Hi Rich - as part of the IPC-JSTD-001 Conformal Coating Coverage/Thickness "State of the Industry" Assessment task group efforts, we reviewed the available conformal coating measurement/inspection equipment in an effort to make our measurement tasks consistent and repeatable. We were unable to identify any system that could make the conformal coating thickness/coverage measurements we wanted so we resorted to using metallographic cross-section techniques (very slow but accurate). That was three years ago so hopefully a new system exists that can meet your needs. Dave Hillman Rockwell Collins [log in to unmask] On Tue, Mar 20, 2018 at 11:00 AM, Richard Kraszewski < [log in to unmask]> wrote: > Several years back we had run-off for AOI equipment to inspect for > coating defects. Had 2 equipment providers bring equipment on site and > worked with them for several weeks. > The results were rather disappointing in that neither was reliable > enough to replace an human inspector. > Seemed like the defects that the systems could collect needed to be > rather gross and obvious. > Could not reliably identify those smaller scale defects (bubbles between > leads, FOD, thick fillets, etc.) that class 3 customers seemed to also care > about. > > Would appreciate any supporting or contradicting experiences anyone is > willing to share. > > Thanks > > Rich Kraszewski > Senior Staff Process Engineer > Plexus > > > * * * * * * * * CONFIDENTIALITY NOTICE * * * * * * * * > > This e-mail and any attachments are confidential from Plexus Corp. and may > contain information which is privileged, confidential, and/or protected by > non-disclosure agreements. They are intended solely for the use of the > named addressee(s). . Any unauthorized use or disclosure may be > unlawful. If you are not a named addressee, you must not use, disclose, > retain or reproduce all or any part of the information contained in this > e-mail or any attachments If you have received this transmission in error, > please destroy it and notify us immediately by return e-mail or by calling + > 1 888 208 9005. >