What is this green stuff on the side on the board?

Community PCB Design
1

I Uploaded a board to Batch PCB and have a question

Will this whole thing be the board? Even the cross hairs? I did not add them.

http://arthur92710.byethost31.com/elec/ … tigerb.PNG

(if it does not work put the link in your address bar)

Thanks.

2

arthur92710:
I Uploaded a board to Batch PCB and have a question

Will this whole thing be the board? Even the cross hairs? I did not add them.

http://arthur92710.byethost31.com/elec/ … tigerb.PNG

(if it does not work put the link in your address bar)

Thanks.

Grrr, the link. I almost had to shutdown Firefox to escape the “You’ve won” dangerous websites! Then I pasted the link and actually saw your board. The cross hairs are alignment targets. With board design software, they are not needed. BTW, your board appears to have been auto-routed. What software did you use? Traces should point into the center of a pad. They should not be like this:

   |
  O|
   |

see U2, pin 8.

3

Sorry about the link.

I am using ultiboard from NI.

Also can I route on both top and bottom layers? Well I can but will the circuit work when I solder it?

4

arthur92710:
Sorry about the link.

I am using ultiboard from NI.

Also can I route on both top and bottom layers? Well I can but will the circuit work when I solder it?

Of course you can route your board on both the top and bottom layers. Traditionally top layer traces run vertically, and bottom traces run horizontally (but the PCB police won’t come after you if you run the traces differently :wink: ). If you get the board made at a board house (i.e. BatchPCB), then top side traces are connected to bottom side traces using plated through holes. If you are making this board at home, then you will have to connect top & bottom traces using wires or component leads. You will have to solder the lead or wire on both the top & bottom sides. While this is easy to do for parts such as resistors, it’s a lot more difficult to do with IC sockets.

HTH

5

You should also grow the trace width on your power and ground traces. I’d also line up the two push buttons for looks…

/mike