Raytheon Company

Aaron M Ramirez

Andrew Peter Clarke

Jonathan Getty

Scott S Miller

Kenneth Allen Gerber

Chad W Fulk

An electrical device includes a substrate, an insulating layer supported by the substrate, and an electrically conductive vertical interconnect disposed in a via hole of the insulating layer. The insulating layer may be configured to provide a coefficient of thermal expansion (CTE) that is equal to or greater than a CTE of the vertical interconnect to thereby impart axial compressive forces at opposite ends of the interconnect. The vertical interconnect may be a hybrid interconnect structure including a low CTE conductor post having a pocket that contains a high CTE conductor contact. At low operating temperatures, the high CTE conductor contact is under tension due to the higher CTE, and thus the high CTE conductor contact relieves strain in the device by void expansion and elongation.

Hybrid pocket post and tailored via dielectric for 3D-integrated electrical device

A method for bonding a first semiconductor body having a plurality of electromagnetic radiation detectors to a second semiconductor body having read out integrated circuits for the detectors. The method includes: aligning electrical contacts for the plurality of electromagnetic radiation detectors with electrical contacts of the read out integrated circuits; tacking the aligned electrical contacts for the plurality of electromagnetic radiation detectors with electrical contacts of the read out integrated circuits to form an intermediate stage structure; packaging the intermediate stage structure into a vacuum sealed electrostatic shielding container having flexible walls; inserting the package with the intermediate stage structure therein into an isostatic pressure chamber; and applying the isostatic pressure to the intermediate stage structure through walls of the container. The container includes a stand-off to space walls of the container from edges of the first semiconductor body.

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Goleta, CA, United States of America

Aaron M Ramirez