Patent ID: 8684499

Claim:
A multi-layered structure suitable for use in manufacturing inkjet printheads comprising: a wafer including a plurality of die sites arranged in a predetermined pattern, each die site including a plurality of actuators and a plurality of flexible membranes, each flexible membrane being comprised essentially of a polysilicon material and the flexible membranes in the plurality of flexible membranes being positioned adjacent the actuators in the plurality of actuators in a one-to-one correspondence, and a plurality of walls extending from a surface of the wafer about each flexible membrane to a position above each flexible membrane so the walls about each flexible membrane and the flexible membranes form a plurality of fluid cavities with each fluid cavity in the plurality of fluid cavities being positioned over each actuator in the plurality of actuators in a one-to-one correspondence; and a polymer layer having a size and a shape of the wafer, the polymer layer including a plurality of aperture arrays arranged in a predetermined pattern corresponding to the predetermined pattern of the plurality of die sites on the wafer, each aperture array having a plurality of apertures, the polymer layer and the wafer being bonded together to enable each actuator and each fluid cavity positioned over each actuator in each plurality of actuators formed in each die site on the wafer to be aligned with an aperture in a corresponding aperture array formed in the polymer layer.