The Electronics Desktop Material Editor supports the viewing, modification, and saving of material information for substrate elements and stackup primitives. After modifying a material, the information can then be saved, used to define a design, or exported.
A material is a set of information that defines the physical properties of a substance — such as that used as a substrate, metallization, or solder mask layer — for its inclusion in a stackup, the physical foundation of a manufacturable Planar EM model. Material definitions are stored in library files with an extension of .amat. You can access material definitions using the Edit Material window, also referred to as the Material Editor.
To start the Material Editor, select Tools > Edit Libraries > Materials. When the Edit Libraries window opens, use its controls to open the Material Editor.