Altium Designer Documentation
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Dialog Reference
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Stack is not symmetric
Created: January 02, 2019 | Updated: January 03, 2019
| Applies to versions: 19.0, 19.1, 20.0, 20.1, 20.2 and 21
Now reading version 20.1. For the latest, read: Stack is not symmetric for version 22
The Stack is not symmetric dialog
Summary
The Stack is not symmetric dialog allows you to achieve symmetry in the layer stack.
Access
The dialog is accessed by enabling the Stack Symmetry option in the Properties panel in Layer Stack Manager mode.
Options/Controls
- Layer stack symmetry mismatches - the grid displays all detected conflicts in layer stack symmetry.
- Mirror top half down - the settings of each of the layers above the central dielectric layer are copied down to the symmetrical partner-layer.
- Mirror bottom half up - the settings of each of the layers below the central dielectric layer are copied up to the symmetrical partner-layer.
- Mirror whole stack down - an additional dielectric layer is inserted after the last copper layer, then all of the signal and dielectric layers are replicated and mirrored below this new dielectric layer.
- Mirror whole stack up - an additional dielectric layer is inserted before the first copper layer, then all of the signal and dielectric layers are replicated and mirrored above this new dielectric layer.