BS EN 61249-4-15:2009 PDF

What is BS EN 61249-4-15 - Sectional specification set for prepreg unclad materials about?

BS EN 61249-4-15 is an international standard that discusses materials for printed boards and other interconnecting structures, enabling performance and longevity in printed board assemblies. BS EN 61249-4-15 gives requirements for properties of prepreg that are intended to be used as bonding sheets in connection with laminates according to when manufacturing multilayer boards according to IEC 62326-4 . Multilayer boards comprised of these materials are suitable for lead-free assembly processes. This material may also be used to bond other types of laminates. BS EN 61249-4-15 mentions prepreg as defined flammability (vertical burning test). The flammability rating on fully cured prepreg is achieved using brominated fire retardants contained as an integral part of the polymeric structure. After curing the prepreg according to the supplier’s instructions, the glass transition temperature is defined to be 150 °C and 200 °C.