Method of manufacturing liquid discharging head

摘要

In a method of manufacturing a liquid discharging head which includes a flow path forming member which has a discharge port for discharging a liquid and a liquid flow path communicating with the discharge port, and a base body having a liquid supply port which supplies the liquid flow path with the liquid, the method includes (1) forming a mold of the liquid flow path and a foundation member formed of a porous inorganic material over the base body, (2) applying an organic resin over the base body so as to cover the mold and the foundation member to form the flow path forming member, (3) forming the discharge port in the flow path forming member to form the liquid supply port in the base body, and (4) removing the mold to form the liquid flow path.

主权项

1. A method of manufacturing a liquid discharging head which includes a flow path forming member which has a discharge port for discharging a liquid and a liquid flow path communicating with the discharge port, and a base body having a liquid supply port which supplies the liquid flow path with the liquid, the base body having a heating portion for discharging the liquid, the method comprising:
(1) forming a mold of the liquid flow path and a foundation member including a porous inorganic material over the base body, the foundation member being of a single layer and having unevenness, wherein the foundation member does not serve an electrical function for the heating portion; (2) applying an organic resin over the base body so as to cover the mold and the foundation member to form the flow path forming member, the organic resin permeating the unevenness; (3) forming the discharge port in the flow path forming member and forming the liquid supply port in the base body; and (4) removing the mold to form the liquid flow path, wherein the thickness of the foundation member is greater than or equal to 30% and less than or equal to 90% of the thickness of the flow path forming member.