I made this kit as a project to help people learn smd soldering. I got most of it from a microchip app note which I cannot find right now. Kits are still available. Ive uploaded some video tutorials to youtube, links are below. http://youtu.be/ge9vhiX-URI http://youtu.be/9Rdj1eIBsE0 http://youtu.be/dp4s7sPSspg http://youtu.be/UzFF7RonK8w http://youtu.be/Ioa05r-B-4k http://youtu.be/k2DrPoWY7g8 http://youtu.be/iGk7q_-leGo