Interconnecting substrates for electrical coupling of...

Drying and gas or vapor contact with solids – Process – With nondrying treating of material

Reexamination Certificate

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C034S400000, C034S514000, C257S669000

Reexamination Certificate

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06983551

ABSTRACT:
Interconnecting substrates used in the manufacturing of microelectronic devices and printed circuit assemblies, packaged microelectronic devices having interconnecting substrates, and methods of making and using such interconnecting substrates. In one aspect of the invention, an interconnecting substrate comprises a first external layer having a first external surface, a second external layer having a second external surface, and a conductive core between the first and second external layers. The conductive core can have at least a first conductive stratum between the first and second external layers, and a dielectric layer between the first conductive stratum and one of the first or second external layers. The conductive core can also include a second conductive stratum such that the first conductive stratum is on a first surface of the dielectric layer and the second conductive stratum is on a second surface of the dielectric layer. The interconnecting substrate also has at least one vent through at least one of the first conductive stratum, the second conductive stratum, and/or the dielectric layer. The vent is configured to direct moisture away from the dielectric layer, and thus the vent can be a moisture release element that allows moisture to escape from the dielectric layer during high temperature processing.

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