发明名称 Method for solder attachment of components on printed circuit boards
摘要 The invention relates to a method for fastening components on printed circuit boards (2) during the production of printed circuit board assemblies having a mixed-fitment of components, the printed circuit board (2) initially being passed over a solder wave, as a result of which those components which are provided with connecting wires are soldered. Subsequently, the temperature produced on the component side of the printed circuit board by the solder wave is raised by additional heat-producing means (3, 5) fitted above the printed circuit board (2), to the extent necessary for solder which is applied for fastening of surface-mounted components melts again. In consequence, repeated thermal stressing of the components is avoided and it is possible to fit components of different embodiments in one operation. <IMAGE>
申请公布号 DE3738168(A1) 申请公布日期 1989.05.24
申请号 DE19873738168 申请日期 1987.11.10
申请人 SIEMENS AG 发明人 MUELLER,HELMUT,DIPL.-ING.;BADTKE,DETLEF,DIPL.-ING.
分类号 B23K1/08;H05K3/34 主分类号 B23K1/08
代理机构 代理人
主权项
地址