I am looking for information for finite element analysis of a flex tape. I need Youngs modulus and Poisson's ratio for 1 oz annealed-wrought copper foil. Thanks, Suzanne Nachbor The Modulus of RA copper foil is 17,000,000 psi, and the Poisson's ratio is 0.33. Andy Magee - V.P. of Operations and Technology Mound Flexible Circuits Corp. [log in to unmask]