I'm reaching out for a little advise from anyone who does soldering using hot air. I personally have never done SMD using hot air. I have reballed chips and everything in the past using IR. Now, my question is what is the best solder paste/ flux to use for chips that have pin along the outside? I have a chip here that I would like to attempt to put back on but I'm not quite sure on what flux or solderpaste to use, and how much of it. If anyone has done reballing than you know it's like an art form and everything has to be just right. So looking at how close these pins are I would like to make sure I'm doing the process correct for my first time. Any and all suggestions are very much appricated along with any info on what is the best flux or solder paste to use. Again, thanks for the help. If you would like to see a picture of the chip let me know, I'll get an image under the scope for you!
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This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.
There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as... -
REWORK FLUXES Multifix 425-01 and 450-01 are tacky fluxes designed for use in a wide range of electronics assembly and rework processes. They represent a range of activities and residue levels to meet different customer requirements.
- No Clean Formulations
- Low residue
- Range of activity to deal with different component solderability
- Halide free
- Suitable for dispensing
- Compatible with solder coatings and/or No Clean flux cored solder wire product range
Both products are supplied in syringes or cartridges for application by dispensing....10-07-2024, 06:02 AM -
Hello everyone today I see this advertisement about a soldering paste that is according to them video posted as almost fantastic for all surface soldering to the point that one becomes suspicious
Therefore, your experience is of great importance. Is it really as good as it looks or ?... -
Hi guys. Well I thought solder paste was just solder paste but apparently not
I watched this short video
https://www.youtube.com/watch?v=uSb1fgCMUug
I want to try solder paste for resoldering BGA chips and LGA sockets as I am having no luck at the moment. I have no problem safely removing the old part, it's getting the replacement one to solder which is where I am going wrong. The Type 5 solder paste link he gives in the above video says it is not available.
I want to use the paste like in the video on this thread
https://www.... -
Hello, I'm a beginner for micro soldering. Right now I have some difficult to solder a qfn 20, I guess I put too much solder on the thermal-ground pad, the result is a corner of chip wich don't touch the board (last try).
I use a wire solder with hot air, I tin the board and chip before with iron and I use good flux.
I will have to solder a LVDS connector (40 pins, laptop pc), I saw a solder paste in seringe, good quality (it does not scatter).
See the test :
https://youtu.be/bNAzC-EvqHs?t=1767
With hot air from bellow the board, that's...
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