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Hosted by: SMTA Capital Chapter
Wednesday, August 19th, 2020 @ 1:00 PM (US Eastern)
Presenter: Norman Armendariz, Ph.D., Raytheon Company
Certain components or package configurations were observed to exhibit more entrainment and/or entrapment of cleaning residues. This paper will discuss the “physics” of liquid entrainment / entrapment and their effects on component materials with experiments performed to determine the minimum amount of component vent area required to adequately rinse components of their cleaning residues resulting in a “Design for Rinse-ability” specifications or guidelines to deploy. In addition, accelerated humidity testing with electrical testing will be discussed, that was performed to determine the degree of degradation / corrosion or electrical reliability of components exposed to controlled or known amounts of cleaning solutions entrained.
About the Presenter
Norman Armendariz is an Engineering Fellow at Raytheon responsible for materials engineering design, materials analysis, process equipment development, micro-analytical metrology development, production support and technology roadmaps associated with the manufacturing of CCA- circuit card assemblies used in missiles, smart munitions, ground based radars, and mobile sensors across multiple US and international sites. Norm has over 25 years of industrial experience, having worked for LTV, Lockheed/NASA, Motorola, Intel, Texas Instruments and American University. He holds an interdisciplinary PhD in Chemical Engineering from New Mexico State University, MS in Materials Science Engineering from the University of Illinois at Urbana-Champaign, and BS in Metallurgical Engineering from Colorado State University, with 9 US patents and 29 peer-reviewed publications.