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Soldering MIGHT be torture...

Ika

Ika

Lifer
pic 1
pic 2

All those little pins need to be soldered down without making any bridges. Joy!

The kicker is, the ruler on the right side is showing centimeters... that's small... :frown:

Anyone have any "tips" on soldering this thing?
 
Iv done a small chip like that, its not as bad as it look. You can try doing each pin on its own, or just slide the iron from side to side in one smooth motion. Forget what the tip is called, but its a hollow tube-like tip.
 
Use a good soldering iron, period. They make small, sharp tips for that purpose. If you go with the basic $20 Radio Shack iron with the standard tip (which by itself would probably cover 3 of those pins), it isn't going to be pretty.
 
There's a technique to do this really really easily with a heat-gun or something, it's like the beads of solder separate on their own.. I forget what it's called but I saw it in electronics class in high school. Doing that manually is not a very good option, you can do it with a different method, I'm sure someone here knows the name of it.
 
Originally posted by: Aflac
pic 1
pic 2

All those little pins need to be soldered down without making any bridges. Joy!

The kicker is, the ruler on the right side is showing centimeters... that's small... :frown:

Anyone have any "tips" on soldering this thing?
Click to expand...

That's a breeze man. Here's what you do.

You will need a solder iron with a fine tip, thin soolder and a moist sponge to clean the tip.
Chose 2 pads (on the board) at the opposite end of the chip and lightly tin them.
Align the chip with your fingers or a tool and keep it steady.
Heat the pin with the pre tinned pad until the chip bonds to the pad, repeat for the other pad. The chip is now fixed to the board and you can solder the rest by hand.
Keep the tip clean and lightly tinned. Heat the pin on the chip and add a tiny amount of solder to each solder joint.

Good luck. 🙂
 
Hummmmmm. If I were going to solder a chip, and not remove it again, I'd hit a couple outside pins to hold the chip, then snip off the extra length, each time moving inward, cutting off the excess of each pin, as I soldered it. That's the weird picture I have in my mind. 🙂
 
Originally posted by: Aflac
Originally posted by: Howard
http://www.instructables.com/id/EBXC76M6V5EP28623C/
Click to expand...

Very cool, but the chip I'm soldering can only take about 125ºC before it cooks.

I guess I'll try the wiping method, but first I'll probably need a new iron. This one looks good; anyone have any thoughts?
Click to expand...

125 deg C means that the silicon inside can only get to 125 deg C. All or most components can withstand higher temps on the pins but only for 10 seconds or so.

The datasheet of your component (found here) says on page 3 that fro soldering the lead temperature (pin itself) can be 260 deg C for 5 secs (that's 500F).

 
The chip mounting points will be a bit of a pain, but the other stuff is pretty standard. Surface mounting is where stuff really gets to be obnoxious.
 
ygpm ;P

the trick is to not solder them individually. align the chip properly, tack a vew pins on one side, melt a blob of solder over all the pins on the other side. remove with the help of surface tension by sliding the iron down the pins holding the board vertically. basically the same concept as wave soldering.
 
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