Technical Library | 2019-02-20 16:35:24.0
The High Density Packaging (HDP) User Group has completed a project evaluating the high frequency loss impacts of a variety of imaged core surface treatments (bond enhancement treatments, including chemical bonding and newer low etch alternative oxides) applied just prior to press lamination. Initial high frequency Dk/Df electrical test results did not show a strong correlation with any of the methods utilized within this project to measured surface roughness. The more significant factor affecting the measured loss is the choice of pre-lamination surface treatment. Most of the new chemical treatment systems outperform the older existing systems which depend upon surface roughness techniques to promote adhesion.
SMTnet Express, February 21, 2019, Subscribers: 31,686, Companies: 10,713, Users: 25,759 The Impact of New Generation Chemical Treatment Systems on High Frequency Signal Integrity Credits: Sanmina-SCI The High Density Packaging (HDP) User Group
SMTnet Express, March 24, 2016, Subscribers: 24,113, Companies: 14,735, Users: 39,910 High Frequency DK and DF Test Methods Comparison High Density Packaging User Group (HDP) Project Karl Sauter; Oracle Corporation, Joe Smetana; Alcatel
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