Master Soldering: Surface Mount Fine-Pitch - Highly Recommended
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- เผยแพร่เมื่อ 22 พ.ย. 2015
- STC Soldering Training & Certification, Master IPC Trainer John Gammell demonstrates fine-pitch soldering on TQFP 128 lead 15 mil to IPC Class 3 criteria. Phone: (612) 205-8609
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You will always face the hassle of having to remove the shorting on the last 2 or 3 pins of an in-line IC, on every drag. It is because the PCB did not incorporate a piece of empty-land (triangular shaped) after the last pin of the IC. With this land, you can drag the excess solder into the empty-land. I learnt this from Yamaha DMI Japan. Our production operatives solder hundreds of QFPs and DILs each production day with no problems. It is also good to tilt the PCB at an angle for gravity to work its magic during dragging.
fascinating idea! I'd like to implement this too, could you maybe post a picture of such an smd empty-land? I have trouble finding it.
@@krass76 I've seen them several times near old computer CD-ROM controller chips many years ago, always wondered why they were there, and now I understand... THanks.
Yeah man, those excess solder drag pads are fantastic. All PCB's should have those
ok
Beautiful work. A real inspiration to anyone faces with tiny pins and the fear of soldering
Folks, just like me. My SMD components arrived yesterday. 😱
Wish this video had demonstrated how to solder grains of sand.🤔
Great videos, would be awesome to see more. No one on TH-cam drag solders as cleanly and in one pass like this.
Wow, just wow!If this is not art, what is? Thank you for this informative video
When I grow up I wanna solder like that! :) Nice video! Congrats and thanks for sharing.
This video saved my butt on a project I was just working on. Thank you sooo much!
Very clear instructions, thanks for the info. I am just a beginner but with video's like this I will soon master the techniques required to make anything I want. Thanks!
wonderful to see how this is done.. of course learning about the specialized tools and materials is just as important as see what has to be done.
That soldering is beautiful! Respect!
This is awesome! I want to emphasize that a proper magnifying glass (like used in the video) is very important so that you know when you have succeeded and you can safely connect power :)
After watching your videos I started to utilize "sweep" technique on QFP chips (which I use most) and results are excellent, even with much simpler equipment. I already showed this video to many of my colleagues. Thank you !
For future reference, the technique is called drag soldering.
My hand was that steady when I turned 20 the first time. It was tougher after turning 20 the 3rd time. Now I have a better chance programming servo's to reproduce the movement lol. When I went to school they didn't even have Fortran yet lol. This is all just amazing, this IS the future for me!.
Excellent video. such practice can be done with very low tech equipment and materials too.
Best clean soldering ....love your video,thanks for uploading
I am just falling in love with your soldering thecnick😍
Beautius. I was looking around for an iron to do some fine soldering and ended up here :)
Simply outstanding job!! :-D I used to thnk ths type of micro soldering is done by machine nver by hnd. Bt , I see humqn hands can do it. I thnk I will need a microscope evthough i dnt wear eye glass. Hmmmmm… amazing. :-D
Superb.......! Sir. I don't have words to appreciate you for your skill.
I appreciate your kind words. I would have you duplicating my soldering techniques after a day or two of training.
Beautiful, simply beautiful, the Asat chip in particular looks like it was done by a robot :) Superb :D
Well I have to admit I did not think it was possible to do this with such a large soldering iron !
Thanks a lot.
Thank you very much...you saved me one day work into 15min work.....love you😘
very good job....i like it so much
usually not possible with hand soldering but amazing results
So satisfying to see those solder joints go!
THANK YOU.
Cheers from Denmark 🇩🇰
That is fantastic work! I'm looking into what equipment is needed for this type of work, I have seen other video's where they have used "solder paste" I assume this replaces solder on the tip of the iron. are there any benefits either way ?. I have seen hot air, ovens, irons and still don't know whats easiest.
Always keep returning to this video as a reference and as an art ^_^
Amazing. Looks like a factory solder job!
You make it look so easy.
Respect !
MUY BUENOS TUS VIDEOS GENIO NOS INSPIRA A TODOS LOS QUE HACEMOS ESTO SALUDOS DESDE ARGENTINA
I loved it. thanks for sharing! Amazing!
video stored in the "Solderingporn" folder XD
Maxdarkdog elsass frei
Maxdarkdog is,
Exactly 😄
is there a way to share folders? I'd love to see what else is in there!
dont let your mom find it :D
This is the best, I am so glad I found your videos, now I need to find and buy these sponge swabs 😅
You’re an impressive craftsman.
this looks so perfect
Excellent technical, I will use this!
You saved my RC JMatic excavator :) Thank you!
awesome vid!!
dont know how you dont have a ton of likes...
thanks for the great tips!
You make it look so easy...
this is art
Oh, and what brush? I see in some videos you use a brush instead of a swab. Thanks!
Very satisfying to see the solder goes through so fucken easy....by the way what is that white brush made of? It looks a special kind of material anti-static?
What a soldering... Wow... Amazing
My tip doesn't seem to "suck" remaining molten solder up. In fact, the solder tends to get trapped between the legs on the chip. Am I doing something wrong? How would you get solder out from in between legs, when multiple connections are made with one glob of solder?
Great video !
I don't know why, but soldering is always so relaxing for me.
me too
same here :)
Very good man!Thank you!
Beautifully done I don't think my eyesight would let me near it, interested to know what's a good solder,flux or solder paste brand thats available in the UK is as there is a lot of Chinese poor quality about .
clearly a professional at work.
May I ask: What type/brand of swab are you using to clean up? (Awesome vids. I'm getting a chisel and bevel tip. Thanks so much!)
This is a great video.
Your videos are brilliant. Please show how to solder a QFN by hand.
great video but it could really use audio. when it comes to rework does your stance on wick change ? is there some other technique you use to get old crap off? if not what are you doing to keep the leads in line on large chips where the bevel makes them want to move in every direction with even slightly tinned pads?
great tutorial
i do have an certificate in IPC i get it when i was working at TERADYNE as an Board Repair Specialist..i miss this stuff..i am now at fairchild working as a test equip. technician..
Excelente!
You are a soldering magician and the main reason I want to start drag soldering myself!
I noticed that in most of your videos you use a simple hoof tip of 3mm diameter.
Sadly this tip is not available for my for my solder station(ersa i-con nano).
The closers I can order are: 2mm hoof, 4mm hoof ,2.3mm miniwave and 3.5mm miniwave tips.
Which of these do you think is the more ideal for this technique?
Thanks
+Georgios V - Use their 2.3mm miniwave and it should work identical. All those tips you mentioned will work. 4mm is to large. 2mm - 3.5 max should do magic. Follow the techniques I have presented and update me please.
+John Gammell - Thanks a lot for your helpful detailed answer. As soon as I get my new miniwave tip and have my first passable results I 'll post back :)
and then u never posted
when i offer the iron to the pins the solder does not wick / follow the heat of the iron. Any ideas? Thanks for the very good video great technique.
عاشت ايدك على هذا الشغل
Sensacional gostei muito PARABÉNS.
Great video
Thank you so much.
Thanks for sharing
What chemical did you use for removing the residual flux after soldering?
nice video and technique , what soldering flux you are using?
Que buen cuidado al momento de instalar el chip Smd, mi inquietud es la siguiente: como se llama el lápiz que le pasa antes de poner la suelda...? Saludos,
Looks good. Unfortunately, most of the boards I work with have parts jammed up next to the SMDs, and other tall parts around making it almost impossible to get a soldering iron in, let alone be able to drag it like that.
Depending on if you are working on your own design I would suggest changing your order of operations so the more complex jobs such as this are done first when you still have room.
great
Thanks you teacher
really good !
Best soldering skills in the world 👍
Thats ok, you are really good
excellent, excellent, excellent, that's what I can say to your video.
Exelente!!!
wow it's cool,amazing
Bro super. I like ur videos 👍
Thank you. Trying to fix a Dell monitor by replacing a vsync IC chip.
beautiful
Beautiful. I though you used Amtech 559 syringe flux, what is this pencil that you are using? I assume this is ROHS solder?
+simon beliveau - I don't use Amtech anymore. Some rep's will balk at this but here's the straight scoop, coming from an MIT. Kester 741 No-clean Electronics Rework Flux blows away Amtech in performance and wetting. Most of the time I simply use a flux pen of no-clean with 2-4% solids max. Kester 951 2% low solids is my very favorite in a flux pen. Here is the info on 951. www.kester.com/products/product/951-Soldering-Flux/
The solder used was a tin/lead, Sn63 Pb37 no-clean. It is just as easy with a ROHS lead-free SAC alloy. Most common seems to be SAC 305. Even with a no-clean, remove it. Flux residue has a history of affecting SIR testing (Surface Insulation Resistance), reactivating in the end use environment promoting corrosion and can result in ECM (Electrochemical migration), i.e., chip component with ECM migrating on top side from anode to cathode.
May I ask what is your solder of preference for fine pitch drag soldering? Thanks.
Beautiful
Very Good !
Very nice
Thanks
Super impressive! Looks so easy when you do it... :O
Kinda makes me think I could possibly have used SMD's instead of through-hole on my last PCB.... just maybe. :D
It is easy. Seriously. If you've done other SMT work (like resistor or capacitors), this is like 10 times easier.
A Tremedeira Ainda é Uma Grande Vilã
Very fine nice points ended
Wow! Beautiful :O
perfect!
Recuerdo cuando trabajaba en masuchita tv. Quitaba y sustituia un integrado de 366 pin. En menos d 1 minuto.
Hi, Can you tell me what tip did you used? That's a bevel tip isn't it? what is the tip size and angle?
Super
Cool....very nice!
Muito bom !
Do you do repairs?I need a dsp chip soldered to a circuit board.I watched your video and gave it a try I had 3 sides perfect but the 4th side was a disaster.I would rather a professional do it the next time.
Good video
What types of pest use for soldering and desoldering
what is the process to put chip ac on board
Itsok howto open ic and what is the temperature open ic in smallchip
LOL those cut-edits at 2:29 - 2:33 etc... master of the shadows !
What is the optimum temperature for this type of soldering. My first attempt was a complete fail....