Small pcb, assembly cost?

Go To Last Post
7 posts / 0 new
Author
Message
#1
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I have some of these-
http://www.dipmicro.com/img/1/PC...

which is a nice price, and a good idea for prototyping, but I'll say it- I hate soldering these surface mount devices. Most of my battle is getting the thing to sit on the pads to where I can even clamp it down. Anyway, I know it can be done, but its just not my thing.

The other extreme is to buy a prototype board of some kind, but $20-$30 a pop, that gets a little expensive. For example, with dip parts you can have 5-6 different bread-boarded circuits going with just the cost of the micro.

So, my question is- taking a simple board like above, and 1 48pin qfp micro (or possibly qfn, I guess), how much 'extra' does it generally cost to have a part mounted to a pcb. I assume quantity is a big factor, so I'll say 100-200 boards just as an example.

Ballpark figures, if anyone cares to comment. (I'm in US)

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

If you've got 100-200 boards, have you considered getting a stencil made, and using a skillet to reflow them?

http://www.adafruit.com/blog/200...

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

All that stuff is neat, but I'm just not interested in all that labor. Stencils, frying pans, solder paste, etc. Its just like (trying) to make your own pcb's- you end up in a kitchen with pots and pans, recipes, lots of cooking gadgets, and flops. I don't want to be a cook, and would like to have someone else make my 'meals' for me. If possible. Otherwise its back to cereal, milk, and dip parts.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I mostly assemble my own prototypes, but I have used this company to assemble a couple of boards with BGAs for me:

http://www.asktechnology.co.uk/About%20ASK.htm

They charged £30 each, plus the cost of a mini-stencil for the BGA. It included all the components except the BGA and a PIC, which I supplied.

Leon Heller G1HSM

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I'm trying 'quotes' online, and it looks like its going to vary quite a bit. About the lowest I have seen so far is around $5 per board for 100 (I'm assuming 1 48pin part only). A lot of places require an email for quotes, but I'm not ready for that yet.

I would have to sell the other 90, so unless the price is at a point where they could be sold at a reasonable price, it probably wouldn't make much sense in doing.

Maybe its not a good idea, but I would pretty much like a board like I linked above, with a micro mounted. That's it. Through-holes for a crystal and a few caps that can be user provided and user mounted. No kitchen sink. Plain and simple.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Try Screaming Circuits. I think they are economical for small runs.

Leon Heller G1HSM

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I sent you (the OP) a PM.