TWI505119B - Layout device and layout method - Google Patents

Description

Circuit layout device and circuit layout method

The present invention relates to a circuit layout method, and more particularly to a circuit layout method that can be automatically adjusted.

Prior to the advent of printed circuit boards, electronic components were directly connected by wires. In 1948, after the United States converted printed circuit board technology from military use to commercial use, it was widely adopted in the mid-1950s. Until now, circuit boards that implement direct wire connections have existed only as effective experimental tools; printed circuit boards have become an important part of the electronics industry.

The design of the printed circuit board is based on the circuit schematic and implements the functions required by the circuit designer. Printed circuit board design mainly refers to layout design, which needs to consider quite a lot of internal and external factors. Excellent layout design can save production costs and achieve good circuit performance and heat dissipation. Simple layout designs can be implemented manually, and complex layout designs require computer-aided design.

Computer-aided design, using computer software to create and simulate physical design, showing the appearance, structure, color, texture and other characteristics of newly developed products. It involves both software and dedicated hardware. As technology continues to evolve, computer-aided design creates a wide range of applications, including architectural design drawings, mechanical drawings, and electricity. Road maps, and other forms of design communication.

Currently used circuit diagram computer-aided design software, only the function of making and simulating circuit diagrams. But in practice, the layout needs to comply with many rules to avoid signal interference or compliance with power security rules. In the current technology, the circuit diagram computer-aided design software needs to be paired with another analog software to simulate the current circuit after the circuit diagram is completed to find out the lines that do not conform to the rules. The user needs to wait for the simulation software to complete the simulation before modifying the non-compliant lines one by one, resulting in inconvenience in use.

The invention provides a circuit layout method comprising: starting to draw a line in a circuit according to a start signal; drawing a line according to a complex position signal; fixing a path and a shape of the line according to a completion signal; And between the completion signals, the length of the line is judged every predetermined time; and between the start signal and the completion signal, the line is dynamically adjusted according to the length of the determined line.

In an embodiment, the step of dynamically adjusting the line further comprises: determining a width of the line according to a wiring rule and a length of the determined line; and dynamically adjusting the width of the line according to the determined width of the line.

In another embodiment, the circuit layout method further includes receiving a plurality of parameters, and the routing rules are determined by parameters, wherein the parameters include a conductivity of the material, a thickness of the circuit layout layer, an operating voltage, an operating current, and/or an expected voltage. drop. Additionally, in one embodiment, the line is a power transmission line.

The invention also provides a circuit layout device, wherein the circuit layout device comprises an input device, a drawing module and a detecting module. Input device It is used to receive a start signal, a complex position signal, and a completion signal. The drawing module is configured to draw one of the circuits in the circuit according to the start signal, draw the line according to the plurality of position signals, and fix the path and shape of the line according to the completion signal. The detection module is configured to determine the length of the line at a predetermined time between the start signal and the completion signal; wherein the drawing module is further used between the start signal and the completion signal, according to the determined line Length, dynamically adjust the line.

In another embodiment, the circuit layout device further includes an instant operation Calculation module. The real-time computing module is configured to determine the width of the line according to a wiring rule and the length of the determined line, and cause the drawing module to dynamically adjust the width of the line according to the determined width of the line, wherein the input device is further configured to receive the plurality of lines Parameters, and routing rules are determined by parameters. Parameters include the conductivity of the material, the thickness of the circuit layout layer, the operating voltage, the operating current, and/or the expected voltage drop. In one embodiment, the line is a power transmission line.

100‧‧‧Circuit layout device

102‧‧‧ Input device

104‧‧‧Display device

1042‧‧‧Drawing module

106‧‧‧Detection module

108‧‧‧ Instant Computing Module

SS‧‧‧ start signal

PS1~PSN‧‧‧ position signal

ES‧‧‧Complete signal

1 is a block diagram of a circuit layout apparatus provided by the present invention; and FIG. 2 is a flow chart of a circuit layout method provided by the present invention.

The apparatus and method of use of various embodiments of the present invention are discussed in detail below. However, it is to be noted that many of the possible inventive concepts provided by the present invention can be implemented in various specific ranges. These specific examples are only intended to illustrate the apparatus and methods of use of the present invention, but are not intended to limit the scope of the invention.

Figure 1 is a block diagram of a circuit layout apparatus provided by the present invention. The circuit layout device 100 can be a notebook computer, a desktop computer, etc., and the invention is not limited herein. The circuit layout device 100 includes an input device 102, a display device 104, a detection module 106, and an instant computing module 108.

The input device 102 can be a mouse, a keyboard or a touch panel, and the like. The invention is not limited. In an embodiment of the invention, the input device 102 is configured to receive a start signal SS, a plurality of position signals PS1~PSN, and a completion signal ES. For example, the start signal SS may be the first click on the circuit after selecting the option of line segment drawing in the layout simulation program, but the invention is not limited thereto. The position signals PS1~PSN may be the area through which the user pulls the line after the click, that is, the path of the line drawn by the user, but the invention is not limited thereto. The completion signal ES may be a click or a double click performed on a point at which the user completes the online segment, but the present invention is not limited thereto.

The display device 104 is used to display an image. It is worth noting that the display The device 104 may be an organic electroluminescent diode display panel, a liquid crystal display panel, a plasma display panel, a flexible display panel, etc., and the present invention is not limited thereto. In an embodiment of the invention, the display device 104 further includes a drawing module 1042. In an embodiment of the invention, the drawing module 1042 is configured to start drawing a line in a circuit according to the start signal SS. Then, the drawing module 1042 is further configured to pull the line according to the position signals PS1~PSN. Finally, the drawing module 1042 can be used to complete the drawing of the line according to the path and shape of the completion line of the completion signal ES, but the invention is not limited thereto.

The detection module 106 is used for the start signal SS and the completion signal ES Between each predetermined time, the length of the line is determined, so that the drawing module 1042 is between the start signal SS and the completion signal ES, according to the length of the determined line. Dynamically adjust the line. In other words, the detection module 106 is configured to dynamically detect the current length of the drawn line during the user's cable pulling process.

The real-time computing module 108 is configured to be based on a wiring rule and the judgment The length of the broken line determines the width of the line and causes the drawing module 1042 to dynamically adjust the width of the line based on the determined width of the line. In detail, after receiving the length of the current line determined by the detection module 106, the real-time computing module 108 calculates the width of the line conforming to the wiring rule via a wiring rule. Then, the real-time computing module 108 causes the drawing module 1042 to dynamically adjust the width of the line according to the determined width of the line. In an embodiment, the routing rules are determined by a plurality of parameters. For example, the user can input the plural parameters by inputting the device 102. After receiving the parameters, the input device 102 can transmit the parameters to the real-time computing module 108 to provide the real-time computing module 108 for operation. It is to be noted that the parameters may include the conductivity of the material, the thickness of the circuit layout layer, the operating voltage, the operating current, and/or the expected voltage drop, although the invention is not limited thereto. In an embodiment, the wiring rule is the formula (1) shown below, but the invention is not limited thereto. The formula (1) is a formula for judging a power transmission line for providing a safe power line width, but the present invention is not limited thereto. In other embodiments, the routing rules may be rules for determining signal interference such as high speed signal lines. In other words, the line drawn is a power transmission line.

R=(1/σ)*[L/(W*T)]....(1)

As shown above, R is the maximum resistance, σ is the conductivity of the line material, L is the length of the line, W is the width of the line, and T is the thickness of the circuit layout layer, wherein the maximum resistance R is the operating voltage, operation The current and the expected voltage drop are determined. Assume that the operating voltage is 3.3 volts, and the expected voltage drop is not large. One hundredth of the operating voltage and the operating current is 2 amps. The real-time computing module 108 can know that the maximum resistance R is (3.3V*0.01)/2A=0.0165 ohms through the basic relationship of resistance, voltage and current. If the thickness of the circuit layout layer is 30um and the material of the circuit is copper (the conductivity of copper is 1.7.10-8Ω-M), the instant operation module 108 can know that the wiring rule is W=(1.7. 10-8*L)/(0.0165*30). Then, the real-time computing module 108 can dynamically calculate the optimal width of the line segment according to the length of the line detected by the detecting module 106.

FIG. 2 is a flow chart of a method for setting a correspondence relationship provided by the present invention. The setting correspondence method is applied to the circuit layout device 100 shown in Fig. 1. The flow begins in step S200.

In step S200, the circuit layout device 100 executes a layout simulation program.

Next, in step S202, the circuit layout device 100 determines whether the input device 102 has received a start signal SS. When the input device 102 receives the start signal SS, the flow proceeds to step S204; otherwise, the circuit layout device 100 continues to determine whether the input device 102 receives a start signal SS.

In step S204, the drawing module 1042 is configured to start drawing a line in a circuit according to the start signal SS.

Next, in step S206, the input device 102 receives the position signals PS1~PSN, and the drawing module 1042 pulls the lines according to the position signals PS1~PSN received by the input device 102.

Next, in step S208, the circuit layout device 100 determines whether or not a predetermined time has elapsed. It should be noted that the circuit layout device 100 may further include A timing device (not shown) is used to calculate whether the predetermined time is exceeded. The timing device can be disposed in the detection module 106 or other device, which is not limited by the present invention. For example, the predetermined time may be 1 microsecond, 10 microseconds, etc., and the user does not obviously feel the time of the delay, but the invention is not limited thereto. When the predetermined time is exceeded, the flow proceeds to step S210; otherwise, the flow proceeds to step S206, and the drawing module 1042 continues to pull the line according to the position signals PS1~PSN received by the input device 102.

In step S210, the detecting module 10 determines the length of the current line, Thus, the drawing module 1042 is caused. In other words, the detection module 106 is configured to dynamically detect the current length of the drawn line during the user's cable pulling process.

Next, in step S212, the drawing module 1042 is determined according to the The length of the broken line, dynamically adjust the line. In an embodiment, the drawing module 1042 dynamically adjusts the line width according to the determined length of the line, wherein the real-time computing module 108 is configured to determine the width of the line according to a wiring rule and the length of the determined line. The drawing module 1042 is dynamically adjusted to adjust the width of the line based on the determined width of the line. In detail, after receiving the length of the current line determined by the detection module 106, the real-time computing module 108 calculates the width of the line conforming to the wiring rule via a wiring rule. Then, the real-time computing module 108 causes the drawing module 1042 to dynamically adjust the width of the line according to the determined width of the line. In an embodiment, the routing rules are determined by a plurality of parameters.

For example, the user can input the plural parameters by inputting the device 102. After receiving the parameters, the input device 102 can transmit the parameters to the real-time computing module 108 to provide the real-time computing module 108 for operation. It is worth noting that the parameters may include the conductivity of the material, the thickness of the circuit layout layer, and the operating power. The voltage, operating current, and/or expected voltage drop, but the invention is not limited thereto. In an embodiment, the wiring rule is the formula (1) shown below, but the invention is not limited thereto. The formula (1) is a formula for judging a power transmission line for providing a safe power line width, but the present invention is not limited thereto. In other embodiments, the routing rules may be rules for determining signal interference such as high speed signal lines. In other words, the line drawn is a power transmission line.

Next, in step S214, the circuit layout device 100 determines the input. Whether the device 102 receives a completion signal ES. When the input device 102 receives the completion signal ES, the flow proceeds to step S216; otherwise, the flow returns to step S206, and the drawing module 1042 continues to pull the line according to the position signals PS1~PSN received by the input device 102.

In step S216, the drawing module 1042 is configured to complete the signal according to the completion. The path and shape of the ES fixed line to complete the drawing of the line. The flow ends in step S216.

According to the above embodiment, the present invention provides a circuit layout device 100 and the circuit layout method can automatically adjust the line during the user's cable pulling process.

The method of the present invention, or a specific type or part thereof, such as detection The module 106, the real-time computing module 108, and the drawing module 1042 may exist in the form of a code. The code can be stored in a physical medium such as a floppy disk, a CD, a hard disk, or any other machine readable (such as computer readable) storage medium, or is not limited to an external form of computer program product, wherein When the code is loaded and executed by a machine, such as a computer, the machine becomes a device for participating in the present invention. The code can also be transmitted through some transmission media such as wires or cables, fiber optics, or any pass. The transmission mode is transmitted, wherein when the code is received, loaded and executed by a machine, such as a computer, the machine becomes a device for participating in the present invention. When implemented in a general purpose processing unit, the code combination processing unit provides a unique means of operation similar to application specific logic.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent. In addition, any of the objects or advantages or features of the present invention are not required to be achieved by any embodiment or application of the invention. In addition, the abstract sections and headings are only used to assist in the search of patent documents and are not intended to limit the scope of the invention.

100‧‧‧Circuit layout device

102‧‧‧ Input device

104‧‧‧Display device

1042‧‧‧Drawing module

106‧‧‧Detection module

108‧‧‧ Instant Computing Module

SS‧‧‧ start signal

PS1~PSN‧‧‧ position signal

ES‧‧‧Complete signal

Claims (10)

A circuit layout method includes: starting to draw a line in a circuit according to a start signal; and drawing a line according to the plurality of position signals; fixing a path and a shape of the line according to a completion signal; Between the signal and the completion signal, the length of the line is determined every predetermined time; and between the start signal and the completion signal, the line is dynamically adjusted according to the determined length of the line. The circuit layout method of claim 1, wherein the step of dynamically adjusting the line further comprises: determining a width of the line according to a wiring rule and the determined length of the line; and determining the line according to the determined line The width of the line is dynamically adjusted to the width of the line. The circuit layout method of claim 2, further comprising receiving a plurality of parameters, and the wiring rules are determined by the above parameters. The circuit layout method of claim 3, wherein the parameters include a conductivity of the material, a thickness of the circuit layout layer, an operating voltage, an operating current, and/or an expected voltage drop. The circuit layout method according to claim 1, wherein the circuit is a power transmission line. A circuit layout device includes: an input device for receiving an initial signal, a plurality of position signals, and a completion signal; a drawing module for drawing a line in a circuit according to the start signal, pulling the line according to the plurality of position signals, and fixing a path and a shape of the line according to the completion signal; And a detection module for determining the length of the line between the start signal and the completion signal at a predetermined time; wherein the drawing module is further used for the start signal and the completion signal Between the above, the above line is dynamically adjusted according to the determined length of the above line. The circuit layout device of claim 6, further comprising an instant computing module, configured to determine a width of the line according to a wiring rule and a length of the determined line, and cause the drawing module to be The width of the above-mentioned line determined is dynamically adjusted to the width of the above line. The circuit layout device of claim 7, wherein the input device is further configured to receive a plurality of parameters, and the wiring rules are determined by the parameters. The circuit layout device of claim 8, wherein the parameters include a conductivity of the material, a thickness of the circuit layout layer, an operating voltage, an operating current, and/or an expected voltage drop. The circuit layout device of claim 6, wherein the circuit is a power transmission line.