[vcf-midatlantic] Can anyone identify this mystery IC

[Dave McGuire]

On 8/21/22 12:39, Douglas Crawford via vcf-midatlantic wrote:
> These are the transistors?
> https://imgur.com/aLpqVpE

   I'd need to look more closely, but those appear to be clusters of 
transistors, six of them.  They are likely gates.

> I got one additional response from another designer:
> "Looks like some kind of gate array with only the metalization layer 
> being clearly visible. I worked on alot of these in the late 70's. I 
> have no explanation for the bonding pad structures."

   Agreed; this has either had its passivation layer removed, or it had 
never been applied.  I suspect the latter, as it would've been removed 
with acid, and there isn't so much as a trace of debris from that.

             -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA