A substrate for use in an ink jet recording head is provided with a plurality of heat generating members for generating thermal energy to be utilized for discharging ink. The heat generating members are structured by a thin film formed by material represented by Tax Siy Rz, which has a specific resistance...http://www.google.com.au/patents/US6527813?utm_source=gb-gplus-sharePatent US6527813 - Ink jet head substrate, an ink jet head, an ink jet apparatus, and a method for manufacturing an ink jet recording head