Method for manufacturing a fluid ejection device and fluid ejection device
AssigneeSTMicroelectronics S.r.l.
InventorsMauro Cattaneo, Roberto Campedelli, Igor Varisco
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AssigneeSTMicroelectronics S.r.l.
InventorsMauro Cattaneo, Roberto Campedelli, Igor Varisco
Estimating the term…
A method for manufacturing a fluid ejection device, comprising the steps of: providing a first semiconductor body having a membrane layer and a piezoelectric actuator which extends over the membrane layer; forming a cavity underneath the membrane layer to form a suspended membrane; providing a second semiconductor body; making, in the second semiconductor body, an inlet through hole configured to form a supply channel of the fluid ejection device; providing a third semiconductor body; forming a recess in the third semiconductor body; forming an outlet channel through the third semiconductor body to form an ejection nozzle of the fluid ejection device; coupling the first semiconductor body with the third semiconductor body and the first semiconductor body with the second semiconductor body in such a way that the piezoelectric actuator is completely housed in the first recess, and the second recess forms an internal chamber of the fluid ejection device.
A method for manufacturing a fluid ejection device, the method comprising:
A fluid ejection device, comprising:
Dependencies are inferred from the claim text.