76 PCB007 MAGAZINE I SEPTEMBER 2024
My August column introduced sensors that
are useful in measuring critical components of
the various wet processes in printed circuit fab-
Wet Process Management
and Control
rication. Now, I will close the loop and discuss
building automatic controllers. Table 1 shows
the three phases of process control. Hopefully,
Happy's Tech Talk #33
by Happy Holden, I-CONNECT007
Table 1: Stages of developing wet process control
