The IPC-7351 Calculator Features include:

• Over 3,500 different component package data
• Search for component data by using manufacturer data or component dimensions
• Displays the component superimposed on the land pattern
• Shows all component and land pattern dimensions
• Shows the solder joint and statistical goals
• Undo and Redo editing
• Links to manufacturer website (component datasheet)
  
  

Advanced features include:

• Graphic display of component features aligned with calculated land pattern
• Compensation variables for fabrication and assembly processes
• Preset operating environments or user defined goals for land pattern toe, heel and side protrusions
• Solder joint analysis calculations
• DRC protection from overlapping lands
• Automatic land pattern name generation
• Minimum Solder Mask Sliver
• Change the view units to Inches, Mils, Microns or Millimeters
• Alternate input format for entering Nominal or Min/Max dimensions
• Relocate Pin 1 on any part
• Default to oblong pad shape but make Pin 1 rectangular shape
• Hide or delete any pins in any part
• Swap pin order clockwise or counter-clockwise
• View solder joint goals before creating library part
• Color Display allows user to personalize graphic display
• Resize paste mask stencil data for Thermal Tabs
• Upgraded print feature
• New Local Fiducial Designer
• Preference menu for defining Global Rules and Drafting items
• User definable Preferences for every component family
• New drop-down menu allows control of which layer is on top

User definable settings for:

• Fabrication and Assembly Tolerances
• Pad size and spacing round-off values
• Individual component family control for Solder & Paste Mask Pad shape
• Silkscreen, Assembly, 3D Model, Courtyard outline line widths
• Reference Designator sizing
• Minimum Land to Land
• Minimum Silkscreen to land

The IPC-7351B LP Calculator allows you to change the Manufacturing Tolerances that determine the pad size, Placement Courtyard Tolerance, PAD Width Round-off, Component Tolerance, Land Pattern Name, and the Solder Joint Analysis. Alternatively, you can simply use the default IPC settings, modify, and save your library documentation (using the LP Librarian or Wizard) for future retrieval.

This product provides the Pick & Place Zero Component Rotation for accurate assembly data. The JEDEC JEP95 publication and the EIA / ANSI 481 specification for tape and reel packaging was used to determine the exact component zero rotation on the assembly tape and reel or tube so that you can build all your CAD library parts in the same zero rotation to provide your vendors with accurate assembly data.