Multilayer electronic circuit and method of manufacture

Details Multilayer electronic circuit and method of manufacture Multilayer electronic circuit and method of manufacture

H - Electricity

05

K

356/16

H05K 3/46 (2006.01) H01R 4/04 (2006.01) H05K 1/00 (2006.01) H05K 3/32 (2006.01) H05K 3/28 (2006.01)

Patent

CA 1307594

SDP:101 US Multilayer Electronic Circuit And Method Of Manufacture Abstract Of The Disclosure A multilayer electronic circuit comprising at least three electronic circuit layers electrically interconnected by means of at least one interposed connecting layer which is conductive only in the Z-axis. Desirably at least four circuit layers are provided in two circuit layer pairs. Each pair comprises an insulating layer having opposing surfaces and having a circuit pattern on each of the opposing surfaces of the insulating layer. The patterns in each pair are connected by means of conductors passing through the insulating layer. The thus formed pairs are connected to each other the connecting layer interposed between one such pattern from each of said pairs. The connecting layer comprises an electrically insulating resin containing electrically conductive particles. The quantity of the particles is statistically selected so as to be sufficiently dispersed to prevent electrical conduction along the X and Y axes of the connecting layer and sufficiently concentrated and of a size to insure electrical contact through the Z-axis of the connecting layer between conductive portions of the circuit layers which are in contact with the connecting layer and directly opposite each other through the connecting layer. The invention further includes a method for making the multilayer electronic circuit.

579883

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