My question is how to solder tiny chips without using professional instruments with a reasonable chance of succes . I approached Fabio Varesano who is experienced in this field and I got the next very useful instructions:
"But I do have soldered QFN ICs into homebrew DIY pcbs. You can see some:
http://www.varesano.net/blog/fabio/new-homebrew-diy-breakout-board-pcb-adxl345-a...
varesano.net - the above links you have my schematics and designs for an homebrew PCB for the ITG3200, in case you decide to build it.Regarding soldering, I'm using solder past in syringe + "reflow" pizza oven (not to be used for anything else eg cooking).
Alternative ways:
Hot air gun: How to Solder QFN MLF chips Using Hot Air without Solder Paste and Stencils - YouTube
*Skillet: http://www.starlino.com/surface_mount_reflow.html*[/color][/i]Also I found the site: http://ng.uavp.ch/moin/Documentation/Construction/Soldering/Accelerometer which is in my opinion valuable.
Among you are undoubtly more engineers with great expertise who like to share their skills with me/us. I am looking forward to your contributuions../me
soldering guides:
http://www.seattlerobotics.org/encoder/200006/oven_art.htm
http://www.enetsystems.com/~lorenzo/smd/an014.pdf
IMPORTANT NOTE: If you use the reflow oven for soldering don't ever use it again for coocking. Use it in a well ventilated area. Solder paste and PCB chemicals are dangerous to breath or eat.
PCB frabrication:
http://dorkbotpdx.org/wiki/pcb_order