----- Original Message -----
From: "Pete Turnbull" <pete_at_dunnington.u-net.com>
To: <classiccmp_at_classiccmp.org>
Sent: Thursday, May 09, 2002 03:22 AM
Subject: Re: IRIX on Personal Iris
> On May 9, 0:28, Tony Duell wrote:
> > > Sounds easy enough. Now all I need to do is find someone with an SMD
> rework
> > > station. ^_^ This'd be a good time to see about upgrading my
> SPARCBook2 to
> >
> > For something like this you could probably use a fine-tipped soldering
> > iron and fine silver-loaded solder. You'll have to work slowly and
> > carefully, but SMD soldering is possible with normal hand tools...
>
> Indeed it is, and that's what I'd often do, but in this case the DRAMs are
> very close together and I don't think it's possible to get even the finest
> tip in between, certainly not at the angle needed to get to the pads under
> the J-leads.
Yes, that's the problem I see too. I have confidence in my ability to do
delicate work, but this well take specialized equipment.
>
> I used a hot air gun last time -- similar to the type used
> for paint stripping or heat-shrink tubing, except that mine is
> thermostatically controlled. Use lots of flux, or tiny amounts of fresh
> SMD rework solder paste, keep the board level and firmly supported, and
> practice on a scrap item first.
D' you think a hairdryer would work? :) Ok, seriously, any problems with
existing parts coming unstuck and getting blown around? Or is the nozzle
tight enough that other chips usually don't get hot enough?
>
> Given the lack of space between the ICs, if you do know someone with a
> proper SMD rework station, that would be safer. It's worth mentioning
that
> last time I showed this to someone who does this sort of rework
> periodically, the first reaction was a sharp intake of breath!
^_^
>
> --
> Pete Peter Turnbull
Bob
Received on Thu May 09 2002 - 06:24:56 BST