Maybe it's just me, but there's something really trippy about the way that microscope is set up and how well it is lit, it looks like we're watching 3D rendered stuff but it's actually real life
I'd say it's mostly due to the focus point being stationary when both the microscope and the board are moving. Looks like the focus is at the center of the 3D rotation. Also the lack of vibrations. It really does look like a 3D render lol
exactly, it looks like orbiting virtual camera around 3d model in blender/3ds max.... The mechanical precision of this makes it look like a 3d environment. This just not happens while hand operating camera or even with simple camera rig therefor the motion itself sells it as a 3d. Funny thing is, it can happen in reverse. Motion capture human operated camera apply it to fairly photoreal scene and motion itself helps to sell that 3D render as a real video.
Which is likely to be illegal to project it in a company without the business license xP Same as restaurants having to pay for using the music of some artists xP
Even though I may never own a microscope quite as nice, I'm all the wiser seeing the reflow in such detail. Glad to have spotted this video from Hackaday!
@@d4t4b4s3f4c3 It can be done. The question is whether you are willing to pay for expensive servos and/or calibration kits for the optic AI. OR do you have the knowledge to write your own?
It's always nice to see someone with this much attention to detail. I have a soldering certification that is even more stringent than what NASA requires. Towards the end of the course we solder a 140 pin flat pack using a soldering iron only with a 0.5mm pitch by hand and the expected quality for certification is as you described where the solder flows up a specific ammount at the front and back of the lead, but we also look for stress cracks, pitting, deweting and the tiniest traces of flux. Basically, the solder joints all end up with a mirror finish to it.
Its Micro and Miniature Soldering its used for repair of mil spec items where a failure of a solder joint could cause 100 million dollars to go up in flames in an instant. We even learn how to excavate multilayer CCA that somehow have a hole in them and replace the copper traces by hand and epoxy back the layer one layer at a time. Even the epoxy is closely examined with a microscope for any trapped bubbles in the 10 micron scale that could compromise the insulation performance of the epoxy.
The quality of this video is just out of the charts. You have no idea how educational and soothing it gets. Thanks for the professional demo with this amazing 3D microscope! Really eye opening!
It always amazes me how robust the reflow/SMT process is. With the advent of cheap PCBs in a few days, the world of SMD components is at your fingertips!
I have been in electronic and computer repair for more than 35 years, this gentleman demonstrated his great knowledge in soldering and I still learned something new from this video. Great job.
I have just begun my journey into the realm of electronics and soldering, so your video helps me IMMENSELY to understand why my solders look the way they do. Thank You!
6:10 This is something that many of us know, but few teach. Touching the solder to the iron as a catalyst to get it flowing. Once you have a little liquid solder, all is well. You can really overheat the pad/component trying to get the solder to melt without touching the iron.
Soldering instruction is often incomplete ---- they always tell people not to touch the solder to the tip of the iron but to apply it only to the parts being connected, which invariably leads to poor thermal transfer from the tip of the iron, which means that you end up applying heat to the connection for so long that you can damage the board, lifting and delaminating foils or, in the case of the header pin with too much solder shown here, melting the plastic strip and pushing the pin off-center. Anyway, I have been soldering for nearly 55 years, and for as long as I can remember I have done it the way it's shown in this segment of the video, where you touch the solder to the tip of the iron just for a second and then move the solder away to the other side of the connection.
Due to the variability of solder joint types and the overall complexity of the topic, this isn't something that I would recommend learning about from a video. A video that covered everything would be days long. If you are serious about learning about this, I recommend buying the IPC-A-610 book.
Congratulations for the video. I've been working on Eletronics Industry for almost 20 years and I can say I'm an expert of SMT process. And this is the first time I see in UA-cam a video with so much quality showing soldering parts. Congratulations again!
There's always been something satisfying to me to solder and get beautiful solder joints like these. In my job, I routinely soldered 100+ pin flat packs by hand and I always took pictures of the best ones "for the album", as Wallace always said to Gromit.
Hi Robert, this is so unbelievable, in my 30 years of soldering I never imagined it to be so beautiful! 💓. Thank you! I hope to check out some more of your videos when I get the time.
Thanks! Brings back memories. I worked in the board shop at Compaq Computer Corp for a couple years back in the 90s. I used to repair boards and replace connectors and chips by hand--even the ones with hundreds of legs!
Its a far cry from the soldering of the mid 90s when I was doing board level repair. It was like using a 2x4 as the soldering gun and a garden hose for solder. Climbing up the pins is a great way to use up the extra solder and and avoid it connecting to the next pin. Excellent information!!! Sub, like and obviously a comment.
Used to work in an Italian company as a technician and later SMT programmer. Wish we were together in that industry back then. You explain things while most of people hate to share knowledge
Mate, love the video!! Just new to soldering so I had no idea you could use microscopes in this way. I love the positive comments that everyone’s leaving, also I’m learning a lot of cool tips so thanks for posting and thanks to those who pasted great replies!
Finally a video that shows the kinda work I do on a regular basis! I've been repairing electronics under a microscope for about 10 years now. This is extremely well produced. I've personally never been able to examine BGA soldering from that kind of perspective before, since I'm usually staring at the chip from above through a microscope and positioning my tweezers to ensure the chip doesn't fly away when I'm using hot air. I see the end result though, as I tilt the board to examine each side of the chip to ensure, at least along the edges, there aren't any complications. Very impressive stuff!
At 06:05 you should place the iron and the solder at the same spot on the pin simultaneously, the solder will help carry heat into the pin. You should also remove the iron and the solder at the same time, or the iron very shortly after the solder. If you leave the iron on too long you boil off the flux and the solder wants to "follow" the iron off of the part (makes little solder-sicles). When you see the pin push free to the left it indicates that you held the iron on the joint too long and melted the plastic holding the pin on the other side.
I was taught differently. Put a drop of solder onto the tip of your iron and add more solder from the other side. This avoids „cold“ joints brcause The additional will only melt if both the pin and the eye are both enough the be wetted by the solder.
@@MrAranton I think the same result is obtained either way if you do so at the joint. If you do so too far from the pin the flux will boil off the iron before you get to the joint. You just don't want to hold a "dry" iron to the joint while waiting for solder to melt on the other side of the connection. The iron, solder, and flux all work together to get a good joint.
The graphing by the microscope application is super cool Solder rise wicking up the side walls of the pins is a super important topic I didn't know about until recently and I'm glad you highlighted that in this video.
Yep, I used to repair circuit boards that used surface mount technology, including chips with over 100 leads. It would take me about 10 minutes to replace one of those. One thing I had in my tool kit was a dental pick, which my dentist gave me. It's great for removing whiskers of solder. BTW, if you're using acronyms, you should say what they are the first time you use them. For example, while some may know that BGA means Ball Grid Array, many don't.
At 7:07 , the header pin actually goes a little crooked and stays there because heat was applied for too long and the plastic strip on the other side softened and melted, allowing the pin to shift as the soldering iron puts excessive sideways pressure on it. When the solder hardens, you can see that the pin is a little off-center.
Hey Robert, have you done a video on the microscope you are using in this video, i looked through your channel and did not see it. I would love to see the details in what you can do with it, how it works, where you get one and how much it costs. Larry
Hand soldering: it looks like you shouldn't keep that much heat, so the pins are starting to wobble in melting plastic holder. I often rise up iron's temperature to make it solder faster, so plastic have no time to melt. Also proper surface tensioning flux helps to fill all gaps with solder fast. Thank you for making and sharing these great shots! Really helps to better grasp on what's happening over the pads
Yeah, I saw that header pin shift sideways when the (unseen) plastic strip softened and melted. Unfortunately turning up the temperature of the iron isn't a very good solution because the higher temperature tends to quickly oxidize both the connection and the tip of the iron, and so neither one wants to really wet to the solder unless you use extra flux or the flux contained within the solder is particularly active and effective. It's better to make sure that the tip of the iron is scrupulously clean and freshly wetted with a thin coating of fresh solder, and the connection being soldered similarly needs to be oxidation free. Under those conditions, if you're still having problem then you can try turning up the temperature of the soldering station a little bit. It's also important to use high quality, name brand tips in your soldering iron because most of the bargain-pack tips sold directly from Asia or China are made of iron or steel, not plated copper, and have poor thermal transfer characteristics. High quality, plated copper tips will be attracted to a magnet only at the pointy business end where they are intentionally plated with iron to resist the dissolving effects of molten solder and flux. Cheap tips will invariably be attracted to the magnet throughout and at the back end of the tip. I posted a video about this on my channel recently.
This is really nice to watch. Thank you. I have just one remark here, if the solder joint becomes dull when it cools down, chances are it was overheated. Properly soldered contacts usually stay shiny.
Unfortunately, leadfree solder is an all-too-frequent exception, where finished connections often look dry, grainy and dull ( like the BGA soldering shown). Perhaps it looks better if you're using one of the fancy and expensive soldering stations that have a hose where you hook up a nitrogen tank to it...... but if a solder alloy is so finicky that you need to flood the area with inert gas to keep oxygen out of the connection, then it's not really practical for home hobbyists......
Thank you for sharing this! That microscope is quite a beatiful tool and you gave us all the chance to take a look at some interesting aspecst of soldering! 🙏
as a beginner to microsoldering with basic knowledge, I'd like to say that your microscope is hot af! my new dream. And also I learned something from this video, maybe next time I try to BGA recall a band chip, I'll be able to do it properly finally!!!
Thanks for a cool video. To be picky, the lead free soldered joint looks like a 'dry' joint. Also, when hand soldering, try adding a spot of solder to the iron before putting it to the item to be soldered, then add more solder to the side opposite the iron, this will stop the tendency to push too hard with the iron because the heat transfer from iron to joint will be faster.
I do casetype 0201 up to all kinds of THT parts and EMI shields manually at work. The smaller parts under a stereo microscope. Even after all those years and practice there is always a certain challenge with how the PCB's are designed (thermal relief, numbers of GND layers, etc.) to get a reasonable good solder result. The Microscope has become my favorite and necessary tool to work with SMT and quality control in general. This Microscope system however, is very advanced. Love the possibility to change the viewing angle. I am a bit jealous right now, gotta say. ;-)
Great video. I design industrial controls for a living so I wouldn't need one of those Keyence microscopes, but I got to play with one at Hannover Automation Fair one year and they are awesome. Looking forward to watching more of your videos as do also design circuit boards as a hobby.
That's amazing photography. I was hoping for a QFN but I guess even this would not see very much. I flow QFNs on a kitchen hot plate at home. Thanks for the cool video.
Reminds me of my old job, did repair all kinds of mainboards (PC's), like Asus, Abit, MSI, Aopen, Gigibyte. Did replace all kind of chips and other components like CPU, PCI, AGP, USB you name it sockets. Had a great time back then ;) Anyway great video.
Nice! As I only know about hand soldering, I missed the part how the PCB is heated while soldering. Is it heated locally? How is overheating damage to electronics prevented? Will other components not come loose while trying te solder a new component?
How do you know that the pins underneath are soldered properly? Do the chips have scan path diagnostics to verify soldering? Verifying no shorts to nearby pins?
what are you using to solder especially the QFN? I'm guessing at least an under heater, but surely that can't alone be enough? so hot air from above? it didn't look like it because i couldn't see any optical distortion from the heat. but perhaps it's too magnified to see it.
Yes, they are prefabricated balls of solder. You can even buy them, just like soldering paste, in different sizes for "reballing" a chip if you need to rework a bad solder job.
Very cool! That is one hell of a scope! I tried to look at pricing but it bugged me for my email then didn't work when I gave it. Oh well. I'd imagine these are quite pricey. Is there a software subscription license for the software component?
Even with the correct amount of solder paste you can get the paste spreading excessively if you are not careful with preheating. It takes a considerable amount of time to properly preheat so that any volatile constituents of the flux are driven off slowly and don't boil. Proper preheating and limited rate of coiling are also critical to reliability with multilayer ceramic capacitors. With leadless IC packages the part of the "pin" that is easily visible does not need to be neatly soldered in order to produce a reliable joint. This part appears to be bare copper because that is exactly what it is. Low-activity flux, which includes almost all "no-clean" types, may not be adequate for good flow on the bare copper. Added to that is the possibility of some smear of the plastic from the package on the bare copper as a result of the trimming process.
@@user-ns7qw9hd5y, the PCB is coated in "solder mask" or "solder resist" to prevent solder from sticking to it. Surface tension of the molten solder tends to make it form into a ball when it's sitting on something like a coated PCB that it cant wet to, and the only reason that a solder ball might stick to the board is because of the flux acting like glue when it cools.
I find it quite interesting to see the capilary action of the liquid solder traveling on the leads and pads-it's not really something that one would think about, but makes complete sense when you do think about it. After all, capillary action doesn't care what liquid it's acting on, so molten metal is as good a liquid as any!
7:56 That solder sphere looks amazing. You made your own BGA 😂 And man, that microscope is insane. I’d have all kinds of fun with it. Must be worth more than my house.
Maybe it's just me, but there's something really trippy about the way that microscope is set up and how well it is lit, it looks like we're watching 3D rendered stuff but it's actually real life
I'd say it's mostly due to the focus point being stationary when both the microscope and the board are moving. Looks like the focus is at the center of the 3D rotation.
Also the lack of vibrations.
It really does look like a 3D render lol
They are probably using similar acceleration curves to reduce motion sickness that 3D renders do.
This is because of the focusing. The background and foreground are out of focus. This is called the tilt-shift effect.
exactly, it looks like orbiting virtual camera around 3d model in blender/3ds max.... The mechanical precision of this makes it look like a 3d environment. This just not happens while hand operating camera or even with simple camera rig therefor the motion itself sells it as a 3d. Funny thing is, it can happen in reverse. Motion capture human operated camera apply it to fairly photoreal scene and motion itself helps to sell that 3D render as a real video.
@@Q36BN doesnt help that multi-capture image blending isnt perfect yet, and artifacts will always be an issue.
This video is way cooler than I expected.
Does it imply low-melting solder? ;)
@@u2bear377 That is such a 'Dad-joke' :P
Hotter !😁
Finally some high quality footage of reflow in action. You have no idea how many manufacturers are going to use this footage for training.
Which is likely to be illegal to project it in a company without the business license xP
Same as restaurants having to pay for using the music of some artists xP
You caugth me
@@WerewolfMaster good luck enforcing that
Even though I may never own a microscope quite as nice, I'm all the wiser seeing the reflow in such detail. Glad to have spotted this video from Hackaday!
You are everywhere, sir.
With a modern phone with a 50mp camera theres gotta be a way to use the macro function to get a poor mans version of this
@@d4t4b4s3f4c3 It can be done. The question is whether you are willing to pay for expensive servos and/or calibration kits for the optic AI. OR do you have the knowledge to write your own?
@@ragesmirk Heh, I just have way too many hobbies and spend way too much time in my RSS feeds :D
It's actually reasonably priced, I was quite surprised.
It's always nice to see someone with this much attention to detail.
I have a soldering certification that is even more stringent than what NASA requires. Towards the end of the course we solder a 140 pin flat pack using a soldering iron only with a 0.5mm pitch by hand and the expected quality for certification is as you described where the solder flows up a specific ammount at the front and back of the lead, but we also look for stress cracks, pitting, deweting and the tiniest traces of flux. Basically, the solder joints all end up with a mirror finish to it.
What in the... What's the certificate called?
What would this level of professional soldering be used for?
@@bryceshaw06Just guessing, but prototyping and fixing some one off mil.spec or medical device.
Its Micro and Miniature Soldering its used for repair of mil spec items where a failure of a solder joint could cause 100 million dollars to go up in flames in an instant. We even learn how to excavate multilayer CCA that somehow have a hole in them and replace the copper traces by hand and epoxy back the layer one layer at a time. Even the epoxy is closely examined with a microscope for any trapped bubbles in the 10 micron scale that could compromise the insulation performance of the epoxy.
@@Guardian_Arias This is the soldering quality I strive for in my work, where would you recommend for training?
The quality of this video is just out of the charts. You have no idea how educational and soothing it gets.
Thanks for the professional demo with this amazing 3D microscope! Really eye opening!
It always amazes me how robust the reflow/SMT process is. With the advent of cheap PCBs in a few days, the world of SMD components is at your fingertips!
I have been in electronic and computer repair for more than 35 years, this gentleman demonstrated his great knowledge in soldering and I still learned something new from this video. Great job.
When you rotate the view like that, board looks like a pretty damn good 3D model.
so it looks less good than reality should look? If it was a 3d model that detailed wouldn't it be an exact 1:1 replica?
yea if you shared this somewhere people would comment that it doesnt look realistc enough cuz its too clean haha
I have just begun my journey into the realm of electronics and soldering, so your video helps me IMMENSELY to understand why my solders look the way they do. Thank You!
This camera/scope is incredible! Cool video.
6:10 This is something that many of us know, but few teach. Touching the solder to the iron as a catalyst to get it flowing. Once you have a little liquid solder, all is well. You can really overheat the pad/component trying to get the solder to melt without touching the iron.
Soldering instruction is often incomplete ---- they always tell people not to touch the solder to the tip of the iron but to apply it only to the parts being connected, which invariably leads to poor thermal transfer from the tip of the iron, which means that you end up applying heat to the connection for so long that you can damage the board, lifting and delaminating foils or, in the case of the header pin with too much solder shown here, melting the plastic strip and pushing the pin off-center. Anyway, I have been soldering for nearly 55 years, and for as long as I can remember I have done it the way it's shown in this segment of the video, where you touch the solder to the tip of the iron just for a second and then move the solder away to the other side of the connection.
ALWAYS keep your tip wet! That was actually the first thing I was taught in soldering lol
your example for too much solder on the tht lead is sometimes exactly what is required on high voltage stuff where you have avoid sharp edges
The one time in soldering where the bigger the blob really is the better the job.
great info, i did not know about this..
I never would have thought of that. I know what sharp edges do with high voltage, but again I wouldn't have connected the two here.
the question is what voltage and what size of size/leads/pitch, no?
Is soldering ever allowed in high voltage applications?
What a good reference-able video on the quality of solder joints.
Due to the variability of solder joint types and the overall complexity of the topic, this isn't something that I would recommend learning about from a video. A video that covered everything would be days long. If you are serious about learning about this, I recommend buying the IPC-A-610 book.
Congratulations for the video. I've been working on Eletronics Industry for almost 20 years and I can say I'm an expert of SMT process. And this is the first time I see in UA-cam a video with so much quality showing soldering parts. Congratulations again!
There's always been something satisfying to me to solder and get beautiful solder joints like these. In my job, I routinely soldered 100+ pin flat packs by hand and I always took pictures of the best ones "for the album", as Wallace always said to Gromit.
Hi Robert, this is so unbelievable, in my 30 years of soldering I never imagined it to be so beautiful! 💓. Thank you!
I hope to check out some more of your videos when I get the time.
Thanks! Brings back memories. I worked in the board shop at Compaq Computer Corp for a couple years back in the 90s. I used to repair boards and replace connectors and chips by hand--even the ones with hundreds of legs!
Me too on Point of Sales terminals.
Just wonder, how much kidneys I should sell to buy this microscope?
Just one (depending on current kidney prices) if you're ok with a second-hand one -- around $3000. New, both kidneys if you're lucky -- about $30,000.
@@KNfLrPn Nah, this is significantly more. Probably closer to 100k than 30k.
For reference, I've got my Keyence VHX-6000(1 or 2 generations older than the one from the Video) for around 15k USD
The number of kidneys sold should not be a problem if you are not selling your own...
@@666aron thanks for idea. Hope, my neighbors won't mind it.
Its a far cry from the soldering of the mid 90s when I was doing board level repair. It was like using a 2x4 as the soldering gun and a garden hose for solder. Climbing up the pins is a great way to use up the extra solder and and avoid it connecting to the next pin. Excellent information!!! Sub, like and obviously a comment.
Dude, this is the FIRST video of yours I've ever come across. Unique perspective on soldering, thank you!
Robert this is very handy for both designers and quality departments in companies that need to inspect CCAs. Thank you!
Used to work in an Italian company as a technician and later SMT programmer. Wish we were together in that industry back then. You explain things while most of people hate to share knowledge
What is the black magic f*ckery that we see @1:29? Is that a photogrammetry model? I feel like a complete noob now, thanks.
Mate, love the video!! Just new to soldering so I had no idea you could use microscopes in this way. I love the positive comments that everyone’s leaving, also I’m learning a lot of cool tips so thanks for posting and thanks to those who pasted great replies!
I'm so glad you got access to such a sophisticated microscope and took the time to share this with us.
Finally a video that shows the kinda work I do on a regular basis! I've been repairing electronics under a microscope for about 10 years now. This is extremely well produced. I've personally never been able to examine BGA soldering from that kind of perspective before, since I'm usually staring at the chip from above through a microscope and positioning my tweezers to ensure the chip doesn't fly away when I'm using hot air. I see the end result though, as I tilt the board to examine each side of the chip to ensure, at least along the edges, there aren't any complications. Very impressive stuff!
I would say, this is the most informative video on internet right now
At 06:05 you should place the iron and the solder at the same spot on the pin simultaneously, the solder will help carry heat into the pin. You should also remove the iron and the solder at the same time, or the iron very shortly after the solder. If you leave the iron on too long you boil off the flux and the solder wants to "follow" the iron off of the part (makes little solder-sicles).
When you see the pin push free to the left it indicates that you held the iron on the joint too long and melted the plastic holding the pin on the other side.
totally agree and also learned something new from you! thank you! :)
I was taught differently. Put a drop of solder onto the tip of your iron and add more solder from the other side. This avoids „cold“ joints brcause The additional will only melt if both the pin and the eye are both enough the be wetted by the solder.
@@MrAranton I think the same result is obtained either way if you do so at the joint. If you do so too far from the pin the flux will boil off the iron before you get to the joint. You just don't want to hold a "dry" iron to the joint while waiting for solder to melt on the other side of the connection. The iron, solder, and flux all work together to get a good joint.
Beautiful photography! These scopes are amazing and your soldering examples are great.
The graphing by the microscope application is super cool
Solder rise wicking up the side walls of the pins is a super important topic I didn't know about until recently and I'm glad you highlighted that in this video.
Yep, I used to repair circuit boards that used surface mount technology, including chips with over 100 leads. It would take me about 10 minutes to replace one of those. One thing I had in my tool kit was a dental pick, which my dentist gave me. It's great for removing whiskers of solder.
BTW, if you're using acronyms, you should say what they are the first time you use them. For example, while some may know that BGA means Ball Grid Array, many don't.
At 7:07 , the header pin actually goes a little crooked and stays there because heat was applied for too long and the plastic strip on the other side softened and melted, allowing the pin to shift as the soldering iron puts excessive sideways pressure on it. When the solder hardens, you can see that the pin is a little off-center.
Hey Robert, have you done a video on the microscope you are using in this video, i looked through your channel and did not see it. I would love to see the details in what you can do with it, how it works, where you get one and how much it costs. Larry
Such microscopes usually cost some $20-30k. Companies like Keyence produce and sell them.
Incredible image quality, the best I have seen on the subject
I never saw soldering such close but now I seen it. Thanks to you.
Dude, that was cool. I'd never have gotten to see this ( and learn ) without you.
The quality of that microscope is absolutely stunning. We use $6000 Leica microscopes at work, and these are simply in another league in comparison.
Thank you very much for taking the time to share this with us!
Hand soldering: it looks like you shouldn't keep that much heat, so the pins are starting to wobble in melting plastic holder.
I often rise up iron's temperature to make it solder faster, so plastic have no time to melt.
Also proper surface tensioning flux helps to fill all gaps with solder fast.
Thank you for making and sharing these great shots! Really helps to better grasp on what's happening over the pads
Yeah, I saw that header pin shift sideways when the (unseen) plastic strip softened and melted. Unfortunately turning up the temperature of the iron isn't a very good solution because the higher temperature tends to quickly oxidize both the connection and the tip of the iron, and so neither one wants to really wet to the solder unless you use extra flux or the flux contained within the solder is particularly active and effective. It's better to make sure that the tip of the iron is scrupulously clean and freshly wetted with a thin coating of fresh solder, and the connection being soldered similarly needs to be oxidation free. Under those conditions, if you're still having problem then you can try turning up the temperature of the soldering station a little bit. It's also important to use high quality, name brand tips in your soldering iron because most of the bargain-pack tips sold directly from Asia or China are made of iron or steel, not plated copper, and have poor thermal transfer characteristics. High quality, plated copper tips will be attracted to a magnet only at the pointy business end where they are intentionally plated with iron to resist the dissolving effects of molten solder and flux. Cheap tips will invariably be attracted to the magnet throughout and at the back end of the tip. I posted a video about this on my channel recently.
This is really nice to watch. Thank you. I have just one remark here, if the solder joint becomes dull when it cools down, chances are it was overheated. Properly soldered contacts usually stay shiny.
Unfortunately, leadfree solder is an all-too-frequent exception, where finished connections often look dry, grainy and dull ( like the BGA soldering shown). Perhaps it looks better if you're using one of the fancy and expensive soldering stations that have a hose where you hook up a nitrogen tank to it...... but if a solder alloy is so finicky that you need to flood the area with inert gas to keep oxygen out of the connection, then it's not really practical for home hobbyists......
Thank you for sharing this! That microscope is quite a beatiful tool and you gave us all the chance to take a look at some interesting aspecst of soldering! 🙏
as a beginner to microsoldering with basic knowledge, I'd like to say that your microscope is hot af! my new dream. And also I learned something from this video, maybe next time I try to BGA recall a band chip, I'll be able to do it properly finally!!!
What a super pretty video, thank you for this Mr. Feranec, I toughly enjoyed this video
That was really cool to see! I recommend upscaling the video to 4K and uploading that in the future to get better bitrate on the videos.
That microscope is absolutely beautiful. And the software is incredible! Very cool shots.
Amazing craftmanship, and the microscope is as well. Very interesting to watch!
what craftsmanship? it's prefabed stencil and the the heat
I've done a ton of under the microscope soldering and this is still great footage.
This is the best foogage of microsoldering, will be very useful for education
Best, most enjoyable video I've seen so far this year.
Wow! Never seen this level of detail before!
Thanks Tom Scott
OMG. That's some microscope Robert. All this soldering brings back memories when I used to work at this on a daily basis.
Thanks for a cool video. To be picky, the lead free soldered joint looks like a 'dry' joint. Also, when hand soldering, try adding a spot of solder to the iron before putting it to the item to be soldered, then add more solder to the side opposite the iron, this will stop the tendency to push too hard with the iron because the heat transfer from iron to joint will be faster.
I do casetype 0201 up to all kinds of THT parts and EMI shields manually at work. The smaller parts under a stereo microscope. Even after all those years and practice there is always a certain challenge with how the PCB's are designed (thermal relief, numbers of GND layers, etc.) to get a reasonable good solder result. The Microscope has become my favorite and necessary tool to work with SMT and quality control in general. This Microscope system however, is very advanced. Love the possibility to change the viewing angle. I am a bit jealous right now, gotta say. ;-)
This content is... pleasant?
So relaxed yet interesing and useful.
Very nice production value and straight to the point, thanks for this.
Great video. I design industrial controls for a living so I wouldn't need one of those Keyence microscopes, but I got to play with one at Hannover Automation Fair one year and they are awesome. Looking forward to watching more of your videos as do also design circuit boards as a hobby.
I know nothing about electronics or microscopes, but this video is amazing.
Phucking awesome!! It's very interesting watching all these things under the eye of microscop.
That's amazing photography. I was hoping for a QFN but I guess even this would not see very much. I flow QFNs on a kitchen hot plate at home. Thanks for the cool video.
2:43 I took that personally...
been soldering for years and I can't say I have ever seen it this close :)
Cool video of those close ups. Solder melting is always fun to watch :)
Thank you so much for creating this video!
Thank you.... awesome sight. Never expected to see this well ...live !!!
Very informative with very nice shots. Thank You for the upload!
That camera machine and software would be hella fun to use, look so fascinating.
solder baking is one of the most satisfying things i've seen
Reminds me of my old job, did repair all kinds of mainboards (PC's), like Asus, Abit, MSI, Aopen, Gigibyte. Did replace all kind of chips and other components like CPU, PCI, AGP, USB you name it sockets. Had a great time back then ;) Anyway great video.
Ok best close up video on UA-cam prove me wrong
Very cool! Thanks for sharing, Mr. Robert.
Nice! As I only know about hand soldering, I missed the part how the PCB is heated while soldering. Is it heated locally? How is overheating damage to electronics prevented? Will other components not come loose while trying te solder a new component?
Heated with hot air, perhaps even from underneath the board, or top and bottom simultaneously.
Heated with a directed stream of hot air, perhaps from underneath the board or from both sides simultaneously.
Mr Feranec, this is a great video!! Thank you
Very instructive and impressive! Well done!
I'm far more impressed with that camera and mount's capabilities. holy moly
8:47 That multi-layer PCB profile view was super cool and super too short!
Great video, brings me back to the 90's when I worked on the line at Motorola.
How do you know that the pins underneath are soldered properly? Do the chips have scan path diagnostics to verify soldering? Verifying no shorts to nearby pins?
Awesome! Can you share the scope information. Nice focusing and high qulaity images at high mignification. I would like have it in the laboratory.
Oh! you already shared it in the script. Thank you!
Thank you for this video Mr Feranec. Very informative.
what are you using to solder especially the QFN? I'm guessing at least an under heater, but surely that can't alone be enough? so hot air from above? it didn't look like it because i couldn't see any optical distortion from the heat. but perhaps it's too magnified to see it.
How are the BGAs produced? Same sized balls production and then placed? Maybe you can make a video on that one day!
Yes, they are prefabricated balls of solder. You can even buy them, just like soldering paste, in different sizes for "reballing" a chip if you need to rework a bad solder job.
I would love to see how the factory puts the balls on a BGA.
A mask/stencil. paste is wiped across like a screen printed tshirt
Satisfaction level ↗💗
Beautiful filming. Need this microscope in my life.
Breaking Taps has a lot of pcb microscope stuff, also some atomic force shots of inside the chips. And electron scopes too. He made a couple DIY
Beautiful video! Thank you very much for sharing. Gotta go check those soldering plates videos now.
Very cool! That is one hell of a scope! I tried to look at pricing but it bugged me for my email then didn't work when I gave it. Oh well. I'd imagine these are quite pricey. Is there a software subscription license for the software component?
Even with the correct amount of solder paste you can get the paste spreading excessively if you are not careful with preheating. It takes a considerable amount of time to properly preheat so that any volatile constituents of the flux are driven off slowly and don't boil. Proper preheating and limited rate of coiling are also critical to reliability with multilayer ceramic capacitors.
With leadless IC packages the part of the "pin" that is easily visible does not need to be neatly soldered in order to produce a reliable joint. This part appears to be bare copper because that is exactly what it is. Low-activity flux, which includes almost all "no-clean" types, may not be adequate for good flow on the bare copper. Added to that is the possibility of some smear of the plastic from the package on the bare copper as a result of the trimming process.
Great demonstration of capillary action that causes the solder to creep up the leads.
i think its not even (just) capillary action, but also "normal" adhesion, no? the liquid solder sticks to the metal, but not the pcb?
@@user-ns7qw9hd5y, the PCB is coated in "solder mask" or "solder resist" to prevent solder from sticking to it. Surface tension of the molten solder tends to make it form into a ball when it's sitting on something like a coated PCB that it cant wet to, and the only reason that a solder ball might stick to the board is because of the flux acting like glue when it cools.
Nice quality of image wow !!
you can mesure thicknees of bga balls, solder traces ?
I find it quite interesting to see the capilary action of the liquid solder traveling on the leads and pads-it's not really something that one would think about, but makes complete sense when you do think about it. After all, capillary action doesn't care what liquid it's acting on, so molten metal is as good a liquid as any!
Please do more videos with this microscope, this is so cool !!
Incredible microscope
Very nice. How accurate is the digital measurement on the generated 3D model?
7:56 That solder sphere looks amazing. You made your own BGA 😂 And man, that microscope is insane. I’d have all kinds of fun with it. Must be worth more than my house.
This is a very informative and interesting video! Thanks for the experiment!
8:01 so this is too much solder but what problem might this create?
Less distance between nodes means more chance of short circuit in certain environments
Loved seeing the subcooling of that one BGA ball