With regards to soldering .5mm pitch parts: I've never done that professionally or as a hobby.
I don't see myself doing this at home. On Fri Mar 25th, 2011 1:07 PM EDT Bob Camp wrote: >Hi > > > >Just a show of hands sort of thing. It comes up each time we talk about >projects and never really gets answered. Rather than trying to work it out >as a part of a project, let's see if it can be addressed by it's self. > > > >How many people are willing to solder up a project with multiple 0.5mm >spacing >=144 pin package IC's on it? There's a typical package drawing at >the end of: > > > >http://www.national.com/ds/DP/DP83816EX.pdf > > > >I'm sure it's a "what's in it for me?" sort of question. Let's assume it's >just neat piece of bench gear rather than a home grown cesium standard for >$100. > > > >I don't think this part really matters, but it might to some people. Say >each chip is well below $100, but above $20 each. There might be only one >part like this on some projects, but for the sake of this poll, let's say >there are two or three of them. Net is roughly 250 to 500 pins like this to >solder, on some number of packages. It's part of a project that will cost >you $250 to $500. > > > >I'm not talking about opinions on weather it can or can't be done. It >certainly can be done and is done every day. What I'm asking is - would you >buy a bag with the parts all in it? If you do are you going to put it >together in a reasonable amount of time? Reasonable time might mean >different things to different people. For the sake of completeness, yes you >also need to get it working after you assemble it. > > > >Next layer (you knew there had to be more) - have you done it before >(anywhere)? / done it in the last 2 years (at home)? / are you set up to do >it today (at home)? > > > >I'm not trying to get into "how would you do it / what would you need / >could you farm it out". Those are also neat questions, but not part of this. > > > > >I'll start off the voting (and yes the answers are out of order): > > > >Done it in the before - yes. > > > >Done it in the basement / last 2 years - no. > > > >Set up to do it in the basement - yes, but not set up well. > > > >Would I buy one - done that before. Likely would again. (counts as a yes). > > > >Would actually do it in a reasonable amount of time - unlikely. (That >counts as a no). > > > >Any more votes? > > > > > >Bob > > > > > > > >_______________________________________________ >time-nuts mailing list -- [email protected] >To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
