This view has more or less been completely turned upside down, says Dr. Wadhwa, who is co-editing a special issue of scientific papers on pregnancy and stress to be published in Health Psychology next year.
A wire feeder is used to supply solder. Both lead-tin and silver-tin material can be soldered. Process recipes will differ depending on the alloy composition. For soldering 44-pin chip carriers to a board using soldering preforms, power levels were on the order of 10 Watts and solder times approximately 1 second.
Solder is obviously a key element in any form of electronics construction where soldering is undertaken. It provides a mechanical and electrical joint that is essential to keep components in place once a circuit has been assembled.older is of course used in plumbing. The type of solder used for electronics usually contains 60% tin and 40% lead. This is often known as 60/40 solder. It is what is termed a Eutectic Mixture.