Freescale Freedom Development Board FRDM-CR20A User’s Guide, Rev. 0, 04/2015
Freescale Semiconductor, Inc.
23
Revision history
5.6
Electrical PCB testing
•
All PCBs must be 100 percent tested for opens and shorts
•
Impedance measurement - An impedance measurement report is not mandatory
5.7
Packaging
Packaging for the PCBs must meet the following requirements:
•
Finished PCBs must remain in panel
•
Finished PCBs must be packed in plastic bags that do not contain silicones or sulphur materials.
These materials can degrade solderability.
5.8
Hole specification/tool table
See the
ncdrill-1-4.tap
file included with the Gerber files and the
FAB-28535.pdf
file.
5.9
File description
Files included with the download include Design, Gerber, and PDF files. Gerber files are RS-274x format.
Not all files included with the Gerber files are for PCB manufacturing.
PDF files included are:
•
FAB-28535.pdf
—FRDM- Board fabrication drawing
•
GRB-28535.zip
—FRDM- Metal layers, solder mask, solder paste and silk screen
•
SPF-28535.pdf
—FRDM- Schematic
Design files are in Allegro format with OrCAD schematic capture.
6
Revision history
Rev.
number
Date
Substantive change(s)
0
03/2015
Initial public release.
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