Liquid ejection head and method of manufacturing the same

A liquid ejection head comprising:

• a substrate having an energy generating element arranged therein;
• an ejection port forming member laid so as to be superposed above the substrate, an ejection port being formed so as to run through the ejection port forming member, a port region of the ejection port forming member including the ejection port having a concave portion formed in the surface thereof opposite to the surface thereof facing the substrate, a convex portion being formed in the surface of the ejection port forming member facing the substrate so as to correspond to the concave portion;
• a flow path forming member arranged between the ejection port forming member and the substrate so as to constitute the lateral wall of a pressure chamber;
• and
• a hollow pattern layer arranged between the flow path forming member and the substrate and having a hollow therein, wherein
• the ejection port and a feed path arranged in the substrate communicate with each other by way of the pressure chamber, and
• the ejection port forming member is partly deformed toward the hollow of the hollow pattern layer.