Today I received 2 test PCB’s for my “dedicated RLP processor”
I need to do some real-time stuff that I can attach to a FEZ Panda or Cobra. For that reason I developed a board that takes an AT32UC3B0256 microcontroller, holds a voltage regulator and crystal. Plus it makes those 0.5mm pitched pins more accessible.
It is also my first TQFP I have soldered and it was easier then expected!
for small runs, dorkbot pdx has a good deal - $5 per square inch of space your board consumes, and you get 3 copies. Never personally used them but I hear lots of good stories. Intl shipping can play havok of course, but worth considering
I ordered myself a new soldering station (done with the firestarter ;D) and I’m going to be ordering my board from DorkbotPDX here and doing some SMD of my own
I had a temperature controlled station but I’ve sold it. I do the SMD soldering with an ordinairy 35watt weller soldering iron with 1mm tip. Works like a charm!
I also used a flux pen.
For cases I need to desolder components, I use a heating gun with a home bended piece of aluminium. So you really don’t need special SMD tools.
The CPU has it’s own voltage regulator that converts the 3.3V to a Vcore of ~1.75V. Atmel recommends to place two 0.1µF caps in parallel on input and output of the regulator.
I admit, the pads are a little too big for 0.1µF caps
Hardware guys at my company sometimes order prototypes from a polish manufacturer. Could you please compare is there any difference in price between what you paid and what this calculator tells you:
I tried it and it seems like there is a huge price difference…
I was forces to choose ‘panel’ type, and I see they took the board dimensions as the panel size. Maybe I should have multiplied the width by 2. It was not very clear.
Also, the order quantity, do they mean number of panels? Not very clear
Sure, I will ask the guyes for one and post a photo here. If its acceptable i will be more than happy to help you with the logistics in case you want to order anything.
The first one is a device that was made by a company called SIMS (http://sims.pl) that outsources PCB making to the technoservice (company i mentioned earlier). The other one is a prototype made directly for us by technoservice. Do you want to see a high resolution photo?