Professional SMT Soldering - surface mount fine pitch I.C.

[insoomniiaa]

make more videos please :)

[thisphil]

That was just beautiful

[rpm2hi]

Have been soldering for over 30 years but just learned a whole bunch from you. Thanks so much!!!!

[jkgamm041]

@rpm2hi

This is what holds the greatest value to me. Sharing and knowing that it contributes to the continuous improvement of others.

[izaguirre91]

Marvelous! that IC installation looks manufactured. Best soldering ive seen. NIce work!

[jkgamm041]

Thank you for your support.

[gdl357]

I would like to know what soldering station you prefer or own.

Thx

[jkgamm041]

@gdl357

I started years ago using a Pace MBT 250 rework station. Performed incredible. Cost was $1000.+

The Metcal MX 500, an industry standard for many years and the new Metcal digital MX 5010. An amazing performer, truly SWEET. Cost $650. retail and cost of ownership (tips) at $30. each.

The iron I prefer is the Hakko FX-951. Very compact, 70 watts, very comfortable hand piece, ultra performer, immediate thermal recovery, programmable temp. Retail $250., tips $10. each. I prefer Hakko.

[FolderBulk]

Thank's ! Nice training!

[jkgamm041]

I agree with you. A medium to large hoof tip or single sided flat transfers thermal energy (heat) very quickly. In and out, fast.

A good no clean or RMA flux and the larger hoof achieves wetting immediately if you use a small heat bridge on the tip by slightly tinning the tip before you touch down.

The smaller chisel tips and sharp conicals, BE CAREFUL ! People pull leads and trace pads all day long using poor techniques and improper tips and then they wonder why.

[salishndn]

That's awesome!!

[6527mjap]

wow.. soo clean and beautiful.

[GrummanNorthrop]

Outstanding! This biometric replacement is flawless. It is either a LQFP or TQFP. You sir are the master.

Check your email please and lets talk. You would like it here at Northrop.

[motatyou]

What a wonderful presentation. I wish you had sound and narration.

QUESTION: Where can I get the flux? Kester says the smallest amount is 1 gallon?

Thanks

Tom

[jkgamm041]

@motatyou

Buy a flux pen from Stanley or Techni-Tool. They are $4.00 each, felt tip push down applicator so get a back up tip if you can.

Kester 951 No Clean (2% solids) or 959 (4% solids). Get the 959, higher solids will remove oxides better, reduce surface tension and promote better wetting. Make sure your flux is compatible with the flux core of your solder!

[xraymond10]

fantastic -- didn't even know it could be done.

please, what type of equipment do you use?

I'll buy it.

[silentstorm2410]

nice work

[Redstone2009]

Outstanding. Is the biometric IC an Authentec? The replacement looks better than factory.

[thejasper110]

it's...perfect :o

[mikewkrc1]

Can I say WOW. I've always thought I could do anything... well most anything... You make this look easier than easy... I would say having the correct tools is only 50% of the battle. The patience and willingness to do things correctly gets you the other 60% .. yes you get 110% that IC replacements looks factory perfect!

-Mike

[TENCUHTLI]

awesome!!!!

[MueraTelevisa]

What a nice clean job amazing!

HEY WERE CAN I BUY FLUX OVER THE INTERNET?

[derektm]

What solder equipment do you use? Strictly PACE? What models?

Nice job. I'd love to have you as a teacher some day!

[clayton9237]

Hi, I really like your work. I was just wondering what is the liquid you put on the joints before soldiering. Is it flux please pm me or reply to my comment. Thank you very much and have a nice day.

[jkgamm041]

The liquid is Kester 951 No Clean Low Solid Liquid Flux, 2% solids. I use it with Kester 245 No Clean solder, 63/37 tin/lead with a size 66 flux core. I Stay away from the heavily activated rosin. The 951 makes a big difference.

[johnericbual]

outstanding! I just accidentally saw your video demonstration, and gives me additional knowledge for working on SMT.But the thing is i can't do practice on it coz.i cant find a liquid flux here in our place.

But it means a lot for me.maybe some other time i just first buy the materials. Thank you.

[TerminalJack505]

Wow! That's awesome. Thanks for posting this.

I probably wouldn't have made the switch from through-hole to SMT if it weren't for folks like you who shared their expertise online.

I'll never have your talent but at least I'm no longer scared of surface mount components (well, except for ball grid stuff.)

[jkgamm041]

I do not consider what I do to be anything special because I know that anyone can do this with the right teacher and some practice. I could spend a week training you and what you would be able to do with assorted surface mount I.C.'s including fine pitch would completely blow your mind! I could teach you point to point, horizontal and vertical drag soldering that would demonstrate the results of one who had been doing this for years.

[ktulu1115]

Very nice technique. I've seen several drag methods but nothing quite that efficient. I didn't think it would be possible with a hoof tip that large. What temp is your iron set to?

[jkgamm041]

The hoof transfers a lot of heat very quickly. I exclusively use a tip temp of 600. Lead free, I use 700 F max. The hotter temp you use and repeatedly touching up (more thermal exposure) results in hardening of the innermetallic layers of the component leads. This can promote internal lead fracturing as well as thermal damage to the component body. Vertical drag is not for everyone. It requires practice and caution or you can splash all over your PCB. The objective: Get in and get out.

[PegasusRam]

Thumbs up to you!

before this vid i keep my hands off any SMT thingies, but now i get the flux you mentioned and i'm doing my practice over some dead computer PCBs ( with success!!) Thanks a lot for sharing your knowledge and experience.

Cheers

[jkgamm041]

Thumbs up to you as well. I'm glad that this is working for you. the more you practice, the more you will improve. I am confident that you will experience much success in your soldering results. Take care and my best to you.

[Hyperian]

i got a newbie question but how come when you apply the solder the solder doesnt connect all the pins together and go neatly on each pad?

[jkgamm041]

Solder in a wet, vertical state, will always follow its center of gravity, downward. In the vertical travel the wet solder will pull cleanly off each lead, leaving a nice toe, side and heel fillet on gull wing and PLCC J-lead components. The finer the pitch, say a QFP 208 .20 mm fine pitch, a little bridging will occur. Simply flux the leads and pull the bridge. Soon I will have an instructional DVD available for SMT & through-hole, basic through advanced.

[fireicer]

very very nice work looks like you've had plenty of practice lol.

urm it be nice to see how most peps and there techniques are for BGA soldering as i never done BGA before and i want to give it a go.

more vids needed

[jkgamm041]

Thank you for your comment. I have had a great deal of hands on experience as a rework specialist on printed circuit boards doing many different surface mount and through hole components. I am preparing a new video titled

"Surface Mount Soldering Tricks & Techniques: What you will never learn in the schools."

[yemsentral]

What is the liquid?

[jkgamm041]

Kester Low Solid Liquid Flux and alcohol for the clean up.

[alperuzi]

Isn't that an Authentec 3400 chip? I was soldering one of those without the flux a couple days ago. Now that I got flux, I'm gonna go back and redo it.

[jkgamm041]

Yes, it is an Authentec. I can lay these out real nice without extra flux. In general, if I am not encountering contamination or oxidation on the lands of my PCB or on the leads of my component, I can achieve the same results by using only the flux in my rosin core 63/37 solder and so can you or anyone else, if your technique, tip, and temp are correct.

[mavallarino]

Wow, nice technique - how much coffee do you drink? I have problems only with simple SMD devices (and without the coffee). What is the preparation technique you have utilised (cleaning, chemicals etc...). Sorry for this the ignorant question.

Comment for andreale1985: Maybe you can ask to hire jkgamm041 for training for you organisation?

[jkgamm041]

I don't drink coffee. My hand was skakey as I was working in an extremely confined area with a camera mounted a few inches away. One bump and I have to reset and refocus. I don't believe that any question is an ignorant one. If you don't know, you're suppose to ask. That's where I come in. I feel an obligation.

I prep in rework to remove or reduce surface contamination and or oxidation. I use alcohol, a cut down alcohol brush and Kimwipes. Pre and post inspection is also mandatory. Good luck.

[andreale1985]

I am in medical equipment manufacturing and we do a lot of soldering. Your biometrics replacement is really clean and that vertical soldering you do is so awesome.

I have never seen anything like that kind of soldering.

[jkgamm041]

Thank you for your comment. I developed my vertical and horizantal drag soldering techniques simply by trial and error. Anyone can utilize these techniques very easily. I train technicians to develope these techniques, which increases their productivity and improves their work quality. I hope you try these techniques. Within the next several weeks I will upload a demo on soldering QFP 80's, QFP 100's, SOIC

14's and SOIC 20's, to the highest standard, IPC Class 3.