Patent ID: 6238584
Filing Date: 2001-05-29
Classification: B41J,Y10T

Abstract:
A method for forming an ink jet nozzle plate, comprising the steps of:a) providing a structure having a top substrate layer, a bottom substrate layer, and a buried layer disposed between the top substrate layer and the bottom substrate layer;b) selectively etching the top substrate layer to form a plurality of spaced ink cavities in the top substrate layer exposing portions of the buried layer;c) attaching a base to the top substrate layer and removing by etching the bottom substrate layer; andd) providing a mask having a plurality of openings over the buried layer and etching through such mask openings through the buried layer to the ink cavities to provide at least one bore region corresponding to each ink cavity to provide ink ejection access to such ink cavities so that the buried layer has portions which overhang the ink cavity.