Electronics > Beginners

Who inventes SOIC16?

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T3sl4co1l:
At what point does solder paste become too fat and lumpy to solder these things?

I suppose there are finer grades of paste out there?

Tim

Rick Law:

--- Quote from: kerouanton on June 03, 2018, 06:12:36 am ---Yesterday I've discovered a new class of SMD components... This is a 008004 size capacitor.

... image ...

Try to solder that by hand  ;D
...

--- End quote ---

Holy cow, that is small.

While it is designed for miniature elf to handle, but normal human can do it too.  Look very carefully, you'll see the instructions on the back of the SMD printed in French, English, Chinese, Korean, and Swahili on proper handling and soldering techniques for these amoeba size chips.  Just follow those instructions on the back of the chip and you'll do just fine.

(Sorry - can't resist making a joke...)

Rerouter:
Not for miniture elfs, clearly intended for "Lilliputians"

ejeffrey:

--- Quote from: uc on June 02, 2018, 02:48:06 pm ---The conclusion of my Q is that I feel really behind regarding electronic technology.
I probably will stay at “through hole to surface mount” and SOIC  until am master it.
But I must make an amusing comment.
So if I understand the correct technical progress toward future! 8)
In order to soldering the next generation electronic components I need:
1.   Electron microscope
2.   Soldering iron tip of 200 nm
3.   Steady hand
Take care

--- End quote ---

I'm definitely less adept at hand soldering than a lot of people around here, but I can't recommend enough even a cheap stereo optical microscope.  I use it to solder even relatively big components.  It turns out that even if you can see the components by eye, looking at the magnified view makes your hands steadier.

Another big help is to get a few  good tweezers.  An important part of surface mount soldering technique is getting the first 1-2 pins tacked down with the chip in the right place.  Solder has a lot of surface tension, so it is easy for small chips to move when you hit them with an iron.  Tweezers with different shaped tips (sharp, blunt, angled) are a good way to hold chips in place while you get the first solder joint.

Another important factor is to have a good PCB.  It used to be common to save money with single sided PCBs and no solder mask.  PCBs are so cheap now this isn't even useful, but can make SMD soldering really unpleasant.  Old, oxidized PCBs can also cause problems.

Finally, if your vision and hand steadiness are degrading, and learning to solder fine pitch SMD doesn't sound like too much fun, look into assembly services.  They cost money, but if you can afford it maybe be worth it.

alexg:
Needed two tweezers just to get 008004 out of the little cut tape package.

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