You're getting better at this.
I personally like to make PCB layouts just for fun, i like taking all of my audio amp chips and make layouts for each one of them.
Thanks!
A 555 gave me a headache trying to route! So I thought instead, I'd not only dabble in to SMD, but make my entire board SMD(almost):
I ran in to so many learning exercises.
A) Every -duino and clone seems to use a "PANASONIC D" footprint within the rcl library and that gave me an incredible headache trying to find what package they used (no one has real BOMs!). Noticing all their choices are different, I found out that most SMD radial cans at ~10-500uF have 6.3mm dia. I assume people just choose any one that fits in that footprint.
B) I wanted some margin (I expect no more than 100mA use), so I found D2PAK or TO-261 package regulators in the 200-500mA range and chose the D2PAK.
The one I chose raises 92*C/W in air, and so under normal use (9V-in,100mA-out) = 400mW = ~40C increase, reasonable, but I thought I'd try to manage it.
I figured since I made such a nice single-sided layout I'd make some thermal relief vias (modifying smd->via clearance in the DRU) and add some basic planes underneath. Do you think that would be enough, to say reduce the temperature by at least 10 degrees? should I flood more or am I expecting too much (100mA+) out of a small regulator?
C) What are my hopes for doing this DIY? My ignorant thoughts are: Flux the entire board, give each pad (or one of each if they're to tack something on first) a flood of solder, and then go away at it with my hakko. thoughts? Or would a syringe and solder paste/hot air gun (I have a sparkfun heaterizer) be the way to go?
Any suggestions?
Here's my BOM, digikey seems to allow viewing of them:
http://www.digikey.ca/short/7cqqcmI can probably optimise things a little more, but that is so far what I have and it looks pretty decent. I'm embarrassed (in a good way) about my OP's design now