| abstract |
An ink jet printhead with an array of nozzles 3 having ink chambers 7 formed at least partially from an amorphous ceramic material, such as silicon nitride, silicon dioxide (glass) or silicon oxynitride. Amorphous ceramics offer high strength and a non-crystalline structure. Crystalline material has crystal defects that can act as stress concentration points that are prone to failure in the cyclical loading environment of the nozzle chambers 7. |