Location:Training / Tools/EDA / 4-layer router product PCB design / Rule settings, cascading settings

    This set of tutorials uses the new version of Mentor PADS VX2.5 to explain in stages. From the creation of schematic libraries, schematics, PCB libraries to the layout and routing of PCB design, the whole process is explained and communicated with everyone. How to draw each device? How is it placed? How to pull each wire? What are the power cords? What are signal lines? These will be explained in detail one by one, and novices can generally do it themselves after reading it once. The entire process from scratch is explained clearly, so that as a novice, you can really learn something.
[Course Issue 1]: Course introduction, learning methods and creation of component library

[Course Content]: This live broadcast mainly introduces the general process and steps of electronic design, and gives an overall introduction to the actual project and sort out the design ideas. . At the same time, it is introduced to the component library creation stage of this practical project to learn various types of component creation methods and creation techniques.

1) Course introduction

2) How to quickly master PCB design

3) Creation of component libraries and calling existing component libraries

4) QA technical questions and answers



[Course Phase 2]: Drawing and compilation inspection of router schematics

[Course content]: Last time The live broadcast explained how to use PADS Logic software to create components. After the library components are created, how to use these components to draw the required schematic diagram? How to operate it specifically and what needs to be paid attention to? Let’s learn together during this live broadcast.

1) Drawing of modular schematics

2) Adding functional module auxiliary lines

5) QA technical questions and answers



[Course Phase 3]: How to create a PCB packaging library and calling existing packages 

[Course content]: PCB packaging is to put the actual Various parameters of electronic components, chips, etc. (such as the size of the device, the size of the pad, the length and width of the pins, etc.) are displayed graphically. After the packages have been accumulated through design time, some common packages can be called directly. How to obtain data parameters for other packages through the corresponding specifications, and how to use PADS Layout software to create packages, this is the main content of this live broadcast.

1) Common component package calls

2) IC type (QFP) package drawing method

3) Plug-in type (DIP) package drawing method

4) QA technical questions and answers

 

[Course Issue 4]: Netlist import and modular layout design

[Course content ]: In PCB design, layout is a very important step. The quality of the layout is related to the subsequent wiring work. It is important to lay out your ideas before taking action. First, clarify your ideas, determine which devices belong to which functional modules, layout them according to the functional modules, and then deal with the details. Only in this way can the layout design be completed in an orderly manner. Then let's learn this together?

1) Import schematic diagram into PCB

2) PCB board frame import and layout and routing area setting

3) Simultaneous module capture of schematic diagram and PCB

4) Structural device layout and pre-layout processing

5) Other device layout processing and overall layout optimization

6) QA Technical Q&A



[Course Issue 5]: PCB design rule setting and PCB manual wiring

[Course content]: Before starting the wiring work, you must first set the basic rule attributes to ensure the signal wiring requirements. Wiring is a time-consuming part of PCB design. How to plan the wiring space, clarify the wiring ideas, and what wires to connect first and what wires to connect later are all things that need to be mastered. Let’s learn about these contents in this live broadcast.

1) Stacking settings, general rule settings and wiring planning

2) Class addition and rule settings

3) Main signal wiring analysis, main IC chip fan holes and wiring processing

4) Other signal line wiring processing

5) Power plane rule setting and segmentation processing

6) QA technical Q&A



[Course Issue 6]: PCB DRC inspection, imposition design and data output

[Course content]: For a PCB design, after the layout and routing is completed, 90% of the entire project is considered completed, and DRC inspection is necessary An essential step is to use software constraints to check whether our design meets the standards of the rules. What jobs are there for the remaining 10%? After the design is completed, it is usually sent to the board factory for production. Considering the issue of confidentiality, it is not recommended to directly send the PCB source file to the board factory for production. How to output the relevant production files is a knowledge point we need to master.

1) DRC inspection and elimination of the entire PCB board

2) Silk screen adjustment, text addition, assembly PDF output, DXF file output

3) Light drawing file addition and modification

4) Light drawing file output, inspection and file archiving

5) QA technical questions and answers