Hot air gun reflow soldering, atmega128L

[debegr92]

If you use a smaller output for this hot air gun, you will get a direct air flow to the pins and not to the processor.

[XTYNoLuck]

this guy would be better off being a mechanic, no really!

[zvodd]

What kind of board is that and where can I buy one? I have a couple of ATMEGA128A's and need something to mount them onto.

[metro2089]

Wow, as far as the nails are concerned people grow the fuck up seriously wtf? He and the rest of this country work for a living not some section 8 well-fare receiving YouTube troll. For those who don't agree with this method that's fine we all do it our own way and as far as him destroying his component come on this is 15 dollars worth of stuff tops! He is learning and sharing get off his ass

[neye4]

Seu método é horrível. Totalmente sem noção . Este chip nesta placa dá para soldar até com ferro de solda de 1,99 .

[robm111]

@neye4 No estoy seguro de lo que el hierro que hacer esto por 1,99, me gustaría ver una referencia para ese bien, porque yo iba a comprar una herramienta. Este método es horrible, pero, sí muestra que la soldadura de este tipo de paquete sin necesidad de equipo costoso es posible.

[RowsbyW]

The ability to do more with less is something to be complimented not put down. And despite all the negative comments the board worked.

What is with the obsession with fingernails and hair? The vid was about soldering not a fashion show!

[freakfoster93]

My nails are always dirty because I play the acoustic guitar...

People that can't deal with dirty nails ought to get a life!

[Yaotzen]

omg, he removed the heat three times and didn't even come CLOSE to the proper heating periods... wtf?

[philip2go]

ouch... that was HOT.... LOL... too much heat applied ruin that poor ic,

[poorchava]

Not the best method of soldering, but I've done that too. Anyway after some tries with hot air gun, hot air soldering station and electrical cooking plate (!!) I still prefer traditional soldering gun. It is entirely possible to solder 0.5mm pitch QFPs with ordinary cone tip. No need for wedge/screwriver/hoof/mini-wav­e/etc. Just use a good flux (although ordinary rosin dissolved in isopropyl or turpentine does the trick too)

[MrLinuxkid]

mmm! Fried Chips!!!

[sarahpunkgirl12]

All very nice but ..its a lot quicker to mount your device on the pads,draw a line of flux around all of the leads, tin your soldering iron well, then draw your soldering along the top of the feet of the leads slowly along with your solder. Don't dawdle, a smooth action without too much pressure on the leads to cause them to drag over.

Any bridges you might encounter can be drawn out by placing your tip over the bridge and quickly drawing it outward .

you could do hundreds an hour this way

[xasdrubalex]

i don't think going back and forth will help to solder in this way, there's a lot of thermal shock doing this.

maybe a better way will be to get close with the airgun slowly and when temperature around solder joints rise enough you can get closer for a short time, i mean it will be best to simulate a pre-heat curve, a rise curve and then a peak curve.

just my two cents.

nice work.

[reply4reply]

leave the guy alone, the god damn thing works for him why do you have to complain he didn't write "tutorial" or "follow this way" or "this is the only or best way to do it" the guy filmed how he does it and he's happy with it.

[ShambleS11GameS]

seriously I LOL when you grabed it.. burned. then.. And this is what really made me laugh.. Pushed your finger against the chip that you had been heating till you burned again. Even though you knew that parts futher away that you werent heating up were too hot to touch.

thnx. you made me smile.

nothing bad to say about your video :) if it works for you then good, but Lol

Why grab it again!? lmao

[harindam]

No offense boy. But have to add few things up. CAN I?

ok thank you.

1) Use chizzle type tip for drag soldering and You don't need a hot air gun.

2) Use flux paste cuz its more effective and less susceptible for bridging

3) Clamp a copper cube over the MCU to absorb excessive heat.

4) GROUND YOUR ARMS or else ESD will kill ur unit.

and wat was that blinking light?????????????????

[robm111]

@harindam Sorry for the late response.

1A) Come back when you can use a single question mark and can spell "you're" correctly and then we'll talk about age.

1B) Yes. We know. This is for people who don't have that.

2) Yes we know. This is for people who don't have that. (Radioshack doesn't carry it.)

3) Thanks... again... however.. again... this is for people who don't have that.

4) Obviously. However, read above.

4B) The "record" indicator of my camera.

[harindam]

@robm111

I really dont think dat my ?????????????? and my language has anything to do with this.

Who cant afford a chizzle tip if he can get a hot air gun?

RadioShack is for wanksters.. dang boy you sound like a typical Nerd Wannabe. Cuz real geeks or nerds never do things without proper equipment.

. IF YOU DONT KNOW THE EFFECT OF ESD, THEN I DONT THINK I SHOULD TO COMMENT ON THIS AGAIN...

PEACE OUT \/

[harindam]

@robm111

FOR VIEWERS......... This is a true dumb method to destroy your microcontroller. Do you want to risk your MCU? THEN FOLLOW THIS VID or Try other PROPER SOLDERING INSTRUCTIONS For SMD Soldering.

[robm111]

@harindam u mad bro?

[DarkMystic182]

@robm111 Harindam is dumb, this guys legit and the method works (tried it with a cpld)

[harindam]

@robm111 I'm going mad when people instructing wrong methods in youtube. If you don't know the correct method, mention it clearly.

[aptsys]

@harindam y u mad bro?

[mrsteve1968]

Thanks for taking the time to make this video, As a rookie I found it VERY helpful,

Regards......

[iTheGeek]

@mrsteve1968 How's destroying a chip gonna be "VERY helpful" o.O?

[Tuscopa]

5.12, LOL, indeed..

[anno786]

i want to ask what is differnce btwn solder mask layer,and solder paste??

[nicholasbiblelife]

thank you!

[patsaxon]

I thought that putting on flux on that board first would cause solder bridges about laying on the solder? Would it be better to not put any flux on until you melt the solder on the leads?

[robm111]

@patsaxon No, flux helps the solder stay where it's supposed to (on the pads.)

[frosty9595]

Dirty fingernails just mean you have better shit to do then scrub your hands! Manly mechanic nails ftw... (Typing with mine atm)

[justinpiu]

EWWWWWWWWWWWWWWWWWWWWWWWWWWWWW­WWWWW LOOK AT................. The new xbox360 dash board

[Emeengor]

Step 1: Clean your nails...

[robm111]

@Emeengor LOL! I am amused at the amount of comments regarding my nails. Either a surprising amount of women are watching this video, or a surprising amount of girly men. I work in the automotive field while I'm putting myself through college, so yes, my fingernails are going to get some dirt. That, and I'm not girly.

[playcard120]

@robm111

no worries ...rob..i dont know why most of them are pointing at ur nails but i believe they arent as concerned with the topic in this video as i am . so no worries ..u r doing just great..appreciate u!! tk cr

[Alexboooom]

@robm111 what all these have to do with cleaning the dirt out of ur nails???? so only girls are clean for u???

not only cleaning but also cutting...it's a utube video, not a homework!!!!

p.s. thnx for showing sth about soldering coz i had no idea what was it...

[ventureelect]

@robm111 Dirt under your nails means you are workin.

[sparkyuiop]

Nice job, well done.

[mrjoostietoostie]

@Emeengor haha really good 1st step :)

[fax8]

I don't think this is good practice.. you should let the chip slowly heat up than rump up into the solder reflow temperature really fast and let it cool down slowly. Even if you don't have temperature control you can do it moving the hot gun nearer/farther from the chip. Also, solder paste is reccomended for these jobs.

[1dosucol1]

@1:14 the best soldering iron tip to use for that is a chisel tip

[bigdav123456]

what temperature did you use?..fookin Hot.!..lol if folks are not careful doing this they risk pop corning their chip.!

[knabbers]

Really good job :) please clean your fingernails though

[rpcelectronics]

Hold the board in some kind of vise or other suspending device and heat the board from the bottom. You will reduce the risk of damaging the part and/or board. I reflow all kinds of multi-pin SMT parts this way, all of the time. All of my production work is done with a $30 cooking skillet from Target.

[angelofdeath12345]

What temperature and air flow settings did you use? What make/model of reflow station did you use?

[robm111]

@angelofdeath12345 Well, ah, I didn't use a reflow station at all I'm afraid. I did use a $10 heat gun that has no temperature read-out at all. Unless you call "really hot" a temperature setting. But it actually doesn't even have that.

[deluxedookie]

@robm111

roughly need 400*F

[intheshitter]

@robm111 mine is just on or off lol.

[viperetti]

@angelofdeath12345

[saiiad737]

dit you hurt you zelf....

[robm111]

@saiiad737

If you mean "Did you hurt yourself," why yes, yes I did. However, if you mean "dit you hurt you zelf," then I sure as hell did not.

[saiiad737]

@robm111i mean the first one

[SZS0001]

@robm111 dit you burn you zelf? or waz you attakked by yor PCB

[Mearstone]

@robm111 You have an undamaged Z.E.L.F. !? Better hope the CIA don't find out.

[833P]

Impressive

[rodrigobordini]

hole shit, no need this, just iron. you madness.

[billemily100]

thanks. could you tell me what is the brown colour stuff ? I saw you did 4 times spread the solder evenly without dripping, quite professional !

[robm111]

@billemily100 - The brown stuff is flux, and thanks for the compliment - however, the stuff is pretty sticky, no real skill involved in keeping it from dripping.

[dumyyyyyy]

too much time, too much heat! I will solder and cleaning that circuit in less that 2 minutes with multilead tehnique ! No air heat gun! Just an solder iron with a 5mm solder tip! (flat)

[johnmacward]

Spread the flux - WITH A FUCKING SCREWDRIVER! I mean come on, do you not even have a little piece of plastic?

[robm111]

@johnmacward You're right man. I was going to use a tire iron instead of the screwdriver, but I couldn't find it in my one ton chevy pickemup. I'll take your advice next time.

[frankieandpeggy]

would this method work for the hana chip on a xbox 360?

[haze656]

would it be easy if you put flux on the prongs then drag solder iron across

[ratgod]

I've been stripping old boards with a paint stripping gun for years, I ordered my first reflowing station yesterday and waiting for it to arrive :)

[donnyab]

@ratgod

I am thinking about trying to solder some boards but I am a crap solderer (plus want to do some small IC chips) would it be better to use a hotair gun or a small reflow oven ?

[scorpie2007]

You need a proper hot air gun to do the job not that monster ! You're frying the chip man !

[robm111]

@scorpie2007 Yep your'e right, this gun really isn't what you're supposed to use at all. Previous comments (from me) to replies on here, paraphrased, states that this is a "if you have nothing else at all to get the job done" kind of solution.

And the chip's fine, it's running my linebot.

[tbassdaughter]

clean your fingernails

[robm111]

@tbassdaughter LOL

Cut your hair.

[viperetti]

@robm111 nice nails !!

[valiza123]

@robm111 is that flux basically colophony with alcohol Isopropyl alcohol?

Is it not easier just soldering that chip directly the way you applied solder to the pads, just put the chip on, solder the corners then add flux and go over all the pins? It has big pitch and pins. The 0.5mm pitch are REALLY hard.

[zelenbic]

what is the ehat of the hot air gun at 4:28

[cdseatpizza]

most chips aren't designed to go over 80C lol i wonder what heat ur chucking at it

[philbx1]

Wow man, that farkin hurt ny ears, let alone you're fingertips. I think you are the guru of SMD. Fantastic!

[x65535x]

That's a good way to cook a chip. A decent hot air tool isn't that much.

[robm111]

@x65535x Yep, you are correct - this is very much the improper way to solder ANYTHING, much less a delicate device such as the atmega128. However, IIRC, the cheapest hot air rework station runs $150. This tool costs $10. Add to that the fact that this video is aimed more at the person who doesn't have $150, but maybe 20-30 dollars to blow on a hot air gun (which isn't going to break) and a microcontroller or two that might break... then we're talking about on-the-fly electronic hobbyists.

[DominusDRR]

Are the French style nails?

[DominusDRR]

Are the french style nails?

[DominusDRR]

Are the French style nails?

[bluehawks9]

when i do that, my soldier spreads all around the fucking place, with bridges all the connections, what im i suposed to do ?

[robm111]

@bluehawks9 Did you use enough flux? Try using more. My guess is that you used too much solder; solder wick can help with that.

[smikules]

would have been better to just use the soldering iron to install that chip, we did in class all the time and at a job I worked at, the heat makes the pins stick right on and all you have to do is lightly drag the soldering iron over each side and you're done.

[dieeeeeeeeeeego]

If you have any other SMD componnent like a resistor near it, wont the air make it fly away? The hot air, is not only that, its also hot wind.

Also, thanks for the video.

[robm111]

@dieeeeeeeeeeego Not really; keep in mind, this component weighed... well, not a whole heck of a lot. A piece of paper probably weighs more.

[wluczymorda]

Nice nails mate :D

[robm111]

@wluczymorda That's how you know you're a real man. Clean nails FTL, only weak girly men keep their nails clean.

[Vandalsounds]

@robm111....... Real men eat their fingernails.

[wluczymorda]

@robm111 Real man.... ok

Wonder if your date would think t same. i wouldnt think its girly, its just hygiene and aestetics. specialy in a vid with close up.

But if thats what makes you a real man then ok, ill go scratch some dirt and go pull some chicks

[perqqq]

@wluczymorda I ddin't even noticed his dirty nails. I was looking on what he is doing. :-O You must be either gay or girl.

[wluczymorda]

@perqqq You must be blind plus why so touchy bout that, ive noticed it hence the comment

[perqqq]

@wluczymorda Touchy about what? You seem to bo touchy about his nails, lol. Focus on the movie, not his nails. EoT :-X

[savepenguintrees]

I do this, but I skip the heat gun part..

1.place Chip,

2. heaps of flux

3. solder.

Perfect.

[neurox1]

@savepenguintrees jejejejejeje that also works :)

[DeeJaySF]

Ahaha! I love how, at the end, you're just so determined to show it to the camera. "Ow, that burned." *try again* "Ow, that burned." *gets some paper*

Classic.

[packoftwenty]

This is unbelievable. At the start, hasn't the guy heard of a SPATULA? Or anything to just dab the flux where you actually want it to go?

[robm111]

@packoftwenty

Aw, my first negative comment. <3

[grease26]

What's the temp of the blower? Does the IC still work properly? Reflow ovens operate at most at 220 Celsius.

[robm111]

@grease26

Haven't taken an infrared gun to it yet. Gun just says "HOT." Yes, the IC still operates correctly.

[AlienwareMetal]

Would a hairdryer work?

[IBLISendofdays]

Hair dryers wont work as they are restricted to a max temp of 60 deg C as that's when skin can burn with hot air. Heat guns can normally blow out a max temp between 300 and 400 degrees C, so are very much hotter than hair dryers.

[AlienwareMetal]

and how about 4 hair dryers  ;)

[wolfshark1]

@AlienwareMetal Still 60C dude :D

[tasios77]

lol @ 5:11 nice reflow :)

[TheTraktorManiac]

Ive never seen this kind of soldering, normally i attach it to the pins and solder the IC directly. I dont see the point in soldering the pins first and then attach.

[bigdnelyria]

@TheTraktorManiac it creates a clean contact for solder to stick to and also alows the solder to spread thru the contacts quicker with less heat because the heat can transfer more quickly on a clean contact then a dirty one.

[AntiProtonBoy]

Interesting, but wouldn't it be better to solder the IC directly? Fix the IC on the footprint by soldering the diagonally opposing pins, and then use a lot of flux/paste to saturate all pins, and solder them using the same trick by dragging a the wet solder over them.

Having said that, the heat gun is ace for de-soldering ICs, or even for a reflow repair job, as I did with a dead laptop motherboard (I reheated the GPU).

[RetroRepair]

Grab a tube of solder paste, it's cheap and gives you visual feedback when the job is done.

[zbyszekskibinski]

What temperature did you set your gun on? Good video, cheers.

[robm111]

The gun does not have a reliable temperature "guage," just basically "Colder" or "warmer." I set it on the highest setting for this, though better results may be obtained if a lower setting was used for someone not confident about not burning their microprocessor.

[bensonak47]

wat's the flux for?

[robm111]

Helps keep the solder on the pads while using the drag method; otherwise, solder bridges would be more likely to form.

[exterminator2006]

List of products - MArk - Model? Thanks

[robm111]

That's an Atmega128 and an accompanying breakout board bought from ebay as a separate pair, came with two of each. The heat gun is a "HomeRight Heat Gun," bought about a year ago, not sure if it's still available. Not sure what you mean by "mark."

[dion0440138694]

Hey man,

Does all that heat do any damage to the processor?

Cheers.

[robm111]

No, none at all - the trick is to NOT sit on the processor with the gun for very long, hence why I kept taking the gun away.

The silkscreen didn't even blister.