Foresite Inc. (formerly CSL) is a process consulting house and analytical laboratory dedicated to solving reliability issues involving electronic assemblies.
With over 12 years experience in the industry, Foresite specializes in failure analysis, process & material qualifications, including our new lead free process qualification package, and cleanliness investigations. Results are used for corrective actions and process optimization to achieve the highest levels of quality. Foresite also provides cleaning services, proof of cleaning and the C3 Localized Ionic Cleanliness Tester for ongoing process monitoring and control.
Foresite Inc. Postings
Sep 08, 2016 | Terry Munson, Paco Solis, Nick Munson, Steve Ring, Evan Briscoe.
In this investigation a test matrix was completed utilizing 900 electrodes (small circuit board with parallel copper traces on FR-4 with LPI soldermask at 6, 10 and 50 mil spacing): 12 ionic contaminants were applied in five concentrations to three different spaced electrodes with five replicas each (three different bare copper trace spacing / five replications of each with five levels of ionic concentration). The investigation was to assess the electrical response under controlled heat and humidity conditions of the known applied contamination to electrodes, using the IPC SIR (surface insulation resistance) J-STD 001 limits and determine at what level of contamination and spacing the ionic / organic residue has a failing effect on SIR....
Jan 13, 2011 | Terry Munson
The tin whisker failures investigated in this paper were found on functional RoHS-compliant hardware. The samples were not conformal coated. This paper will document the conditions associated with the whisker formation under the following conditions; tin ...