Gregory's ServerHere is an IC mystery
When did TI make plastic TTL with the logo
embossed into the divot?
It seems VERY unlikely they were making epoxy bodied ICs in 1965
 3 comments
@bitsavers Digging around, it seems TI did have the long divot style about 10 years later and even >20 years later (slightly shallower by 1988), but no sign of the logo inside it.  @bitsavers I have no relevant knowledge knowledge but I wonder if this could be from a time when prices where high and there was enough margin to pay the higher manufacturing cost. The 3D logo would flaunt the technical advances and make them harder to clone. |
@bitsavers They look too narrow, too. I'm getting strong "soviet bloc" package vibes from these. CEMI and TESLA had those long divots. I reckon these are re-marked parts. '65 seems too early.