Double Sided PCBoards

cm961 · 19th November 2003, 05:37 AM

Hey guys,

Been awhile... hehe.

I need to make a double sided board. I'm using the MG Chemicals presensitized (or whatever) double sided board, and I don't quite know how to expose it. I've done a few single sided boards. Do I just expose one side, flip it over and expose the other?

Pete

macboy · 19th November 2003, 07:27 PM

It's tricky, but it can be done.

You should mark and drill a few holes, to act as references to align the top to the bottom. Also remember that since you can't really make plated-through holes like the pros do, you have to use solder a short piece of wire through any vias, and of course, solder all through-hole components to both sides of the board (where there is a solder pad on both sides).

You might consider some of the PCB shops, some of which will proto a board for around $20. Do a search in the forum.

cm961 · 19th November 2003, 07:41 PM

Wo that would be awesome, since the double sided board cost me about that. Also I noticed your in Ottawa like me, maybe you know somewhere local?

Pete

macboy · 21st November 2003, 04:45 PM

I don't know of any places in Ottawa that do cheap PCB prototypes.

If you search this forum, you can find several threads dealing with making and buying protoype PCBs, such as this one.

19th November 2003, 05:37 AM	#1
cm961 diyAudio Member Join Date: Jun 2001 Location: Peterborough, Ontario	Double Sided PCBoards Hey guys, Been awhile... hehe. I need to make a double sided board. I'm using the MG Chemicals presensitized (or whatever) double sided board, and I don't quite know how to expose it. I've done a few single sided boards. Do I just expose one side, flip it over and expose the other? Pete

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19th November 2003, 07:27 PM	#2
macboy diyAudio Member Join Date: Oct 2003 Location: Ottawa, Canada	It's tricky, but it can be done. You should mark and drill a few holes, to act as references to align the top to the bottom. Also remember that since you can't really make plated-through holes like the pros do, you have to use solder a short piece of wire through any vias, and of course, solder all through-hole components to both sides of the board (where there is a solder pad on both sides). You might consider some of the PCB shops, some of which will proto a board for around $20. Do a search in the forum.

19th November 2003, 07:41 PM	#3
cm961 diyAudio Member Join Date: Jun 2001 Location: Peterborough, Ontario	Wo that would be awesome, since the double sided board cost me about that. Also I noticed your in Ottawa like me, maybe you know somewhere local? Pete

21st November 2003, 04:45 PM	#4
macboy diyAudio Member Join Date: Oct 2003 Location: Ottawa, Canada	I don't know of any places in Ottawa that do cheap PCB prototypes. If you search this forum, you can find several threads dealing with making and buying protoype PCBs, such as this one.