PTS Coupons for TH Process Control
The parametric test system (PTS) was created by Hewlett-Packard’s Printed Circuit Division in 1987 based on early H-P coupons used in production since 1972. Those early coupons focused on inner-layer shifting, by using the copper on I/Ls shorting to a PTH, moiré patterns, and hole quality cross-sections. Additional influence came from a parametric printed circuit board used as a training and process … Read More
Tags: PTS, Plate Through Hole, Soldermask, Conductors, Coupons, PADS, Parametric Test System, Etch Factors, Gerber
This morning I was sent the following comment (name changed to protect the innocent):
I don’t need Mentor to fix anything because I don’t do “crappy” work. (Actually a different term was used, but not appropriate for this forum). I don’t do DRC or if I do I ignore the errors and warnings. I just export the gerber files and examine them. DRC is for those who don’t want to learn how to layout a PCB …