Northrop Grumman Systems Corporation

Robert H Fisher

Cynthia W Berry

Alex E Bailey

Tapan K Gupta

Rena Y Jacobson

Wayne A Smythe

Shane H Dennison

Marissa A O'Donnell

Daniel Brosey

Steve M Smalley

William A Thomas

Glenn A Cooke

The print head and screen assembly of a Semi-Automatic Screen Printer is raised above its normal printing height and selective attachment of several different fixtures on the nest plate for holding the substrate in a desired position during a screen printing operation for printing gold on LTCC substrates.

Ceramic screen printing apparatus

An LTCC module includes a base on one or more surfaces for receiving one or more external components to be attached to the module. A base is formed of a plurality of layers of metallization in a predetermined pattern. The layers include an adhesion layer on the LTCC module surface, with one or more intermediate layers, followed by a top layer. The module is fired with each application of the layers at a reduced temperature lower than the normal cofiring temperature of the LTCC module, but of sufficient value to partially sinter the layers. After the last applied top layer, the module is fired once at an elevated temperature to fully sinter the layers.

Method of forming one or more base structures on an LTCC cofired module

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Westminster, MD, United States of America

Robert H Fisher