Patent ID: 7098530
Filing Date: 2006-08-29
Classification: H01L

Abstract:
1. An electronic device comprising: a substrate of a semiconductor material having a first and a second opposite side, which is provided with a first through-hole extending from the first to the second side, the substrate being provided with a first electrical element on its first side; an active device having a coupling surface provided with connection pads, which device is present in the first through-hole of the substrate with its coupling surface on the first side of the substrate, a thin film interconnect structure being provided on the first side of the substrate extending over the first through-hole and interconnecting the active device with the electrical element, the interconnect structure comprising connection faces corresponding to the connection pads, a heat sink is present on the second side of the substrate extending over the first through-hole and at least part of the substrate, and bond pads for connection to an external system, characterized in that the active device is made to process signals of a first frequency, and the first electrical element is part of a transformer for transforming the signals of the first frequency to a second, lower frequency and/or vice versa, so that in operation the bond pads transmit signals at the second frequency and that the heat sink operates as a ground plane.