Patent ID: 7589390
Filing Date: 2009-09-15
Classification: H01L,H05K

Abstract:
1. A shielded through-via, comprising: a layer having first and second opposing surfaces and an insulating region there through, a conductive through-via having first and second ends in the insulating region configured to receive a signal at its first end and carry the signal from the first surface to the opposing second surface at its second end, a shield electrode in the insulating region spaced apart from the through-via, said shield electrode having an unconnected first end and a second end, a coupling element having an input connected to the second end of the through-via and an output connected to the second end of the shield electrode, said coupling element coupling at least a time-varying portion of the signal carried on the through-via to the shield electrode, and a conductive line connected to one of the second end of the shield electrode and the output of the coupling element to carry the signal.