23 Dec
2017
23 Dec
'17
5:04 p.m.
On 12/23/2017 10:00 AM, dwight via cctalk wrote:
When I had access to a wire bonder, we took EPROMs
that had been plugged in upside down and removed the lids. We'd see a blown wire and
replace it.
On several of these parts we found that 100% worked. So it would seem that no silicon
damage was done, just the bonding wire was blown like a fuse.
I made my own 2716-2764 programmer MANY years ago. On a few occasions I
put an EPROM in wrong and saw the bonding wires light up! I killed
power and corrected the mistake, and the EPROM worked fine.
Jon