Extracting SMD Integrated Circuits

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Introduction: Extracting SMD Integrated Circuits

This shows how to extract dual sided SMD ics from a circuit board using a soldering iron and no other special equipment.

Step 1: The Setup

The process has been documented here:

http://forum.s1mp3.org/viewtopic.php?t=1592&start=15

It involves soldering thick copper wires to the two leaded sides of the integrated circuit so that all the leads receive the heat from the iron. Light pressure excerted upwards on the chip will cause it to snap away from the board as a soldering iron is applied to heat the entire side.

This is then repeated for the other side and thus we have a chip free of the board.

All that remains is to clean the board and chip for reuse.

Just watch the movie for a demonstration. The picture below shows the sophisticated lighting, camera and computing machinery involved in filming that video.

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    18 Comments

    do not try this at home. I make smd boards all the time and repair them. This will more than likely kill ur IC (assuming the is wasnt dead to begin). If you want to start doing smd work invest in a rework station if u want to make boards from scratch buy a reflow oven.
    Back to the video if you do not have the right equipment, once you have taken the chip off how are you going to put it back on again????? Just a thought

    Do you have this video in a different format, I can't play it on my linux machine.

    open with dragon player.. works running mandriva.. rpm the free download if you don't have it

    Video updated, should play now.

    Shall post it in a different format. Thought LV was making his usual pointless fuss.

    could i update my Ram by doing this?

    Instead of making a link, wouldn't it be easier and mor conveniant to actually make THIS the instructable?

    i understand how it works, just confused how it doesnt fry your IC. im new to electronics but arent IC's heat sensitive? and yes, the lead will diffuse the heat temporarily, but your heating it to the same temp as the iron arent you?, so it will still try the IC? im really confused, please explain jon

    the first 555 i removed from a PCB was so hot after the removal that it fell on fiberglass an melted it so... lol it isnt that sensitive, oh and it worked after that ;)

    IC's are rated to withstand the temperature of soldering (for 5 seconds or so). So, if you are doing it properly, the heat stresses are no different than when soldering it into circuit. Heat differentials - in which one lead is cold while the other is at a high temperature - is more detrimental, causing differential expansion and possible separation of the chip from the moulded case. The chip shouldn't be reaching the temperature of the iron. It should only be heated to somewhere around the melting point of solder.