TWI226580B - Method of power source design rule checking for line width and conducting hole number of circuit layout - Google Patents

Abstract

The present invention is related to a method of power source design rule checking for the line width and the conducting hole number of circuit layout. In the invented method, a detecting procedure is set in a circuit layout software such that it is capable of detecting whether each power source connecting pin or the conducting hole disposed on the circuit layout plot fulfills the power source design rule when the detecting procedure is conducted. In addition, an erroneous mark can be generated at the position where the power source design rule is not satisfied. Thus, the erroneous mark can be used as the basis for correcting the circuit layout plot.

Description

1226580

The technical field to which the invention belongs: The present invention relates to a method for detecting a circuit layout diagram. A circuit test software is added to the circuit layout software. # 'The detection program circuit layout diagram of power pins or vias, whether Electric rules, and _wrongs. Will be generated at locations that do not meet the design rules of the power supply, so that the layout planner or designer can easily check out the circuit layout symbol; Repeated inspection by the designer, ": A rule of detection-a method to detect whether the line width and the number of vias in the circuit layout chart meet the design requirements of the power supply. Previous technology: Press, the current electronic design of printed circuit boards ( Printed printed circuit boards have specific functions or functions in addition to the mutual supply between various electronic components. It is made of a single-sided printed material that cannot be bent (conductor pattern). The circuit of the electrical + components on the circuit board adds new functions. In order to solve the above-mentioned problems, a circuit board (abbreviated as pcb) is installed to install various electronic components. Outside the component, its main function is to provide a Z-current connection to produce the circuit board of the electronic device. It is insulated and insulated, and has a plurality of wires or wiring on its surface. The wires are provided for printing. Electrical connection, but nowadays, as electronic devices continue to brush circuit boards, wiring is becoming more and more complicated, and single-sided printed circuit boards need to be used.

1226580 V. Description of the invention (2) A '---- (Double-Slded Boards) and Multi-Uyer Boards, where the double-sided board has wires and vias (v 丨 &) on both sides, The via is a small hole that is filled or coated with metal on the printed circuit board and is used to connect the wires on both sides. Because the area of the double-sided board is double that of the single-sided board, and the wires can be staggered (can be wound to the other side), the double-sided board is more suitable for complex circuits. In order to increase the area that can be wired, the multilayer board f is provided with several double-sided boards, and an insulating board is placed between each double-sided board. The number of layers of the multilayer board represents several layers. Independent wiring layers, usually with an even number of layers, and include the two outermost layers. However, if you only want to connect some of the circuits in the multilayer board, the vias may waste some other layers of circuit space. Therefore, in order to avoid this problem, buried vias and blind vias (Biind ▽ "" technology Penetrating through several of these layers, where the blind hole technology connects several layers of internal printed circuit boards to the surface printed circuit board 'does not need to penetrate the entire board, while buried holes connect only the internal printed circuit board' so only from the surface It cannot be seen. Furthermore, 'Every time you design a circuit diagram of a circuit board, you must meet a set of requirements, such as: the minimum reserved space between wires, the minimum wire width, and other similar practical restrictions. Due to the speed of the circuit, the strength of the transmission signal, the sensitivity of the circuit to power consumption and noise, and the quality of materials and manufacturing equipment are different. For example: the current strength increases, then the thickness of the wire must also be increased. According to the above The circuit diagram of the wiring design of today's printed circuit boards (especially multilayer boards) has become quite complicated, so it will not be easy to implement Make a

1226580 V. Description of the invention (3) For a sample printed circuit board, whether the line design meets human requirements = manual ^ method 'It is also difficult to confirm that the cloth can be printed in the printed circuit:;: as a circuit diagram from the design guarantee _ positive * operation, Now the general design of circuit design circuit design ° software 1: engineers, engineers (hereinafter referred to as the designer), most use-electricity (as shown in Figure 2); CU = er) to draw-circuit diagram, and can benefit β # The body can read the various functions provided by the circuit design and operation. The circuit design diagram = H to check the designed circuit design. ^ Can the design language be reached: The circuit layout staff (hereinafter referred to as the layout operator) ) ， Each electron ^. Circuit layout software, which automatically converts the circuit software about the circuit design diagram, layout ^ 'But because the circuit cloth master or the line is connected to another, because of n, line, line robe > + each other The state of the father ’s circuit. If you use this circuit to protect the moon and the moon, you ca n’t achieve the design of the circuit design. You can use the circuit layout software for the circuit. π A, once again, the old road is configured, so that m is intertwined to draw into the actual layout. After the layout is completed, it must be re-centered. When the actual thunder and thunder circuit design Various regulations, such as 1 Γ power supply pin 々 Some thicker wires = larger locomotive, so that the power supply pin must be < green see, or how many power supply pins must be Only make

Page 1226580 Description of the invention (4) ___ The power transmission output from the power supply pin is a layout that cannot be responded to immediately or directly to another layer. These decisions must be confirmed by the designer before proceeding. ^ Change the actual layout diagram. When the actual layout diagram is modified, the following will happen. After the cloth (1) has a thick line width, it will cause problems with other adjacent roads. J. In one (2), it is impossible to add a via hole around the power pin, so that the layout designer needs to adjust the actual layout diagram to move the position of other electronic components, which greatly increases the time required for the diagram to complete the circuit board. Will be postponed, especially I = Bei, = Bureau failed to place all the wrong positions on the actual layout at one time ^ = Out of the right 5 and 50: j are constantly modified, which is in the circuit layout staff and design ": : Second, the time delay for the completion of the design of the auxiliary circuit board makes it impossible to produce the product using the circuit board at the expected time, which makes the product lose its competitiveness due to time delay. Do it yourself The question of whether the consistent layout diagram meets the circuit design requirements and directly modify the actual layout diagram. After long-term research and experiment, the inventor finally developed and designed a method to detect whether the line width and the number of vias of the circuit layout diagram of the present invention The method that meets the requirements of power supply design is to have a detection program in a circuit layout software. The detection program can detect whether each power pin or via set on a circuit layout diagram meets the power supply design rules. Can be used in locations that do not meet power design rules

Page 7 1226580 V. Description of the invention (5) In this way, “the error mark can be used as a basis for generating an error mark and modifying the layout of the error mark”. Set d ΐ Inspectors can explain the purpose, shape and structure of the present invention in detail, such as:... I understand the implementation method of the following examples: No symbol ir month is a method to detect the line width and the number of vias in the circuit layout chart. The method is specified in c. See Figures 1, 2, and 3, There is a detection program 10 in the electrical circuit layout software 1. The layout software 1 converts a circuit design diagram 20 and configures it into an electrical A Fill diagram 12 and then executes the detection procedure 10 to the right. Test whether the power supply pins 120 or the vias 122 on the circuit layout diagram 12 meet the power supply design rules. If the power supply pins 120 or the vias 122 do not meet the power supply design rules', then each power supply pin 1 2 0 or conductive At the position of hole 1 2 2, an error mark = 11 is generated (as shown in Figure 5). In this way, the layout operator can directly mark the mark. Modifications have been made to quickly complete the correct circuit layout. In the present invention, the circuit design diagram 20 is drawn by using a circuit design software 2. The circuit design software 2 is provided with an attribute setting program 22, which can be used by a designer to design the circuit diagram. At least one of the power pin (POWER PIN) 24 or via hole (VIA) of 20 is marked with a current value of 26, and an attribute comparison table 14 is also provided in the circuit layout software j. The attribute comparison Table 1 4 is determined according to the power supply design rules. The power supply design rules include the thickness of various current values. Page 8 1226580 V. Description of the invention (6) " 一 '' ------ ΐΐϊ and How many vias are transmitted, the electrical meter_ is converted by the circuit layout software 1 and configured into a circuit layout diagram 12, the circuit layout software 1 can be based on the current value on the circuit design diagram 20, The attribute comparison table 14 looks for a matching power supply design rule, and generates an attribute report file 3 corresponding to one of the power supply design rules for each of the power supply pins 120 or vias 22, so the layout planner can also list the contents listed in the attribute report block 3. , The path layout view of FIG. 12 f, to confirm that the circuit layout of FIG respective power supply pins 12 or Shu 2〇 vias 122, whether the power supply design rules. In a preferred embodiment of the present invention, please refer to FIG. 丨 and FIG. 6. After the detection program 10 is executed, the circuit layout software i can generate a detection menu 16 and the price measurement menu 16 Including a plurality of detection modes 18 and the seven, the comparison table 1 4 and the attribute comparison table 1 4 provide the layout planer to define the corresponding line width and the number of vias for various electrical versions, and the detection mode 1 8 The detection program 10 can be set, which detects the whole circuit layout diagram 12, one of the circuit layers or the designated area 1 and 3, and the designated area 丨 3 is the coordinates Ul, Yl on the 3 and 4) , (Χ2, Υ2), (χ3, γ3), and (χ4, γ4), or the area between the coordinates (^ 1) and (^) on Figure 5, regardless of which detection is performed In mode 18, the detection program 丨 〇 uses this attribute to know, Table 1 4 to detect whether each power pin labeled with a current value 丨 2 〇 or the position of the through hole 1 2 2 conforms to this attribute comparison The definition in Table 丨 4, and where the attribute does not match the definition in Table 14, the error mark η is generated (as shown in Figures 4 and 5), and the error Note 11 of each line may be the line Shu power pin 12〇 or vias 122 connect the line 24 to the right of the line is different from the color representation. In order to understand how the detection mode 18 is

Page 9 1226580 V. Description of the invention (7) The position of the through hole 1 2 2 is used for detection. The following will use the specified area detection mode 1 8 for description. Please refer to Figure 7: (7 0 1) First, the detection mode 1 8 requires that one of the power supply pins 120 or the vias 122 in the circuit layout shown in FIG. 12 be selected; (7 0 2) 嗣, the detection mode 丨 8 indicates the power supply pin 丨20 or the area where the via 122 is connected to the line 124; (7 0 3) The circuit layout software 1 then finds the matching power supply design from Table 1 4 according to the current value on the circuit design diagram 2 0 according to the property. Rules; (7 〇) 俟, use the power supply design rules corresponding to the current value to determine whether the power supply pins 1 2 0 or vias 1 2 2 connected lines 1 2 4 meet the power supply design rules' if it is carried out Step (7 05), otherwise proceed to step (70 6); (7 05) end the detection mode; (7 0 6) That is, an error mark 11 is generated at a position that does not meet the power supply design rule. It can be known from the above that the designer only needs to design the power supply pins 24 or vias of FIG. 2 in the circuit, and correctly indicate the current value, and provide the power supply design rules to the layout person to define the attribute comparison table. The circuit layout software 1 can use the attribute comparison table 14 to determine whether each power pin 丨 20 or the via 1 2 2 has met the power supply design rules, so that the layout planner's completed circuit layout diagram 1 2 It is no longer necessary to ask the designer to confirm whether there is any non-compliance with the power supply design requirements. In order to understand more clearly how the circuit layout software 1 and circuit design software 2 are used in conjunction with each other when this case is actually implemented, the following is based on the actual situation.

Page 1226580 V. Description of the invention (8) The steps of implementation-for description, please refer to Figure 8 (8 0 1). First, establish the attribute comparison table 14 in the circuit layout software 1; (8 0 2) 嗣, at the position of the power supply pin 24 or via hole of the circuit design diagram 2 drawn by the circuit design software 2, respectively, a current value is marked; (80 0) 嗣, the circuit layout software 1 can be based on the current value in the circuit design diagram 2 0, from the attribute comparison table 丨 4 to find the matching power supply design rules' and generate each power supply pin 1 2 0 or through hole 1 2 2 corresponding to the power supply design rules An attribute report file 3;

(8 0 4) 俟, when the detection program 10 is executed, the detection program 丨 〇 first generates a detection menu 16; (80 0) Finally, read the detection menu 6 The selected detection mode 1 8 ′ is used to detect whether the position of each power pin 1 2 0 or the through hole 1 2 2 marked with the current value conforms to the attribute comparison table according to the selected detection mode 丨 8. 1 4 is defined, and an error mark 1 1 is generated at a place that does not meet the definition of the attribute comparison table 4.

In summary, 'when the designer draws the circuit design diagram 20 using the circuit design software 2', if it is at the position of each power supply pin 24 or via hole of the circuit design diagram 20, it is marked separately A current value can be used in the circuit layout software 1 to use the detection program 1 〇, the circuit layout diagram 丨 2 marked each power pin that does not meet the power supply design rules 丨 2 〇 or via 丨 2 2 For the convenience of the layouter or designer to check out the circuit layout diagram 2 2 The location that does not comply with the power supply design rules, or the designer does not need to repeat the inspection, so that the layoutter cannot confirm the actual situation Layout drawing 12

Page 11 1226580 V. Description of the invention (9) Whether the circuit design requirements are met. According to the above, it is only one of the best specific embodiments of the present invention, but the structural features of the present invention are not limited to this. Any person skilled in the art can easily think of changes or modifications in the field of the present invention. , Can be covered by the patent scope of this case.

Page 1226580 Brief description of the drawings Brief description of the drawings: Figure 1 is a schematic diagram of the mutual cooperation of the circuit layout software and circuit design software of the present invention; Figure 2 is a schematic diagram of the circuit design diagram of the present invention; Figure 2 is a schematic diagram of the correct circuit layout; Figure 4 is a schematic diagram of the incorrect circuit layout of Figure 2 '; a diagram of the unpredictable menu of the incorrect circuit layout; the flow layout software and circuit in the detection mode of a fixed area The design software phase diagram is another diagram of the second diagram. The sixth diagram is an investigation of the present invention. The seventh diagram is a finger diagram of the present invention. The eighth diagram is a flowchart of the electrical interaction of the present invention. Representative symbols of the main parts: Circuit layout software ... 1 Error mark ......... 11 Designated area ......... 13 Detection menu ... .... 16 Power supply pin ............ 120. Circuit ... 124 Circuit design Figure ......... 20 Current value ......... 26 Detection program ... 10 Circuit layout ... ....... 12 Attribute Comparison Table ...... 14 Detection Mode ......... 18 24 Vias ... ..... 122 Circuit design software ... 2 Property setting procedure ... 2 2 Property report file ... 3

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Claims (1)

1226580 VI. Scope of patent application1. A method for detecting whether the line width and the number of vias of a circuit layout match people: η method, the Hai method is built in a circuit layout software; Convert and configure a circuit design diagram into-circuit layout diagram & 'If the test program is executed, the circuit layout software will process according to the following steps: First, detect each power pin or conduction on the circuit layout diagram Whether the location of the hole meets the power supply design rules; If the positions of the power pins or vias on the right circuit layout do not comply with the power supply design rules, an error mark is generated at the positions of the power pins or vias that do not meet the power design rules. "2. The method described in item 1 of the scope of patent application, wherein the circuit layout software also has an attribute comparison table, which is determined according to the power supply design rules, which includes various current values. Yes ^ what thickness of the line width and the number of vias are transmitted; and the circuit design diagram is made using a circuit design software 'The circuit design software is provided with an attribute setting program, and the attribute setting program is available for The designer indicates a current value at the position of at least one power pin or ^ through hole of the circuit design diagram; 俾 The circuit design diagram is converted and configured by the circuit layout software After a circuit layout diagram, the circuit layout soft system is processed according to the following steps: First, according to the current value on the circuit design diagram, the matching power supply design rule is found in the attribute comparison table; 嗣, according to the found Power supply design rules Page 14 1226580 __- ^ —------- VI. Scope of Patent Application " " '' '一 " " ——-Attribute report file of foot or ‘through-hole corresponding power supply design rule. 3, ^ The method described in item 2 of the patent application scope, wherein after the detection procedure ^ ^, the circuit layout soft system can generate a detection menu, and the detection $ list includes a plurality of detections. The mode and the attribute comparison table. The attribute table provides the layouter to define the corresponding line width and the number of vias for various currents, and the detection mode can set the detection procedure for the entire circuit layout. Map, one of the circuit layers or a specified area for detection. After the detection is specified, the detection mode will be followed for further processing. ~ 4 · The method as described in item 3 of the scope of patent application, wherein the detection mode is to detect the position of each power pin or via hole according to the following steps: First, 'the detection mode indicates the power supply. The area where the pin or via is connected to the line; a Then the circuit layout software looks for a matching power supply design rule from the attribute comparison table based on the current value on the circuit design diagram; 利用 'use the power supply corresponding to the current value Design rules to determine whether the lines connected to the power pins or vias conform to the power design rules; if the power design rules are not met, an error mark is generated at a location that does not meet the power design rules. 5 · The method described in item 2 of the scope of patent application, wherein the circuit cloth, software, and circuit design soft system are processed in accordance with the following steps to detect whether each power pin or via of the circuit layout diagram Comply with power supply design rules: — 1226580 6. Scope of patent application First, establish the attribute comparison table in the circuit layout software; 嗣, at the positions of the power pins or vias of the circuit design diagram drawn by the circuit design software, a current value is respectively marked;嗣 'The circuit layout soft system can find matching power supply design rules from the attribute comparison table based on the current value on the circuit design diagram, and generate an attribute report file corresponding to one of the power supply design rules for each power pin or via; Alas, when the detection procedure is executed, the detection procedure first generates a detection menu; Finally, read the selected detection mode on the detection menu to detect whether the position of each power pin or via marked with a current value conforms to the attribute comparison according to the selected detection mode. Table definition, and an error flag is generated where the attribute does not match the table definition. Page 16