I contacted with the original person and this is what he replayed



Andre,
This is a PCMCIA memory board. The strange traces are mostly GND but
some are power. Another strange thing is that the GND on the top side
are solid floods, only the back has the type of route you see in the
picture. Someone suggested this might have been done to keep the pcb
from warping but then why do the "Z" shape every so often?

Fred

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics