Difference between revisions of "PCB Component Footprint Validation Procedure"
From apertus wiki
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# Now the actual checks begin: | # Now the actual checks begin: | ||
## Check the pitch, position of all pads matches the specifications in the datasheet | ## Check the pitch, position of all pads matches the specifications in the datasheet | ||
## check if all pins are fully surrounded by pads | ## check if all pins are fully surrounded by pads (green) - SMD components have red SMD pads | ||
## check if the pin numbering/naming is matching the datasheet | ## check if the pin numbering/naming is matching the datasheet | ||
Revision as of 12:08, 6 February 2015
1 Preparations
- Install Eagle Freeware edition 7.0.0 (dont use the latest version): http://www.cadsoftusa.com/download-eagle/ and choose "Freeware license" when running it for the first time.
- Download *.brd,*.sch and library archive of a project PCB
- Open the *.brd or *.sch file in Eagle and go to File -> Export -> Partlist
- Save the partlist as text file
2 Verification
2.1 Footprint validation
- Google for the datasheet of the component with entire partnumber
- Most of the time either the manufacturers website or the distributors (farnell, RS, digikey, mouser) will offer them for download.
- In Eagle go to Library -> Open and select the first library from the archive
- Once the library window opened go to Library -> Package and choose the one matching the one in the partlist
- Now the actual checks begin:
- Check the pitch, position of all pads matches the specifications in the datasheet
- check if all pins are fully surrounded by pads (green) - SMD components have red SMD pads
- check if the pin numbering/naming is matching the datasheet
- for parts that have no value defined check the recommendations and research matching parts
- search for best price offer for this or alternative equivalent parts