Chip storage - Was: 40 pin DIP chip tubes?

Dave McGuire mcguire at neurotica.com
Thu Mar 10 20:30:09 CST 2011


On 3/10/11 8:19 PM, Mr Ian Primus wrote:
>> Pin corrosion sets in a few years after the disintegration if the
>> foam is left alone enough to stay intact.
>
> Yes, and it's especially bad on the ceramic packages with the fragile
> side-attached legs - not the ones that exit the package and then bend
> 90 degrees down, but the ones that are simply attached to the side of
> the chip body. Don't know what they're called or how better to
> describe it...

   The term you're looking for is "side brazed".

> But something much more annoying, that just happened to me (and
> prompted the post), was receiving a new, old stock Zilog prototyping
> part (microcontroller w/ piggyback EPROM socket) that I paid too much
> for, only to open the package and find it still neatly in it's
> original little promotional clamshell box. Stuck in that stupid foam.
> The legs are all still attached, but they're all black with
> corrosion. I sincerely hope that it will still make suitable contact
> with a socket. If not, I suppose I can solder it into a machine
> tooled socket, but... Grumble...

   Ugh!!  Was it perhaps a Z8603 or Z8613?

                -Dave

-- 
Dave McGuire
Port Charlotte, FL



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