Storage Hazards - test-drb@ccmp.vtda.org

8 Oct 2004

...
 From: "Philip Pemberton"
&lt;philpem(a)dsl.pipex.com&gt;

In message &lt;200410082218.PAA18131(a)clulw009.amd.com&gt;
          "Dwight K. Elvey" &lt;dwight.elvey(a)amd.com&gt; 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. 
Hi Phil
 Check for your self. Use a magnet. If it sticks, it is steel inside,
if not, it is copper. At a previous company I worked at, we always
trimmed the leads of IC's and passives. I would say that about 75%
of the IC leads would stick to a magnet and some 20% of the passive
leads would also stick.
Dwight