15 Mar
2005
15 Mar
'05
3:08 p.m.
Jim Beacon wrote:
From: "Dwight K. Elvey" <dwight.elvey at
amd.com>
>>From: "Tom Jennings" <tomj at wps.com>
>>
>>CMOS isn't *THAT* sensitive; easy, benign, reasonable precautions
>>are more than adequate. Ben, the days of early MOS/CMOS
>>hypersensitivity to static are long gone. Even 1970's 4000 series
>>had input-protection diodes.
>
> The 4051,4052 and 4053 were very static sensitive. But it
>is try that most were relatively insensitive. Still, if you
>are hitting a part with a spark large enough to make
>a sound, you are most likely doing some damage, even if
>it doesn't show right away.
>Dwight
>
I've changed an unholy amount of these in old analogue synthesizers.
Ensoniq Mirages seem to be the worst for it.
Gordon.