Inkjet chamber with aligned nozzle and inlet

摘要

An inkjet drop ejection apparatus having a chamber with a nozzle and an ink inlet for fluid communication with an ink supply; and an actuator with associated drive circuitry for ejecting drops of ink through the nozzle; wherein, the central axis of the nozzle is aligned with the central axis of the ink inlet. Aligning the ink inlet with the nozzle such that the ink can be supplied from the 'back' surface of the wafer removes the need for ink feed channels beside the chambers. This provides more room for the power and print data to be connected to each nozzle along the front surface of the wafer.