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README-PCB: relaxed antenna via size from 8 mil to <= 15 mil

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Werner Almesberger 2011-03-24 00:26:10 -03:00
parent 7e20be97dc
commit af6d563194
2 changed files with 4 additions and 0 deletions
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atben/README-PCB
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@ -4,6 +4,8 @@ Board characteristics:
- board material: FR4, thickness 0.8 mm (1/32"), 1 oz copper - board material: FR4, thickness 0.8 mm (1/32"), 1 oz copper
- surface finish: ENIG recommended - surface finish: ENIG recommended
- via holes: diameter is nominally 10 mil, but any size <= 15 mil can be used - via holes: diameter is nominally 10 mil, but any size <= 15 mil can be used
- ground via of the antenna: diameter is nominally 8 mil, but any size <= 15
mil can be used
- mechanical tolerances: <= +/- 0.1 mm on all sides - mechanical tolerances: <= +/- 0.1 mm on all sides

2
atusb/README-PCB
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@ -4,6 +4,8 @@ Board characteristics:
- board material: FR4, thickness 0.8 mm (1/32"), 1 oz copper - board material: FR4, thickness 0.8 mm (1/32"), 1 oz copper
- surface finish: TBD, ENIG is preferred - surface finish: TBD, ENIG is preferred
- via holes: diameter is nominally 10 mil, but any size <= 15 mil can be used - via holes: diameter is nominally 10 mil, but any size <= 15 mil can be used
- ground via of the antenna: diameter is nominally 8 mil, but any size <= 15
mil can be used
- mechanical tolerances: <= +/- 0.1 mm on all sides - mechanical tolerances: <= +/- 0.1 mm on all sides