Choose the separation route before panel layout
Scribing leaves material for a later break operation; full cutting produces a different edge and handling sequence. Dicing is another possible route. Each approach constrains kerf, corner geometry, break lines and the distance from active features to an edge.
Specify acceptable edge damage
Outline tolerance alone does not describe chipping, cracks or heat-affected surfaces. Define the inspection method, critical zones and acceptance criteria with the supplier. A feature can meet its dimensional tolerance and still be unsuitable for electrical isolation or fatigue life.
Include assembly and handling
Panel rails and temporary support may be needed during printing, attachment or testing. Review when the parts are separated and how loads are applied. Avoid assuming the same separation method used for FR-4 can be transferred to a brittle ceramic panel.
Engineering example
Move a high-voltage copper edge away from a separation line if the agreed chipping allowance would reduce the required insulating distance. Account for tolerances on both copper and ceramic.
Before you release the design
- Confirm cutting or scribing method.
- Agree on minimum internal radius and hole geometry.
- Define edge-quality acceptance in functional areas.
Sources and further technical reading
Manufacturer references support the material and process context. Worked examples and checklists are engineering guidance; they are not test results or supplier guarantees.