| 摘要 |
A pulse transformer package includes a substrate, a passive component, and a cap member. The substrate includes a surface layer, a base layer, a middle wiring layer between the surface and base layers, a set of bonding pads formed on the surface layer, and a set of connecting pads formed on the base layer. The bonding pads and the connecting pads are connected electrically to the wiring layer. The passive component is connected electrically to the bonding pads on the substrate. The cap member is connected to the surface layer of the substrate, and cooperates with the surface layer to form a sealed space for the passive component.
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