JPH10171856A - Design supporting device for semiconductor integrated circuit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an edition/display function capable of efficiently executing design and a function for checking a design control conduction by managing the positional relation of terminal connection by 1st and 2nd integrated circuit (IC) boards and displaying a floor plan drawing or a layout drawing for each IC substrate on a display device by a control device. SOLUTION: When the display of a floor plan drawing is specified from an input device 101, a control circuit 108 specifies the identification (ID) name of an IC circuit board to a display switching device 107. The control device 108 displays the floor plan drawing of the IC board on a display device 105. When the specification for the display of the IC board is inputted, the device 108 acquires the stored contents of a 2nd sub-storage device 104 and displays the floor plan drawing of the IC circuit board. When the position of the floor plan drawing during displaying is changed on order to determine the superposed position of two IC boards, a relating device 106 is informed of the change and the value of positioning information is rewritten to a vector value expressing the changed position of a board reference point and a board drawing is displayed on the superposed position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting the design of a semiconductor integrated circuit, and more particularly to a design support device used for floor plan design and layout design.

[0002]

2. Description of the Related Art First, a technique related to a multi-chip module which is a semiconductor integrated circuit to which the present invention is applied will be described.

[0003] In addition to a design technique aiming at high density and high performance by the configuration of a single LSI, there has been proposed a prior art which realizes high density and high performance by an LSI semiconductor circuit mounting method. In particular, semiconductor manufacturing technology called multi-chip modules has features that are superior to conventional printed circuit boards in terms of small packaging, lighter equipment, and improved circuit characteristics, and is intended to improve circuit performance and packaging density. ing. A brief description of the two mainstream realization methods will now be given.

(1) MCM-D (deposit method): A thin-film substrate is continuously deposited, and finally, a semiconductor LSI chip is assembled and tested to be completed.

(2) MCM-L (stacking method): A thin film substrate is deposited in parallel, and finally a semiconductor LSI
Chips are assembled, and the substrates are overlaid to complete. However, the above-mentioned MCM technology has the following problems.

(1) The substrate manufacturing cost of the MCM increases. (2) Due to the large scale of the circuit, the MCM substrate manufacturing period,
The manufacturing period of the special-purpose LSI is prolonged.

In recent years, in order to further reduce costs, fine processing technology for mounting on printed circuit boards has been advanced, and MCM-
As a mounting method that further develops L, a mounting method COC (chip-on-chip) method in which ball-shaped solder or gold terminals are arranged on pads of a plurality of LSI chips and brought into surface contact with each other has been proposed. This is because the above-mentioned substrate for MCM is L
Since it is performed on the SI, it helps to reduce the cost.

Next, a design support apparatus for interactively performing a floor plan design and a layout design of a semiconductor integrated circuit will be described. FIG. 22 shows an example of a hardware configuration of a conventional design support apparatus. Information such as shape information and function information of each function block constituting the semiconductor integrated circuit and connection information between the function blocks are stored in the storage device 2202, and the control device 2204 displays the display device 2203.
, A floor plan diagram, a layout diagram, and the like are displayed. The designer determines the arrangement position and shape of the functional blocks, the wiring route between the functional blocks, and the like by working from the input device 2201 while looking at the display screen.

[0009] Using this conventional design support apparatus, the CO
A method of designing a multi-chip module composed of two C-type LSI chips is to design each of the semiconductor integrated circuit boards constituting the chip independently and then superimpose them. To match, the designer repeats the design of each board a plurality of times by trial and error. FIG. 23 shows an example of the flow of this design.

In step 2301, a first integrated circuit board constituting a multi-chip module is designed, and in step 2302, it is confirmed whether the design result conforms to design constraints such as area, speed, and power consumption. If not, the process returns to step 2301 again. Step 230
In step 3304, a second integrated circuit board is designed. In step 2304, it is checked whether the design result conforms to the design constraint conditions. If not, in step 2305, the first completed design is completed. The necessity of rearranging the functional blocks of the multi-chip module including the change of the configuration of the design circuit board is examined. If this change is necessary, the design is started again from 2301. If it is sufficient to correct only the second integrated circuit board, the process is repeated from step 2303. After the design of both substrates is completed, Step 2
In step 306, alignment information for bonding these is generated. In step 2307, it is determined whether the alignment satisfies design constraints such as wiring delay between the substrates. Step 2306 is re-performed according to the judgment of
In the judgment of 09, the processing is restarted from step 2303 or from step 2301.

As described above, in designing a multi-chip module, it is necessary to proceed with the design while considering two related integrated circuit boards with each other, so that frequent re-design may occur in some cases. In order to efficiently carry out this, a design support device that can immediately reflect the design details of the other integrated circuit board when designing it is indispensable.

In this example, an example has been described in which the positioning for bonding the designed circuit boards to each other is performed after each design. However, for example, this positioning is determined first, and thereafter, each designed circuit board is designed. Even if the function blocks are moved according to the result of this design, the board size changes, and the alignment is started again. As described above, frequent re-designing may occur regardless of the alignment or the individual substrate design.

Several design support devices for improving the efficiency of designing a device composed of a plurality of circuit boards have been proposed in the field of printed circuit board design. For example, the display device 220
As a method of superimposing two design screens on the screen 3, a method of superimposing and displaying a screen of a tablet and a screen of a drawing mounted thereon on the display device 2203 (Japanese Patent Laid-Open No.
JP-A-319775) and a method of transparently displaying one window when two screens (windows) on the display device 2203 are overlapped (Japanese Patent Laid-Open No. 4-258959).
And the like have been proposed. As a method of displaying and designing a plurality of screens on the display device 2203, a method of simultaneously displaying a printed circuit board diagram and a circuit diagram on the display device 2203 in association with each other (Japanese Patent Application Laid-Open No. 4-175879) is proposed. Have been. As a method of evaluating design constraints, a method of checking design rules such as wiring in a circuit board (Japanese Patent Application Laid-Open Nos. 3-212770 and 5-205).
No. 28211) and a method of displaying a circuit board on the display device 2203 by changing the color of the wiring that violates the restriction based on the restriction on the number of wirings or the like (Japanese Patent Laid-Open No. 5-736).
No. 33), and the like.

However, even if such a conventional design support apparatus is used, it cannot be effectively applied to the design of a COC type multi-chip module which requires simultaneous design of a plurality of integrated circuit boards having a complicated configuration. For example, a method of simply superimposing two windows as disclosed in Japanese Patent Application Laid-Open No. 4-258959 is rather visually complicated because all parts are displayed transparently, and the design efficiency cannot be improved. Further, there has not been proposed any device capable of performing an editing operation while associating design data of the same type with each other. Further, there is no proposal for an apparatus for checking design constraints between substrates characteristic of a multichip module. For this reason, even if the above-mentioned design support device is utilized, it is difficult to increase the efficiency of the design of the multi-chip module.

[0015]

Most of the conventional design support apparatuses can be applied only to the design of a single integrated circuit board or the design of a circuit board having a very simple structure. It is difficult to apply it to the design of the COC type multi-chip module in which complicated integrated circuits having a large number of substrate components are superposed. For example, according to the conventional technology, an editing function and a display function for efficiently designing two integrated circuit boards constituting a COC-type multi-chip module cannot be realized at the same time. Neither can design constraints be checked.

The present invention solves the above problem by providing a C
Provide design support equipment with editing and display functions for efficiently designing floor plans and layout designs for OC-type multi-chip modules, and for checking characteristic design constraints of multi-chip modules. Is what you do.

[0017]

According to a first aspect of the present invention, there is provided an integrated circuit comprising two integrated circuit boards, wherein the integrated circuit has a structure which can be connected to other integrated circuits by terminals. Floor plan and layout of a circuit in which two integrated circuit boards of a first integrated circuit board and a second integrated circuit board also having a structure connectable to another integrated circuit are connected to form one integrated circuit. A design support apparatus having at least an input device, a storage device, a display device, and a control device for determining a position relationship between terminals connected between the first integrated circuit board and the second integrated circuit board. Wherein the control device causes the display device to display a floor plan diagram or a layout diagram of the integrated circuit board in accordance with a designation from the input device while managing the integrated circuit. To provide a design support apparatus.

According to a second aspect of the present invention, in the semiconductor integrated circuit design assisting apparatus of the first aspect, the first integrated circuit board and the second integrated circuit board are connected between the first integrated circuit board and the second integrated circuit board.
Said input device capable of selecting one or more functional blocks from a functional block group constituting one integrated circuit board;
A control device for moving the selected functional block onto the other integrated circuit board while managing the arrangement position of the functional block, and a design support device for a semiconductor integrated circuit.

According to a third aspect of the present invention, in the semiconductor integrated circuit design support apparatus according to the first aspect, the first integrated circuit board and the second integrated circuit board are connected between the first integrated circuit board and the second integrated circuit board.
One side of an arbitrary functional block on one integrated circuit board;
The input device capable of selecting one side of an arbitrary functional block on the other integrated circuit board; and the function block such that the X coordinate value or the Y coordinate value of the selected functional block matches between the sides. A control device for moving the integrated device on an integrated circuit board on which the device is mounted, and a design support device for a semiconductor integrated circuit.

According to the fourth aspect of the present invention, there is provided an integrated circuit comprising two integrated circuit boards, the first integrated circuit board having a structure connectable to another integrated circuit and a terminal, and another integrated circuit. A design support apparatus for determining a floor plan and a layout of a circuit in which two integrated circuit boards of a second integrated circuit board having a structure connectable to a circuit and a terminal are connected to form a single integrated circuit, and a keyboard. An input device such as a mouse and a mouse, a storage device for storing design data of the integrated circuit and substrate data of each of the integrated circuit boards, and a display device such as a CRT, for connecting the terminals between the two integrated circuit boards. An associating device that assigns a logical positional relationship between the display device and a display switching device that switches the board data obtained in accordance with a designation from the input device.
A controller for controlling the execution of the association, based on the contents of the storage device that stores a positional relationship between the first integrated circuit board and the second integrated circuit board for terminal connection; Manages coordinate positions sequentially corresponding to the change of the positional relationship, and the display switching device selects necessary data in accordance with designation from the input device, thereby providing a floor plan diagram of the integrated circuit board. And a layout diagram for displaying a layout diagram on the display device based on the positional relationship.

According to a fifth aspect of the present invention, there is provided an integrated circuit comprising two integrated circuit boards, wherein the first integrated circuit board has a structure connectable to terminals of another integrated circuit, and the other integrated circuit board has the same structure. At least an input device and a memory for determining a floor plan and a layout of a circuit in which two integrated circuit boards of a second integrated circuit board having a structure connectable to a circuit are integrated into a single integrated circuit. A design support device comprising a device, a display device, and a control device, wherein the display device has at least two display screens, and wherein the control device includes the first integrated circuit board and the second integrated circuit board. A design drawing of a floor plan diagram or a layout diagram of each of the integrated circuit boards is simultaneously displayed on separate display screens on the display device, while managing a positional relationship of connecting the terminals with each other. Provided is a design support device for a body integrated circuit.

According to a sixth aspect of the present invention, in the semiconductor integrated circuit design assisting apparatus of the fifth aspect, the design drawings of the first integrated circuit board and the second integrated circuit board correspond to the display device. When the design drawing displayed on one display screen is enlarged or reduced in the state displayed on the first display screen and the second display screen, the design displayed on the other display screen A design support apparatus for a semiconductor integrated circuit, which has a function of enlarging or reducing a display in conjunction with a drawing.

According to a seventh aspect of the present invention, in the semiconductor integrated circuit design support apparatus of the fifth aspect, the first integrated circuit board and the second integrated circuit board displayed on the display screen. Between the design drawing and the input device capable of selecting one or more function blocks from a group of function blocks constituting one integrated circuit board via the design drawing, and the selected function block, A control device for moving the other integrated circuit board onto a design drawing while managing the arrangement position of the other integrated circuit board.

In the invention according to claim 8, in the semiconductor integrated circuit design support apparatus according to claim 5, the first integrated circuit board and the second integrated circuit board displayed on the display screen. Between the design drawing and the input device that can select one side of an arbitrary functional block on one integrated circuit board and one side of an arbitrary functional block on the other integrated circuit board through the design drawing The control device for moving the selected function block on an integrated circuit board on which the function block is mounted so that the X coordinate value or the Y coordinate value of the sides of the selected function block match. A design support device for a semiconductor integrated circuit is provided.

According to the ninth aspect of the present invention, there is provided an integrated circuit comprising two integrated circuit boards, the first integrated circuit board having a structure connectable to terminals of another integrated circuit, and the other integrated circuit. A design support apparatus for determining a floor plan and a layout of a circuit in which two integrated circuit boards of a second integrated circuit board having a structure connectable to a circuit and a terminal are connected to form a single integrated circuit, and a keyboard. An input device such as a mouse or a mouse, a storage device for storing the design data of the integrated circuit and the substrate data of each integrated circuit board, and a multi-screen capable of displaying a multi-screen having a common coordinate system with others on a CRT or the like. A screen display device, an associating device for establishing a logical relationship between the two integrated circuit substrates, and an integrated circuit based on a coordinate system preset for each display screen on the multi-screen display device. A coordinate management device that manages a display position of a board design screen; and a control device that controls the execution of the coordinate management device. The display device has at least two display screens, and the control device includes the first integrated circuit. The substrate and the second
While the coordinate management device manages the positional relationship of the terminal connection with the integrated circuit board, the design plan of the floor plan diagram and the layout diagram of each integrated circuit board is simultaneously displayed on separate display screens on the multi-screen display device. Provided is a semiconductor integrated circuit design support device characterized by displaying.

[0026] According to the tenth aspect of the present invention, there is provided an integrated circuit including two integrated circuit boards, wherein the first integrated circuit board has a structure connectable to another integrated circuit and a terminal, and the other integrated circuit includes At least an input device and a storage device are provided for connecting two integrated circuit boards of a second integrated circuit board having a terminal connectable structure and determining a floor plan and a layout of a circuit to be one integrated circuit. A design support device comprising a display device and a control device, wherein the first
One of the integrated circuits displayed on the display device when an auxiliary line that visually indicates the connection relationship between the integrated circuit substrate and the functional blocks constituting the second integrated circuit substrate is displayed on the display device A function block in the other integrated circuit board having a logically direct connection relationship with a specified function block in the board is searched for, and the one integrated circuit is managed while managing the shape and arrangement position of the searched function block. There is provided a semiconductor integrated circuit design support device characterized by having a function of displaying on a substrate and displaying the auxiliary line between the displayed function block and the designated function block.

According to the eleventh aspect of the present invention, in the semiconductor integrated circuit design supporting apparatus of the tenth aspect, the function blocks on the first integrated circuit board and the functions of the second integrated circuit board are When displaying the auxiliary line representing the connection relationship between blocks on the display device, the display method of the auxiliary line is different from that of the auxiliary line representing the connection relationship between functional blocks in the same integrated circuit board. And providing a design support device for a semiconductor integrated circuit, which has a function of displaying the information.

According to a twelfth aspect of the present invention, in the semiconductor integrated circuit design support apparatus of the eleventh aspect, an auxiliary line representing a connection relationship between functional blocks on the different integrated circuit boards is provided with the same auxiliary line. A design support apparatus for a semiconductor integrated circuit, characterized in that a color is displayed differently from an auxiliary line indicating a connection relationship between functional blocks in an integrated circuit substrate.

According to a thirteenth aspect of the present invention, in the semiconductor integrated circuit design support device of the eleventh aspect, the auxiliary line indicating the connection relationship between the functional blocks on the different integrated circuit boards is the same as the auxiliary line. Provided is a design support apparatus for a semiconductor integrated circuit, characterized in that the thickness and the type of the auxiliary line indicating the connection relationship between the functional blocks in the integrated circuit board are changed and displayed.

Further, in the invention according to claim 14, an integrated circuit composed of two integrated circuit substrates, the first integrated circuit substrate having a structure connectable to terminals of another integrated circuit, and another integrated circuit. A design support apparatus for determining a floor plan and a layout of a circuit in which two integrated circuit boards of a second integrated circuit board having a structure connectable to a circuit and a terminal are connected to form a single integrated circuit, and a keyboard. An input device such as a mouse or a mouse, a storage device for storing design data of the integrated circuit and substrate data of each integrated circuit board, a display device such as a CRT, and a direct connection relationship with a designated functional block. A relational block extracting device for acquiring a functional block group, a coordinate managing device for managing display positions of the two integrated circuit boards on the display device, and a relational block extracting device. In the obtained functional block group, information of a functional block on another integrated circuit board that does not exist on the integrated circuit board on which the specified functional block exists is obtained, and the display device is displayed based on the information. Between the specified function block and the function block group present on the integrated circuit board in which the specified function block is present, among the function block groups obtained by the related block extraction device, A rat nest display control device for generating and displaying rats nest in the, and a functional block group obtained by the related block extracting device,
An inter-board ratsnest display control device that generates and displays a ratsnest between the designated function block and a function block group on another integrated circuit board that does not exist on the integrated circuit board on which the specified function block is present, and executes these. And a control device for controlling, and displays a rats nest as an auxiliary line that visually indicates on a display device a connection relationship between functional blocks constituting the first integrated circuit board and the second integrated circuit board. The related block extracting device searches for a functional block in the other integrated circuit board that has a logically direct connection relationship with a designated functional block in one integrated circuit board displayed on the display device, While the coordinate management device manages the shape and arrangement position of the found functional block, the other substrate block display control device controls the one integration circuit. A rat nest display control device between boards is displayed between the displayed function block and the designated function block, and a rats nest is displayed between the displayed function block and the designated function block, and the function block in the one integrated circuit board and the designated function block are displayed. The present invention provides a design support apparatus for a semiconductor integrated circuit, wherein the rat nest display control device in the substrate displays a rat nest between functional blocks.

Further, in the invention according to claim 15, an integrated circuit comprising two integrated circuit substrates, wherein the first integrated circuit substrate has a structure connectable to terminals of another integrated circuit, At least a display device, an input device, and a memory are provided to connect two integrated circuit boards of a second integrated circuit board having a terminal connectable structure and determine a floor plan and a layout of a circuit to be one integrated circuit. A design support device comprising a device and a control device, wherein when there is inter-substrate wiring between the first integrated circuit substrate and the second integrated circuit substrate, Provided is a design support apparatus for a semiconductor integrated circuit, which has a function of visually and clearly displaying a wiring route of an inter-substrate wiring and a wiring terminal on a substrate.

According to a sixteenth aspect of the present invention, in the semiconductor integrated circuit design support apparatus according to the fifteenth aspect, the inter-substrate wiring and the wiring only within the substrate of each of the integrated circuit substrates are provided on the integrated circuit substrate. Means for displaying the inter-substrate wiring and the intra-substrate wiring together, means for displaying only the inter-substrate wiring, and means for displaying only the intra-substrate wiring when the in-substrate wiring is completed together. And a method for displaying wiring of the integrated circuit board diagram is changed in accordance with designation of the display means from the input device.

According to the seventeenth aspect of the present invention, there is provided an integrated circuit comprising two integrated circuit boards, the first integrated circuit board having a structure connectable to terminals of another integrated circuit, and another integrated circuit. A design support apparatus for determining a floor plan and a layout of a circuit in which two integrated circuit boards of a second integrated circuit board having a structure connectable to a circuit and a terminal are connected to form a single integrated circuit, and a keyboard. An input device such as a mouse and a mouse, a storage device for storing design data of the integrated circuit and substrate data of each integrated circuit board, a display device such as a CRT, and a functional block between the two integrated circuit boards. A board-to-board wiring extracting device for washing out wires connected through the terminals of the terminals, and a wire for displaying the board-to-board wiring obtained by the board-to-board wiring extracting device on each of the integrated circuit board diagrams Control device, and a control device for controlling the execution thereof, wherein the inter-board wiring extraction device performs all inter-board wiring between the first integrated circuit board and the second integrated circuit board. The wiring display control device visually identifies and displays the wiring path of the found inter-board wiring and the wiring terminal on the board on each integrated circuit board diagram. A design support apparatus for a semiconductor integrated circuit is provided.

[0034] In the invention according to claim 18, an integrated circuit comprising two integrated circuit boards, wherein the first integrated circuit board has a structure connectable to another integrated circuit and a terminal, and the integrated circuit is also connected to another integrated circuit. At least a display device, an input device, and a memory are provided to connect two integrated circuit boards of a second integrated circuit board having a terminal connectable structure and determine a floor plan and a layout of a circuit to be one integrated circuit. A design support device comprising a device and a control device, wherein a configuration and a shape of the integrated circuit board are changed by moving function blocks between the first integrated circuit board and the second integrated circuit board. When changed, the number of inter-substrate wiring determined by the assignment of functional blocks to each of the integrated circuit substrates is compared with the number of substrate terminals determined by the size of the integrated circuit substrate, and design constraints are reduced. Providing design support apparatus for a semiconductor integrated circuit, characterized in that it comprises means for performing valence.

According to a nineteenth aspect of the present invention, in the semiconductor integrated circuit design support apparatus of the eighteenth aspect, a result of comparing the number of the inter-substrate wirings with the number of the substrate terminals is displayed on the display device. The present invention provides a semiconductor integrated circuit design support device having means.

Further, in the invention according to claim 20, an integrated circuit composed of two integrated circuit substrates, the first integrated circuit substrate having a structure connectable to terminals of another integrated circuit, and another integrated circuit. A design support apparatus for determining a floor plan and a layout of a circuit in which two integrated circuit boards of a second integrated circuit board having a structure connectable to a circuit and a terminal are connected to form a single integrated circuit, and a keyboard. An input device such as a mouse or a mouse, a storage device for storing design data of the integrated circuit and substrate data of each integrated circuit board, a display device such as a CRT, and a design constraint between the two integrated circuit boards are evaluated. A constraint evaluation device; and a control device for controlling the execution of the constraint evaluation device. The integration is performed by moving a functional block between the first integrated circuit board and the second integrated circuit board. When the configuration or the shape of the circuit board is changed, the control device instructs the constraint evaluation device to determine the number of inter-board wirings determined by the assignment of the functional blocks to each of the integrated circuit boards, and the size of the integrated circuit board. A design support apparatus for a semiconductor integrated circuit, characterized in that the design support apparatus has means for evaluating design constraints by calculating the determined number of substrate terminals and comparing the calculation results.

[0037]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) In a first embodiment of the present invention, the inventions according to claims 1, 2, 3, and 4 will be described.

FIG. 1 is a hardware configuration diagram according to the first embodiment of the present invention. In FIG. 1, 101 is an input device such as a keyboard or a mouse, 102 is a main storage device for storing connection information of a multi-chip module circuit (MCM circuit), and 103 and 104 are sub-devices for storing board information for each integrated circuit board. A storage device, 105 is a display device such as a CRT, 106 is an associating device for establishing a logical relationship between two integrated circuit boards, and 107 is one of the first secondary storage device 103 and the second secondary storage device 104. A display switching device 108 for acquiring the stored contents is a control device for controlling the display of the integrated circuit board on the display device 105, acquiring the display information, and controlling the operation of each of the constituent devices.

As shown in FIG. 2, a semiconductor integrated circuit device (MCM circuit) 205 which is a target of the design
This is achieved by connecting two integrated circuit boards to terminals. In FIG. 2, reference numeral 201 denotes a first integrated circuit substrate, and 202 denotes a second integrated circuit substrate, each having a pad structure for face-to-face connection. 203 is 201 and 202
And 204 are external terminals for connection to the outside. The above is packaged and implemented as the device 205.

FIG. 3 shows an example of a design flow of each integrated circuit board of a semiconductor integrated circuit device (MCM circuit) which is a target of the design support apparatus of the present invention. In FIG. 3, reference numeral 301 denotes a function design, which determines a function of the semiconductor integrated circuit device. A semiconductor integrated circuit device to which the present invention is applied comprises one or more functional blocks and wiring information of the functional blocks. 3
Reference numeral 02 denotes a floor plan design, which determines the board on which the functional block determined in 301 is placed, the arrangement position in the board, and the shape of the functional block. Reference numeral 303 denotes a logic design, which performs a design at a logic circuit level for realizing functions in each functional block and between blocks. Reference numeral 304 denotes a layout design for designing a mask layout in each functional block and an integrated circuit substrate.

FIG. 19 shows an example of the structure of data of the MCM circuit stored in the main storage device 102. In FIG. 19, reference numeral 1910 denotes a header section in which information such as the name of data of an MCM circuit to be designed is stored, and 1920 denotes the M
A logical information unit 1930 stores logical connection information (net list) of the CM circuit. A block information unit 1930 stores shape information of blocks constituting each integrated circuit board of the MCM circuit. 1930 is 19
The block data of 31 and the shape information represented by, for example, two coordinate values of 1932 are used as unit data, and are configured from the unit data of all the functional blocks of the MCM circuit. 1
Reference numeral 940 denotes a wiring information unit that stores path information of wiring configuring the MCM circuit.
The unit data is composed of the unit data of all the wirings of the MCM circuit, using the wiring name 941 and the information of the set of the identification names of the wiring components 1942 represented by the line segments constituting the wiring as unit data. Reference numeral 1950 denotes a wiring component information section for storing shape information of the wiring component.
Is composed of the unit data of all the wiring components on the MCM circuit, using the identification name of the wiring component of 1951 and the shape information 1952 represented by, for example, the coordinate values of the two points of the start point and the end point as unit data. . Here, the coordinate position constituting the shape information of 1932 or 1952 is a preset substrate reference point of each substrate, for example, a center point of each substrate, and a coordinate value determined from a coordinate system having this as an origin. It is represented by Also,
In the same design environment, it is assumed that the same X-axis and Y-axis directions and the width of the unit length of the coordinate system are the same regardless of the type of the substrate.

FIG. 20 shows a first secondary storage device 103 for storing information of each of the two integrated circuit boards constituting the MCM circuit.
4 illustrates an example of a data storage structure of the second secondary storage device 104. 2010, a header section storing information such as the identification name of the integrated circuit board; 2020, a block information section storing information of a set of block names constituting the integrated circuit board; 2040 is a wiring component information section in which information of a set of identification names of wiring components existing on the circuit board is stored, and 2040 is a display reference point of the display device 105, for example, a center point of the display screen. This is an alignment information section in which vector values up to a substrate reference point are stored. In the positioning information section 2040, for example, a vector value (0, 0), that is, a value at which the display reference point matches the substrate reference point may be set as an initial value. Reference numeral 2050 denotes a board size information section which stores the size of each integrated circuit board as, for example, two coordinate values.
Here, it is assumed that the display device 105 has an XY coordinate system whose origin is set at the display reference point.

Hereinafter, an example of the operation of the embodiment of the design support apparatus according to claims 1 and 4 of the present invention will be described with reference to FIGS. 1, 2, 19, and 20.

Now, data of an MCM circuit composed of two substrates, a first integrated circuit substrate 201 and a second integrated circuit substrate 202, is stored in the main storage device 102 in the format shown in FIG. The board data of the circuit boards 201 and 202 are in the format shown in FIG.
Consider a case where the data is stored in the second secondary storage device 104.

When, for example, the display of the floor plan diagram of the integrated circuit board 201 is designated from the input device 101, the control device 108 designates the identification name of the integrated circuit board 201 to the display switching device 107. The display switching device 107 performs the first secondary storage device 103 and the second secondary storage device 104 based on the designation.
Then, the contents of each header 2010 are confirmed to obtain the storage contents of the first secondary storage device 103 that match the specification.
The control device 108 controls the storage contents of the first secondary storage device 103 acquired by the display switching device 107 and the main storage device 102
Is displayed on the display device 105 on the basis of the stored contents of the display device 105. At this time, the control device 108 displays the floor plan diagram of the integrated circuit substrate 201 from the display reference point of the display device 105 in the alignment information 2040. The floor plan diagram is displayed such that the substrate reference point of the integrated circuit substrate 201 is located at a position separated by a vector value.

Subsequently, from the input device 101 to the integrated circuit board 2
When the display designation of 02 is input, the control device 108 acquires the storage contents of the second sub-storage device 104 from the display switching device 107 by the same processing as described above, and aligns the floor plan diagram of the integrated circuit board 202. The information is displayed at a position on the display device 105 determined by the information 2040. At this time, the previously displayed drawing may be deleted.

Now, when the position of the floor plan diagram being displayed on the display device 105 is changed by the operation from the input device 101 in order to determine the position of superposition of the two integrated circuit boards, the control device 108 displays The change position of the substrate reference point on the device 105 is notified to the associating device 106. The associating device 106 adds the vector information representing the notified change position of the substrate reference point to the alignment information 20.
Rewrite the value of 40.

With the above-described apparatus, when the display screen of the integrated circuit board is switched, each board drawing is displayed at a display position suitable for the overlapping position of the boards, so that the designer can easily understand the relationship between the boards. Be able to understand.

In the above description, the floor plan diagram of each integrated circuit board constituting the MCM circuit is displayed.
The layout diagram may be targeted. The design support apparatus shown in FIG. 1 includes a main storage device 102 and a first secondary storage device 1.
However, instead of these, it is also possible to provide only one storage device that collectively stores the contents stored therein. In the above description, an MCM circuit composed of two integrated circuit boards is assumed, but
In a design in which a plurality of integrated circuit boards are mounted on the first integrated circuit board, by treating each of the plurality of integrated circuit boards individually as a second integrated circuit board,
The present invention is applicable.

When proceeding with the design of the device 205 according to the design flow based on FIG. 3, in the floor plan design 302 and the layout design 304, for example, the functional blocks for realizing the functions of the device 205 are defined by the two integrated circuit boards 201 and 202.
It is necessary to determine which of them is to be placed, the arrangement position and shape of the functional blocks placed on each of the integrated circuit boards, the positions of the terminals connecting the functional blocks, the wiring routes, and the like.

In particular, regarding the method of determining the integrated circuit board on which these are to be arranged for each of the functional blocks described above, the functional blocks can be interactively connected to each other while looking at a display screen such as a floor plan diagram of each of the integrated circuit boards. The function to move by is required.

FIG. 4 shows an example in which a functional block on one integrated circuit board is moved to the other integrated circuit board. FIG. 4A is a floor plan diagram of the one integrated circuit substrate before the function block moving process, and FIG. 4B is a floor plan diagram of the other integrated circuit substrate after the function block moving process. It is. 4A, reference numeral 401 denotes a display diagram of one integrated circuit substrate currently displayed on the display device 105, and reference numerals 402 and 403 denote functional blocks arranged on the substrate 401. In particular, the functional block 402 The functional block to be moved to the other integrated circuit substrate.
In FIG. 4B, reference numeral 404 denotes a display diagram of the other integrated circuit substrate displayed on the display device 105, and reference numeral 405 denotes a substrate 40
FIG. 4 is a functional block diagram disposed on FIG.

Hereinafter, FIGS. 1, 2, 19, 20, and 4 will be described.
An example of the operation of the embodiment of the design support apparatus according to claim 2 of the present invention will be described with reference to FIG.

Now, some functional blocks are arranged on each of the integrated circuit boards by an arbitrary method, and are composed of two substrates, a first integrated circuit board 201 and a second integrated circuit board 202. The data of the MCM circuit is stored in the main storage device 102 in the format shown in FIG. 19, and the configuration data of each of the integrated circuit boards 201 and 202 is stored in the format shown in FIG.
Consider a case in which a floor plan diagram 401 of the first integrated circuit board 201 is displayed on the display device 105 stored in the first secondary storage device 103 and the second secondary storage device 104, respectively.

The function block 402 is operated by the input device 101.
Is selected and an instruction to move the integrated circuit board 202 to the floor plan diagram (original floor plan diagram) is issued.
08, the associating device 106 becomes the first secondary storage device 1
03 and the respective alignment information 2 of the second secondary storage device 104
040 and the position coordinates of the function block 402 in the floor plan diagram 401 stored in the main storage device 102, the position coordinates of the function block 402 on the original floor plan diagram are calculated, and the calculation result is obtained. Is the shape information 1 corresponding to the functional block 402 of the main storage device 102.
932 is overwritten. Further, the associating device 106
(1) The function block 402 is deleted from the set of block names of the block information section 2020 of the secondary storage device 103, and the function block is included in the set of block names of the block information section 2020 of the second storage device 104. 40
Add the block name of 2. In the course of the above process, the control device 108 may delete the display of the functional block 402 from the currently displayed floor plan diagram 401.

Subsequently, when display of the other integrated circuit board 202 is instructed by the input device 101, the control device 108
Is the main storage device 1 whose storage contents have been changed by the above processing.
02 and the second secondary storage device 104,
As a result, as shown in FIG.
Is moved from the floor plan diagram 401 to the original floor plan diagram, and the floor plan diagram 404 is displayed.

With the above-described apparatus, it is possible to easily perform a process of moving a functional block from a floor plan diagram of one integrated circuit board to another integrated circuit board. In addition, since the function block is moved while maintaining the absolute position,
The identification of the moved functional block becomes clear, and the floor plan diagram before the movement is easily restored.

In the above description, the floor plan diagram of each integrated circuit board constituting the MCM circuit is displayed.
The layout diagram may be targeted. In this example, only the movement of one function block has been described. However, a plurality of function blocks may be selected at a time, and may be collectively moved between the integrated circuit boards.

Next, the apparatus 2 is designed according to the design flow based on FIG.
Consider the layout positions of functional blocks and wirings on each integrated circuit board when proceeding with the design of 05. If the positions of the sides of the functional blocks are matched between the integrated circuit boards constituting the MCM circuit during floor plan design or layout design, the wiring becomes simple and short, and the layout area may be reduced.

FIG. 5 shows an example in which the sides of the functional blocks of each integrated circuit board are aligned. FIG. 5A is a diagram before the edge alignment is performed, and FIG. 5B is a diagram after the edge alignment is performed. In FIG. 5, reference numeral 501 denotes one integrated circuit board currently displayed on the display device, 502 denotes a functional block for performing edge alignment, and 503 denotes a functional block 502
504 is the other integrated circuit board, and 505 is one side of a functional block existing on the integrated circuit board 504.

Hereinafter, FIGS. 1, 2, 19, 20, and 5 will be described.
An example of the operation of the embodiment of the design support apparatus according to claim 3 of the present invention will be described with reference to FIG.

Now, some functional blocks are arranged on each of the integrated circuit boards by an arbitrary method, and are composed of two boards, a first integrated circuit board 201 and a second integrated circuit board 202. The data of the MCM circuit is stored in the main storage device 102 in the format shown in FIG. 19, and the configuration data of each of the integrated circuit boards 201 and 202 is stored in the format shown in FIG.
It is assumed that the first integrated circuit substrate 201 is stored in the first secondary storage device 103 and the second secondary storage device 104, and the display device 105 displays a floor plan diagram of the first integrated circuit board 201.

Now, the integrated circuit board 50 is placed on the display device 105.
When “1” is displayed, execution of edge alignment processing is designated from the input device 101, and one side 503 of the function block 502 is specified.
Is selected, the control device 108 displays the integrated circuit board 504 on the display device 105 via the display switching device 107. Thereafter, when one side 505 is designated from the input device 101, the association device 106
The first X coordinate value of the side 505 and the second X coordinate value of the side 503 are read from the main storage device 102 based on the instruction from the main storage device 102, and each X coordinate of the two coordinate positions of the shape information 1932 of the functional block 502 is read. Value is (the first X coordinate value) −
(The second X coordinate value).
After this processing is completed, the control device 108 may redisplay the integrated circuit substrate 501 on the display device 105 based on the changed contents of the main storage device 102. At this time, as shown in FIG. 4B, the integrated circuit board 501 has the function block 502 such that the X coordinate of the side 503 coincides with the side 505.
Is moved and displayed.

With the above-described apparatus, it is possible to align the sides of the related functional blocks between the integrated circuit boards, so that, for example, the wiring length of a critical path or the like can be shortened, and the entire substrate area can be reduced. is there.

In this example, the X coordinate is matched, but the Y coordinate can be matched according to the direction of the side to be aligned. It is also possible to select sides of a plurality of functional blocks at a time and match these sides at once. In this example, the function block 502 having the side 503 selected earlier is moved to match the side 505. However, the block having the side 505 selected later is moved to match the side 503. It does not matter.

As described above, according to the first and fourth aspects of the present invention, a floor plan design and a layout design of a semiconductor integrated circuit device which can be realized by connecting two integrated circuit boards to terminals are performed. By switching one screen to one display screen by inputting a signal from the input device and displaying the two screens, it becomes possible to design two integrated circuit boards in parallel. Claim 2
According to the invention, the function blocks can be moved between the integrated circuit boards, and a function useful for performing an optimal floor plan can be provided. According to the third aspect of the present invention, the coordinates of the sides of the functional block between different substrates can be matched, and the wiring can be shortened.

(Embodiment 2) In the second embodiment of the present invention, the invention according to claim 5, claim 6, claim 7, claim 8, or claim 9 will be described.

FIG. 6 is a hardware configuration diagram according to the second embodiment of the present invention. 6, reference numeral 601 denotes an input device such as a keyboard or a mouse; 602, a main storage device for storing connection information of a multi-chip module circuit (MCM circuit); and 603, 604, sub-devices for storing board information for each integrated circuit board. A storage device, 605 is a multi-screen display device capable of displaying a multi-screen having a common coordinate system with others on a CRT or the like, 606 is an associating device for establishing a logical relationship between two integrated circuit boards, and 607 is Multi-screen display device 605
A coordinate management device for accessing and managing the display position of each integrated circuit board displayed on the first sub-storage device 603 and the storage content of the second sub-storage device 604. A control device for controlling the display of the integrated circuit board and acquiring the display information, and controlling the operation of each of the above-described components;
It is.

FIG. 21 shows a first secondary storage device 603 for storing information of each of two integrated circuit boards constituting an MCM circuit.
4 illustrates an example of a data storage structure of a second secondary storage device 604. Reference numeral 2110 denotes a header section in which information such as the identification name of the integrated circuit board is stored; 2120, a block information section in which information of a set of block names constituting the integrated circuit board is stored; A wiring component information section 2140 in which information of a set of identification names of wiring components existing on the circuit board is stored is displayed from a display reference point of the multi-screen display device 605, for example, a center point of each display screen. The reference position information section stores vector values up to a substrate reference point of the integrated circuit substrate, for example, a center point of the integrated circuit substrate. The reference position information unit 2140 includes, for example, a vector value (0, 0) as an initial value, that is, a value at which each of the display reference points and each of the substrate reference points corresponding to the display reference points match.
May be set. Reference numeral 2150 denotes a board size information section which stores the size of each integrated circuit board as, for example, two coordinate values. Here, in the multi-screen display device 605, an XY coordinate system whose origin is each display reference point is set in advance for each of the display screens.
It is assumed that the coordinates of the axis, the direction of the Y axis, and the width of the unit length are all the same.

Hereinafter, an example of the operation of the embodiment of the design support apparatus according to the fifth and ninth aspects of the present invention will be described with reference to FIGS. 2, 6, 19, and 21.

Now, data of an MCM circuit composed of two substrates, a first integrated circuit substrate 201 and a second integrated circuit substrate 202, is stored in the main storage device 102 in the format shown in FIG. The board data of the circuit boards 201 and 202 are in the format shown in FIG.
Consider the case where the data is stored in the second secondary storage device 604.

The integrated circuit board 201 is input from the input device 601.
For example, when the display of the floor plan diagram is designated, the control device 608 stores the main storage device 602 and the first secondary storage device 603 which can be obtained via the coordinate management device 607.
Based on the storage contents of the second sub-storage device 604, for example, the integrated circuit board 20 is displayed on the first screen on the multi-screen display device 605.
1 is displayed on the second screen with the integrated circuit board 20.
2 is displayed. At this time, the first screen and the second screen of the multi-screen display device 605 include:
Each floor plan diagram is displayed such that each board reference point overlaps the coordinate position of each reference position information section 2140 stored in the first sub-storage device 603 and the second sub-storage device 604, respectively.

For example, the display reference points of the first screen and the second screen are set as the center points of the respective screens, and the substrate reference points of the integrated circuit boards 201 and 202 are set as the center points of the respective boards. When the values of the respective reference position information sections of the first sub-storage device 603 and the second sub-storage device 604 are both coordinate values (0, 0), the floor plan diagram of each substrate is as follows.
It will be displayed in the middle of the first and second screens corresponding to each substrate.

In the above display state, the input from the input device 601, for example, the integrated circuit board 2 on the second screen
Consider a case where the floor plan diagram of No. 02 has been moved. The control device 608 recognizes a vector value corresponding to a shift from the display reference point on the second screen to the substrate reference point of the integrated circuit board 202, and notifies the coordinate management device 607 of this value. The coordinate management device 607 updates the value of the reference position information section 2140 of the second sub storage device 604 to this vector value. When the integrated circuit board 202 is redisplayed, the floor plan diagram of the integrated circuit board 202 is displayed based on the changed value, so that the result of the movement processing is reflected in the next display. .

With the above-described apparatus, for example, the integrated circuit board 20
1 and the integrated circuit board 202 can be interactively moved, and the editing result is sequentially reflected, so that the design operator can simultaneously design a plurality of boards. It can be implemented intermittently.

In the above description, the floor plan diagram of each integrated circuit substrate constituting the MCM circuit is displayed.
The layout diagram may be targeted. The design support device shown in FIG. 1 includes a main storage device 602 and a first secondary storage device 6.
03, a second secondary storage device 604 is provided, but instead of these, the contents stored in these are collectively stored.
This can be realized even if only one storage device is provided. Although the above description has been made on the premise that the MCM circuit is composed of two integrated circuit boards, the design in which a plurality of integrated circuit boards are mounted on the first integrated circuit board also requires a plurality of integrated circuits mounted on the first integrated circuit board. The present invention can be applied by treating each of the circuit boards individually as a second integrated circuit board.

FIG. 7 is an enlarged view of the designated area of the display diagram displayed on the first screen and the second screen. In FIG. 7, reference numerals 701 and 711 denote the first screen and the second screen, respectively.
And a floor plan diagram or a layout diagram of the integrated circuit board 202 are displayed. Reference numeral 702 denotes an area specified by the input device 601 on the first screen 701, and reference numeral 712 denotes an area 70.
An area on the second screen 711 corresponding to the coordinate position of No. 2 (hereinafter referred to as a corresponding area), 703 is an arbitrary position A on the designated area 702, and 713 is a corresponding area corresponding to the coordinate position of the A point 703 A point A 'on 712, designated area 704 is designated area 7
02 is enlarged and displayed according to the size of the first screen 701, and the corresponding area 712 is displayed in the second screen 711.
The result is enlarged and displayed according to the size of.

Hereinafter, an example of the operation of the embodiment of the design support apparatus according to claim 6 of the present invention will be described with reference to FIG. 2, FIG. 6, and FIG.

The first screen 701 and the second screen 701 on the multi-screen display 605 are provided by the semiconductor integrated circuit design support apparatus of FIG.
A screen 711 displays a floor plan diagram or a layout diagram of the integrated circuit board 201 and the integrated circuit board 202, respectively. Now, the integrated circuit board 201 displayed on the first screen 701 by the input device 601
If an arbitrary area 703 of the floor plan diagram is designated, the control device 608 obtains the coordinate value of the center of the designated area, and based on the size of the designated area 702 and the size of the first screen 701. The scale of the coordinate system of the first screen 701 is enlarged, and then, based on the storage contents of the main storage device 602 and the first sub-storage device 603 obtained via the coordinate management device 607, the first screen 701 is displayed. The values of the block shape information 1932 and the wiring component shape information 1952 are shifted by the value of the center coordinates of the specified area so that the center coordinates of the specified area overlap the center point.
Is enlarged and displayed on the first screen.
At this time, the content of the main storage device 602 is not updated.
Further, the coordinate system of the second screen 711 is enlarged by the enlargement scale, and the center coordinates of the corresponding area 712 are changed based on the storage contents of the main storage device 602 and the second sub storage device 604 in the same manner as described above. The floor plan of the integrated circuit board 202 is enlarged and displayed on the second screen 711 so as to overlap the center point of the second screen 711. At this time, the portion exceeding the size of the first screen 701 and the second screen 711 may not be displayed. Screen 70 thus enlarged and displayed
4 and the screen 714, as can be seen from the correspondence between the point A and the point A ', an enlarged view of a place corresponding to the overlapping position between the substrates is displayed.

With the above-mentioned apparatus, it becomes possible to enlarge and display the designated area by linking the display screens of the layout diagram or floor plan diagram of the integrated circuit board 201 and the integrated circuit board 202.

The scale of the enlargement is the same as that of the X-axis and the Y-axis obtained from the size of the first screen 701 and the size of the designated area 702 in accordance with the smaller one of the scales. May be enlarged. In the present embodiment, the area to be enlarged and displayed is specified from the input device 601. However, the enlargement ratio or the reduction ratio may be set in advance, and the magnification may be directly specified from the input device 601. In the present embodiment, the case of enlarged display has been described. However, the case of reduced display can also be implemented by the same method.

FIG. 8 is an explanatory diagram of a method for moving the functional blocks constituting the two integrated circuit boards between the two integrated circuit boards by using the design support apparatus of the present invention. FIG. 8A is a diagram before the function block is moved, 801 and 802 are the first screen and the second screen, and 803 is a function block to be moved. FIG. 8B is a diagram after the function block has been moved.

Hereinafter, FIGS. 2, 6, 8, 19, and 21 will be described.
An example of the operation of the embodiment of the design support apparatus according to claim 7 of the present invention will be described with reference to FIG.

Now, several functional blocks are arranged on each of the integrated circuit boards by an arbitrary method, and are composed of two substrates, a first integrated circuit board 201 and a second integrated circuit board 202. The data of the MCM circuit to be executed is stored in the main storage device 602 in the format shown in FIG. 19, and the board information of the integrated circuit boards 201 and 202 is stored in the format shown in FIG.
An integrated circuit board 201 is stored in the first screen on the multi-screen display device 605, and an integrated circuit board 201 is stored in the second screen, respectively, in the first sub-storage device 603 and the second sub-storage device 604. Consider a case where the floor plan diagram 202 is displayed.

The input device 601 causes the function block 803 to be used.
Is selected and the movement of the integrated circuit board 201 to the destination floor plan diagram is instructed, the control device 608 stores the first sub-storage device 603 and the second sub-storage device 604 obtained via the coordinate management device 606. The information of each reference position information 2140 and the function block 8 in the source floor plan diagram of the integrated circuit board 202 stored in the main storage device 602
The position coordinates of the functional block 803 on the destination floor plan diagram are calculated from the position coordinates of the functional block 803, and the functional block 803 is arranged at the calculated position on the destination floor plan diagram, and the movement is performed. The function block 803 is deleted from the original floor plan diagram. Further, the control device 60
8 overwrites the calculated position coordinate value with the shape information 1932 corresponding to the functional block 803 of the main storage device 602 via the associating device 606, and also stores the block name of the block information section 2120 of the second sub-storage device 604. Delete the block name of the function block 803 from the set of
The block name of the function block 803 is added to the set of block names in the block information section 2120 of the first secondary storage device 603. This processing makes it possible to move the functional blocks between the integrated circuit boards.

In this embodiment, the movement of the function block is performed based on the coordinate position. For example, the selected function block to be moved is displayed on the display area 802 of the movement destination according to the movement of the input device 601 such as a mouse. May be implemented in an interactive manner, such as moving to any location of the. Also,
When this interactive method is performed, the shape of the functional block 803 to be moved may be virtually displayed in accordance with the movement of the input device 601.

FIG. 9 is an explanatory diagram of a method of aligning positions of functional blocks existing on different integrated circuit substrates. FIG. 9A is a diagram before the positions of the functional blocks are adjusted, and reference numerals 901 and 911 denote a display area and 9.
02 is a functional block in the integrated circuit board displayed in the display area 901, 912 is a functional block in the integrated circuit board displayed in the display area 911, 903 is one side of the functional block 902, and 913 is a function One side of the block 912. FIG. 9B is a diagram after the positions of the functional blocks have been adjusted.

Hereinafter, FIGS. 2, 6, 9, 19, and 21 will be described.
An example of the operation of the embodiment of the design support apparatus according to claim 8 of the present invention will be described with reference to FIG.

Now, some functional blocks are arranged on each of the integrated circuit boards by an arbitrary method, and are constituted by two boards, a first integrated circuit board 201 and a second integrated circuit board 202. The data of the MCM circuit to be executed is stored in the main storage device 602 in the format shown in FIG. 19, and the configuration data of each of the integrated circuit boards 201 and 202 is stored in the format shown in FIG.
An integrated circuit board 201 is stored in the first screen on the multi-screen display device 605, and an integrated circuit board 201 is stored in the second screen, respectively, in the first sub-storage device 603 and the second sub-storage device 604. Consider a case where the floor plan diagram 202 is displayed.

Now, the execution of the edge matching process is designated from the input device 601, one side 903 of the function block 902 is selected, and subsequently the side 913 is designated.
06 reads the first X coordinate value of the side 913 and the second X coordinate value of the side 903 from the main storage device 602 based on an instruction from the control device 608, and reads the two pieces of shape information 2132 of the function block 902. Each X coordinate value of the coordinate position is
Replace with a value shifted by (the first X coordinate value)-(the second X coordinate value), and move on the first screen 901 so that the display position of the function block 902 matches this value. To display. By this processing, the X coordinate of the side 903 matches the side 913 as shown in FIG. 9B.

In this embodiment, an example has been described in which the side 903 of the function block 902 selected earlier is matched with the side 913 of the function block 912 selected later. The function block selected later may be shifted using the side as a reference for alignment. Further, in the present embodiment, the functional blocks are shifted in the X-axis direction for alignment, but the functional blocks may be shifted in the Y-axis direction depending on the side to be selected. Further, in the present embodiment, the description has been given of the alignment of one side. However, a plurality of functional blocks to be shifted and the side of the alignment are designated at a time, and these are designated as the alignment reference sides. At the same time. In this embodiment, one side of the functional block is used as a reference for positioning. However, a position serving as a reference line for positioning is arbitrarily set by the input device 601 and both display areas 901 and 9 are set to this reference line.
The sides of the functional block selected on 02 may be matched.

As described above, according to the fifth and ninth aspects of the present invention, since the floor plan diagrams or the layout diagrams of the two integrated circuit boards are simultaneously displayed in association with each other, an interactive floor plan is provided. Design or layout design can be performed very easily. In the invention according to claim 6, since the enlarged display and the reduced display are performed in conjunction with the floor plan diagram or the layout diagram of the two integrated circuit boards, the correspondence between the integrated circuit boards can be easily understood. Thus, interactive floor plan design or layout design can be performed very efficiently. Further, in the invention according to claim 7, since the functional blocks can be easily moved between the two integrated circuit boards, it is possible to perform a trial and error design which frequently occurs in a floor plan design or the like in a short time. Becomes Also,
In the invention according to claim 8, the positions of the functional blocks existing in the integrated circuit boards can be easily adjusted, and the wiring between the integrated circuit boards can be shortened.

(Embodiment 3) In the third embodiment of the present invention, claim 10, claim 11, claim 12, and claim 1
Third, the invention according to claim 14 will be described.

A semiconductor integrated circuit device to which the design support apparatus of the present invention is applied can be obtained by connecting two integrated circuit boards to terminals as shown in FIG. In order to perform the floor plan design and the layout design of the MCM circuit, it is necessary to determine the arrangement position and shape of the functional blocks placed on each of the two integrated circuit boards, the positions of the terminals connecting between them, and the wiring paths.

FIG. 10 is a hardware configuration diagram according to the third embodiment of the present invention. In FIG. 10, 1001
Is an input device such as a keyboard and a mouse, and 1002 is an MCM
A main storage device for storing circuit connection information and the like;
004 is a sub-storage device for storing board information for each integrated circuit board, 1005 is a display device such as a CRT, and 1006 is related block extraction for acquiring a functional block group having a direct connection relationship with a designated functional block. Device, 1007
Is a coordinate management device that manages the display coordinate positions of both integrated circuit boards on the display device 1005, and 1008 is the specified function block in the function block group obtained by the related block extraction device 1006. Other board block display controller 1009, which acquires information of functional blocks on other integrated circuit boards that are not present on the integrated circuit board and displays it on display 1005 based on the information, is acquired by related block extracting apparatus 1006. A rat nest display control device for generating and displaying a rats nest between the designated functional block and the functional block group present on the integrated circuit board in which the designated functional block exists, and a related block extraction controller 1010 The designated function block and its existence in the group of function blocks acquired by the device 1006 That the integrated circuit board between ratsnest display control device generates ratsnest display between the functional blocks of the other integrated circuit substrate which is not present on the substrate, 1
Reference numeral 011 denotes a control device that controls the display of the integrated circuit board on the display device 1005, obtains display information, and controls the operation of each of the above components. Here, the rat's nest is a visual representation of the connection relationship between the functional blocks, and is used by a designer to interactively determine the arrangement position of the functional blocks, or the wiring length between the functional blocks or the like. It is used for estimating wiring complexity.

FIG. 11 is a diagram showing a display example of ratsnest. In FIG. 11, reference numeral 1101 denotes an integrated circuit board;
Reference numerals 2 and 1103 denote functional blocks on the integrated circuit substrate 1101, 1104 denotes functional blocks on another integrated circuit substrate,
Reference numeral 105 denotes a ratsnest between the functional block 1102 and another functional block on the integrated circuit board 1101 on which the functional block 1102 exists, and 1106 denotes a ratsnest on the integrated circuit board 1101 on which the functional block 1102 does not exist. It is a ratsnest between function blocks.

Hereinafter, the design support apparatus according to claims 10, 11, 12, 13, and 14 of the present invention will be described with reference to FIGS. 2, 10, 11, 19, and 20. An example of the operation of the embodiment will be described.

Now, data of an MCM circuit composed of two substrates, a first integrated circuit substrate 201 and a second integrated circuit substrate 202, is stored in the main memory in the format shown in FIG. 20 is stored in the first secondary storage device 1003 and the second secondary storage device 1004 in the format shown in FIG. Also, the integrated circuit board 1101 is an integrated circuit board 2 of this MCM circuit.
01 is assumed.

Now, when the function block 1102 is selected from the input device 1001 and the display of the ratsnest is designated, the control block 1011 controls the relation block extraction device 1006 to refer to the netlist in the main storage device 1002. Then, a function block group directly connected to the function block 1102 is obtained. Subsequently, the related block extraction device 1006 stores the first secondary storage device 1003 and the second
By referring to the set of block names stored in each block information section 2020 of the secondary storage device 1004, the obtained functional block group is referred to as a functional block group on the integrated circuit board 201 and an integrated circuit board 202. It is classified into a functional block group on the other substrate above.

Also, under the control of the control device 1011, the coordinate management device 1007 stores the first secondary storage device 1003
And the alignment information unit 2040 of the second secondary storage device 1004
The vector values for converting the coordinate system of the integrated circuit board 202 into the coordinate system of the integrated circuit board 201 are calculated based on the respective vector values stored in. For example, the first secondary storage device 10
03, the value of the alignment information unit 2040 is (2, 3), and the alignment information unit 204 of the second secondary storage device 1004
When the value of 0 is (5, 10), the conversion vector value is (3, 7). That is, when 3 and 7 are added to the X coordinate value and the Y coordinate value of the position coordinates on the integrated circuit board 202, respectively, the position of the integrated circuit board 201 in the coordinate system is obtained.

The other substrate block display control device 1008
Information on functional blocks on the other board classified by the related block extracting device 1006 and the coordinate managing device 1007
The coordinate value of the shape information 1932 of the functional block group on the other substrate stored in the main storage device 1002 is coordinate-converted with the conversion vector value based on the conversion vector value calculated in Is superimposed on the display diagram of. At this time, the functional block group existing on the integrated circuit board 201 and the integrated circuit board 202 displayed in this processing are displayed.
In order to distinguish the above functional block group from the above functional block group, the latter functional block group may be displayed only in the shape frame of the block and the inside may be displayed transparently. Further, the shape frame of the block may be displayed by a line type such as a broken line.

Subsequently, the ratsnest display control device in the board performs the function block 1102 with each of the functional blocks on the same board classified by the related block extracting device 1006.
With reference to the netlist information in the main storage device 1002, the depth of the connection relationship is acquired, and a ratsnest 1105 corresponding to the depth of the relationship is displayed. The inter-substrate ratsnest display control device 1010 includes a related block extracting device 10.
06, the depth of the connection relationship between each of the functional blocks on the other board and the functional block 1102 is obtained with reference to the netlist information of the main storage device 1002, and the depth is determined according to the depth of this relationship. The rats nest 1106 is displayed. At this time, the intra-substrate ratsnest display control device 1009
The ratsnest 1105 and the ratsnest 1106 may be displayed in different colors, thicknesses, and line types in order to visually distinguish the ratsnests displayed by each of the inter-substrate ratsnest display control devices 1010.

During the above series of processing, the storage contents of the main storage device 1002, the first secondary storage device 1003, and the second secondary storage device 1004 are not changed. Thus, as shown in FIG.
A function block group and ratsnest related to and within the integrated circuit board for an arbitrary function block are displayed.

With the above-described design support apparatus, it is possible to visually grasp the wiring length 20 and the complexity of wiring between functional blocks existing on different integrated circuit boards. Also,
Since only the function block group and ratsnest group related to the specified function block are displayed, it is very easy to visually recognize as compared with the case where the entire two substrates are simply displayed in a superimposed manner. Also, by changing the method of displaying the colors and thickness of rats nests and functional blocks between and between substrates, the degree of congestion and complexity of wiring within one substrate can be easily confirmed.

Even if the rats nest between the integrated circuit boards or the display position of the function block of another integrated circuit board exceeds the displayable area of the screen, the rats nest or the function block is located at a position beyond the display area. You may display as what exists logically. In the above embodiment, the first
Although FIG. 20 is used as the storage structure of the secondary storage device 1003 and the second secondary storage device 1004, the storage structure shown in FIG. 21 can also be realized.

As described above, according to the tenth aspect of the present invention,
According to the fourteenth aspect of the present invention, when the ratsnest is displayed to obtain connection information of a certain functional block, it is present on a different board by displaying the functional blocks having a connection relationship on different boards. The wiring length between the functional blocks and the complexity of the wiring can be visually grasped. According to the eleventh, twelfth, and thirteenth aspects of the present invention, the colors and thickness of ratsnests between functional blocks on the same substrate and ratsnests between functional blocks on different substrates are changed. (1) The degree of congestion and complexity of wiring within one substrate, the number of terminals between substrates, and the like can be visually grasped.

(Embodiment 4) In the fourth embodiment of the present invention, the inventions according to claims 15, 16 and 17 will be described.

FIG. 12 is a hardware configuration diagram according to the fourth embodiment of the present invention. In FIG.
1 is an input device such as a keyboard and a mouse, and 1202 is an MC
A main storage device for storing connection information of the M circuit, etc., 1203;
Reference numeral 1204 denotes a sub-storage device for storing substrate information of each integrated circuit substrate; 1205, a display device such as a CRT; 1206, an inter-substrate wiring extraction device for extracting wiring extending between two integrated circuit substrates; A wiring display control device for displaying the wiring obtained in the above on each integrated circuit substrate, 120
A control device 8 controls display of the integrated circuit board on the display device 1205, obtains display information, and controls the operation of each of the above components.

FIG. 13 is a layout diagram of the integrated circuit board displayed on the display device 1205 when the wiring between the integrated circuit boards exists. In FIG. 13, 13
Reference numerals 01 to 1305 denote functional blocks, reference numerals 1311 to 1316 denote wirings ending in the integrated circuit substrate (hereinafter referred to as wirings within the substrate), and reference numerals 1321 to 1322 denote wirings extending between the integrated circuit substrates on the integrated circuit substrate side ( Hereinafter, these are referred to as inter-substrate wirings.
Reference numerals 21 to 1322 denote connection points (hereinafter referred to as substrate terminals) when terminals are connected to other integrated circuit boards.

Hereinafter, an example of the operation of the embodiment of the design support apparatus according to claims 15 and 17 of the present invention will be described with reference to FIGS. 2, 12, 13, 19, and 20.

Now, data of an MCM circuit composed of two substrates, a first integrated circuit substrate 201 and a second integrated circuit substrate 202, is stored in the main storage device 1202 in the format shown in FIG. It is assumed that the board information of the boards 201 and 202 is stored in the first secondary storage device 1203 and the second secondary storage device 1204 in the format shown in FIG.

When a display of a layout diagram of the integrated circuit board 201 is designated from the input device 1201, for example, the control device 1208 firstly displays the display device 1205 based on the storage contents of the main storage device 1202 and the first sub storage device 1203. The functional blocks 1301 to 1305 and the wiring 13 in the board
11-1316, and 1321 and 132
Part of the wiring routed between the second integrated circuit substrate 201 and the second integrated circuit substrate 202 is displayed by the same display method as 1311 to 1316. At this time, the connection terminal portion between the substrates appears to be broken in display.

Subsequently, based on the control of the control device 1208, the inter-board wiring extracting device 1206 operates the main storage device 120.
From the set 1942 of the wiring component names of the wiring information section 2 and the wiring component information section 2030 of the first secondary storage device 1203, the names of the wirings extending between the integrated circuit boards 201 and 202 are identified. Specifically, for example, from a wiring group consisting of a wiring component name set 1942 including at least one wiring component name which is a component of the wiring component information unit 2030, the wiring component name set 1942 is set. Not all of the constituent elements in the wiring component information unit 2030 are obtained.

Subsequently, the wiring display control device 1207 extracts the wiring component information section 20 of the first sub-storage device 1203 from among the wirings between the substrates obtained by the wiring extraction device 1206 between the substrates.
Only the wiring components stored in 30 are displayed by changing the display method from the wiring within the substrate of the integrated circuit substrate 201 and the display method. For example, symbols or graphics such as white circles 1333 or 1332 may be added to all the board terminals and displayed, or only the wiring components may be connected to the in-board wirings 1321 or 1322. Change the thickness to display. By this processing, it is possible to explicitly display the wiring between the substrates in distinction from the wiring in the substrate.

Note that the thickness and color of the inter-substrate wiring may be displayed differently from the intra-substrate wiring in order to facilitate distinction from the intra-substrate wiring. In this embodiment, only the display method for one integrated circuit board is described, but the other integrated circuit board may be displayed in a similar manner.

The invention according to claim 16 provides the display device 120
The display switching between the intra-substrate wiring and the inter-substrate wiring displayed in 5 is performed. Specifically, for example, when the control device 1208 displays the layout diagram of the integrated circuit board 201, the data of the wiring in the board is determined based on the storage contents of the main storage device 1202 and the first sub storage device 1203. Display control may be performed separately from the data of the inter-substrate wiring. For example, when the display switching designation from the input device 1201 designates the display of only the in-board wiring, only the distinguished in-board wiring is displayed, and the inter-board wiring extracting device 1206 is not executed. When the display of only the wiring between boards is designated, only the display of the functional block may be displayed, and then the wiring extracting apparatus 1206 may be executed. With this processing, it is possible to more clearly display the distinction between the wiring between the boards and the wiring within the board.

As described above, according to the fifteenth and seventeenth aspects of the present invention, search and correction of the wiring between the substrates are facilitated. In particular, the design efficiency of the above-mentioned work process by hand is dramatically improved. Further, according to the invention of claim 16 of the present invention, since only necessary types of wiring can be displayed, the complexity of the display drawing is reduced, and troubles due to wiring selection mistakes and the like can be reduced. .
Further, by displaying the wiring terminals, the congestion degree of the wiring terminals can be visually recognized, and can be used as an index for the designer to place the board terminals in a dispersed manner.

(Embodiment 5) In a fifth embodiment of the present invention, the invention according to claims 18, 19 and 20 will be described.

A semiconductor integrated circuit device to which the design support apparatus of the present invention is applicable can be realized by connecting two integrated circuit boards with terminals as shown in FIG. In order to design a floor plan or a layout of this semiconductor integrated circuit device, it is necessary to satisfy design constraints for each of the two integrated circuit boards, and further to satisfy design constraints between the integrated circuit boards. There must be. The former can be identified with the problem in the conventional single-substrate semiconductor integrated circuit device, but the latter is a problem specific to a semiconductor integrated circuit device composed of a plurality of substrates. The present invention
It is intended to solve the latter problem.

FIG. 14A is a hardware configuration diagram according to the fifth embodiment of the present invention. In FIG. 14A, reference numeral 1401 denotes an input device such as a keyboard and a mouse;
02 is a main storage device for storing connection information and the like of the MCM circuit,
Reference numerals 1403 and 1404 denote secondary storage devices for storing substrate information of each integrated circuit substrate, 1405 a display device such as a CRT,
Reference numeral 06 denotes a constraint evaluation device that evaluates design constraints between two integrated circuit boards, and reference numeral 1407 denotes a control device that controls display of the integrated circuit substrate on a display device 1405, obtains display information, and controls the operation of each of the constituent devices. It is.

FIG. 14B is a processing flow in which the constraint evaluation device 1406 evaluates the design constraint between the integrated circuit boards. In FIG. 14B, reference numerals 1411 to 1415 denote processing steps.

Here, the design constraint is determined by the relationship between the number of terminals (hereinafter, referred to as substrate terminals) connecting the integrated circuit boards and the number of wirings extending over the two integrated circuit boards. And That is, among the integrated circuit boards constituting the semiconductor integrated circuit device, the maximum number of usable substrate terminals determined depending on the size of the integrated circuit board mounted on another integrated circuit board is the semiconductor integrated circuit device. It must be larger than the number of wires between the integrated circuit boards, which is determined by the logical connection relationship of the circuits constituting the integrated circuit device and the assignment of the functional block groups to the integrated circuit boards. Further, assuming that there is a wiring that goes between the integrated circuit boards even with the same wiring, the maximum number of the substrate terminals must be larger than the number of wiring components on the integrated circuit board. .

FIG. 2, FIG. 14 (a), FIG.
(B), FIG. 19 and FIG. 20, claim 1 of the present invention.
An example of the operation of the embodiment of the design support apparatus according to claim 8, claim 19, and claim 20 will be described.

Now, data of an MCM circuit composed of two substrates, a first integrated circuit substrate 201 and a second integrated circuit substrate 202, is stored in the main storage device 1402 in the format shown in FIG. It is assumed that the board information of the boards 201 and 202 is stored in the first secondary storage device 1403 and the second secondary storage device 1404 in the format shown in FIG.
It is also assumed that the integrated circuit board 201 is mounted on the integrated circuit board 202.

The control device 1407 operates, for example, when the integrated circuit board 201 displayed on the display device 1405 is the input device 1.
When edited by the operation from 401, the main storage device 1402 and the first sub storage device 140
3. Rewrite the contents of the second secondary storage device 1404. Subsequently, the constraint evaluation device 1406 is executed.

First, the constraint evaluation device 1406 calculates the number of available board terminals from the size of the integrated circuit board 201 that can be obtained from the board size information section 2050 (processing step 1411). Next, the number of wirings between logical integrated circuit boards is calculated (processing step 1412). There are two methods depending on the design process. One method is to use a net list stored in the logical information section 1920, a first secondary storage device 1403, and a second secondary storage device 1404.
Is a method of obtaining the number of wirings between boards based on a set of block names stored in each block information unit 2020. This method is used when designing a floor plan or the like for which a detailed wiring route of the semiconductor integrated circuit device has not yet been determined.

Another method is used at the time of layout design or the like in which a detailed wiring route is determined.
In this method, the number of wiring components existing on the integrated circuit board 201 is considered based on the 940 and the wiring component information unit 2030. More specifically, for each wiring component on the integrated circuit board 201, both ends are 0 for those connected to a terminal of a functional block which is a component on the integrated circuit board 201 or another wiring component, and only one end. Is assigned to each value of 1 for those connected to the component, and 2 for those not connected to the component at both ends,
The sum is defined as the number of wires between the integrated circuit boards.

Subsequently, the number of usable board terminals and the number of wires between the boards are compared. If the number of wires of the latter is smaller than the number of board terminals of the former, the execution is terminated. Proceed to 1414 (processing step 141
3). In processing step 1414, the control device 1407 is notified of the constraint violation and the execution is terminated. After that, the control device 1407 may notify the design worker of a caution for urging a design change or advice of correction via the display device 1405 or the like. Thus, every time the integrated circuit board is modified, the design constraint between the boards can be evaluated.

As described above, according to the eighteenth aspect of the present invention,
According to the invention according to claim 19 and claim 20, in conjunction with a design change that occurs when deciding on which substrate the functional block is to be arranged during floor plan design or layout design, Since it is evaluated whether the number of wires between the boards satisfies the restriction on the number of usable board terminals, manufacturability can be confirmed at an early stage. It is also possible to immediately notify the design worker via a display device or the like.

(Embodiment 6) In a sixth embodiment of the present invention, a COC-type multi-chip module composed of two integrated circuit substrates is obtained by combining the inventions of claims 1 to 20. How to design integrated circuits, especially
An example of a method of allocating functional blocks to the two integrated circuit boards and determining their arrangement positions will be described.

FIG. 15 shows an example of the semiconductor integrated circuit.
In FIG. 15, reference numeral 1501 denotes a first integrated circuit substrate;
Reference numeral 2 denotes a second integrated circuit board, and reference numerals 1503 to 1509 denote functional blocks. Now, it is assumed that the respective functional blocks are distributed and placed on the integrated circuit boards 1501 and 1502 as an initial arrangement.

Now, the functional blocks on the substrate 1501 and the substrate 1502
When there is a direct connection relationship with the above function block,
By using the invention according to claims 10 to 14, for example, FIG.
A screen as shown in FIG. 6 can be displayed. FIG. 16A is an example in which ratsnest related to the function block 1503 is displayed, and reference numeral 1601 denotes a function block 1504 on the integrated circuit board 1501.
Rats nest between 1 and 1506, 1602 is an integrated circuit board
Rat nest between the function block 1509 on 1502. At the same time, a dummy block 1510 of the functional block 1509 having the same arrangement position and shape on the integrated circuit board 1502 is displayed on the integrated circuit board 1501. Similarly, FIG.
(b) is an example in which ratsnest related to the function block 1508 is displayed, 1603 is a ratsnest between the function blocks 1507 and 1509 on the integrated circuit board 1502, and 1604 is a function block 1506 on the integrated circuit board 1501. It is ratsnest between. Reference numeral 1511 denotes a dummy block of the functional block 1506. At this time, ratsnest 1601 and 1603 and ratsnest 16
By changing the color between 02 and 1604, the designer can immediately visually understand the relationship between the functional blocks.

From the display results of the ratsnests between the substrates and in the substrates, for example, the number of wirings between the substrates, the length of the critical path, and the like are used to judge each integrated circuit substrate 1501, 15
It is necessary to change the distribution of functional blocks to 02,
Consider the case where the function blocks 1506 and 1509 are moved to another integrated circuit board, respectively.

At this time, FIG. 17 shows the result of moving these functional blocks between the integrated circuit boards by using the invention according to claim 2 or claim 7. Immediately thereafter, using the invention according to claims 18 to 20, it is confirmed that the result of the movement of the functional blocks between the integrated circuit boards does not violate the design constraint conditions between the integrated circuit boards.

Subsequently, after the functional blocks in each integrated circuit board are appropriately rearranged by using a conventional design support device or the like, if the invention according to claim 3 or 8 is used, the inter-board Since the functional blocks can be aligned, the final arrangement of the functional blocks can be determined in consideration of the arrangement positions of the functional blocks on the other integrated circuit board. FIG.
Shows each integrated circuit board after the arrangement is determined.

As described above, claims 1 and 2
The use of up to zero combinations of the present invention allows the integrated circuit device to be designed smoothly, interactively and accurately.

[0138]

According to the present invention, when designing an integrated circuit of a COC type multichip module comprising two integrated circuit boards, the floor plan diagram and Since the layout diagram is displayed, the relationship between these boards can be easily understood visually.

[0139] In addition, movement of functional blocks between substrates, alignment of functional blocks, display of ratsnest between substrates, enlargement and reduction of display diagrams interlocked between substrates, display of wiring routes between substrates, etc. To provide editing functions,
The parallel design of two substrates becomes possible, and the design work and repair work can be simplified and made more efficient.

Further, since the evaluation of the conformity to the design constraint between the boards can be confirmed in the process of performing the editing work, the feasibility of the integrated circuit can be determined at an early stage, and as a result, the number of design reworks And the design period can be shortened.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a hardware configuration diagram of a first embodiment of a semiconductor integrated circuit design support apparatus according to the present invention;

FIG. 2 illustrates an example of a semiconductor integrated circuit device.

FIG. 3 is a diagram showing an example of a design flow of a semiconductor integrated circuit device;

FIG. 4 is a diagram showing an example of execution of processing for moving a functional block according to the first embodiment;

FIG. 5 is a diagram showing an example of execution of a side-by-side processing of functional blocks according to the first embodiment;

FIG. 6 is a diagram showing an example of a hardware configuration diagram of a semiconductor integrated circuit design support apparatus according to a second embodiment of the present invention;

FIG. 7 is a diagram showing an example of execution of a process for enlarging a display diagram in the second embodiment.

FIG. 8 is a diagram showing an execution example of a function block moving process according to the second embodiment;

FIG. 9 is a diagram showing an execution example of a side-by-side alignment process of functional blocks according to the second embodiment;

FIG. 10 is a diagram showing an example of a hardware configuration diagram of a third embodiment of a semiconductor integrated circuit design support apparatus according to the present invention;

FIG. 11 is a diagram showing a display example of ratsnest between substrates according to the third embodiment.

FIG. 12 is a diagram illustrating an example of a hardware configuration diagram of a semiconductor integrated circuit design support apparatus according to a fourth embodiment of the present invention;

FIG. 13 is a diagram showing a display example of a wiring path between substrates in the fourth embodiment.

14A is a diagram illustrating an example of a hardware configuration diagram of a fifth embodiment of a semiconductor integrated circuit design support device according to the present invention. FIG. 14B is a diagram illustrating an example of a processing flow of a constraint evaluation device according to a fifth embodiment. Figure

FIG. 15 illustrates an example of a semiconductor integrated circuit device in Embodiment 6.

FIG. 16 is a diagram illustrating an example of execution of a rats nest display process according to the sixth embodiment.

FIG. 17 is a diagram illustrating an example of execution of a movement process according to the sixth embodiment.

FIG. 18 is a diagram illustrating an example of an editing result of the semiconductor integrated circuit device according to the sixth embodiment.

FIG. 19 illustrates a configuration example of a main storage device.

FIG. 20 illustrates a configuration example of a secondary storage device according to the first embodiment.

FIG. 21 illustrates a configuration example of a secondary storage device according to the second embodiment.

FIG. 22 is a diagram showing an example of a hardware configuration diagram of a conventional semiconductor integrated circuit design support apparatus.

FIG. 23 is a diagram showing an example of a conventional design flow of a semiconductor integrated circuit.

[Explanation of symbols]

 Reference Signs List 101 input device 102 main storage device 103 first secondary storage device 104 second secondary storage device 105 display device 106 associating device 107 display switching device 108 control device 601 input device 602 main storage device 603 first secondary storage device 604 second secondary storage Device 605 Multi-screen display device 606 Association device 607 Coordinate management device 608 Control device 1001 Input device 1002 Main storage device 1003 First secondary storage device 1004 Second secondary storage device 1005 Display device 1006 Related block extraction device 1007 Coordinate management device 1008 Other substrate Block display control device 1009 Rats nest display control device in substrate 1010 Rats nest display control device between substrates 1011 Control device 1201 Input device 1202 Main storage device 1203 First secondary storage device 1204 Second secondary storage device 12 5 display 1206 inter-substrate wire extractor 1207 lines display control unit 1208 control unit 1401 input unit 1402 main memory 1403 first secondary storage device 1404 second secondary storage device 1405 display device 1406 constraint evaluation device 1407 controller

Claims (20)

[Claims] 1. An integrated circuit comprising two integrated circuit boards, comprising: a first integrated circuit board having a structure capable of terminal connection with another integrated circuit; and a structure capable of terminal connection with another integrated circuit. At least an input device, a storage device, a display device, and a control device are used to determine a floor plan and a layout of a circuit in which two integrated circuit substrates of a second integrated circuit substrate are connected to each other to form one integrated circuit. A design support apparatus provided, wherein the control device controls a positional relationship of terminal connection between the first integrated circuit board and the second integrated circuit board, and the control apparatus responds to a designation from the input device. A design support apparatus for a semiconductor integrated circuit, wherein a floor plan diagram and a layout diagram of an integrated circuit substrate are displayed on the display device. 2. The input for selecting one or more functional blocks from a group of functional blocks constituting one integrated circuit board between the first integrated circuit board and the second integrated circuit board. Device and this selected function block
2. The semiconductor integrated circuit design support device according to claim 1, further comprising: the control device for moving the device onto the other integrated circuit board while managing the arrangement position thereof. 3. An arbitrary function block on one of the integrated circuit boards and an arbitrary function on the other integrated circuit board between the first integrated circuit board and the second integrated circuit board. The input device capable of selecting one side of the block; and the function block being mounted on an integrated circuit board on which the selected function block is mounted so that the X coordinate value or the Y coordinate value of the selected function block coincides with each other. 2. The design support apparatus for a semiconductor integrated circuit according to claim 1, further comprising: the control unit configured to move the semiconductor integrated circuit. 4. An integrated circuit comprising two integrated circuit boards, a first integrated circuit board having a structure capable of terminal connection with another integrated circuit, and a structure capable of terminal connection with another integrated circuit. A design support apparatus for determining a floor plan and a layout of a circuit that connects two integrated circuit boards of a second integrated circuit board to form an integrated circuit, and an input device such as a keyboard and a mouse; A storage device for storing design data of the integrated circuit and substrate data of each of the integrated circuit boards; a display device such as a CRT; and a logical position relationship for connecting the terminals between the two integrated circuit substrates. An association device for performing attachment, a display switching device for switching the board data acquired in accordance with a designation from the input device, and a control device for controlling the execution of these. Based on the contents of the storage device that stores the positional relationship of terminal connection between the first integrated circuit substrate and the second integrated circuit substrate, the associating device sets the coordinate positions sequentially corresponding to the change in the positional relationship. While performing management, the display switching device selects necessary data in accordance with the designation from the input device, so that a floor plan diagram or a layout diagram of the integrated circuit board can be displayed on the display device based on the positional relationship. A design support device for a semiconductor integrated circuit, which is displayed above. 5. An integrated circuit comprising two integrated circuit boards, a first integrated circuit board having a structure capable of terminal connection with another integrated circuit, and a structure capable of terminal connection with another integrated circuit. At least an input device, a storage device, a display device, and a control device are used to determine a floor plan and a layout of a circuit in which two integrated circuit substrates of a second integrated circuit substrate are connected to each other to form one integrated circuit. A design support device comprising: a display device having at least two display screens, wherein the control device manages a positional relationship where terminals are connected between the first integrated circuit board and the second integrated circuit board. A design support apparatus for a semiconductor integrated circuit, wherein design drawings of a floor plan diagram and a layout diagram of each of the integrated circuit boards are simultaneously displayed on separate display screens on the display device. 6. A state in which the design drawings of the first integrated circuit board and the second integrated circuit board are displayed on a first display screen and a second display screen of the display device, and When the design drawing displayed on the display screen is enlarged or reduced, the design drawing displayed on the other display screen is interlocked with the function to enlarge or reduce the display. 6. A design support apparatus for a semiconductor integrated circuit according to claim 5. 7. The method according to claim 1, wherein the first screen is displayed on the display screen.
Between the design drawings of the integrated circuit board and the second integrated circuit board, one or more function blocks can be selected from a group of function blocks constituting one integrated circuit board via the design drawing. 6. The input device according to claim 5, further comprising: an input device; and the control device configured to move the selected functional block onto a design drawing of the other integrated circuit board while managing its arrangement position. Semiconductor integrated circuit design support device. 8. The first screen displayed on the display screen.
Between the design drawings of the integrated circuit board and the second integrated circuit board, one side of an arbitrary functional block on one integrated circuit board and an arbitrary side on the other integrated circuit board via the design drawing. An input device that can select one side of a functional block; and an integrated circuit board on which the functional block is mounted so that the X-coordinate value or the Y-coordinate value of the selected functional block matches each other. 6. The apparatus according to claim 5, further comprising: the control device configured to move the control device. 9. An integrated circuit comprising two integrated circuit boards, a first integrated circuit board having a structure capable of terminal connection with another integrated circuit, and a structure capable of terminal connection with another integrated circuit. A design support apparatus for determining a floor plan and a layout of a circuit that connects two integrated circuit boards of a second integrated circuit board to form an integrated circuit, and an input device such as a keyboard and a mouse; A storage device for storing design data of the integrated circuit and substrate data of each integrated circuit board; a multi-screen display device capable of displaying a multi-screen having a common coordinate system with others on a CRT or the like; An associating device for performing a logical association between the integrated circuit boards, and a display position of a design screen of each integrated circuit board based on a coordinate system preset on each display screen on the multi-screen display device. A coordinate management device for managing the first integrated circuit board and the second integrated circuit, wherein the display device has at least two display screens; The coordinate management device manages the positional relationship of terminal connection with the substrate, and simultaneously displays the design drawings of the floor plan diagram and the layout diagram of each of the integrated circuit substrates on separate display screens on the multi-screen display device. A design support apparatus for a semiconductor integrated circuit, comprising: 10. An integrated circuit comprising two integrated circuit boards, a first integrated circuit board having a structure connectable to another integrated circuit and a terminal having a structure connectable to another integrated circuit. At least an input device, a storage device, a display device, and a control device are provided for connecting two integrated circuit substrates of the two integrated circuit terminals to terminals and determining a floor plan and a layout of a circuit as one integrated circuit. A design support device, wherein the display device displays an auxiliary line visually indicating a connection relationship between functional blocks constituting the first integrated circuit board and the second integrated circuit board on the display device. Searching for a function block in the other integrated circuit board which has a logically direct connection relationship with a designated function block in one of the integrated circuit boards indicated by A function of displaying on the one integrated circuit board while managing the shape and arrangement position of the lock, and displaying the auxiliary line between the displayed function block and the specified function block. Support device for designing semiconductor integrated circuits. 11. When the auxiliary line indicating the connection relationship between the function block on the first integrated circuit board and the function block on the second integrated circuit board is displayed on the display device, 11. The display apparatus according to claim 10, further comprising a function of displaying the auxiliary line by changing a display method from the auxiliary line indicating a connection relationship between functional blocks in the same integrated circuit board.
3. A design support device for a semiconductor integrated circuit according to claim 1. 12. An auxiliary line representing a connection relationship between functional blocks on the different integrated circuit substrate is displayed in a different color from an auxiliary line representing a connection relationship between functional blocks on the same integrated circuit substrate. The design support apparatus for a semiconductor integrated circuit according to claim 11, wherein: 13. An auxiliary line representing a connection relationship between functional blocks on the different integrated circuit boards is referred to as an auxiliary line representing a connection relationship between functional blocks on the same integrated circuit board. The display is changed and displayed.
3. A design support device for a semiconductor integrated circuit according to claim 1. 14. An integrated circuit comprising two integrated circuit boards, a first integrated circuit board having a structure capable of terminal connection with another integrated circuit, and a structure capable of terminal connection with another integrated circuit. A design support apparatus for determining a floor plan and a layout of a circuit that connects two integrated circuit boards of a second integrated circuit board to form an integrated circuit, and an input device such as a keyboard and a mouse; A storage device for storing design data of the integrated circuit and substrate data of each integrated circuit board; a display device such as a CRT; and a related block for acquiring a functional block group having a direct connection relationship with a designated functional block An extraction device; a coordinate management device that manages display positions of the two integrated circuit boards on the display device; and the functional blocks acquired by the related block extraction device Other board block that acquires information of a function block on another integrated circuit board that is not present on the integrated circuit board on which the designated function block exists in the group, and displays the information on the display device based on the information. A display control device; and generating and displaying a ratsnest between the designated functional block and the functional block group present on the integrated circuit board in which the designated functional block is located in the functional block group obtained by the related block extracting device. A rat nest display control device within the board, and the designated function block in the function block group obtained by the related block extraction device, and the other integrated circuit board which does not exist on the integrated circuit board on which the designated function block exists. An inter-substrate ratsnest display control device for generating and displaying a ratsnest between the functional blocks, a control device for controlling the execution thereof, When displaying a rats nest, which is an auxiliary line, which visually indicates the connection relationship between the functional blocks constituting the first integrated circuit board and the second integrated circuit board on the display device, The relation block extraction device searches for a function block in the other integrated circuit board which has a logically direct connection relationship with a designated function block in one of the integrated circuit boards being displayed, and the searched function block The other substrate block display control device displays on the one integrated circuit substrate while the coordinate management device manages the shape and the arrangement position of, and between the displayed function block and the designated function block. An inter-board ratsnest display control device displays a ratsnest, and displays a ratsnest between the functional block in the one integrated circuit board and the designated functional block. Design support apparatus for a semiconductor integrated circuit, characterized in that said substrate ratsnest display control apparatus to display a rat's nest for. 15. An integrated circuit comprising two integrated circuit boards, a first integrated circuit board having a structure capable of terminal connection with another integrated circuit, and a first integrated circuit board having a structure capable of terminal connection with another integrated circuit. In order to determine the floor plan and layout of a circuit that forms one integrated circuit by connecting terminals of two integrated circuit boards of two integrated circuit boards, at least a display device, an input device, a storage device, and a control device are provided. A design support apparatus, wherein when a board-to-board wiring exists between the first integrated circuit board and the second integrated circuit board, a wiring path of the board-to-board wiring and a board A design support apparatus for a semiconductor integrated circuit, having a function of visually indicating and displaying an upper wiring terminal. 16. The inter-substrate wiring and the intra-substrate wiring when the inter-substrate wiring and the intra-substrate wiring whose wiring is completed only within the substrate of each of the integrated circuit substrates are present on the integrated circuit substrate. A means for displaying only the inter-substrate wiring, and a means for displaying only the intra-substrate wiring, and wherein the integrated circuit is provided in accordance with designation of the display means from the input device. 16. The design support apparatus for a semiconductor integrated circuit according to claim 15, wherein a display method of a wiring on a board diagram is changed. 17. An integrated circuit comprising two integrated circuit boards, a first integrated circuit board having a structure capable of terminal connection with another integrated circuit, and a structure capable of terminal connection with another integrated circuit. A design support apparatus for determining a floor plan and a layout of a circuit that connects two integrated circuit boards of a second integrated circuit board to form an integrated circuit, and an input device such as a keyboard and a mouse; A storage device for storing design data of the integrated circuit and substrate data of each of the integrated circuit boards; a display device such as a CRT; and connecting between functional blocks of the two integrated circuit boards via terminals on the substrates. An inter-substrate wiring extraction device for washing out the existing wiring; a wiring display control device for displaying the inter-substrate wiring obtained by the inter-substrate wiring extraction device on each of the integrated circuit board diagrams; A control device for controlling a row, wherein the inter-substrate wiring extracting device finds all the inter-substrate wiring between the first integrated circuit substrate and the second integrated circuit substrate, A wiring path of the inter-substrate wiring and a wiring terminal on the substrate, wherein the wiring display control device visually and clearly displays the inter-substrate wiring on each of the integrated circuit board diagrams, Design support equipment. 18. An integrated circuit including two integrated circuit boards, a first integrated circuit board having a structure capable of terminal connection with another integrated circuit, and a first integrated circuit board having a structure capable of terminal connection with another integrated circuit. In order to determine the floor plan and layout of a circuit that forms one integrated circuit by connecting terminals of two integrated circuit boards of two integrated circuit boards, at least a display device, an input device, a storage device, and a control device are provided. A design support device, wherein when the configuration or shape of the integrated circuit board is changed by moving a functional block between the first integrated circuit board and the second integrated circuit board, A means for comparing the number of inter-substrate wiring determined by the assignment of the functional blocks to the circuit board and the number of substrate terminals determined by the size of the integrated circuit substrate to evaluate design constraints; Design support apparatus for a semiconductor integrated circuit according to symptoms. 19. The apparatus according to claim 18, further comprising means for displaying a result of comparing the number of the inter-substrate wirings with the number of the substrate terminals on the display device. 20. An integrated circuit comprising two integrated circuit boards, a first integrated circuit board having a structure capable of terminal connection with another integrated circuit, and a structure capable of terminal connection with another integrated circuit. A design support apparatus for determining a floor plan and a layout of a circuit that connects two integrated circuit boards of a second integrated circuit board to form an integrated circuit, and an input device such as a keyboard and a mouse; A storage device for storing design data of the integrated circuit and substrate data of each integrated circuit board; a display device such as a CRT; a constraint evaluation device for evaluating design constraints between the two integrated circuit substrates; A control device for controlling the configuration and shape of the integrated circuit board by moving a function block between the first integrated circuit board and the second integrated circuit board. Then, the control device causes the constraint evaluation device to calculate the number of inter-substrate wiring determined by the assignment of the functional blocks to each of the integrated circuit substrates and the number of substrate terminals determined by the size of the integrated circuit substrate. A design support device for a semiconductor integrated circuit, comprising means for evaluating design constraints by causing the calculation results to be compared.