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.
@@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.
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!.
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 !
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 :)
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!
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?
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.
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 .
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.
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,
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?
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 :)
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..
+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.
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?
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
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.
i have to solder some chips for the first time but i don't know what i should use for magnification. Not an expensive microscope because i don't have money for that
You have not shown how you soldered the diagonally opposite pins of the ic... That is the reason you are able to solder the side without the help of tweezer to hold the ic
Great video, it is instructive. I would like to do it. I tried LQFP48, but the result was poor. I failed chip positioning. My fingers shaked, and I could not see lead and pad clearly. What kind of magnifier do you use? How should I practice, to stop finger shaking?
+Nguyễn Mạnh Cường - Don't you see two opposite corners tack soldered? There is no other way to do it other than tacking two opposite corners and optional to tack the other two remaining corners. Mandatory for a beginner. I just did not show it in the video. It would be impossible to hand solder this any other way as it would throw off your component orientation and create overhang.
This isn't fair. You make it look so damn easy, yet when I apply these methods I just bridge multiple legs, some legs have way too much solder while others have little to none. Then when I attempt to clear the bridges, it either doesn't clear, I add more legs to the bridge, or I just move the bridge to other legs. I've had plenty of practice, too, but it's like I don't get any better at it. I get so frustrated I want to 😭.
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
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.🤔
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!.
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.
Great videos, would be awesome to see more. No one on RUclips 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.
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.
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 :)
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!
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
That soldering is beautiful! Respect!
Beautiful, simply beautiful, the Asat chip in particular looks like it was done by a robot :) Superb :D
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.
Thank you very much...you saved me one day work into 15min work.....love you😘
Excellent video. such practice can be done with very low tech equipment and materials too.
Well I have to admit I did not think it was possible to do this with such a large soldering iron !
Thanks a lot.
So satisfying to see those solder joints go!
I don't know why, but soldering is always so relaxing for me.
me too
same here :)
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?
This is the best, I am so glad I found your videos, now I need to find and buy these sponge swabs 😅
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.
I am just falling in love with your soldering thecnick😍
Always keep returning to this video as a reference and as an art ^_^
MUY BUENOS TUS VIDEOS GENIO NOS INSPIRA A TODOS LOS QUE HACEMOS ESTO SALUDOS DESDE ARGENTINA
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 .
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.
nice video and technique , what soldering flux you are using?
Oh, and what brush? I see in some videos you use a brush instead of a swab. Thanks!
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,
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?
clearly a professional at work.
Beautius. I was looking around for an iron to do some fine soldering and ended up here :)
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
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..
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.
THANK YOU.
Cheers from Denmark 🇩🇰
Best soldering.
Please give flux, solder wire size and name
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?
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!)
Amazing. Looks like a factory solder job!
awesome vid!!
dont know how you dont have a ton of likes...
thanks for the great tips!
You make it look so easy...
Your videos are brilliant. Please show how to solder a QFN by hand.
Equipment? Solder flux etc? And soldering temperature?
very good job....i like it so much
usually not possible with hand soldering but amazing results
What chemical did you use for removing the residual flux after soldering?
Which brand of flux do you use??? Can you tell me??? Thank you~
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?
Excellent technical, I will use this!
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.
You make it look so easy.
May I ask what is your solder of preference for fine pitch drag soldering? Thanks.
You saved my RC JMatic excavator :) Thank you!
You’re an impressive craftsman.
Best soldering skills in the world 👍
What is the optimum temperature for this type of soldering. My first attempt was a complete fail....
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
Dam I must be bad. I tried this and turned one short into twenty..... You have training near NJ?
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.
i have to solder some chips for the first time but i don't know what i should use for magnification. Not an expensive microscope because i don't have money for that
What types of pest use for soldering and desoldering
Which liquid do use before solding
excellent, excellent, excellent, that's what I can say to your video.
Respect !
sounds like magic ! sweep with magic pen, then sweep with soldering iron
You have not shown how you soldered the diagonally opposite pins of the ic... That is the reason you are able to solder the side without the help of tweezer to hold the ic
Great video !
please ,
Asked what the solution was on the ic
How do you keep your IC'S from jumping all around?
wouldn't you want to tin the pads prior?
What are you using to clean the flux residue?
What a soldering... Wow... Amazing
When using a flux pen do you still use rosin core solder?
What is the recommended solder for drag soldering?
I guess you don't have to because all the flux from the core is long gone by the time you get the tip in place, but at least it will clean the tip.
I loved it. thanks for sharing! Amazing!
Itsok howto open ic and what is the temperature open ic in smallchip
Great video, it is instructive. I would like to do it.
I tried LQFP48, but the result was poor. I failed chip positioning. My fingers shaked, and I could not see lead and pad clearly.
What kind of magnifier do you use?
How should I practice, to stop finger shaking?
+provincial i think, firstly you should use a small amount of solder to fix 2 opposite corners of the chip.
+Nguyễn Mạnh Cường
Thank you. I will try it again.
+Nguyễn Mạnh Cường - Don't you see two opposite corners tack soldered? There is no other way to do it other than tacking two opposite corners and optional to tack the other two remaining corners. Mandatory for a beginner. I just did not show it in the video. It would be impossible to hand solder this any other way as it would throw off your component orientation and create overhang.
*****
Thank you for your help.
Maybe rest a finger on something, to stabilize your hand.
how many watts is your soldering iron sir?
This is a great video.
Where can I buy these practice boards and components.
LOL those cut-edits at 2:29 - 2:33 etc... master of the shadows !
How much caustic temperature
Thank you. Trying to fix a Dell monitor by replacing a vsync IC chip.
Recuerdo cuando trabajaba en masuchita tv. Quitaba y sustituia un integrado de 366 pin. En menos d 1 minuto.
how I purchase soldring and where is awailable
whats the thing u used to soder
What is that pen with fluid? where i can buy it?
Why did you stop posting videos?
What type of rt tip are you using?
This isn't fair. You make it look so damn easy, yet when I apply these methods I just bridge multiple legs, some legs have way too much solder while others have little to none. Then when I attempt to clear the bridges, it either doesn't clear, I add more legs to the bridge, or I just move the bridge to other legs.
I've had plenty of practice, too, but it's like I don't get any better at it. I get so frustrated I want to 😭.
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.
the first beautiful solder man are you
A Tremedeira Ainda é Uma Grande Vilã
00:37 - why you not just continue the move?
Why you on end move to side?
What is use soldering paste are liquid
thank you for your sharing. If you need the repair tools in the video, please contact me.
I never thought to pre-tin the soldering iron and then drag it...
this looks so perfect
what is that pen type thing