发明名称 Mönsterkort med metallpluggar för bortledning av värme
摘要 The present invention relates to a method of providing thermal vias in a printed circuit board for conducting heat from surface mounted components through said board and away therefrom. One or more holes are formed in a board material that includes a metal layer on a top side and a bottom side thereof, to form said printed circuit board. Metal plugs are pressed into the holes and affixed therein so as to seal against an inner wall of said holes in said metal layers, by causing the plugs to expand radially in said holes. A conductor pattern that includes electrical connection sites is then provided on the board material, such as to obtain said printed circuit board. The invention also relates to a printed circuit board that includes vias arranged in accordance with the aforesaid method.
申请公布号 SE516533(C2) 申请公布日期 2002.01.29
申请号 SE19990002496 申请日期 1999.06.30
申请人 TELEFONAKTIEBOLAGET L M ERICSSON 发明人 LARS-ANDERS *OLOFSSON
分类号 H05K1/11;H05K1/02;H05K3/40;(IPC1-7):H05K1/02;H05K7/20 主分类号 H05K1/11
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