Learn How to Solder and Desolder QFN IC
ฝัง
- เผยแพร่เมื่อ 18 เม.ย. 2024
- QFN IC can seem tricky at first but they are not so difficult so solder. It all comes down to one thing. Watch to find out what that is
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SOLDERING
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Thank you
Richard
Great post Rich, It's fantastic that people and suppliers adapt to what was obviously envisaged originally as a non repairable item by Joe Public, long may these repairs persist despite manufacturers best efforts to screw us over!
Never underestimate the heating plate from a coffee machine. 😃
Heya, yes nice soldering and desoldering video wih lot and lots of tippical and practical tips
I use a chunk of heavy (10mm) thick steel, about 70mm diameter. I use a cheap thermocouple temp meter to measure the metal chunk. I use the small gas burner on the kitchen stove. I get the metal up to 150 deg C.
thank you grandpa
you missed the obvious hot plate - a clothes iron, but a pig to hold unless you have a couple of spare bricks
Great Video and useful to me. Got some of the kit, but not used it much yet. Need to find some scrap boards to practice on.
My pre-heater is a 12x7cm PTC heating element. It goes to a fixed temperature (and thus can never overheat the board). And it cost a whopping 4 Euro from China (delivered).
Fantastic.
I use the heated bed on my 3D printer but keep meaning to get an old clothes iron to make a board heater for when i have a print running.
Good video. I had a job interview years ago at an electronics manufacturing plant and was asked what is one of the worst packages to work with. We said QFN at the same time.
My heat gun has a nozzle that directs the air sideways.
Great video, thanks for spending the time creating it. Just wondering if you will finish the bga rework tutorial series you published last year?
Kids, Richard said "Anything to warm it up" but the answer is NO, you cannot use the Microwave oven. ;-)
Hi Rich, great video. I have a question for you ( I am new to this soldering stuff ) Once you solder the chip on , should I re-flow a second time and squeeze the chip down with some tweezers? I seen a few videos that suggested that but I have no idea if that's BS or what. Thanks very much. Love your videos man, your right down to earth
With no visible pins I thought soldering these by hand would be near impossible, but using plenty of flux and a fine tipped bit I did a number of these packages (new parts/PCBs) one contact at a time. Just run the tinned tip up the pad to the package and the solder will magically wicks itself underneath. A stereo microscope with plenty of working distance (so you can tilt the board and come at it from the side) helps an awful lot. Next time I'll give the drag soldering a go.
You know, I talk to so many companies, pro audio mainly that have been switching fully over the last decade to SMC from Through Hole designs, and so many of them get defensive at the mention of SMC, and just yell at you, and say what's wrong with SMC, it's better.
When did all components become a lot more heat tolerant ? LOL... have they???
I saw a video on tiktok showing a 7805 regulater metal bit up, as a tiny heat pad. I believe they connected 5 volts to the output!, it drew 1 amp. I've not tried it myself yet., but could work?
Clothes iron, upside down