The Product layer buildup dialog box is used to choose from among the pre-defined layer builds, or to specify a custom build.
Click on a build number in the matrix to display an overview of the build. Right-click on the overview to view a detailed stackup drawing as a PDF file or to copy a simple diagram to the clipboard as text.
There are three types of builds:
- Free builds: These are builds where the total thickness and copper thicknesses are specified, but the distance between layers will be determined by the manufacturer. These builds are the least expensive.
- Constrained builds: These are builds where the thicknesses of all layers are specified.
- Custom builds: These are builds where each layer and material may be specified individually. A custom build may be specified as a free custom build or a constrained custom build. Note: For 0-2 layers, a custom build is always specified as a free build. Custom buildups are subject to approval by the manufacturer, who may suggest changes to improve manufacturability.
