However, 4- or 8-head solutions are not satisfying customer requirements for speed and throughput.
The architecture of the flying probe systems makes it possible to use a higher number of probes per test area resulting in faster test time and lower cost of test.
To meet these requirements atg Luther & Maelzer launched the 16-, 20- and 24-head machines with test areas of up to 40in. width.
Depending on the number of test heads, the resulting maximum test area sizes are 40in.x40in., 40in.x50in. or 40in.x60in.