On Fri, Aug 31, 2018 at 12:41 PM, Jerry Gaffke wrote:
Parts do not come with solder on the pins.
When manufacturing, the usual process is to lay a stainless steel mask over the board with holes cut into it for each pad,
then squeegie on some solder-paste, which is solder with the consistency of play-dough.
Then auto-insert all those dinky R's and C's and transistors with a pick-and-place machine.
Send the board through a heat process of some sort.
Your right but most part have either tin or gold plating that takes solder like a fish to water.
It takes very little added material to stick them down.
Me I use really fine solder 0.020 and a moderate tip iron maybe .12"? unless then are
very close to each other its nothing.? ? I can lay down parts very fast.? Come with practice.
Having a "thumb" (check around the net for ideas) can be handy for some parts.
Allison
