for managing design information of a plurality of hole data having different penetrating layers in creating an underlaying drawing of the multilayer printed board. Placement coordinates, hole diameter,
A penetration layer number indicating a start layer number and an end layer number of a layer penetrating together with the hole type is stored in the hole data table means (1), and the penetration layer number of the hole stored in the hole data table means (1) Is stored in the display identifier table means (2), and the hole data input to the composition of the multilayer printed board is identified and displayed by the display identifier corresponding to the through-layer number.
Along with the board ID, drilling machine information and drilling data
In accordance with the data output instruction, the designated printing plate
After taking out the printed board data of D,
Extract the hole data from the
A hole data management method for a multilayer printed circuit board, wherein hole hole data is created and output after conversion into hole data. 2. A printing plate copy ID, output layer information and
In accordance with the hole information output instruction, the specified printing plate
Take out the printed board data of ID and
Takes out hole data from data, classifies it, and lists hole information
Output to screen or form
2. A method for managing hole data of a multilayer printed circuit board according to claim 1.
Law. 3. An underprint ID and a hole diameter corresponding identifier information of a printed board.
Information and hole drawing output instructions,
Take out the printed board data of
The hole data is extracted from the component plate data and
Classify and add output identification for each hole diameter and output to drawing
2. The multilayer pudding according to claim 1, wherein:
Hole plate data management method. 4. A through-layer number of a hole and a finger for displaying a hole information screen.
The penetration layer number of the specified hole is set as the attribute value
The feature is that the hole data is displayed on the screen.
2. The method for managing hole data of a multilayer printed circuit board according to claim 1.
Law. 5. An instruction to change an attribute value of a hole and a change of an attribute value.
In response to the input, the attribute value through layer number corresponding to the change value
The display identifier of the hole that has
The hole data of the multilayer printed board according to claim 1, wherein
Data management method. 6. A part or a part of an existing printed board plan drawing.
Is the specified ID of the printed board when copying all
And the display identifier of the diversion source corresponding to the instruction of the copy range
Display identification data registered in table means and import
Registered in the display identifier table under the printed board
The data is compared with the identification data specified in the
Merging unregistered identification data into the display identifier table means
And store it in the composition database and display it on the screen.
2. The multilayer preform according to claim 1, wherein:
Hole plate data management method.