Zakel, E.E.ZakelKallmayer, C.C.KallmayerNave, J.J.Nave2022-03-082022-03-081997https://publica.fraunhofer.de/handle/publica/303704An easily producible submetallization layer which can be easily wetted with various solder materials comprises a titanium coating.de608621patent1995-95071506