I guess I wasn't too clear; it was the bare devices we were trying to destroy; the VIC20 was just used for testing.
The largest discharge we got was from an acrylic rod and the cat. ----- Original Message ----- From: "Charles P. Steinmetz" <[email protected]> To: "Discussion of precise time and frequency measurement" <[email protected]> Sent: Tuesday, January 26, 2010 7:04:11 AM GMT -07:00 US/Canada Mountain Subject: Re: [time-nuts] Conducting Bench Top Material Dave wrote: >Back about 1981, we had piles of 6502s, etc and decide to some >"antistatic testing". We put a 40pin ZIF socket into a VIC-20, and >then set about trying to fry the uP using carpet, a cat, car seats, >etc. The DUT was then put back into the VIC and series of tests run >to verify operation. I don't think we ever had a failure. Of course, >there may have been some hiding that we missed, but all the static >damage I've seen has been pretty severe. > >That said, I always use a wrist strap and mat if I'm working on >something I don't want to break further. Installed components are generally much less vulnerable to ESD than bare parts, because there are leakage paths (both intentional and otherwise) on a circuit board that allow the ESD to flow around the component rather than through it. With a naked part, any ESD to one of its leads has to flow through its other leads or the case of the device, thereby maximizing any damage. Best regards, Charles _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
