Cadence Allegro_Book 英文详尽教程

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Cadence Allegro_Book 英文详尽教程
简介:774页PDF教程
格式:rar
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Lesson 1: Allegro User Interface ...........................................................................................................1-1
Learning O1-1
Primary Allegro Programs.............................................................................................................1-1
Other Programs .......................................................................................................................1-2
Cadence PSD Tools .......................................................................................................................1-3
Course Directory Structure............................................................................................................1-4
Setting and Changing Your Working Directory............................................................................1-5
Allegro Editor and Workspace ......................................................................................................1-6
Toolbar ....1-7
Control Panel and World View Window ................................................................................1-8
Getting Help ..1-9
Allegro Online Help..............................................................................................................1-10
Lab 1-1: Allegro Tour................................................................................................................1-11
Mouse Butt1-17
Controlling the Window Display.................................................................................................1-18
Navigating in the World View Window......................................................................................1-20
Zoom Control Using the Middle Mouse Button..........................................................................1-21
Default Aliases for Function and Control Keys ..........................................................................1-22
Running Commands with Strokes ...............................................................................................1-23
Controlling the Toolbars..............................................................................................................1-24
Drawing Parameters ....................................................................................................................1-25
Drawing Options: Display and DRC ....................................................................................1-26
Drawing Options: Line Lock and Symbol ............................................................................1-27
User Preferences ..........................................................................................................................1-28
Lab 1-2: Navigating the Allegro User Interface ........................................................................1-30
Lesson 2: Managing the Allegro Work Environment............................................................................2-1
Learning O2-1
Groups, Classes and Subclasses ....................................................................................................2-2
More Groups, Classes and Subclasses ....................................................................................2-3
Options Window of the Control Panel ..........................................................................................2-4
Controlling Color and Visibility....................................................................................................2-5
Controlling Etch Visibility......................................................................................................2-6
Graphics Dimming or Shadow Mode .....................................................................................2-7
Scripts ............2-8
Lab 2-1: Script Files and Controlling Visibility and Color .......................................................2-10
The Selectable Objects List .........................................................................................................2-15
Using the Find by Name Section ..........................................................................................2-16
Using Find by Property .........................................................................................................2-17
Highlighting Elements.................................................................................................................2-18
Lab 2-2: Highlighting and Using the Find Filter .......................................................................2-19
Using the Show Element Command............................................................................................2-25
Using the Display Measure Command........................................................................................2-26
Lab 2-3: Using the Find Filter with the Show Element Command ...........................................2-27

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Lesson 3: Padstacks ...............................................................................................................................3-1
Learning O3-1
Anatomy of a Padstack..................................................................................................................3-2
Padstack Deta3-3
What is a Thermal Relief? .............................................................................................................3-4
Flash Symbols3-5
Lab 3-1: Creating a Flash Symbol ...............................................................................................3-7
What Does the Padstack Designer Do? .......................................................................................3-10
Padstack Designer - Parameters............................................................................................3-11
Padstack Designer - Layers...................................................................................................3-12
Defining Pad Shapes/Sizes....................................................................................................3-13
Adding/Deleting/Copying Layers .........................................................................................3-14
Saving the Padstack ..............................................................................................................3-15
Lab 3-2: Creating Padstacks for a Through-Hole Pin Device ...................................................3-17
Lab 3-3: Creating a Padstack for a Surface- Mounted Device ..................................................3-25
Lesson 4: Component Symbols .............................................................................................................4-1
Learning O4-1
Package Symbol Wizard................................................................................................................4-1
Lab 4-1: Creating a DIP16 Package Using the Package Symbol Wizard ...................................4-3
Drawing Parameters Form.............................................................................................................4-6
Drawing Orig4-7
Moving the Drawing Origin....................................................................................................4-8
Allegro Symbol Types...................................................................................................................4-9
Example: a 14-pin DIP Package..................................................................................................4-10
Adding Pins...........................................................................................................................4-11
Drawing Component Outlines ..............................................................................................4-12
Adding Labels .......................................................................................................................4-13
Defining Area Constraints ....................................................................................................4-14
Saving Symbol Files .............................................................................................................4-15
Lab 4-2: Creating a DIP14 Package Symbol.............................................................................4-17
Lab 4-3: Creating an SOIC 16 with the Symbol Editor (optional lab)......................................4-27
Lesson 5: Board Design Files ................................................................................................................5-1
Learning O5-1
Creating a Board Symbol ..............................................................................................................5-1
Typical Board Outline.............................................................................................................5-2
Drawing a Board Outline ........................................................................................................5-3
Tooling/Mounting Holes.........................................................................................................5-4
Chamfers .5-5
Linear Dimensioning...............................................................................................................5-6
Defining Constraint Areas (Keepins/Keepouts) .....................................................................5-7
Saving Board Symbol Files (.bsm and .dra) ...........................................................................5-8
Lab 5-1: Creating a Board Mechanical Symbol ........................................................................5-10
Board Wizar5-27
Lab 5-2: Creating a Board using the Board Wizard ..................................................................5-28
Creating a Master Design File .....................................................................................................5-31
Defining Layer Stackup ........................................................................................................5-32
Lab 5-3: Creating a Master Design File (.brd)...........................................................................5-34
Lesson 6: Importing Logic Information into Allegro ............................................................................

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<P>Lesson 8: Component Placement...........................................................................................................</P><P>Lesson 9: Advanced Placement .............................................................................................................</P><P>Lesson 10: Routing and Glossing ..........................................................................................................</P><P>Lesson 11: Copper Areas and Positive or Negative Planes ...................................................................11-1</P><P>Lesson 12: Preparing for Post Processing .............................................................................................</P><P>Lesson 13: Preparing the Board design for Manufacturing...................................................................</P>

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