Soldering MCU & QFN IC Chips with Hot Air Station

[@sk22ng]

Ever tech seems to have their own unique way of doing this. Nice work!

[@solderingironguide]

Thanks!

[@cmdjbst]

I'm about to reflow a QFN and 0402 chips. Just watched and got some feelings about it. Thanks.

[@justbehappy9617]

New subscriber here. That's a good way of showing different video angles. Thank you.

[@tigranavemian803]

Good job, very illustrative. Thanks.

[@solderingironguide]

Glad it was helpful!

[@johanwithag2432]

I always wondering if the chip will stay healthy under these extreme temperatures. B.t.w. many surrounding components came lose.

[@blackfish96]

Very clear and insightful video. thanks!

[@solderingironguide]

Glad you enjoyed it!

[@saidbaci4344]

Good job, well done. Is there any possibility to check the connexion between the chip termlnals and the different pads before putting it to work?

[@solderingironguide]

You should not need to check the mcu -> pad connections, unless you suspect a broken trace somewhere. Just use a multi-meter from the mcu pin to pad. Using a good flux will make sure there are no solder bridging issues too.

[@saidbaci4344]

@@solderingironguide All right, thanks a lot.

[@solderingironguide]

If you like these videos hit the Like and Subscribe, Thanks 👍

[@Swenser]

I started learning. Soldered a couple MOSFETs and driver chip on a laptop for it to work again but they fail soon after. Think I'm not getting the heat pad parts soldered well enough. Think I need to pay more attention to quality of flux and solder and play with temp more. More difficult than it looks from pros on KZbin. I'm getting a little frustrated actually but I'll keep practicing when I get the time. I wish people would use temp gun to show actually temperature of surface they are shooting at.

[@jurgenkruger3932]

Multilayer Boards always need a heater from downside to pre-heat the board. There are educational videos available from well-known manufacturers of soldering tools, like WELLER and ERSA.

[@curtisnewton895]

"and that is excellent" did you test it ?

[@cynthiajimenez9318]

This is a helpful video. I am a beginner and always worry about having to take a component out and replacing or repositioning it…

[@seanocansey2956]

Thats a clean board, did you design it?

[@solderingironguide]

Yes, also had help from my Altium designer. You always want to have more than one person involved in hardware design/layout.

[@seanocansey2956]

@solderingironguide ideally yeah. Looks really nice!

[@ebrahimyi9180]

Verygood 👍👌

[@solderingironguide]

Thank you 👍

[@Faysalariss]

Hello, I do it the same way you do but the chip doesn’t go back when I push it a bit and it burns every time, I tried lower and higher temp and air flow. Any tips?

[@solderingironguide]

Hi Faysal, make sure you have enough flux. When you move the chip just a bump should move back. To prevent burning, make sure you heat the board around the part, not the part itself.

[@kesarihariharandhoraikannu8446]

Super SIR

[@rodrigozaracho2458]

a que temperatura usas la estacion y cuanto de aire.

[@solderingironguide]

Hi thanks for watching; check the video description I have more info there . The temp is 385 C and 36 for air speed. You can regulate the temperature and the air speed by adjusting the distance the air nozzle is from the board. In Spanish: checa la descripción del video, ahi hay más información. Uso 385 C de temperatura y el aire a 36 de velocidad. Puedes regular la temperatura y el aire ajustando la distancia a la que sostienes la boquilla de aire caliente con respecto a tu tarjeta.

[@rodrigozaracho2458]

@@solderingironguide thanks

[@roselee3654]

What temperature you set up?

[@solderingironguide]

I just set to 380 C.

[@bleak0218]

Hi, would a 500W station do the job?

[@solderingironguide]

It depends on the size of the pcb and the part you are working on.

[@bleak0218]

@@solderingironguide For a job like this in the vid?

[@solderingironguide]

The pcb in the video is small, so the 500w should work fine.

[@bleak0218]

@@solderingironguide Thanks mate! What size of pcb's are max for 500W?

[@solderingironguide]

It's hard to put a specific size per wattage, if you work on pcbs of varying size or pcb larger than 4 inches on a side, I would go for the 1k Watt station.

[@GeItron]

How you do that, iam heating since 1h nothing happened

[@solderingironguide]

You need to have a good hot air station, recommend 1000 watt

[@MrCiaranm]

I don't know why there is solder mask on the bottom exposed pad footprint. That proably makes it more difficult to solder properly.

[@solderingironguide]

You might be right, but we follow the ref designs from TI when making our PCBs.

[@freedomisfood6966]

You don't renew benith the ic

[@corychamberlain1]

If I was to send you a small board with a few parts that need reflowed , would you ?

[@curtisnewton895]

the brush is really gross, any reason for using that ?

[@hi-ccowboy7983]

It's a disposable brush that's doing a dirty job. 🪥

[@ScottUnger-j7l]

Murray Terrace

[@seonghkim52]

CC3220 SimpleLink WiFi, baby!

[@solderingironguide]

Yes. I love working with that chipset!

[@USERNAME1-x5u]

Just budged that one chip above it.

[@AliMShipleSYR]

Why didn't you cover the crystal oscillator? It will be damaged by heat, right?

[@solderingironguide]

Ali, that is a valid point. Had there been any part in that area too sensitive, I would have covered it in kapton tape. But all those parts can tolerate the ~180C it took to melt the solder.

[@hazim38780]

I doubt crystal oscillator can handle that temps.

[@modorangeorge4991]

@@hazim38780 I never protect cristal oscillators while soldering with hot air and I haven't had any failure.

[@DarrellOrth-w1o]

Lexi Point

[@seeithappen1]

LoL . . . . . No heat protecting tape to cover the surrounding components

[@DiversificationPlus]

You should use flux ..and cap tape ...you have many small components near ...it's not indicated your method...good luck

[@EricLopez-h2c]

74490 Julien Falls