Storage Hazards

From: Dwight K. Elvey <dwight.elvey_at_amd.com>
Date: Fri Oct 8 19:35:51 2004

>From: "Philip Pemberton" <philpem_at_dsl.pipex.com>
>
>In message <200410082218.PAA18131_at_clulw009.amd.com>
> "Dwight K. Elvey" <dwight.elvey_at_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.

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
Received on Fri Oct 08 2004 - 19:35:51 BST