Title :
Volume resistance behavior of laminated circuit boards under high humidity conditions
Author :
G. R. Sprengling;S. J. Ponemone
Author_Institution :
Polymers & Plastics Department, Westinghouse Research Laboratories, Pittsburgh, Pennsylvania, USA
Abstract :
Under high humidity service or test conditions typified by MIL-E-5272. commercial epoxy-glass circuit laminates degrade in insulation resistance. Leakage currents often increase to values unacceptable for high impedance circuits. Insulation resistance is comprised of two components in parallel: Surface and volume resistance. Surface resistance is usually controlled by cleaning and the use of conformal coatings. Volume resistance has been little studied and is here investigated in some detail.
Keywords :
"Resistance","Glass","Humidity","Coatings","Laminates","Electrodes","Surface impedance"
Conference_Titel :
Electrical Insulation Conference, 1971 EIC 10th
Print_ISBN :
978-1-5090-3116-0
DOI :
10.1109/EIC.1971.7460801
