Patent ID: 8936355
Filing Date: 2015-01-20
Classification: B41J

Abstract:
1. A liquid ejecting head at least comprising: a nozzle plate on which nozzle openings for discharging liquid are provided; and a flow path formation substrate on which a pressure generation chamber communicating with the nozzle openings is provided, wherein the nozzle plate is formed with a silicon substrate, and at least the flow path formation substrate and the nozzle plate are bonded to each other after providing a tantalum oxide film formed by atomic layer deposition on the entire surfaces including a bonded surface, wherein the tantalum oxide film includes a first layer having a first portion that continuously covers an inner wall surface of the pressure generation chamber and a second portion that covers a first surface where the flow path formation substrate and the nozzle plate are bonded, and the tantalum oxide film includes a second layer that covers an inner wall of a flow path of the flow path formation substrate and that covers a second surface where the flow path formation substrate and the nozzle plate are bonded.