电路设计

PADS 9.3再学习笔记

2019-07-14 12:46发布

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1.Once critical signals have been routed, the power of PADS Autorouter can be used to quickly complete the rouing tasks.
2.Applies fanout/spacing/pad entry constraints to package types. Ex: ssigning smaller line widths on fine pitch parts so traces can exit the part without creating violations. Highly efficient method of defining constraints across similar parts.
3.During interactive routing, press F4 to toggle between layer pairs.
4.N {} Net highlighting on or off----pads layout
5.Shift+A Accordion beginning, interactive routing mode----pads layout
6.Auto-wire feature (connection created by touching pins and dragging comps apart)--logic
7.To bring the whole design in view, press Ctrl+B, the Board shortcut or press the home key.--layout
8.In PADS Layout, you have the capability to define a region as a keepout for vias, traces, and other design objects.
9.Start-up files are a method of reusing design options from one design to another. A start-up file contains predefined system settings such as the number of layers, display color assignments, current working grids, design rules, and many other commonly used options. You can create start-up files for a particular board type, such as a two layer or four layer PCB. You can then use the start-up file for each PCB design and avoid entering standard options with every new design.
10.Placing components using Move Sequential
11.To display all lines and traces equal to or greater than 8 mils in their real width, type the modeless command r8 and press Enter.
12.Shift+click to select the whole pin pair.--layout
13.To set the angle mode to Orthogonal, type ao and press Enter.

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