Liquid jet recording head having a substrate with minimized electrode overlap

摘要

A substrate for use with a liquid jet recording head has a semiconductor substrate, functional elements formed on said semiconductor substrate, and electro-thermal transducers electrically connected to the functional elements for generating thermal energy to be utilized to discharge liquid. The substrate comprises a common electrode electrically connected to the functional elements in common. The common electrode has a notch at a position facing control electrodes formed between adjacent functional elements. The notch minimizes the overlap of the common electrode and the control electrodes to decrease the probability of an electrical defect.