8 Oct
2004
8 Oct
'04
10:18 a.m.
From: "Vintage Computer Festival"
<vcf(a)siconic.com>
Pests of any kind should be watched for, including rodents that will pee
all over your circuit boards like little bastard teenage vandals!
---snip---
Hi
This is really bad stuff. One of the things I've seen with mouse
piss is that the legs of many IC's are steel cores with tin plating.
I've seen where the IC leg will look fiine but the entire insides
are rotted out from mouse piss. The lead would just crumble
when squeezed with needle nose pliers. I have in the past
assumed this was acid damage and use baking soda solution
and rinse. It seems to help but usually by the time I notice
it, the damage is already done.
I live in the mountains and critters are just part of living
here. Still, I wouldn't trade it for living in any city I know of.
Dwight
8 Oct
8 Oct
10:36 a.m.
In message <200410082218.PAA18131(a)clulw009.amd.com>
"Dwight K. Elvey" <dwight.elvey(a)amd.com> wrote:
This is really bad stuff. One of the things I've
seen with mouse
piss is that the legs of many IC's are steel cores with tin plating.
Steel? Are you sure?
Most of the manufacturers' datasheets I've seen say something along the lines
of "Pin material: Copper with [x]um tin-lead plating"...
I've seen where the IC leg will look fiine but the
entire insides
are rotted out from mouse piss.
Chinchilla urine seems to do the same sort of thing - had a steel cage that
was rendered unsafe in a year or so by a family of three chinchillas.
Later.
--
Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB,
philpem(a)philpem.me.uk | ViewFinder, 10BaseT Ethernet, 2-slice,
http://www.philpem.me.uk/ | 48xCD, ARCINv6c IDE, SCSI
... My hat covers my head.... Just like hair used to!!
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