6113Re: [softrock40] Use of DDS-60
- Sep 18, 2006ian mcphedran wrote:
> Hi Tom, I am trying to build a dds-60 using a 230v Hexacon SMDHi all, this works, I've done it many times and it looks like its been
> soldering iron I bought in the U.K. from a supplier of SMD parts who
> no longer is in business. The tip is o.k. for most smd things but the
> 28 pin analog devices chip is too closely spaced for it. Can I ask
> what is the iron you used for your assembly work?
> Ian Gm3GTQ
through IR reflow.
What you need is rework flux, solder wick ( used ), and a good soldering
use a liberal amount of rework flux along the pins the whole length of
one side of the IC
with the solder wick make a trough that fits the size of the soldering
iron bit and flood it with solder.
run the solder wick across the IC pins with the tip of the soldering
iron in the solder wick trough.
Practice one a duff IC and a scrap board a few times, when you get the
hang of it it makes a a nice job
wash it afterward to remove the surplus flux and you wont know, even
under a microscope its been hand
I use a Metcal Iron with a 2mm chisel bit when doing it, the important
thing is to keep the solder molten as the copper braid( solder wick) is
across the pins.
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