公开(公告)号：US3888639A

公开(公告)日：1975-06-10

申请号：US42991774

申请日：1974-01-02

Applicant: TELEDYNE ELECTRO MECHANISMS

Inventor： HASTINGS MYRON L ,  ROBERTS JOSEPH P

IPC: H05K3/28 ,  H05K3/30 ,  H05K3/34 ,  H05K3/36 ,  H05K3/40 ,  H05K3/46

CPC classification number: H05K3/363 ,  H05K3/28 ,  H05K3/305 ,  H05K3/3447 ,  H05K3/3468 ,  H05K3/4038 ,  H05K3/4046 ,  H05K3/4611 ,  H05K2201/0305 ,  H05K2201/041 ,  H05K2201/096 ,  H05K2201/09845 ,  H05K2201/10477 ,  H05K2201/10939 ,  H05K2201/10977 ,  Y10T29/49126

Abstract: A method for electrically and mechanically connecting two printed circuit boards involves creating a first hole in the overcoat of the first circuit board at all points where electrical connection to the second circuit is desired. Then a second, smaller hole is made within the first hole, completely through the first circuit board. Next, the two circuits are juxtaposed, with the first above the second, and fastened together by an adhesive. A third hole, smaller than the second and located nearly concentric with the first and second holes, is then made through the second circuit board. Finally, the electrical and additional mechanical connection is made by inverting the combination and passing it over a solder wave of a wave soldering machine. During this process the third hole acts as a vent.