"John Larkin" wrote in message
...
On Fri, 19 Oct 2007 01:29:07 -0500, "Jon Slaughter"
wrote:


"Jon Slaughter" wrote in message
. net...

"John Larkin" wrote in
message ...
On Thu, 18 Oct 2007 15:54:14 GMT, "Jon Slaughter"
wrote:

Redone to minimize area.


Minor pickey: we wouldn't parallel the two surface-mount pins
(lower-left on the chip) like that. It would look too much like a
solder bridge. It's better to run the paralleling trace off to the
left, where it's more visible and makes inspection easier.

Of course, you already know that it's not a solder bridge!


Maybe, I thought about it because it sorta looks odd the way I did it. I
was either thinking to run them both to the source in parallel or sorta
"hook" one into the other(the hook looked ust as ugly). In this case it
wasn't a big deal so I just did the easiest thing

Although, maybe it could cause a slight issue with seating the leads? I
guess I'll find out when I solder them.

Still trying to figure out how to print it well. Ink jet on transparency
isnt' working to well. Its about 5 to 10% transparent and very
irregular.
Probably fine for short exposure times but I'm trying to think about how
to fix that. (I don't remember having that issue before but maybe I
wasn't
paying attention to it) Going to probably take it somewhere and get it
printed but finishing up a few other circuits that I'm doing first.


Actually I'll probably change it because its quite ugly on both sides of
the
pin.



We would hook/loop it outside the IC footprint, so the trace is
clearly visible, not to mention klugable.

We let our production people review our layouts for stuff like this:
ease of placement, inspection clearances, fiducials, mechanics, things
like that. So we can share the blame.


Hehe, well, unfortunately I have no one to blame but myself if it goes
wrong. I went ahead redid it.. I guess I can attach my final product. I'm
ready to etch but just waiting for the mask to dry a bit. Hopefully I don't
have any big trouble with it.

BTW, the other circuits are just for "conversion" so I can work with some
SMT IC's a bit easier. These circuits ended up being about 3-5 times larger
than I imagined ;/ I guess that is a normal side effect of single sided
stuff?

Thanks,
Jon