PCB Systems Design Blog

Posts tagged with 'Padstack'

PCB Design Perfection Starts in the CAD Library - Part 17

Posted Jun 3, 2011, by Tom Hausherr

IPC introduced a new padstack naming convention in the IPC-7351B standard publication and it is used exclusively in the Mentor Graphics LP calculator. This article explains the breakdown of the new standard and its benefits. The padstack consists of combinations of letters and numbers that represent shape, or dimensions of lands on different layers of printed boards or documentation. The name of the … Read More

Tags: IPC-7351, LP Calculator, fiducials, Padstack

Inch to Metric Conversion Tables for PCB design

Posted Mar 31, 2011, by Tom Hausherr

Here are some tips about Metric Speak that all PCB designers need to know. “Metric” is not a unit of measure. Metric is a term that describes a measurement system. You use either millimeters or microns for your PCB design units. The proper terminology to describe your working units when using the metric measurement system is millimeters or microns, not metric. Example: When doing PCB layout in Inches … Read More

Tags: Padstack, CAD Library, PCB Grid

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