Patent ID: 6056392
Filing Date: 2000-05-02
Classification: B41J,Y10T

Abstract:
A method for producing a substrate for a recording head, the method comprising the steps of:providing a semiconductor substrate having a functional element comprising a semiconductor area disposed therein, the functional element selectively driving an electrothermal transducer disposed on the substrate;forming an insulating layer on said substrate;removing a part of said insulating layer on said functional element to form an opening in such a manner that said semiconductor area is exposed;forming a heating resistor layer on said insulating layer and said semiconductor area of said functional element, a portion of the heating resistor layer constituting the electrothermal transducer, and a region of the heating resistor layer directly contacting the semiconductor area via said opening, the region thereby preventing a spike formation between an electrode disposed on and said semiconductor area of the functional element; andforming said electrode on the heating resistor layer, the electrode electrically connecting said functional element through the region to said electrothermal transducer.