Love hot air soldering, it's so interesting to watch the paste melt into shiny metal. Reflow ovens are also fun when the temperature finally hits the reflow temp and you hear that instantaneous crackle sound at the instant of reflow.
Wow! Thank you for post this movie. I made a lot of wire wrapping and electronic soldering for digital stuff up the middle of 1980s when (then rare) surface mounting boards were considered "unfixable"... I never more cared on that, so this video was a great surprise for me. Thank you to bring me up to XXI century!I
sorry for the late response... the white pen is solder flux... (Stanol minifluxer 33) i removed the solder bridge simply by adding solderflux and contact a short time with the soldertip... (not shown in the video) i did the video only for testing and showing my 1st experiences with solderpaste...... i see that many people like this kind of videos so i plan to do more in the future but on the other side those many negative comments makes me sad and demotivated to show and do more stuff... and again.. this was my 1st experience with solderpaste normaly i use hotair for desoldering and for soldering i use a solderiron with special soldertip thanks for watching and understanding :-)
ramiretz Myself i have problem soldering a fuse on a Ps2 motherboard. They look like this: www.tt-store.com/images//PS2/SMD%20Fuse%20for%20PS2%20(10%20pcs%20pack).JPG But any fuse in that size would be good. :D If you have time
D3lt4forc3 aaah ok .... simply smd parts .... hmmmm i will see if i find some old smd part arround and i will do a video... vid with solder iron ? or with hotair ?
The grey paste is called solder paste and we are talking real solder paste not solder flux paste that is sometimes called solder paste. The difference is that real solder paste contains metallic powder in a flux compound while solder flux does not. Real solder paste should indicate the metallic compound such as silver, copper and other metals in their periodic label labels like Au, and others. The hot air gun is part of a 'reflow station'. granted, it is possible to use a hair dryer or heat gun but those have a much wider effect area due to the obviously bigger or wider 'nozzle'. In addition, if they are not temperature controlled, then you can face problems... especially heat guns without temperature control while a hair dryer would most likely not get as hot but might be hot enough for the solder paste to melt. Note: solder paste tends to melt at a little bit lower temperature than solder wire. This is why you don't need to get excessive with heat. Alternatives to using the hot air tool is to use a convection oven with temperature controls that you can set that would be under 300 degrees. Basically that is what the industrial equipment is known as a "reflow oven" which is basically a convection oven.Some are infrared or vapour phase ovens en.wikipedia.org/wiki/Reflow_oven Occassionally additional flux is used with solder paste. With reflow method, you don't need ultra steady hands just ensure you have solder connecting the pins of the components to the solder pads, via, etc. while assuring you correct any bridging of pins so that you don't create a short where you don't want it once you apply electricity to the circuit board. Lets keep in mind that we are looking as a really component with a high resolution camera zoomed into the component. Even what is a relatively stable hands can look like it is very shaky but lets remember that you are looking at something 10x10x10 (3d space) or 1000x magnification to the real scale so movements are exaggerated by 1000x. Try soldering with a camera in your way. It's not that simple.
Loved your video, im just starting on SMD soldering and desoldering and found this very helpful.. The project im working on uses normal and SMD components... :)
in my older posts i answered this question a few time ! warming and cooling down the chips and look at the memtest when it fails..... then u know wich one is defective
absolute best answers !!!! 1st i used it to practice !!!! 2nd this is a special IBM ram, wich u cant buy anymore 3rd i used the 852 reflow station ;) thank you !!
That is a pretty stellar job!! I also liked the heat shrink on the alligator clips (gotta start doing that). For a while, I thought you might accidentally re-flow the decoupling caps but it all turned out flawless.
I seem to notice that most videos remove the existing solder from the pads on the boards. In my experience, I don't do this since I'm just going to add some back if needed and I think it is just an extra step that might ruin the PCB. I think it helps the chip lay flat and orient itself when initially soldering but I like to use a complete melt of the chip area so that the solder can "suck" the chip into position as it wets the leads.
When reworking the PCB with the hot air station, I saw at least 3 solder bridges across pins. How did you remove them? Did you use a soldering iron? In that case, this video is incomplete.
Laying paste across the pads is actually common practice. Check out some of the SMD soldering tutorials from Pace for some good info. With enough flux (but not too much) to lower the solder's surface tension, bridging is not an issue. Also, if you don't use enough flux the excess can be easily wicked away. As I'm sure was done in this case because the end result was clean.
hello ramiretz... what did you use to clean up the remaining solders on board? i mean what's the type of that wire and is that a liquid flux pen? and what is the syringe type thing you applied at last?
@@MrAjmal2010 If you click again in the thumbs down, the video will be un-disliked. Or, if you click the thumbs up button, your dislike will be convert to a like.
do you worry about damage the pins on board when moving the desoldering wick? Also you never cut the used wick, so does that worry you for too much solder on the wick? Thanks
No I don't worry.. when you are not use much temperature and be very gentle when moving the wick it's not harming the pins.... I don't cut the wick because it will left a tiny bit of solder on the pins this way and it's easyer to resolder then
Nice work...a little heavy on the paste but not bad. Should get a flat plastic knife to spread the paste more evenly. Works wonders. Also great for cleaning up those extra clumpy bits. Overall not bad tho. Those 0.8mm?
So the solder paste actually finds its way to the pads and chip legs? I always thought the paste had potential to short contacts out. This looks eay, maybe you can set the chips and bake the board to set the chips?
hy, thx for the video, may i ask what temperature did u use for the hot air and what air flow? also can u give me the product code for the solder paste? a suggestion is that you preheat (using the hot air from a bigger distance a few seconds 30 for ex ) before u come so close with the hot air, not doing so will lead in excesive heat on the board and can seriously damage some board types or change colour... keep up the good work :)
Hello there, I have a hot hair gun but find that sometimes other components fly off with the air pressure. How do you do it without losing smd capacitors? Do you use very low air pressure? I need to practice.
+FREEDOM What they used to do was print a tiny dot of epoxy under the the component. Now, they use a stencil and a squeegee for the solder paste. In most cases, the SMD component will actually align itself to the pads, due to the forces of surface tension. The solder mask helps too.
Hello mate, I need to lift up one pin from an MCU circuit board! How do I do that? I need to solder it back after... reading it! Heat it up and then with something? Could you do a video for this please? I cant find any on YT! Thanks
PLZ,one question; i bought a netbook with1gb ram soldered onto motherbard,amd c60 so is there possibility for upgrading the memory with more ram,doing like this in your video ? thx in advance,
Cool, been wanting to get a hot air station and wasn't sure how hard it was. Looks like you had a couple shorted pins that were fixed when you cut to the end. How did you fix them just more heat?
this was my very first try with solderpaste and hotair... i used too much solderpaste thats why i had some shorts but its easy to remove them... simply used solder wick if you try it usw not to much amount of solderpaste and everything goes very easy :D
Order some component stencils and apply the solder paste using those. You'll not need to hold the hot air gun on the part so long and you'll reduce the risk of overheating the part. Take a look at the heat profile for the part pay close attention to the overall dwell time.
I tried this stuff out for the first time yesterday. it took me a few attempts to get it right. what I will say watch the video. as I used to much paste and ended up with bridges. what I will say use the thinist nozzle your paste will go down from the syringe. and you will be fine
I have an old ddr2 module that I tried to pull the oversized heat shield off of and it didnt come off the first chip on the edge just came unsoldered I'd love to fix it
Thank you for no music!
😂😂😂😂😂
The solder gun was music to my ears.
Tittle of the song: My silent....😂🤣🎵🎶🎹🎺🎸🎤🎧
Sir you've restored my faith in hot air gun for smd resoldering. This is one of the cleanest jobs I've seen.
this dude sucked. I'm new and better than that
I like the heatshrink on the alligator clips.
Will copy immediately.
+Mick M I was thinking that too! ;-)
me too ;)
What was you using before? You can also put it on the moving parts of the helping hands and it helps hold the arms in place better
@HECTOR CONTRERAS l
Love hot air soldering, it's so interesting to watch the paste melt into shiny metal. Reflow ovens are also fun when the temperature finally hits the reflow temp and you hear that instantaneous crackle sound at the instant of reflow.
Wow! Thank you for post this movie. I made a lot of wire wrapping and electronic soldering for digital stuff up the middle of 1980s when (then rare) surface mounting boards were considered "unfixable"... I never more cared on that, so this video was a great surprise for me. Thank you to bring me up to XXI century!I
Thank you for the nice comment :-)
have i ever said i am a professional ???
this was my first try with solder paste.....
i removed the bridges as you can see in the end...
Thank you so much. The best video for soldering. So many questions have been answered with elegant precision.
thank you very much for those words :) very motivating
sorry for the late response...
the white pen is solder flux... (Stanol minifluxer 33)
i removed the solder bridge simply by adding solderflux and contact a short time with the soldertip... (not shown in the video)
i did the video only for testing and showing my 1st experiences with solderpaste......
i see that many people like this kind of videos so i plan to do more in the future
but on the other side those many negative comments makes me sad and demotivated to show and do more stuff...
and again.. this was my 1st experience with solderpaste
normaly i use hotair for desoldering and for soldering i use a solderiron with special soldertip
thanks for watching and understanding :-)
Could you please upload a video showing how to solder a 2,3 amps fuse? Or just any fuse to a motherboard. Thanks!
D3lt4forc3
wich type of fuse ?
ramiretz Myself i have problem soldering a fuse on a Ps2 motherboard. They look like this: www.tt-store.com/images//PS2/SMD%20Fuse%20for%20PS2%20(10%20pcs%20pack).JPG
But any fuse in that size would be good. :D If you have time
D3lt4forc3
aaah ok .... simply smd parts .... hmmmm
i will see if i find some old smd part arround and i will do a video...
vid with solder iron ? or with hotair ?
ramiretz Think you could do it? If you got time of course... Anyways thank you.
The grey paste is called solder paste and we are talking real solder paste not solder flux paste that is sometimes called solder paste. The difference is that real solder paste contains metallic powder in a flux compound while solder flux does not. Real solder paste should indicate the metallic compound such as silver, copper and other metals in their periodic label labels like Au, and others.
The hot air gun is part of a 'reflow station'. granted, it is possible to use a hair dryer or heat gun but those have a much wider effect area due to the obviously bigger or wider 'nozzle'. In addition, if they are not temperature controlled, then you can face problems... especially heat guns without temperature control while a hair dryer would most likely not get as hot but might be hot enough for the solder paste to melt. Note: solder paste tends to melt at a little bit lower temperature than solder wire. This is why you don't need to get excessive with heat. Alternatives to using the hot air tool is to use a convection oven with temperature controls that you can set that would be under 300 degrees. Basically that is what the industrial equipment is known as a "reflow oven" which is basically a convection oven.Some are infrared or vapour phase ovens
en.wikipedia.org/wiki/Reflow_oven
Occassionally additional flux is used with solder paste. With reflow method, you don't need ultra steady hands just ensure you have solder connecting the pins of the components to the solder pads, via, etc. while assuring you correct any bridging of pins so that you don't create a short where you don't want it once you apply electricity to the circuit board. Lets keep in mind that we are looking as a really component with a high resolution camera zoomed into the component. Even what is a relatively stable hands can look like it is very shaky but lets remember that you are looking at something 10x10x10 (3d space) or 1000x magnification to the real scale so movements are exaggerated by 1000x. Try soldering with a camera in your way. It's not that simple.
rick balkins you're overthinking it. he did it well and it works. that's all that matters.
Hey Rick, can you share link to buy some of that real solder paste?? thanks
300 Fahrenheit, or Celsius?
Still trying to find who asked you
Calm down rick
I could never have the patience for that, but very good jobs and looks awesome seeing it step by step.
Loved your video, im just starting on SMD soldering and desoldering and found this very helpful.. The project im working on uses normal and SMD components... :)
This is really a good job...it looks like its sometimes is better to do it with hot air than with soldering.
That is called precision Job . Well done man
many many thanks for your nice comment :-) it was my very first try with hotair and solderpaste
I wish you mentioned HOW to safely discharge the capacitors. Not everyone knows how to do that safely. Otherwise good stuff!
oh yes you are right ! thank you for this hint...
You could teach that too just type it so we can learn usefull things
This comment section has me intrigued.
Your whole video series is great and informative. Great work. I wish, I must be smart enough like you and upload videos like you to my channel!
in my older posts i answered this question a few time !
warming and cooling down the chips and look at the memtest when it fails..... then u know wich one is defective
absolute best answers !!!!
1st i used it to practice !!!!
2nd this is a special IBM ram, wich u cant buy anymore
3rd i used the 852 reflow station ;)
thank you !!
That is a pretty stellar job!! I also liked the heat shrink on the alligator clips (gotta start doing that). For a while, I thought you might accidentally re-flow the decoupling caps but it all turned out flawless.
Nice idea very helpful.
looks good. im going to 2M school in a few weeks so have a lot of that to look forward to.
Perfect and clean job. 👍
you nailed it man....great help!
Amazing work! I gotta get me a rework station now to fix my JVC XEye, quick question, what do you call that chip lifter tool you used? It's awesome!
one of the most satisfying video ever
excellent sir it is really nice to have this kind of knowledge
I seem to notice that most videos remove the existing solder from the pads on the boards. In my experience, I don't do this since I'm just going to add some back if needed and I think it is just an extra step that might ruin the PCB. I think it helps the chip lay flat and orient itself when initially soldering but I like to use a complete melt of the chip area so that the solder can "suck" the chip into position as it wets the leads.
Did you desolder the chip and put the same chip back? Why? Did you test it to see if it works? Thanks
PERFECT JOB!
thank you
Looks gorgeous!
AMAZING JOB&INF. MAN!!
THANKS!
Great Video! I am looking for the suction cup tool. Any advice where I can order?
When reworking the PCB with the hot air station, I saw at least 3 solder bridges across pins. How did you remove them? Did you use a soldering iron? In that case, this video is incomplete.
Hola, disculpa amigo, que camara de video utilizaste para el video? Gracias.
Wow impressive work. Surprised to see the paste turning into shiny tin-lead.
What kind of sorcerry is this?!
Famous result. Perfect !
Hi there can you please tell me what did you use exactly the tolls,paste etc.. the gun not need i have one too. thank you waiting for your reply
Laying paste across the pads is actually common practice. Check out some of the SMD soldering tutorials from Pace for some good info. With enough flux (but not too much) to lower the solder's surface tension, bridging is not an issue.
Also, if you don't use enough flux the excess can be easily wicked away. As I'm sure was done in this case because the end result was clean.
This is a great technique and very useful :)
hello ramiretz... what did you use to clean up the remaining solders on board? i mean what's the type of that wire and is that a liquid flux pen? and what is the syringe type thing you applied at last?
Why so many dislikes? Great work!
Greetings from Germany.
Sometimes its accidentally pressed. Even I did it...
@@MrAjmal2010 You know you can un-dislike an acidental disliked video, don't you?
@@persona83 Lol..I didnt know they have dislike button over there ???
@@MrAjmal2010 If you click again in the thumbs down, the video will be un-disliked. Or, if you click the thumbs up button, your dislike will be convert to a like.
everyone knows that..some people dislikes your video. Maybe they accidentally did it
Nice soldering...!!!
For which purpose the white paste is needed, which you added just before soldering new chip?
what did you used in soldering ?? what is the name of the material did you put on the board before you put the chip ?
Nice work!
Very neat job I m impressed.
do you worry about damage the pins on board when moving the desoldering wick? Also you never cut the used wick, so does that worry you for too much solder on the wick? Thanks
No I don't worry.. when you are not use much temperature and be very gentle when moving the wick it's not harming the pins.... I don't cut the wick because it will left a tiny bit of solder on the pins this way and it's easyer to resolder then
What kind of soldering lead used like a paste ??. Its awsome
Thanks for sharing this great video 😘
Nice work...a little heavy on the paste but not bad. Should get a flat plastic knife to spread the paste more evenly. Works wonders. Also great for cleaning up those extra clumpy bits. Overall not bad tho. Those 0.8mm?
NIce vid! What is that "white pen" tool you used @1:10 and what brand of grey soldering paste you use? Thanks.
Sir last me apane konsa solution paste use kiya tha
And one more thing, is soldering "flux" needed? Haven't figured out what it's good for ;)
It's also a case of temperature tolerance, chips can take much higher temperatures when not operating.
Вася по ходу чуток подвыпивший, но талант не пропьешь.
На хирурга точно не потянит
Главное знать, что резать и инструменты не оставлять?🤣👼
What's that chip suction cup tool called that comes into play at 0:25s ?
Can you provide settings for the tip and hit air gun?
which is the temperature for used hot air? and which is the air-flow set?
So the solder paste actually finds its way to the pads and chip legs? I always thought the paste had potential to short contacts out. This looks eay, maybe you can set the chips and bake the board to set the chips?
depends on the chipset.... if the chipset support more ram yes.... but u have to find also the right RAM chips for the upgrade....
what form of wizardry is that grey stuff anyway?
thanks, do the cheap hot air guns work ok? ie the chinese ones on ebay?
Clean job. That is awesome.
Hi there, have you seen that C25 is missing at end of the video :D
anyway I'm interested what was that grey paste ??
correct i soldered the c25 new on the board but its not on the picture ...
the grey paste is solderpaste ...
you did the exchange of chips? or welding again?
on a PCB with multiple RAM chips, how can you tell which one is faulty ?
Heatshrink on the helping hands is amazing, i just thought i'd share.
hy, thx for the video, may i ask what temperature did u use for the hot air and what air flow? also can u give me the product code for the solder paste? a suggestion is that you preheat (using the hot air from a bigger distance a few seconds 30 for ex ) before u come so close with the hot air, not doing so will lead in excesive heat on the board and can seriously damage some board types or change colour... keep up the good work :)
Hello there, I have a hot hair gun but find that sometimes other components fly off with the air pressure. How do you do it without losing smd capacitors? Do you use very low air pressure? I need to practice.
+jmicari simply use very very low airstream rate ... on smd parts use a very soft breeze
+FREEDOM What they used to do was print a tiny dot of epoxy under the the component. Now, they use a stencil and a squeegee for the solder paste. In most cases, the SMD component will actually align itself to the pads, due to the forces of surface tension. The solder mask helps too.
Hello mate, I need to lift up one pin from an MCU circuit board!
How do I do that?
I need to solder it back after... reading it!
Heat it up and then with something?
Could you do a video for this please?
I cant find any on YT!
Thanks
right.........
solder paste automat is perfect for this work
what is that gray thing you soldier at end ?
Soldier Paste - Lehim Akı olarak geçer.
normaly yes ! but i also tryed to reball them only with solderpaste and a big tip on the solderiron... worked also ;)
PLZ,one question;
i bought a netbook with1gb ram soldered onto motherbard,amd c60
so is there possibility for upgrading the memory with more ram,doing like this in your video ?
thx in advance,
What is that grey sludge called. I'd like to test it out.. I never worked with anything else than regular led free solder and flux.
It's simple cheap smd solder paste... Give it a try
Is that heat shrink tube on your alligator clips?
You did well with that considering the amount of shaking going on with your hand
yes, liquid flux, in a "flux pen" for ease of application, so may look unfamiliar
Would it be easier to add some low melt solder to the pins before using the hot air to desolder? Maybe some flux?
quick chip it the easiest way but expensive... but with the hotair its not a problem, preheat the pcb and then it goes very easy :-)
what is the commercial name of the gel applied between chip & board?
Nice job, and instruction.
Very nice! What is that marker you used? What temperature C was the heat gun? What type of paste?
The Marker is FLUX ! Stannol Mini Fluxer 33 - Temperature on nozzle is 380 - Paste is simple noname Solderpaste in a Syringe
Hi,what is the grey compound that you used to solder the chip?
How did you find which chip faulty
simply use memtest86 for testing, and as the ram gets hot use freeze spray on each chip, so u can figure out wich one is damaged
What's the name of the thing you use to grab the chip?
Nice video which temp. are u using and which solder paste are u using?
Cool, been wanting to get a hot air station and wasn't sure how hard it was. Looks like you had a couple shorted pins that were fixed when you cut to the end. How did you fix them just more heat?
this was my very first try with solderpaste and hotair... i used too much solderpaste thats why i had some shorts but its easy to remove them... simply used solder wick
if you try it usw not to much amount of solderpaste and everything goes very easy :D
nice and clean work!!
thank you... it was my first try
Will these work to upgrade soldered on memory ram commonly found in ultrabooks/macbook air?
Order some component stencils and apply the solder paste using those. You'll not need to hold the hot air gun on the part so long and you'll reduce the risk of overheating the part. Take a look at the heat profile for the part pay close attention to the overall dwell time.
Xin cảm ơn da chia sẻ
I tried this stuff out for the first time yesterday. it took me a few attempts to get it right. what I will say watch the video. as I used to much paste and ended up with bridges. what I will say use the thinist nozzle your paste will go down from the syringe. and you will be fine
on the video it was also my first attempt .....try a few times and u know how much paste u need ;-)
Where did you get the ic? I have a memory that doesnt work and i could try to repair it!
How name that thing u put the cider out of DPS? And what name is for that marker? thx
Hola, una pregunta que utilizas para soldar el integrado a la pcb??? gracias.
PD. flux¿¿ o pasta de soldar¿¿¿
Great video thank you!
¡Mirando con la boca abierta!
Gracias
Hy from Bucharest, what temp u use ?
I have an old ddr2 module that I tried to pull the oversized heat shield off of and it didnt come off the first chip on the edge just came unsoldered I'd love to fix it