EEVblog #186 - Soldering Tutorial Part 3 - Surface Mount

too much talked

With a lead-free HASL PCB, is it OK if I then use lead--based solder for making the joints?

one word of improvement to your tacking two terminal components method, be careful with the tweezers not to grab the smd with the tweezer prongs extending below the bed of the smd (hard to see from above as you get a 2D vision, look from the side of the smd) this will prevent the smd from correctly bedding with the pad EVEN if it will solder you create a compromised mechanical joint that can become a cold joint with vibrations and age.

how do we remove/install those big capacitors soldered into a large solder pool on a speed controller?

Это первый человек у которого жало паяльника чистое.

Great tutorial - thanks! :)

It's always easy when you see a professional doing it.

❤❤❤❤❤❤❤❤❤

Im waiting for the BGA soldering tutorial

What is the size of the solder in the video????

I was having a sip of coffee when you said "Stevie Wonder could solder this it's so big...." and I laughed so hard coffee came out my nose.

Thanks for making this approachable. Very glad you showed both how to do i right and what can go wrong. Having a something to compare on your own is invaluable!

Put some flux...

A classic video. Exactly how I got my start: by watching the best on the Internet! Thank you for continuing to make great videos!

Sorry for necroing this old video, but this guy is really intimidating to start surface mount soldering ! 😆

Thank you.

używaj dobrego topnika, słabe te luty..

I love electronics

Thanks Dave

Legendary surname Dave!

I've modded several PS2s in the early to mid 2000s with success. However, recently as of a week ago (been 12+ years since I last soldered), I made the mistake of perhaps of both pushing down too hard, or had the heat cranked up too high on my iron but, not only did I bend pins on the DVD driver chip but I also lifted 3 pads and it's toast now. The DVD driver chip is too large and is in the way for me to track down any of the traces to do wires to. But wow, I think it's the .5mm pitch pin pattern on this particular DVD chip and I was under a microscope. It continuously bridged the pins even with a mass amount of flux and my hands are just too shaky anymore. But I love watching others solder

It's great that you are showing this for everyone, because everyone fears it so much, but these joints would never pass rework QA in most reputable places.

You should really get a finer tip (one with a slight angle at the end will make this heavenly to do, but don't put that bend in yourself, because you'll crack the nickel coating) and use steel picks to "drag" out solder that is shorting close pins. Solder wants to flow toward the heat, and the steel will stay cool enough long enough to allow this, allowing you to move fast with just quick reflowing. Using the wick is a very bad idea for most of these pads. They lift way too easily after several re-heats, especially with such an over-sized tip. And, that wick will spread the heat to other pads, at the same time. And, there is just a tendency for people to pull the iron away before the wick, cooling the solder just enough to start to solidify, and thereby yanking on the pads.

Also, keep adding resin flux, each re-heat. The flux helps to de-ox the surfaces. Clean-up is just a fact of life, when doing this stuff. Back in the day, we would use Freon with an acid brush and special tissue wrapped around it, which was really fast and easy... alcohol is the second best thing, though, now that Freon is outlawed.

Also, leaving the lifted pad in place and relying solely on that joint is not the best idea. A proper tracewire fix would be recommended once you have a lifted pad. The damage is done and unknown. Don't count on things continuing to work well or for long once heated/cooled enough, after damage has occurred.

These are relatively easy, I missed the SMD Elco's... Removing as well as placing.

can you make some lcd screens for Game and Watch

Can you tell me what is the camera you were using? I could see more clarity.

Vote up, nice video clip, thank you for sharing it :)

Is this link to bare pcb used for this video?

What do you think about nonleaded solders ?

Your videos are first class chap

This gives me hope of repairing my old school IPod classic and a ps4 I was given due to a broken hdmi port.

stevie wonder could solder this... :D

This is a gem. I ruined 2 boards and 3 chips until I decided to browse yt and found this.

Excellant sir
for explaination

how to do it with 88i6745-TFJ1

Flux is everything!

Another great video, thanks.

nice . which microscope have you used in the video

Good

-10 years later: Thanks for this!

Took a Pace certified surface mount class in college and some of the solder connections would not meet the certification requirement. His technique is spot on. Recommend cleaning pads and adding flux earlier in the process, last I checked flux isn't that expensive. Excellent drag attempt, try using a smaller tip.. Decent solder paste example. 1st 2 pins looked lacking but was corrected prior to adding heat. ADD FLUX, ADD FLUX, ADD FLUX.

any recommendations for the flux? ideally a no-clean one!

what size is that chisel tip?