This method looks very easy. But practically it is not. Usually we happen to do this kind of work as a rework. There are many parts already installed nearby. Here there are no other parts, no pads connected to ground. The thermal pad of the chip was ignored. And the board appears to be a double sided (two copper layers) only. When it comes to a board of eight ten layers with heavy density of copper and several pads connects to ground , picture is completely different. We have to use a hot plate to preheat, under the cradle, which holds the board and place everything under the microscope. Then we have to perform the soldering as in the video, sometimes with the help of hot air gun. Everything should be done very carefully, taking care not to burn any connector or part because under the microscope we can see very limited area only. When we perform our duty very carefully, the worst thing is our employer used to bring his laptop to show us these type of videos and points us " See , how quickly the youtubers do this."!!!!!!!!!!!
For hobbyist projects you make sure to make PCB designs that make manual assembly easier. You don't use the smallest pitch ICs or 0603 passives etc. And chips like these are often soldered with solder paste and hot air.
This method only works well for a footprint designed for "handsoldering" with iron. That is why pads on breakout board are long enough so it is easier to get heat transfer with regular soldering iron tip.
The advantage you have here is the large pads to allow you to use a relatively large tip when soldering. It's sucking the solder up from the joint. Problem is that when you follow the manufacture's footprint guide you get minimal area. In production thankfully I'm using a stencil and a convection oven. But sometimes I do need to rework these devices and what I do isn't too dissimilar to this video. Using a large chisel tip iron, lots of flux (liquid rather than paste) and make a big blob of solder to be dragged along the side of the IC. Replacing these ICs you need hot air. What I've also found is that with ICs that have a large thermal pad you also need to add a heater underneath the board. Set it to 100 / 150C so that your hot air has less work to do. You'll do less damage, or none at all, this way! Replacing just carefully put down some solder paste, you don't need much, and then again back to the hot air. But they really are an absolute pain these packages!
@@hugepines3990 We now have 60x60mm 3488 pad packages (80amps), these need everything correct to get them working. I still believe the 56 Gbaud are the hardest, everything needs to be perfect.
Nice video, love the wave effect. It's so easy on boards without ground planes and on leaded solder though. And no thermal pad. Can be a living hell without preheater on bottom and proper temperatures/times.
I see this particular package type causing a lot of cold solder failures in equipment we repair. Seems that the TQFP packages are better as their actual leads are more capable of dealing with thermal expansion?
Nice debating if I should get cheap hot air gun or just use my soldering iron to add the 2nd m.2 connector and the capacitors for my laptop MSI decided to leave off.
Can you recommend a comprehensive tutorial about the basics of IC technology? (PCB fabrication, main surface amount elements and their function, main applications)
Hey all, I've been trying to find some flux cleaner like OP used in his video. The dispenser looks pretty practical, can someone point me to where I could find that kind of bottle ? Thanks !
Если так на печатке запаять - не сложно. Плюс брюхо не пропаяно. Я паяю так: аккуратно залуживаю посадочное место и чип. На чипе должны получиться бугорки на выводах. Совмещаю чип и посадочное место. Грею феном до момента посадки. Проверяю микроскопом правильность посадки.
if you didnt notice the best joints he did was the 2nd row when he did only a few at a time and started away from it and slid in lightly touching the side of the chip with the tip only... 2:45 But here is a question the small brown pads in the corners is that for automated grip points or they maybe ground or heatsink contact points or something? also long as the trace isnt damaged you can always paint over trace cover with a matching clearcoat and use alcohol to blend the edges.
The brown bits are exposed parts of the leadframe that have been cut flush, they help to keep the leads and the IC from moving while they encapsulate the part. The leads are cut and trimmed and the rest of the leadframe is removed at the same time.
You forgot to solder the thermopad/GND Pad that located underneath the chip ,which may be very important for the performance of chip align with the specification.. when soldering QFN with thermopad . hot air soldering and drag soldering method shall be applied
Soldering has never been so emotional
Emotions harm business. Emotions are not bad, but very dangerous.
Tears dropping from my eyes while watching it :'(
And soothing, calming and
relaxing.
Everyone must agree that it is way better than that annoying beats in viral diy videos.
If you really loves work , then Brain will release good dopamine 😊
good presentation 🎉
Two o'clock, middle of the night and I’m watching some random dude soldering... Good night
The same, at 3am. Two years later in the middle of pandemia.
3 am and us
Same but in 2021
3:25 am
This method looks very easy. But practically it is not. Usually we happen to do this kind of work as a rework. There are many parts already installed nearby. Here there are no other parts, no pads connected to ground. The thermal pad of the chip was ignored. And the board appears to be a double sided (two copper layers) only.
When it comes to a board of eight ten layers with heavy density of copper and several pads connects to ground , picture is completely different. We have to use a hot plate to preheat, under the cradle, which holds the board and place everything under the microscope. Then we have to perform the soldering as in the video, sometimes with the help of hot air gun. Everything should be done very carefully, taking care not to burn any connector or part because under the microscope we can see very limited area only.
When we perform our duty very carefully, the worst thing is our employer used to bring his laptop to show us these type of videos and points us " See , how quickly the youtubers do this."!!!!!!!!!!!
вот и хуй-то!!!а автору похуй на это!......и это,я бы слал на хуй таких клиентов!!!
For hobbyist projects you make sure to make PCB designs that make manual assembly easier. You don't use the smallest pitch ICs or 0603 passives etc. And chips like these are often soldered with solder paste and hot air.
Next time your employer says so, ask him to hire the youtuber.
@@NicolaiSyvertsen Yes
@@ManishKumarIITG 😂😂😂
This method only works well for a footprint designed for "handsoldering" with iron. That is why pads on breakout board are long enough so it is easier to get heat transfer with regular soldering iron tip.
Dont forget the power pad under the part, you need hot air to mangage to that :)
it can also be achieved with soldering iron from below since there is thermal connection
The tears that will drop from my eyes by watching this video will wreck all my soldering
I managed to weld a 0.5mm QFN 28. I learned with you. Perfect! Thank you very much!
Excellent macro photography and editing. Perfect soldering technique 👍👍👍👍👍
I've never seen something so beautiful in my life!
Dude, you make this look like art
Damn... the music makes it soooo refreshing
Perfeito! Eh gratificante e relaxante ver um trabalho assim bem feito
Thanks for making this video, I'm getting in to SMD/SMT boards myself and this video was very well presented and explained :) I'll subscribe :D
Tut tut 6⁵⁵33 a eoyeruyuey3y3ygggegertgrte tree teddy toy tree
Simply the best !!!
👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻
epic skill. thank you for the tutorial
Still came out clean and perfect!
you make it look so easy
I think there is a big issue, no solder on the ground/central pad if it's necessary.
i like your confidence anchoring the second spot without checking if there is any misalignment..
Very nice work. Great close-up.
watching this makes me ask myself why I waited so long to get into SMD (as a hobbyist)
Be prepared to practice for a long time.
The advantage you have here is the large pads to allow you to use a relatively large tip when soldering. It's sucking the solder up from the joint. Problem is that when you follow the manufacture's footprint guide you get minimal area.
In production thankfully I'm using a stencil and a convection oven. But sometimes I do need to rework these devices and what I do isn't too dissimilar to this video. Using a large chisel tip iron, lots of flux (liquid rather than paste) and make a big blob of solder to be dragged along the side of the IC.
Replacing these ICs you need hot air. What I've also found is that with ICs that have a large thermal pad you also need to add a heater underneath the board. Set it to 100 / 150C so that your hot air has less work to do. You'll do less damage, or none at all, this way! Replacing just carefully put down some solder paste, you don't need much, and then again back to the hot air.
But they really are an absolute pain these packages!
I u u
77ii
QFN are a breese, csp even easier, what is tough is the new 56 Gbaud packages.
@@Ozzy3333333 BGA1156 ;P
@@hugepines3990 We now have 60x60mm 3488 pad packages (80amps), these need everything correct to get them working. I still believe the 56 Gbaud are the hardest, everything needs to be perfect.
MUY BUENOS TUS VIDEOS GENIO NOS INSPIRA A TODOS LOS QUE HACEMOS ESTO SALUDOS DESDE ARGENTINA
Nice video, love the wave effect. It's so easy on boards without ground planes and on leaded solder though. And no thermal pad. Can be a living hell without preheater on bottom and proper temperatures/times.
Beautifull work!!!
Nice video, like the music.
Where did you get that metal siphon you had on top of the alcohol bottle ?
Very professional, excelent work
Прекрасная пайка,очень аккуратно и с умом!
That was nicely done!! What magnifier do you use?
this is so satisfying
True😋
Concur. Most therapeutic... N relaxing I find when replacing large SMD ICs.
not good, need thermo fan for soldering central thermopad chip
Muito bom seu trabalho, deixo aqui saudação do Brasil.
I like to use how air for this especially because most IC have middle large contact for ground or for heat dissipation and i like to solder that too.
I see this particular package type causing a lot of cold solder failures in equipment we repair. Seems that the TQFP packages are better as their actual leads are more capable of dealing with thermal expansion?
If there was a reaction of I love it on youtube I would put it ... that work so neat and perfect I loved it
Great job!!
This is such a beautiful video
What type of microscope you use??? And thanks for the videos saludos desde mexico
Super sprawa szybko i dokladnie
Красиво! Спасибо!
Professional 😍👍
Excelente pero una duda la parte de en medio no es necesario soldarla?
And what about the power pad? how did you make the soldering?
Great Job !!! Thanks for the cognitive Video =)
Nice debating if I should get cheap hot air gun or just use my soldering iron to add the 2nd m.2 connector and the capacitors for my laptop MSI decided to leave off.
Good! 👍
Thank you, cool skills
In which temperature you soldering?
gracias, esos detalles al soldar microchips no lo sabia...
Super smooth
Отличная работа👍
what camera do you use for filming?
Can you recommend a comprehensive tutorial about the basics of IC technology? (PCB fabrication, main surface amount elements and their function, main applications)
Просмотрев видео вспомнил ролик где чувак говорил это просто охуеный зум 🤣
Excelente
Great Vid !
Clean work good
you don't need any soldering for central Ground pad? oh, there are some people mentioned.
*C'est bien présenté, j'ai compris maintenant comment souder ce type de composants. Merci*
Very good! Trabalho muito bom!
What about the backplane? It's there for thermal transfer and some devices require that it is connected to Vss.
the saddest qfn soldering video... :-(
when said "unfortunately solder mask damaged..." plus the music, I almost cried
They use the video plot in latest movie, really sad. The move title I think "You beautiful feet shower my lip"
Thanks for making this video super my friend
amazing..
Really impressive
Хорошая работа.
Hey all, I've been trying to find some flux cleaner like OP used in his video. The dispenser looks pretty practical, can someone point me to where I could find that kind of bottle ? Thanks !
Nice camerawork.
我想知道有什么摄影器材拍摄的，真清楚。
Nice work
I enjoy listening to the backgrond music.... very relax.
Me too, you can find it here th-cam.com/video/pGGmxfQ9oBo/w-d-xo.html
Hello !
What kind of camera do you use to record videos?
Verry clear image.
Thank you
Good and perfect skill ever,
NICE SOLDERING AND VIDEO.
what a great skill
I preffer to use hot air to sold QFN's packages, specially because the central pad!!!
Use flux to fix the QFN-chip looks like a good idea. I will try this method later.
Top 10 o serviço 👍
How's underneath on that one how you engage good connection if there's no re-heat under components.
Если так на печатке запаять - не сложно. Плюс брюхо не пропаяно.
Я паяю так: аккуратно залуживаю посадочное место и чип. На чипе должны получиться бугорки на выводах. Совмещаю чип и посадочное место. Грею феном до момента посадки. Проверяю микроскопом правильность посадки.
1:12
Why we need flux on the two corners ? (or it is soldering paste?)
What kind of flux can be cleaned by alcohol?
This is art
nice video, which micro camera you used by..?
can i use soldering paste with that type of SMD ?
nice job thank you
well done!
music so beautiful
2:34 thanks for keeping it real!
Goog work bro..
if you didnt notice the best joints he did was the 2nd row when he did only a few at a time and started away from it and slid in lightly touching the side of the chip with the tip only... 2:45 But here is a question the small brown pads in the corners is that for automated grip points or they maybe ground or heatsink contact points or something? also long as the trace isnt damaged you can always paint over trace cover with a matching clearcoat and use alcohol to blend the edges.
The brown bits are exposed parts of the leadframe that have been cut flush, they help to keep the leads and the IC from moving while they encapsulate the part. The leads are cut and trimmed and the rest of the leadframe is removed at the same time.
You forgot to solder the thermopad/GND Pad that located underneath the chip ,which may be very important for the performance of chip align with the specification.. when soldering QFN with thermopad . hot air soldering and drag soldering method shall be applied
You make this look really easy although I know that it is not, especially with a soldering iron. You must have done this for quite a while now.
Great job, congratulations! What is the make and model of your microscope?
มาเป็น Fc sub ใหม่ครับ
How to make sure its connected or not short circuit if there is another components already solderd?
the ground under chip is not solder. so effect to chip high temp. and unstable work
for the central ground pad , I would put solder in the hole , from the bottom and heat the pad through the hole with my soldering iron.
Thank you, What is the microscope brand and model?
Great footage quality. I would aprecheate voice over music. Explaining stuff, pros and cons. Etc.