Patent ID: 8427652
Filing Date: 2013-04-23
Classification: G01B

Abstract:
1. A method for measuring changes in geometry occurring to elements formed of a material layer disposed on a first substrate when heat and pressure are applied to said material layer and said first substrate during a lamination process, comprising: forming from said material layer at least one passive circuit component and at least one sample pad disposed on said substrate; forming a multi-layer structure by placing at least a second substrate panel on top of said first substrate so that said passive circuit component is disposed between said first substrate and said second substrate; directly measuring with an interferometer dimensional changes in at least a length or a width occurring to said sample pad while applying heat and pressure to said multi-layer structure as part of a lamination process; and determining at least one of a final geometric shape and an electrical value of said passive circuit component that was embedded between said first and second substrates during said lamination process, based on said dimensional changes which were previously measured for said sample pad.