摘要:
A multi-chip stack structure and a signal transmission method are disclosed in specification and drawing, where the multi-chip stack structure includes first and second chips. The first chip includes a first inductance coil with a first series capacitor, and the second chip includes a second inductance coil with a second series capacitor. The first and second inductance coils are magnetically coupled to each other. The magnetically coupled inductance coils and the capacitors constitute a coupling filter.
摘要:
A fabrication method and structure for a PBCA, and tool for assembly of the structure. The structure includes a circuit board, at least one first solder joint, a plurality of second solder joints, and an electronic device. The circuit board has a solder mask, having a plurality of openings exposing at least one first pad and a plurality of second pads arranged beyond the first pad, on a surface. The first solder joint has a maximum width J1 and electrically connects to the first pad. The second solder joints respectively have a maximum width J2 exceeding J1 and respectively electrically connect to the second pads. The electronic device has a plurality of third pads, arranged substantially corresponding to the openings, respectively electrically connecting to the first pad and second pads.