TWM635008U - Printed circuit board circuit modification system, computer program product system with stored-program, and computer-readable recording medium system with stored-program - Google Patents

Abstract

A circuit modification system for a printed circuit board is used to solve the conventional problem that the circuit of a printed circuit board is corroded and affects electrical properties. It includes: a database for storing several wiring patterns and several characteristic conditions of each wiring pattern, the wiring pattern is composed of several circuit lines and several channel areas arranged in an interlaced manner, and the several characteristic conditions include the A first channel and a second channel in the channel area, the junction of the first channel and the second channel forms a corresponding concave fold and a sharp corner; and a processing module coupled to the database, The processing module searches for each of the recesses and each of the sharp corners of the circuit diagram of a printed circuit board according to each of the wiring patterns and several characteristic conditions, and the processing module fills each of the recesses with a triangular block Fold, and cut flat each of the sharp corners.

Description

Printed circuit board circuit modification system, computer program products with built-in programs System and computer-readable recording medium system with built-in program

This creation is about a process improvement technology for printed circuit boards, especially a circuit modification system for printed circuit boards, computer program products with built-in programs, and computers with built-in programs that increase the anti-corrosion ability of circuit patterns to improve the yield rate of circuit boards Recording media can be read.

In response to the development trend of miniaturization, light weight and high performance of electronic products, the circuit layout (Layout) technology of printed circuit boards must be able to complete products with high-density wiring and pattern line width refinement. After the pattern of the printed circuit board is completed, it needs to be made into a negative film, and then the circuit pattern is formed on the substrate through processes such as exposure, etching, and printing. However, the densely distributed and thinned line pattern will cause exposure blur, Process problems such as over-etching cause the difference between the final circuit pattern on the substrate and the initial design pattern to be too large, resulting in a defective product that does not meet the specifications.

The circuit pattern of the conventional printed circuit board is to form several channels between several lines. During the etching process, especially when the copper wire layer of the circuit board specification is thick (12 microns to 18 microns), the etching process will be prolonged. time, and the etchant is eroded at the turning point of each channel. If the width of each channel is inconsistent before and after the turning point, the flow rate of the etching solution passing through the turning point will change, which will lead to the transition of each channel. Corrosion reduces the area of the circuit pattern around the turning point. If the line width of the circuit is smaller than the circuit specification of the circuit board, it will affect the electrical function of the circuit board, and the circuit pattern has irregular missing blocks, which cannot pass the quality control. Reduce product yield. Even if the wiring engineer can widen the area of the circuit pattern at the turning point of each channel through computer-aided design (CAD) or computer-aided manufacturing (CAM) software when making the circuit pattern of the conventional printed circuit board, to offset the etching. However, due to the complicated and high-density circuits on conventional printed circuit boards, manually modifying the circuit pattern is prone to omissions, or the magnitude of modification is inconsistent, which leads to the circuit board circuit specifications after etching still not meeting the product requirements.

In view of this, it is known that there is still a need to improve the circuit modification of printed circuit boards that is conventionally carried out by manpower through computer aids.

In order to solve the above problems, the purpose of this creation is to provide a circuit modification system for printed circuit boards, which can automatically strengthen the erosion of wiring patterns caused by the etching process, so as to improve the product yield of printed circuit boards.

The second purpose of this creation is to provide a circuit modification system for printed circuit boards, which can automatically identify areas with strong erosion effects, and effectively modify and reinforce wiring patterns.

Another purpose of this invention is to provide a printed circuit board circuit modification system, which can automatically control the pattern reinforcement range to maintain the integrity and electrical function of the circuit pattern.

Another object of this invention is to provide a computer program product for modifying the circuit program of the printed circuit board, and a computer-readable recording medium for modifying the circuit program of the printed circuit board, which are used to execute the above system. It can reduce the manpower requirement for modifying the printed circuit board circuit, and also avoid the decrease of the yield rate of the etched circuit board caused by human error.

Directions or similar terms mentioned in the full text of this creation, such as "inner", "outer", "side", etc., mainly refer to the directions of the attached drawings, and each direction or similar terms are only used to assist in explaining and understanding The various embodiments of the creation are not intended to limit the creation.

The use of the quantifiers "one" or "one" in the elements and components described throughout this creation is only for convenience and to provide the usual meaning of the scope of this creation; it should be interpreted in this creation as including one or at least one, and a single The notion of also includes the plural, unless it clearly means other mean.

The "Computer Program Product" mentioned in the full text of this creation refers to things that contain computer-readable programs and are not limited to external forms, which can be understood by those with ordinary knowledge in the technical field to which this creation belongs.

The "Computer Readable Medium" mentioned in the full text of this creation refers to a carrier on which software is stored, and the software can be accessed by a computer; common ones include CD, hard disk, and USB portable media. Disks, various memory cards, cloud or virtual storage space, etc., are understood by those with ordinary knowledge in the technical field to which this creation belongs.

The circuit modification system of the printed circuit board of the present invention includes: a database for storing several wiring patterns and several characteristic conditions of each wiring pattern, the wiring pattern is arranged in a staggered manner by several circuit lines and several channel areas , the several characteristic conditions include a first channel and a second channel in the channel region, the width of the first channel is greater than the width of the second channel, and the junction of the first channel and the second channel forms an opposite A concave fold and a sharp corner; and a processing module coupled to the database, the processing module searches for each of the circuit diagrams of a printed circuit board according to each of the wiring patterns and several characteristic conditions For the concave fold and each of the sharp corners, the processing module fills each of the concave folds with triangular blocks, and cuts each of the sharp corners flat.

The circuit modification system of the printed circuit board of this creation includes: a database for storing several wiring patterns and several characteristic conditions of each wiring pattern. The wiring pattern is two curved and non-intersecting circuit lines and located between the The channel area between the circuit lines, the several characteristic conditions are that the channel area is connected to a second channel by a first channel through a curved section, and the width of the channel area is tapered from the first channel to the second channel ; and a processing module coupled to the database, the processing module searches for each of the curved sections of the circuit diagram of a printed circuit board according to each of the wiring patterns and several characteristic conditions thereof, the processing module according to the data A change condition forms a triangular block and an arc block extending from the apex of the triangle, thickening the circuit line outside the curved section, and modifying the curved section The width is greater than or equal to the width of the second channel.

The computer program product of this creation for modifying the circuit program of the printed circuit board, and the computer-readable recording medium for modifying the circuit program of the printed circuit board, the computer system loads the program and executes the above system; thus, The lifting system can be conveniently used, exchanged or implemented, and is conducive to the wide application of the above printed circuit board line modification system.

Accordingly, the printed circuit board circuit modification system, the computer program product with built-in program and the computer-readable recording medium with built-in program can automatically analyze and modify according to several characteristic conditions and several change conditions of the wiring pattern. The circuit pattern of the printed circuit board can make the etchant pass smoothly between the lines, and reserve the eroded area of the circuit pattern to avoid excessive etching from destroying the integrity and electrical functions of the circuit pattern, and can also reduce the modification of the printed circuit board The manpower requirement of the circuit has the effect of improving the product yield, reducing the manpower burden and maintaining the conductivity of the circuit.

Wherein, the junction of the first channel and the second channel forms a turning point, the outer side of the turning position is located at the recessed portion of the channel area, and the inner side of the turning position is located at the sharp corner of the circuit line. In this way, the processing module can identify the area of the circuit diagram that needs to be modified, which has the effect of improving the efficiency of wiring improvement.

Wherein, a first side of the triangular block is parallel to the first channel, and a second side is parallel to the second channel, the length of the first side is a first compensation thickness, and the length of the second side is A second compensation thickness is added to the width of the first channel, the first compensation thickness is 5 microns to 10 microns, and the second compensation thickness is 25 microns to 30 microns. In this way, the hypotenuse of the triangular block deviates to the second channel, which has the functions of guiding the etching solution and resisting erosion.

Wherein, a third channel is formed between the modified recessed portion and the sharp corner portion, the third channel communicates with the first channel and the second channel, and the width of the third channel is greater than or equal to the second channel the width. In this way, the width of the modified channel area changes from large to small, which can stabilize the flow rate of the etching solution during the etching process, and has the effect of avoiding irregular erosion.

Wherein, the changing conditions include a first reference line, a second reference line, a third compensation thickness, a first reference point and a second reference point, and the first reference line is from the second channel to The inner sideline of the curved section changes from a straight line to the starting position of a curve; the second reference line is the starting position where the outer sideline of the second channel to the curved section changes from a straight line to a curve; the first reference point is the The intersection point of the first reference line and the side line outside the channel area; from the intersection point of the second reference line and the side line outside the channel area, the position of moving the third compensation thickness inward along the second reference line is The second reference point and the third compensation thickness are 5 microns to 10 microns. In this way, the processing module can locate the starting position of the bend in the channel area to select the area where the flow rate of the etching solution changes for modification, which has the effect of improving the wiring improvement efficiency.

Wherein, the circuit line is thickened from the first reference point, a triangular area is formed between the oblique line connecting the first reference point and the second reference point and the circuit line, and the second reference point The arc extending in the direction of the first channel limits the thickening range and thickness, and the thickening range terminates at the position where the curved section turns into a straight line. In this way, the shape, size and position of the thickening of the circuit line are limited, which can prevent the modified curved section from interfering with the flow of the etching solution, and has the functions of guiding the etching solution and resisting erosion.

Wherein, the circuit line is thickened from the first reference point, a triangular area is formed between the oblique straight line connecting the first reference point and the second reference point and the circuit line, and the second reference point An arc block is formed by extending the oblique straight line to the outer edge of the curved section.

1: Database

2: Processing module

21: Identification unit

22: Modification unit

3: circuit line

4: Channel area

G: Circuit diagram

S1: first channel

S2: second channel

S3: the third channel

W1, W2, W3: width

C: concave fold

T: sharp corner

E1: First side

E2: second side

D1: first compensation thickness

D2: second compensation thickness

D3: The third compensation thickness

N: curved section

R1: first reference line

R2: Second reference line

P1: first reference point

P2: Second reference point

[Fig. 1] This creation is a system block diagram of a preferred embodiment.

[Fig. 2] The unmodified first wiring pattern of a preferred embodiment of this creation.

[Figure 3] A partial enlarged view of area A as shown in Figure 2.

[Fig. 4] The modified first wiring pattern of a preferred embodiment of the invention.

[Fig. 5] Partial enlarged view of area B as shown in Fig. 4.

[Fig. 6] The modified second wiring pattern of a preferred embodiment of the invention.

[Fig. 7] Another modification of the wiring pattern as shown in Fig. 6.

In order to make the above and other purposes, features and advantages of this creation more obvious and easy to understand, the preferred embodiments of this creation are specially cited below, and explained in detail with the accompanying drawings; in addition, the same symbols are marked in different drawings are considered the same, and their descriptions will be omitted.

Please refer to Fig. 1, which is a preferred embodiment of the circuit modification system for creating printed circuit boards. It includes a database 1 and a processing module 2, and the processing module 2 is coupled to the database 1. The processing module 2 processes one of the circuit diagrams G of the printed circuit board.

The database 1 can be a storage device for recording digitized information in any type (such as: electrical, magnetic, optical, etc.), and the database 1 is used to store, retrieve and classify several wiring patterns, and each wiring Several characteristic conditions of patterns.

The processing module 2 can have an identification unit 21 and a modification unit 22, the identification unit 21 can search and analyze a circuit diagram G of the printed circuit board, and compare the wiring pattern of the circuit diagram G and several characteristic conditions with the The wiring patterns stored in the database 1 are compared with the characteristic conditions, and the modifying unit 22 can adjust the wiring patterns of the circuit diagram G with several changing conditions according to the comparison results. The processing module 2 preferably has functions such as data processing, image output and calculation, such as a personal computer, so that the processing module 2 can exchange data with the database 1 quickly, and display the circuit diagram G in real time As a result of modification, the processing module 2 can also be equipped with Electronic Design Automation (EDA) software for automatic analysis and verification of circuit layout.

Please refer to Figures 2 and 3, which are the system for modifying printed circuit board circuits. Analyzing the wiring pattern of the circuit diagram G, the wiring pattern is composed of several circuit lines 3 and several channel areas 4 arranged in a staggered manner, and several characteristic conditions of the wiring pattern are that any of the channel areas 4 has one of different widths. Channel S1 and a second channel S2, the width W1 of the first channel S1 is greater than the width W2 of the second channel S2, the junction of the first channel S1 and the second channel S2 forms a turning point, and the outside of the turning position is A concave fold C located in the channel area 4 is located at a sharp corner T of the circuit line 3 on the inner side of the turning position. When excessive erosion occurs at the turning point of the wiring pattern, the concave fold C and Destroying the sharp corner T causes the area of the circuit line 3 around the turning point to be reduced and the shape is irregular.

Please refer to Figures 4 and 5, which is the modified wiring pattern of the circuit diagram G, filling the recessed portion C with a triangular block to thicken the circuit line 3, and several changing conditions of the wiring pattern are It may include a first side E1 and a second side E2 of the triangular block, the first side E1 is parallel to the first channel S1, the length of the first side E1 is a first compensation thickness D1, the second The side E2 is parallel to the second channel S2, the length of the second side E2 is the width W1 of the first channel S1 plus a second compensation thickness D2, the first compensation thickness D1 is preferably 5 microns to 10 microns, The second compensation thickness D2 is preferably 25 microns-30 microns. The modified wiring pattern can also flatten the sharp corner T, so that a third channel S3 is formed between the modified concave fold C and the sharp corner T, and the third channel S3 communicates with the first channel S1 and the second channel S2, the width W3 of the third channel S3 is preferably greater than or equal to the width W2 of the second channel S2, then the width of the first channel S1 to the second channel S2 through the third channel S3 The variation is from large to small, which can stabilize the flow rate of etching solution during the etching process and avoid irregular erosion.

Please refer to Figure 6, which is another wiring pattern after the analysis and modification of the circuit modification system of this creative printed circuit board. The wiring pattern is two curved and non-intersecting circuit lines 3 and is located between the two circuit lines 3 The channel area 4, several characteristic conditions of the wiring pattern are that the channel area 4 is connected to a second channel S2 by a first channel S1 through a curved section N, and the channel area 4 The width is tapered from the first channel S1 to the second channel S2; the modified wiring pattern is to thicken the circuit line 3 located outside the bending section N, and several changing conditions of the wiring pattern can be Including a first reference line R1, a second reference line R2, a third compensation thickness D3, a first reference point P1 and a second reference point P2, the first reference line R1 is from the second channel S2 to the The inner sideline of the curved section N changes from a straight line to the starting position of a curve; the second reference line R2 is the starting position where the second channel S2 turns from a straight line to a curved line on the outer sideline of the curved section N; the first reference line Point P1 is the intersection point of the first reference line R1 and the outer sideline of the channel area 4; from the intersection point of the second reference line R2 and the outer side line of the channel area 4, and then along the second reference line R2 to the inside The position where the third compensation thickness D3 is moved is the second reference point P2. The third compensation thickness D3 is preferably 5 microns-10 microns.

The circuit line 3 on the outside of the curved section N thickens from the first reference point P1, and a triangular area is formed between the oblique straight line connecting the first reference point P1 and the second reference point P2 and the circuit line 3 , used to limit the range and thickness of the thickening, continued from the second reference point P2 of the apex of the triangle to the direction of the first channel S1 to limit the range and thickness of the final section of the thickening, the thickening range ends at the bending section N turn The position of the straight line can make the modified width of the curved section N greater than or equal to the width of the second channel S2. In addition, corresponding to the thickening range of the circuit line 3 outside the curved section N, the inner side of the curved section N The circuit line 3 pattern can be cut flat (not shown in the figure) to ensure that the modified wiring pattern maintains the tapered width from the first channel S1 to the second channel S2, and has a stable flow rate and control of the etching solution. erosion effect.

Please refer to FIG. 7, the modified wiring pattern of the curved section N can also be that a triangular area is formed between the oblique straight line connecting the first reference point P1 and the second reference point P2 and the circuit line 3, To limit the range and thickness of thickening, continue to extend the oblique line straight from the second reference point P2 to the outer edge of the curved section N to form an arc-shaped block, which is used to limit the range and thickness of the final thickening.

The above-mentioned system embodiment of the present creation can also utilize programming language (Program Language, such as: C ++, Java, Python or Autolsp) to write into computer program (such as: printed circuit board circuit modification system, be used for identifying the region with strong erosion effect of circuit pattern, And modify and control the pattern reinforcement range), the code is written in a way that can be understood by those who are familiar with the art, and can be used to produce a computer program product for modifying the circuit program of the printed circuit board, and the computer system loads the program And execute the above-mentioned system embodiment of the invention.

The above-mentioned computer program product can also be stored in a computer-readable recording medium for modifying the circuit program of the printed circuit board, such as: optical disc, hard disk, USB flash drive, various memory cards, cloud or virtual storage space, etc. The computer system loads the above-mentioned program and executes the above-mentioned system embodiment of this creation, as the basis for the coordinated operation of the software and hardware of the computer system of this creation.

To sum up, the printed circuit board line modification system, the computer program product with built-in program and the computer-readable recording medium with built-in program of this creation can automatically analyze according to several characteristic conditions and several change conditions of the wiring pattern. And to modify the circuit pattern of the printed circuit board, it can make the etching liquid pass smoothly between the lines, and reserve the area where the circuit pattern is eroded, so as to avoid excessive etching from destroying the integrity and electrical functions of the circuit pattern, and can also reduce the modification of printing The manpower requirements for circuit board circuits have the effect of improving product yield, reducing manpower burden and maintaining circuit conductivity.

Although this creation has been disclosed by using the above-mentioned preferred embodiments, it is not intended to limit this creation. Anyone who is familiar with this technology can make various changes and modifications relative to the above-mentioned embodiments without departing from the spirit and scope of this creation. Therefore, the scope of protection of this creation shall include all changes within the meaning and equivalent scope recorded in the appended scope of patent application.

1: Database

2: Processing module

21: Identification unit

22: Modification unit

G: Circuit diagram

Claims (10)

A circuit modification system for a printed circuit board, comprising: a database for storing several wiring patterns and several characteristic conditions of each wiring pattern, the wiring pattern is arranged in a staggered manner by several circuit lines and several channel areas, the Several characteristic conditions are a first channel and a second channel comprising the channel region, the width of the first channel is greater than the width of the second channel, and the junction of the first channel and the second channel forms an opposite Concave folds and a sharp corner; and a processing module coupled to the database, the processing module searches for each of the concaves of a circuit diagram of a printed circuit board according to each of the wiring patterns and several characteristic conditions thereof For the folded portion and each of the sharp corners, the processing module fills each of the concave folds with triangular blocks, and cuts each of the sharp corners flat. The printed circuit board line modification system according to claim 1, wherein the junction of the first channel and the second channel forms a turning point, and the concave fold portion located in the channel area is located outside the turning position, and is located inside the turning position It is located at the sharp corner of the circuit line. Such as the printed circuit board line modification system of claim 1, wherein, one of the first sides of the triangular block is parallel to the first passage, and a second side is parallel to the second passage, and the length of the first side is one The first compensation thickness, the length of the second side is the width of the first channel plus a second compensation thickness, the first compensation thickness is 5 microns to 10 microns, and the second compensation thickness is 25 microns to 30 microns. The printed circuit board line modification system according to claim 1, wherein a third channel is formed between the modified concave fold and the sharp corner, and the third channel communicates with the first channel and the second channel, the The width of the third channel is greater than or equal to the width of the second channel. A circuit modification system for printed circuit boards, comprising: a database for storing several wiring patterns and several characteristic conditions of each wiring pattern, the wiring pattern is two curved and non-intersecting circuit lines and the wiring pattern is located on the two circuit lines channel area between, the Several characteristic conditions are that the channel area is connected to a second channel by a first channel through a curved section, and the width of the channel area is tapered from the first channel to the second channel; and a processing module, coupled and connected In the database, the processing module searches for each of the curved sections of the circuit diagram of a printed circuit board according to each of the wiring patterns and several characteristic conditions thereof, and the processing module forms a triangular block according to several changing conditions and is formed by The arc-shaped block extending from the apex of the triangle thickens the circuit line outside the curved section, and the modified width of the curved section is greater than or equal to the width of the second channel. Such as the printed circuit board line modification system of claim 5, wherein the several change conditions include a first reference line, a second reference line, a third compensation thickness, a first reference point and a second reference point , the first reference line is the starting position where the inner sideline of the second channel to the curved section changes from a straight line to a curve; the second reference line is the outer sideline of the second channel to the curved section from a straight line to a curved line starting position; the first reference point is the intersection of the first reference line and the sideline outside the channel area; from the intersection of the second reference line and the sideline outside the channel area, and then along the second reference The position where the line moves inward to the third compensation thickness is the second reference point, and the third compensation thickness is 5 microns to 10 microns. Such as the printed circuit board circuit modification system of claim 6, wherein, the circuit line is thickened from the first reference point, and the oblique line connecting the first reference point and the second reference point and the circuit line A triangular area is formed between them, and the arc extending from the second reference point to the direction of the first channel limits the thickened range and thickness, and the thickened range ends at the position where the curved section turns into a straight line. Such as the printed circuit board circuit modification system of claim 6, wherein, the circuit line is thickened from the first reference point, and the oblique line connecting the first reference point and the second reference point and the circuit line A triangular area is formed between them, and an arc-shaped block is formed by straightly extending the oblique line from the second reference point to the outer edge of the curved section. A computer program product system for modifying printed circuit board circuit programs system, the computer system loads the program and executes the system according to any one of claim items 1 to 8. A computer-readable recording medium system for modifying printed circuit board circuit programs, the computer system loads the program and executes the system according to any one of claims 1 to 8.

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