How To Replace Surface Mount IC / smd IC || smd Soldering
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- Опубликовано: 27 апр 2023
- How to replace surface mount / smd IC is a nice clear soldering tutorial showing you a straight forward , easy to follow method for replacing a 100 PIN QFP ( Quad flat pack ) IC.
See also how you can protect your nearby components while removing your smd IC's , and learn the temperatures and solder you need to make your job so much easier .
The Solder used in this video is available from BLT Circuits ( England ) , temperature used for resoldering the IC was 340 degrees Celsius ( leaded solder ) , plus 340 - 400 degrees Celsius for the removal , depends what your removing , using a QUICK861DA station.
If you enjoy this soldering tutorial and find it of use please like and subscribe and hit the notification Bell so as to not miss out on any future soldering tutorials. Also please check out my many other soldering guides covering a wide variety of different subjects
Thank you for your time and good luck .
Mr Solderfix
#icreplacement #soldering #smdsoldering 
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It's pleasant to watch soldering done well, and it gives a sense that it's actually possible. :) Thanks for sharing these!
Hi , thank you for your comment, much appreciated. If the videos can help anyone then that's great . Thanks again , take care 👍
You always make it look so easy.
Hi , thank you for your comment , very much appreciated 👍
Short, sweet and to the point. Excellent video and very informative. Thanks!
Hi , thank you for your comment, much appreciated. Hopefully this straight forward method can show people that it can be done without to much stress. Thanks again , take care. 👍
Another Master at work.What a privilege to watch you work.
Hi , thank you for supporting my channel , very kind of you . If my videos can help a few people out with their soldering. / Desoldering issues then I'm happy . Thanks again , take care 👍
I just first wanted to say thank you for all the hard work you do when it comes to producing these videos and sharing your knowledge with us. While I have learned so much from your videos (which I often put the information to use right way by practicing on "junk boards") I do have one question, when it comes to removing and replacing SMD ICs (and in this case specifically a BGA IC) how to you properly lift the chip from the pcb when there are a decent number of smaller SMD parts on the back side of the PCB just under the IC you are going to lift? My first idea is to use the pre-heating station to heat the board to 100C and then use the hot air gun plus Flux to heat the BGA area up to the point where I can lift the chip; however, I am worried that all the smd resistors and capacitors on the back side of the PCB will fall off when I do this.
Thank you for sharing and teaching these correct techniques, thank you very much!
Hi , thank you, I'm glad you enjoyed the video 👍
Best of all in the youtube on the soldering, you gave me the confidence. God bless you
Hi , thank you so much for your comment , much appreciated. The more the solder the better you will get as you learn about tools , different size solders etc . I'm trying to cover all these subjects in my videos to try and help people along . Thanks again , take care 👍
YAY!!!!! Another one! :)
No one tops you're videos my friend.. A true Professional at work :)
Hi , thank you for your support of my channel , much appreciated. I'm glad you enjoy the videos , hopefully they can help people with their soldering issues . Thanks again , take care 👍
Thank you for all your lessons. I appreciate you
Hi , thank you for your support of my channel , very much appreciated. I'm glad you enjoy the videos. I will always post more when I get some spare time . Thanks again , take care 👍
Excellent work. I have been going through your list of videos and practising on some old circuit boards. Thanks for sharing 😁
Hi , thank you for supporting my channel , much appreciated. I've tried to improve my videos as I've gone along , I know the early ones had poor sound , clarity etc so hopefully people can see the improvement. Thanks again , and good luck with all your soldering projects 👍
Poetry in motion.
Hi , thank you, I'm glad you enjoyed the video 👍
Pretty awesome, helpful, full of experience and much useful , thank you so much
Hi , thank you for watching the video and commenting , your support is very much appreciated 👍
I am Brazilian learning soldering with you. I have just started a job as hardware technician. Thanks for sharing your knowledge . Much appreciated :)
Hi , thank you for your comment, much appreciated. I am glad you enjoy the video's and they have been useful for you. Good luck with all of your soldering projects in the future and thanks again 👍
@@mrsolderfix3996 😊
Very nice work. I am trying to up my SMT game, and your videos are helping a lot.
Hi , thank you for your comment , much appreciated. I'm glad you have found the video's useful , that's great. All I wanted to do when I started these videos was to help a few people out with their soldering / desoldering issues so it's always good to hear they have been of use. Thanks again , take care 👍
Thank you, another decent video.
Hi , thank you for your support, always appreciated 👍
Thank you for this excellent video.
Hi , thank you for watching the video and commenting , your support is very much appreciated 👍
Thanks for sharing this knowledge
Hi , thank you for watching the video and commenting , very much appreciated 👍
I recommend the Amtech NC-559-V3-TF flux. great stuff
Thank you for these videos
Hi , thank you for your support of my channel , very much appreciated . If my videos can help a few people out with their soldering / desoldering issues then I'm happy . Thanks again , take care 👍
Hello Mr soldering
I have to say
You're the best ever
Congrats
Fron Venezuela 🇻🇪 south America
Hi , thank you for your support of my channel and your comment, very much appreciated. If I can help anyone then I'm happy. Thanks again , take care 👍
@@mrsolderfix3996 thank you for answering Mr solderfix.
Hi , no problem , take care 👍
Nice video, well done, keep it up, thanks for sharing it :)
Hi , thank you for watching the video and commenting , very much appreciated 👍
Awesome......Thank you!
Hi , thank you for watching the video and commenting , your support is very much appreciated 👍
Awesome!
Hi , thank you for watching the video and commenting , very much appreciated 👍
Your operation is very smooth and I have learned a lot!
Hi , thank you for your comment, I'm glad you found the video useful . I will always post more videos when I can to try and help people . Thanks again , take care 👍
art at this component level Sir
Hi , thank you for watching the video and commenting , much appreciated 👍
Thanks for sharing
Hi , thank you for your comment , much appreciated 👍
Thankyou, your videos are just what i needed. I'm having difficulty resoldering in an ic on what looks like a ceramic pcb. I snipped half the legs off which sent a shockwave dislodging the pads on that side. So i can't solder to the substrate underneath, although it is conductive. The other side is ok as i just flexed the ic like a hinge until the oins snapped. I still have useable tinned pads on that side. I'm trying conductive glue on the padless side, but it's tricky as i messed up taking the weight off the ic too soon as it was curing. I bet you could sort it. If only i could send it to you...
Amazing!
Hi , thank you for watching the video and commenting , your support is very much appreciated 👍
Thanks, well presented. I need to practise more with hot air - I keep burning boards or melting surrounding parts before a part desolders. I’ll try out some aluminium tape!
Hi , thank you for your comment , much appreciated. Aluminium foil will definitely help you protect your parts , it does do an amazing job . Lots of people make the mistake of using Kapton tape for protection but heat will go through this and still melt the plastic underneath . 3M or Advance tapes sell adhesive lined foil tape and others will sell it as well . Hope you get on ok , thanks again 👍
Great video❤
Hi , thank you for watching the video and commenting , much appreciated 👍
I tried it, good work
Hi , thank you for your comment , very kind of you 👍
Thank you for yet another informative video, while being an old hand, you are never old enough not to learn new tricks!
Can you let me know where you managed to obtain .25mm leaded solder andf they Alluminum tape.
Once again great stuff keep it up!
crikey mate, such a steady hand, brilliant, getting me some 3m alu tape, thanks, great tips...
Hi , thank you for your comment, much appreciated. We can all improve the more we solder , hopefully I can help a few people . The aluminium tape is great , adhesive backed as well , much better protection against heat than Kapton tape. There is other aluminium brands out there , massive difference in prices . You don't need to spend loads just try to get one with adhesive on so stays in place while using hot air.
I will probably post a video shortly on what you can protect with this tape , plastic connectors , headers etc. Thanks again , take care 👍
Between awesome video
I find sweep soldering much faster and easier than doing each leg individually. Good vid though 👍
Hi , thank you for your comment , much appreciated . I've always said on my videos that if you find a method you like stick with it . We are all different, I just personally prefer the individual method . Thanks again , take care 👍
amazing! super helpful :)))
Hi , thank you so much for watching the video and commenting , really appreciated . Hopefully it can help a few people out . Thanks again , take care 👍
Super cunning!
Hi , thank you for your support of my channel , very much appreciated 👍
Great! Better than factory. Thanks a lot
Hi , thank you for your comment. I guess you watch Northridge fix , just wish I had his subscribers 😁
@@mrsolderfix3996 😂😂
👍
Thanks!
Hi , you are a star , thank you very , very much . My friends told me a while back to start a RUclips channel doing soldering as they thought I could help some people out . I was never driven enough to start it but they kept on at me to do it . I'm glad I did because I get a lot of comments from people on RUclips saying how I've helped them which is great I guess . It's a bit embarrassing at times as I just feel like I'm doing my normal day to day job . People like yourself make me want to carry on and hopefully help more people along the way . Thank you so much , keep up the soldering 👍
@@mrsolderfix3996 I have always loved things that take time and attention to detail. I'm 41 and I've always been a techie. My first job was in IT at 16 years old. The past 10 years or so my focus shifted from putting parts together, to Building my own and fixing the old ones that I love. I'm a fast learner and turned to RUclips for info on fixing electronics. There are many good videos on the subject, But I cannot tell you how much I love you're approach and detail. Thank you for choosing to share you're knowledge. Knowledge is power my friend.
Hi , thanks again for your comment. It's always nice when you get people like yourself saying my videos have been useful to them . I use RUclips for various things from time to time and I've been helped , it's just nice that I can pass on something I sort of know a little bit about . We can all help each other I guess. Thanks for your support and keep up all your good work , take care 👍
Mr Solderfix I wonder would you do a video or some tips on soldering j-lead surfacemount IC's I see them sometimes on vintage computers. I guess they should be PLCC socketed but sometimes just soldered on. Thanks for all the great content so far!
Hi , thank you for watching the video and commenting , much appreciated . I posted a video a while back called Soldering common IC packages . The component you mentioned is within that video somewhere . It's a very clear guide as to how I personally solder them in place . The video features QFN , QFP and ( J- lead ) , hopefully you can find it . Thanks again , take care 👍
@@mrsolderfix3996 Thanks! my apologies for not looking :)
Hi , no problem , hopefully it is useful to you . Thanks again for your support 👍
Great video! Are you using leaded 0.25mm solder? If so, what brand / model are you using, please?
Great demo of how to do this properly and neatly.
I have a problem with desoldering braid "sticking" to pads. Plenty of flux, I think. Could it be iron head too small, not enough heat, flux has burnt off, poor quality braid....any ideas?
Hi wow perfect.. can i ask what settings for Heat .. for hot air and soldering iron ??
Thanx sir
Hi , thank you for watching the video and commenting , much appreciated 👍
Hi @mrsolderfix3996
Great video...I have a Samsung TQFP-160 S3C44B0X01 160 pin beast that needs removing and replacing on a board. I am not sure if I have the necessary skills that you have acquired and I'm not sure I am brave enough either. Do you undertake private work ?? I assume you are London based....Keep up the great work...and keep the wonderful videos rolling !! Thanks...
Great video! What is that you are using to apply the flux? I'm also curious if you think an IC with a large exposed ground pad on the bottom needs to be treated differently, or if the same method applies? Thanks for sharing. This is incredibly helpful.
It's a cable tie end
Thanks for this nice video. I really like your work. I just want to ask can I use the contact cleaner spray instead of alcohol for boards cleaning? Thanks again
Hi , thank you for your question and your support , much appreciated . I'm sorry I haven't used the spray you've mentioned so I can really answer you on that 🤷sorry
what should be the lead size for soldering smd components and which type of flux should we use
what about the adhesive on the aluminum tape? is that particular tape special for circuit boards ?
Really great tutorial. U make it look way too easy 😅
Hi , thank you for watching the video and commenting , very much appreciated . I guess I've just done so much soldering over the years i do find it a lot easier now . Thanks again for your support , take care 👍
I can't seem to find any 0.25mm leaded solder. The one I have is 1mm by Silverline which works fine for other stuff, but is too large for tiny pads like this.
Hi , thank you for your comment . I don't know where you are living but if you are in the UK try BLT Circuits , speak to Greg he will be able to help you .If in Europe try Farnell or RS Components or if in America try Mouser or Digikey although some companies now are a bit funny about selling leaded solder to the public . Hope you get on ok , thanks again 👍
To over come glue issue , if apply 400deg c can get off chip nicely but ic spoiled which is removed from doner pcb ,
Hi , thank you for your comment. If you remove an IC at 400 degrees Celsius and it is attached by a thermal pad underneath it is very rare that it cannot be reused. If it comes off cleanly in my experience ( and I've changed 1,000s ) it can easily be cleaned up and used again .If IC's are bonded down for example with underfill compound they are not worth trying to take off and clean up . Hope that answers this point .
In principle, I solder everything with the Sn60Pb39Cu1 solder, even if the print was made with lead-free solder. So far I haven't had any problems with the incompatibility of the two solders.
Hi , thank you for your comment, much appreciated 👍
Thanks, great job as always. Please indicate the exact model of the microscope and video recording camera you are using. Have you found a new flux, can you share the name?
Hello. In the video, he said that he uses the remains of the old flux that is discontinued. I am also trying to find a liquid high -quality flux for soldering.
Hi, I really like your videos and am trying to follow along while learning to solder some retro video games I have. What kind of iron tips do you use? My iron is a T12 clone and the conic shaped tip I have doesn't work nearly as well as the one you use in your videos. Do you just bump up the heat on your soldering iron when soldering the smaller package components?
Hi , thank you for your comment, much appreciated. I use a Weller TCP S iron mainly ( I also have an amazing micro Metcal iron ) but all of my videos are made using the Weller. It's a 50 Watt iron and the tips I use in the video are PTP7 ( small conical) and DD8 ( large flat sided ) . I generally solder leaded solder at about 330 degrees Celsius and for lead free about 360 to 370 degrees Celsius. I may vary these slightly by putting hotter tips in but very rarely. You shouldn't need to bump up the heat when doing small devices etc but maybe these are on a ground plain so will take a little longer. I'm sure I speak about this sort of scenario in some of my other videos . I don't know your type of iron so can't comment on that . If you can afford one the best makes to get by far are Weller and Metcal . Hope that helps , thanks again 👍
@@mrsolderfix3996 it does help a lot, I think the conical tip you use is a little larger than the one I have, so that might be what's making it a little harder for me to get the heat to transfer. I'll look up the dimensions of the tip you use and see if the difference is that big. Thanks for the info!
What is the difference in using 138c and 180c solder. ICs dont go above 80 or 90C right, so can i use 138c solder on qfn and other smd?
Hey I am new to fixing soldiering, what is the liquid you used? You said reflux something?
Hi , thank you for your comment . The liquid is just flux . It's essential really to get good solder joints . Even though solder has flux inside it adding more external flux is vital if you want good consistent solder joints . Thanks again 👍
Thanks! Between I really liked the video!@@mrsolderfix3996
Google it!
Its an art
Hi , thank you for watching the video and commenting , your support is very much appreciated 👍
Are these wider than normal tweezers? I'm struggling to find tweezers that open wide enough to grip large chips
What microscope do you use?
Frequently I have facing difficulty is, some makers they have applied glue below the ic , hard to judge whether lead not yet melted
well or glue still sticking hard , if force to get off , pcb track peel off , or what I have removed ic few pens bending unable to use this ic again , any idea pls 🙏
Amazing job as always! Could you reuse the component on another board? Would you clean the old solder off somehow, or are the pins too delicate?
Hi , thank you for watching the video and commenting , much appreciated . If the component I was removing , like for example the one in this video , needed to be refused it's actually pretty easy to clean up . With a fine pitch IC I simply wick off the excess solder on a few pins at a time with the braid going in the same straight direction as the pins . Alternatively another method that works well is I turn the ic over and run my wick from one end to the other with very little pressure . This works great especially if you add external flux to your braid first which I always keep mentioning in my videos . Hope that helps , thanks again 👍
@@mrsolderfix3996 thank you for the detailed response! I'll try when I start learning to use hot air. I was curious as it's often cheaper to by an IC on a breakout board than bare
Hi , thanks for your comment . I will post a video sometime of a battered IC and show how you can straighten legs , clean solder off etc . I have posted a video on my RUclips channel ( quite an old one ) showing how I replaced 6 broken off pins on an IC using 2 different methods . Amazing results can be achieved with practice . Thanks again for your time , good luck 👍
@@mrsolderfix3996 That would be so helpful, thank you for sharing your amazing skills with us
Hi , no problem , thanks for your support 👍
Have you tried the Qualitek flux from somersetsolders if so is it any good
Hi , thank you for your comment. Unfortunately I haven't tried this flux so I can't really comment on its performance . Maybe someone else who comes on this chat has used it and could leave an opinion?
Thanks again , take care 👍
Hey, i am facing one Problem with my BMP581 Sensor,it is on flex PCB ,now by mistake i gave connection no 6 instead of 7 ,how i can solve this issue,is there any chance that i can solve this issue , please guide me
what tweezers you using ?none. of mine open that wide
Hi , thank you for your comment . I have recently posted a video on my channel totally dedicated to Tweezers. The pair you are asking about are mentioned within this video . Maybe it will help you . Thanks again , take care 👍
but around 350-400c' desoldering heat broking the chip die, how did you protect chips from this hi-temps?
Hi , IC's like this can take temperatures of 350 - 400 no problem at all . Thanks
how long can you apply the hot air to the PCB before it begins to delaminate at say 350 c?
Hi , thank you for your question. You can get away with a lot longer than I showed in this video . If your heat gunning a component in an area where there is no other components surrounding it and if you hold the board up to the light and this area appears as though there is no layers in there you have to be careful as it could delaminate with 2 much heat . Where boards have layers top bottom or inner then you can put a lot more heat for longer into these areas and be fine . Hope that sort of explains . I've used a lot higher than 350 degrees Celsius and always been perfectly fine . If heat gunning right on the edge of a board , try and place some aluminium foil around the edge , this will stop it burning and potentially delaminating. Hope that sort of answers your question . Good luck 👍
@@mrsolderfix3996 Thank you, really good insights!
Hi , no problem , hope you get on ok with all of your soldering projects, thanks again for watching 👍
@@mrsolderfix3996 I have improved my soldering (and desoldering) skills quite a lot watching your videos! Never touched SMD work before, now I am into my third project and feel very confident with 1206 and 0603 stuff. Thanks!
Hi , it's great to hear you are improving, excellent . If I can help a few people along with their soldering that's great. Remember , you will get there , stick with it . Thanks for all your support , take care 👍
Hi what soldering iron did you use for this job.
Hi , thank you for your comment , much appreciated . In this video I used a Weller TCP S soldering iron which is 50 watt with a PTP7 conical tip . Quite an old style iron but still great to work with . Hope that helps , thanks again 👍
Hi. What kind of flux do you use? Thx
Hi , thank you for your question. The flux used in this video was SMFL200D which is the best rework flux I've ever used . Unfortunately it's recently been discontinued so I'm looking for a new type at this point in time. I still have a small amount left but when I find a decent alternative ( which will be hard ) I will post it on RUclips. Thanks again , take care 👍
Модель камеры для тринокулярного микроскопа?
always remove the lead fre rubbish solder :)
Temperature 400 and air 80 ?
Hi , thank you for your comment, yes you are correct. 👍
Tamprachar 340 Air ?
And also... I want to Donate to the time you put into these videos. Ive tried them myself and its not easy. I will donate if you give me a way.
Hi , thank you. But you really don't have to donate anything , I just like making the videos . The only way I can see if you really , really did want to is to use the super thanks symbol that's underneath the video when watching it on your phone. Thanks again for everything , very kind of you 👍
@@mrsolderfix3996 Done!
Hi , it's ever so kind of you , thank you so much for your very generous donation . I will keep posting videos when I can hoping to help a few people , that's all I want to do , we can all then improve together. Thank you so much again , take care 👍
It's a good video, but why stretch this video and show how to solder all 4 sides
Hi , thank you for your comment. I see your point but I've done other videos where I've done exactly as you've suggested and been told I should have shown the complete device so basically whatever I do I can't really win 🤷
I prefer seeing the complete soldering process
Hi , thank you for your comment , your support is very much appreciated 👍
@@mrsolderfix3996 I didn't want to criticize you, it's my own fault if I don't look closely
Hi , no problem . Thank you for watching the video in the first place , much appreciated. Take care and thanks again 👍