Anent chp packaging...
In my hellbox, I've got a couple of Fujitsu MB8869 chips--I think
they're CRT controllers, (but that's just a guess; I've never seen a
datasheet). They date from around 1980 or earlier.
They're 64-pin PGA packages--ceramic with a metal "hood". Pins are
on 0.100" centers.
Not mounted in ZIF sockets, but rather just a conventional friction-
fit socket.
--Chuck