4 Commits

Author	SHA1	Message	Date
Werner Almesberger	5a9ec34420	qfn.fpd: added draft for Atmel VQFN28 (ATmega48)	2011-01-31 18:53:21 -03:00
Werner Almesberger	3a59aef242	qfn.fpd: corrected center pads, and general cleanup ... - qfn.fpd: package names now also include the variant (for now: SiLabs, VHHD-2, or VHHD-6) - qfn.fpd: inlarged center pad of QFN28-SiLabs (was QFN28) from 3.25 mm to 3.3 mm - qfn.fpd: reverted QFN32-VHHD6 (was QFN32) to original geomtry - qfn.fpd: introduced QFN32-VHHD2 for the ATmega32U2 - qfn.fpd: distribute solder paste in little islands (in progress) - qfn.fpd: deleted stray unused vector in root frame	2011-01-23 01:15:18 -03:00
Werner Almesberger	8703fc1a0b	qfn.fpd: added measurements and improved design of the central pad ... - qfn.fpd: where were no measurements at all - added them - qfn.fpd: parametrize 0.1 mm border between central pad and land pattern and increase it from 0.1 mm to 5 mil (recommended by Adam Wang) - qfn.fpd: define solder paste of central pad separately and give it a 5 mil border to the pad edge, 10 mil to the copper edge (parameters recommended by Adam Wang)	2011-01-21 21:59:34 -03:00
Werner Almesberger	87588bed0e	Added QFN28 and QFN32 footprints for MCU and TXRX.	2010-08-12 09:39:13 -03:00