公开(公告)号：EP1704758B8

公开(公告)日：2012-05-16

申请号：EP04803475.5

申请日：2004-12-03

申请人： Würth Elektronik Rot am See GmbH & Co. KG ,  Lüberg Elektronik GmbH & Co. Rothfischer KG ,  Reifenhäuser GmbH & Co. Maschinenfabrik ,  Lehmann & Voss & Co. KG ,  Langenfelder, Dieter ,  Altstädt, Volker

发明人： LANGENFELDER, Dieter ,  ALTSTAEDT, Volker ,  GLOEDE, Stefan ,  BEHRENDT, Matthias ,  WAHLEN, Lars ,  KOSTELNIK, Jan ,  PARK, Heyje

IPC分类号： H05K1/03 ,  H05K3/46 ,  H05K3/02 ,  B29C44/32

CPC分类号： H05K3/022 ,  B29C44/322 ,  B29C47/0014 ,  B29C47/0019 ,  B29C47/065 ,  B29C47/10 ,  B29C47/145 ,  B29C47/366 ,  B29C47/8845 ,  B29C47/90 ,  B29C2793/009 ,  B29K2071/00 ,  B29K2105/04 ,  B29K2105/06 ,  B29K2105/256 ,  B29K2105/26 ,  H05K1/036 ,  H05K2201/0116 ,  H05K2201/0129

摘要： Thermoplastic raw material with high temperature resistance is fused in a cascade of two extruders, then treated with gas and/or chemical propellants, homogenised and cooled. Outer layers are optionally applied to the foamed core layer, before the melt exits the nozzle gap. The melt strip foams up and is cooled in a burnishing unit. Copper films can simultaneously be introduced by means of the rollers of the burnishing unit, to give a composite of melt strip and copper film which are then drawn together.