Larry, > ---- > I am intentionally over caution when soldering chips > directly to the PCB. Maybe more than I need to be. I > have never fail one soldering it in (well we won't mention > that time I stupidly soldered them in backwards). I've not known an IC that I've soldered to fail (but this is with 6 mo. since my first kit assembly - not much time), but I'm still concerned from the point of view that I may have damaged it slightly and it does not immediately fail, but will in the future. > But, I always solder the two corner pins and let the chip > cool wheil I go to 2 corner pins as I insert the next chip until > I have them ALL on the PCB. Then I go back and solder two > more pins on each one, rotating through so each chip gets > some "heat rest" as I make my rounds. I do this until I have all > pins soldered. > This is nice to know since this is the approach that I have also taken except that I solder one pin on each IC in the sequence of IC's. In my semi-paranoid state I also make sure that the IC is not 'hot' before I solder each one. Maybe overly cautious, but I suppose it is 'peace of mind' I'm after. The best instruction in Paul's kit instructions is the one that assembling is not a time race, but a matter of quality (or something like that). May be I overdo it, but that phrase is always in the back of my mind when I am assembling. Interesting and useful topic today! Jeff
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Re: [motm] Sockets vs. soldering ICs directly to PCB?
2001-03-09 by Jeffrey Pontius
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