21 Mar
2018
21 Mar
'18
9:05 a.m.
Hello. I just grep my folder with essential notes I collected over the years and stumbled across the Overlay problem [1] and [2]. Do we need dedicated structures on the Test-Wafer for that? Just for curiosity how good the machines are and our handling is?? Regards, Hagen [1] https://de.wikipedia.org/wiki/Overlay_(Halbleitertechnik) [2] https://en.wikipedia.org/wiki/Overlay_control Btw, the German Wikipedia Article is better than the English one in this case.