Methods of making a printhead

摘要

Among other things, a printhead is formed by actions that include providing a body of silicon material, forming in the body of silicon material at least a portion of a flow path in which fluid is to be pressurized, and forming in the body of silicon material at least a portion of a deaerator partition between a first region and a second region that are connected by a passageway. The deaerator partition is configured to remove gases or bubbles from the fluid. The first region is to be characterized by a first air pressure and the second region is to be characterized by an air pressure different for the first air pressure.