Chatter marks are the most common sanding defect and problem and can come from different sources.
The porcelain is of reasonable quality and quite thinly potted, while the base often exhibits
chatter marks - lines radiating out from the centre to the footring caused by the potter's cutting tool slightly juddering over the surface.
Chatter marks are left by the machine that shaped the molding.
In addition, the VisionPad 5000 achieves a 50 percent reduction in CMP-induced scratch and
chatter marks over current materials.
Believe it or not, most are caused by existing
chatter marks or rough edges.
This reduces defects and improves die yields by minimizing scratches and
chatter marks across the wafer resulting in best-of-class defectivity performance.
