TW576987B - Method for simultaneously drawing plural traces - Google Patents

Abstract

There is provided a method for simultaneously drawing plural traces, which is primarily applied in PCB layout to allow the layout engineer to simultaneously draw the traces for coupling the components such as chips to the connection pads. Each trace is vertical with the connection pad. Accordingly, it is able to overcome the trouble in sequentially drawing the trace in the conventional skill, and also avoid that the trace violates the rule of being vertical with the connection pad, thereby greatly reducing the error rate of layout.

Description

576987

[Application Field of the Invention] The present invention relates to a method for displaying a printed circuit board (pcb, printed C0irCUl1: b〇ard) circuit layout (Layout) diagram, particularly a method for simultaneously drawing out a plurality of traces Method. [Background of the Invention]

In the design of printed circuit boards, early computer graphics design is one of the most important tasks. Among them, the use of computers to draw printed circuit boards is mainly divided into two parts. The following is the layout of the circuit (Lay ut); when the electronics engineer's positioning process for a printed circuit board is completed, the subsequent layout of the printed circuit board is handed over to the layout engineer (Lay out eng) i neer) for subsequent line layout engineering.

But when the circuit layout engineer starts the circuit layout operation, it is often necessary to connect the pads (pad) that are coupled by the pin (c 0 mp 〇nent, such as a chip). · Traces. At the same time, you must pay attention to the rule that each of the drawn lines must be perpendicular to the edge of the rectangular connection pad. Therefore, the wiring drawn by the component is often not perpendicular to its connection pad, which leads to the trouble of having to repair the wiring again, which virtually reduces the operating speed and efficiency. [Objective and Summary of the Invention] The object of the present invention is to provide a method for simultaneously pulling out a plurality of traces. Through the operation of this method, the purpose of enabling a circuit layout engineer to improve the operation efficiency can be achieved.

Page 4 576987 V. Description of the invention (2) In order to achieve the above object, the method of the present invention includes the following steps: first, a component is selected by a user; then a list of information is provided in the user interface; and then the user Select the direction of the trace and enter the length. Finally, you can directly pull out all traces from the pad of the component pins. Regarding the implementation of the features of the present invention, the preferred embodiment will be described in detail with reference to the drawings: [Detailed description of the invention] Please refer to "Fig. 1" The operation mode of the first preferred embodiment of the present invention, its necessary steps First, the user selects a component (step 1 10). This component has many pins (pi η). In practice, most of them are chips (ch ip). Then, a function key is used to provide a list of information for use. User interface (step 1 2 0), this information list includes the pull-out direction of the trace and the input block of the length of the trace; then the user selects the direction of the trace and enters the length (step 1 3 0) Finally, directly connect the pads of the component pins (pad) to pull out all the traces vertically (step 160). The applicable pads are rectangular. In the aforementioned step 130, after the user enters the length, it is still possible to provide a judgment as to whether the trace length is appropriate, that is, to determine whether the coordinates of the end points of the trace fall outside the safe range of the surrounding units (step 140), which means operation. And determine whether the coordinates of the center point of the pin of the component in the direction plus the length of the trace end coordinates fall outside the safe range of the unit around the component (traces, through holes (VIA) or other wafers) , This safety range can cover the unit itself plus a safety distance on its edge: when the answer is "No", an error message is displayed

Page 5 576987 V. Description of the invention (3) _ ^ Step 15〇), then return to step 130 and re-enter; if you answer 疋 ^, that is, follow step 160 to continue all the traces y, and Step 12 above. The information provided in the list is the second. The detailed flow chart shown in "Picture 2" is used to reach the function keys of the interface. First, use the components of the component = ^ and use the pins to pull out the direction of the wiring (step ;: up). List (step 240). In this way, you can cover up-after taking out a poor selection of the direction of the trace and the input of the length of the trace "-Information list allows the user to use the layout engineer of the first preferred embodiment of the present invention to The effective square / two-sided supply method can allow the wiring of the connection pads connected to the line, and every two runs: 2: the edge of the chip and other components, so as to overcome the past, the green edge is perpendicular to the rectangular connection edge. There are routings that do not meet the tediousness of vertically connecting the routing, and at the same time, the rules of the right flute _ ± 妾 pad are truly the user ’s gospel. Choose the direction of the routing and lose; step 130, the user chooses a pull The movement of the exit line is set in advance to allow the operation of the second preferred embodiment; ^ f drawing "" household "^ the length of the line of the present invention is set to / / Nai '100 is to be completed before the operation When the user selects a ^ k, when the user touches the function key, the user first confirms the error message. When (step 310 two-step = = case is "No", that was all the pins connected parts of the field where, Wood as "the mother of a path whereby the connection pad pulled away for a preset length

576987 V. Description of the invention (4) wire (step 3 3 0), of course, each trace is perpendicular to the connection pad; finally, the pulled-out trace is set to the protection mode (step 3 4 0). Different from the previous embodiment, this embodiment provides a judgment of whether component selection is correct or not. In addition, in order to avoid the user from mistakenly selecting the edited routing during the subsequent operation, the routing will be pulled out. Set to protected mode. Both of the above are helpful for the correctness of the circuit layout operation and can improve the operation efficiency by reducing the error rate. Secondly, in the above step 340, the operation of pulling the wiring is achieved through the detailed flowchart shown in "Figure 4." When the user presses the function key of the user interface, the pin type, geometry name, and package mode in the geometric database are first obtained by the reference name of the component (step 4 1 0), and then the corresponding reference name is obtained by the component. The relationship between the pin number and the pin name in the position file of this pin type (step 4 2 0), and then use the above two kinds of data to combine the directions of the pins that can be pulled out (step 4 3 0), and finally It is based on four parameters such as the pin number and the center position of the pin, the extension direction, and the corresponding cable name. The cable is pulled out by the connection pads of each pin according to the direction and the preset length (step 4 40). Although the present invention is disclosed in the foregoing preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention. The patent protection scope of the present invention shall be determined by the scope of the patent application scope attached to this specification.

Page 7 and 87. The diagram is briefly explained. The first diagram is A. ———---- The operation of the preferred embodiment & The method of drawing multiple traces at the same time & The first and second diagrams of the method are the methods of “τ to pull out multiple traces” in the same embodiment of the present invention. The list of Bexun is listed in # 用 我 乐乐 义 图, — the detailed flow of the user interface FIG. 3 is a flowchart of the operation of the same preferred embodiment of the present invention; and the second comparison of the method for preparing and routing is shown in FIG. The second detailed method of the method is a detailed flow of a segment of a predetermined length = each connected pad is pulled out. [Illustration of Symbols] Hou Ren® I ° Step 1 1 0 Step 1 2 0 Step 1 3 0 Step 1 4 0 step 1 5 0 step 1 6 0 step 2 10 step 220 step 230, the user selects a component ::: information list in the user interface, selects the direction of the route and enters the length to determine the route 走 & & 4-pass' again ~ whether the coordinates of the deep point fall outside σ a safe range & the error message is displayed around this element Connection __A Thousands of traces connection $-The person pulls out vertically, so the name of the element is obtained from the geometry database, and the geometry name and packaging mode are obtained by the reference name of the component. The relationship between the pin number and the pin name in the address building is based on the above two types of data. Each pin can be pulled out.

576987

Step 2 4 〇 Step 310 Step 320 Step 3 3 0 Step 3 4 0 Step 4 1 〇Step 420 Step 4 3 0 Step 440 Form an information list in the direction of the line to make sure that the user selects a component to display an error message and all components of the component are connected. Each connection pad connected to the pin is pulled out by a predetermined length of wire. Set the pulled out wire to the protection mode to obtain the pin type in the geometric database with the reference name of the component. The geometric name and packaging mode Take the test name to get the relationship between the pin number and the pin name in the address slot corresponding to this pin type. Combine the above two kinds of data to get out the direction of the cable, the pin number and the center position of the pin , Extension direction and corresponding cable name, etc., the cable is pulled out by the connection pad of each pin according to the direction and preset length.

Claims (1)

576987 Please patent the method that can be = is to use the computer's circuit to open the user's printed circuit board (PCB) to pull out multiple π, Π, one component (C ° __ ^ 、,, urine ^ method includes the following Steps: f User selects-component; provides a list of information in a user interface;!: Person; selects multiple routing directions and enters-routing length; and 2. pads are the same as " " When pulling ^ // feet (1) 111) connection of a rectangular plural connection, such as applying for a special = plural pads on the edge of the pad. (trace) method, which ::: The steps of replacing multiple walks and lines with a discriminating user X ^ one element are 3. When it is not, it is displayed-wrong It takes one ... ㈣, when the answer αΐ ;: ^ The steps of the interface further include the following ^ for an information list in-the user obtains a geometric number pin type, a complex geometric name, and the second of the unit with a reference name of the component: The relationship between the plural pin number of the pin type _ 与 and the plural pin name · Private direction; Γ The connection to which the pin is connected can be pulled out to form an information list. 576987 6. A method for applying for a patent (trace) method, wherein the method further includes a final step of setting the trace to a protection mode. The method of simultaneously pulling out a plurality of traces as described in item 1 of the scope of patent application, wherein the component is a chip. The method of simultaneously pulling out multiple traces as described in item 1 of the scope of patent application, wherein after the step of providing the information list in the user interface of the user interface, the method is performed before the subsequent steps described above. Perform the following steps: Displace the coordinates of the center point of the pin of the 7L piece, and add 忒 trace length to the end of the trace according to the trace direction; The element is out of safety for a long time. Fix the method as described in item 6 of the scope of patent application. Fu Zhaobei Niu Mu walks, and springs "When the answer in this discrimination step is". " The user, g S, walks in the direction of Λ and turns into the length of the trace. K ^ As described in the scope of the patent application (counting a method, where the unit is a selection bar, the edge is connected to the component 塾 group Group combination. Routing, through-hole (VIA: the same method as described in the patent application scope No. 6 (= ⑻ method, where the safety range of the line is drawn by a unit of a unit of a unit of a safe distance of the unit of f) Trace (square), semi-executable program operation to assist the user to print 'is through a computer 仃 printed circuit board (PCB) 5 · 6. 8. 9. page 11 I 576987 6. The layout of the patent application circuit (Layout). With the touch of a function key, multiple traces can be drawn from a component (c0mp〇nent) at the same time. The method includes the following steps: The user selects the A component; obtaining a complex pin (pi η) type, a complex geometric name, and an encapsulation mode of the unit using a reference name of the component; obtaining the reference name (referencename) The relationship between the number of the plural pin and the name of the plural pin in a position file (mappingfi 1 e) corresponding to the pin type; the rectangular plural connection pad (pad) connected to the pin can be used to pull out the plural number of the plural wiring The direction of the wiring is perpendicular to the edge of the connection pad; and the four parameters such as the pin number and its center position, the direction of the wiring and the corresponding name of the wiring, the connection pad follows the routing Line direction and one of the preset trace lengths to pull out the trace. 11. The method of simultaneously pulling out multiple traces as described in item 10 of the scope of patent application, wherein the step of the user selecting a component is replaced with a step of determining whether the user selects a component, when When the answer is no, an error message is displayed. 12. The method of simultaneously pulling out multiple traces (t r a c e) as described in item 10 of the scope of patent application, wherein the method further includes a final step of setting the traces to a protection mode. 13. Pull out multiple traces at the same time as described in item 10 of the scope of patent application ill1 Page 12 576987 Page 13