Ejection head for aggressive liquids manufactured by anodic bonding.

摘要

Method for manufacturing an ejection head (10; 110), or ejector, suitable for ejecting a liquid (14; 140) in the form of droplets (16), and internally having a hydraulic circuit (21; 121) for holding and transporting said liquid (14; 140), comprising the following steps: manufacturing a nozzle plate (12, 112) having at least one ejection nozzle (13; 113a, 113b, 113c); fabricating a substrate (11, 111) or actuation support having at least one actuator (15; 115a, 115b, 115c) for activating the ejection of said droplets (16) of liquid through said at least one injector (13; 113a, 113b, 113c); and integrally joining said nozzle plate (12; 112) and said substrate (11; 111) together to form said ejection head (10; 110) and the associated hydraulic circuit (21; 121), comprising the stage binding production by means of known technology Write anódica¿ junction, a junction (25; 125), between said nozzle plate (12; 112) and said substrate (11; 111), configured to be wet by said liquid (14; 140) contained in the hydraulic circuit (25; 125).