Patent ID: 6209992
Filing Date: 2001-04-03
Classification: B41J,Y10T

Abstract:
An intermediate product for use in the production of an ink jet recording head, comprising:a substrate member comprising a silicon substrate, an upper silicon oxide film, and a plurality of lower silicon oxide film patterns, said upper silicon oxide film being on an upper surface of said silicon substrate, and said plurality of lower silicon oxide film patterns being on said lower surface of said silicon substrate;a first electrode layer on said upper silicon oxide film;a piezoelectric film on said first electrode layer;a second electrode layer on said piezoelectric film, and in contact with said first electrode layer;a plurality of negative resist patterns, on said second electrode layer, formed by a light-exposed negative resist;a second negative resist over and in contact with said plurality of negative resist patterns formed by said light-exposed negative resist and said second electrode layer; anda plurality of positive resist patterns, each being on a respective one of said plurality of lower silicon oxide film patterns.