发明申请
US20070252873A1 LIQUID DISCHARGE HEAD SUBSTRATE, LIQUID DISCHARGE HEAD USING THE SUBSTRATE, AND MANUFACTURING METHOD THEREFOR 审中-公开
液体放电头基板,使用基板的液体放电头及其制造方法

LIQUID DISCHARGE HEAD SUBSTRATE, LIQUID DISCHARGE HEAD USING THE SUBSTRATE, AND MANUFACTURING METHOD THEREFOR
摘要:
Provided is a liquid discharge head substrate including: a substrate; a heating resistor layer formed on the substrate; a flow path for a liquid; a wiring layer stacked on the heating resistor layer and having an end portion which forms a step portion on the heating resistor layer; and a protective layer covering the heating resistor layer and the wiring layer including the step portion, and formed between the heating resistor layer and the flow path, in which the protective layer is formed by a Cat-CVD method.
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