Re: Soldering 402 chip R's

On Sep 19, 1:08 pm, Spehro Pefhany <speffS...@xxxxxxxxxxxxxxxxxxxxxxx>
wrote:
On Wed, 19 Sep 2007 13:02:21 -0700, Paul <energymo...@xxxxxxxxx>
wrote:

Does anyone have any advice on soldering 402 size chip resistors to a
PCB? I thought perhaps some liquid solder that would slowly dry when
heat is applied from a heat gun.

I just use an iron. You need to actively hold them down or they'll get
sucked into the solder blob by surface tension. I tin one side, attach
the resistor then resolder both sides to make it pretty. A bit slow,
and you can expect to lose (as in never see again) some percentage of
the part.


Sounds like you're rather skillful. I can hardly see these buggers
with the naked eye. They're about the size of a grain of sand. So you
remove them from the paper, place it on the PCB, then place an iron
across the entire R? What percentage of R's will stick to the iron?

.

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