Hacked Gadgets Forum

November 11, 2011

Laser Soldering System

at 5:51 pm. Filed under Insane Equipment

laser-soldering-system


Laser Soldering is an interesting concept, instead of heat from an iron or hot air heat a laser with a specific pattern is used  to heat the lead, pad and solder to create a perfect solder connection. I can imagine the next generation of soldering system where the pick and place machine will both place the part on the PCB but it will also immediately fuse it in place permanently.

Image source, video source.



 

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9 Responses to “Laser Soldering System”

  1. mikheil Says:

    wish i had one
    with this i would try to make me new smart phone.

  2. Baker Says:

    Man, that is sweet….oh the possibilities

  3. Rowdy Says:

    I want one. De Soldering one as well.

  4. Al Says:

    This is very cool and could make a fantastic automated process of pick/place/fix. However we would have to loose a bunch of packages like QFN, paddled smd chips and BGA to name just a few.

    regards
    Al

  5. stunmonkey Says:

    Yag Laser Welders are pretty common and inexpensive nowadays for jewelers, watchmakers, and eyeglass repairers just for starters, and those are doing titanium, gold, stainless, and other really tough to bond materials.
    I can see this working really well for soldering, which is fundamentally a less tricky and far less troublesome process that requires far less energy input and lower temperatures. Combining it with pick-and-place should be trivial, and likely common in the next couple years. Surprised it hasn’t come about sooner actually.

    This should open some awesome possibilites.

  6. Caleb Says:

    Pause the video at 1:58. This process needs some fine tuning because the quality of most of these connections are barely acceptable and would only be suitable for low end electronics, but the solder joint at 1:58 is unacceptable at any level. I’m a 2m cert tech and I can definitely say that none of these connections would pass inspection for high end CCAs. It’s a really cool idea though, and I’m sure with a little more fine tuning it could make much more reliable joints.

  7. Alan Parekh Says:

    Hi Caleb,

    Interesting observation, I see what you mean. Is that because the heating was not done for long enough to heat the pad and component lead enough instead of just the solder?

  8. ElectroNick Says:

    Given how shiny the molten solder is, I wonder how they solve the issue of reflection? Sounds like more energy would get lost through reflection than absorbed, especially when the solder starts flowing. Intriguing…

  9. Caleb Says:

    Alan,
    I’m not exactly sure….one of my techs sent me the video and we were talking about it. It definitely has something to do with the fact that heat is being applied and removed so rapidly. I do tend to agree that although the solder is brought to temp, the contact surface is not heated adequately before the laser is removed. The surface that is left is often what you see when you reflow solder repeatedly. But without knowing the physics of it, its hard to say exactly. Anybody’s guess!

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