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Michael B. ? ?
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Help me Solder a TSOP 40 pin chip Ah!! >_<

  • Needs a date

  • Needs a location

  • I wrecked 1 chip already :/// Does anyone have the skill and equipment to do such a job?? I certainly cannot get it done with my radioshack iron, but I also did not use any of that "solder flux." I really don't know who to call.. but I have ordered different pcb for my chips so I can wait a couple weeks now.. I really need someone who can do this tho..

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  • Brett R.

    Call Cirtech [masked]-2200. A job like this should take them a few seconds. I brought in a board and just looked away from the technician for a few seconds. Before I looked back they had taken a chip that was put on my board incorrectly (180 degrees off), and put it on correctly. I've always had good work done there from prototypes to 10's of thousands of boards.

    April 10, 2015

  • Chuck T.

    I used to do this in college. I'd dome the pads with a small bit of solder paste, then I could stick the IC in place, and pin it down by soldering the corner pins. Then I could solder the rest of the pins by walking the iron down the pins.

    The skill to this technique, is placing the right amount of solder to make a connection, but not form a blob that bridges pins. Hint: only a very small amount of solder is necessary. And when I mess up, I just pull out the solder wick. Solder Wick is a godsend, until you burn your fingers off trying to desolder a heat sink.

    March 6, 2013

    • Michael B.

      Thanks for the reply Chuck. My time is better spent actually implementing the electronics instead of throwing my time at just sticking the component on the board. This actually is what got me to put down my project for > 1 year. plus it's an old school hack job, but still it's a great project I would love to continue it. If I am smart I will stay away from this project until I am out of school, or better, never touch it again :)

      March 10, 2013

  • g.andrew.stone

    there's a meetup proposal with lots of interest so it'll be that one. Probably at sprout&co Davis Square

    February 9, 2012

  • Michael B.

    Ok I am planning on it! any idea when and where the next AVR meeting will be?

    February 9, 2012

  • g.andrew.stone

    No guarantees of course but yes I solder SMT stuff like that all the time. The QFN breakout board shown in the "what's new" section of the upper right side of main page here is my work.

    February 3, 2012

  • Michael B.

    yes I have put it off for awhile. I don't have anymore money to expend on new tools. If i brought my board and chip, u could solder it??

    February 1, 2012

  • g.andrew.stone

    Are you still struggling with this? If so check out: http://effluviaofascatteredmind.blogspot.com/2011/09/diy-surface-mount-workshop.html
    I can help you next time we meetup...
    If you are all set, maybe delete the meetup request

    January 24, 2012

  • Ed

    You might want to try solder wick. The Sparkfun soldering tutorial explains it pretty well. It lets you remove extra solder that bridges pins so you don't have to worry about soldering pins individually. See http://www.sparkfun.com/tutorials/96 If you go to project night at Sprout you can try it pretty easily.

    October 24, 2011

  • Kevin G. O.

    Too bad you missed the surface mount soldering workshop, but basically using the method presented there, it's a piece of cake. You need some paste flux and solder paste and a toaster oven. Sparkfun has a simlar tutorial. You don't really need fancy temperature control.

    September 28, 2011

  • Michael B.

    sorry, i know my cry for help is not quite a "meetup" (unless it somehow turned into one that is cool), but I really have no connections in electronics and don't know who to turn to. thanks.

    September 23, 2011

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  • Michael B.

    Hi, I really need help soldering a TSOP 40 pin flash memory chip to a small custom board I... more

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