Liquid ejection head and manufacturing method of liquid ejection head

A method for manufacturing a liquid ejection head including:

• an element substrate having an energy-generating element configured to generate an energy for ejecting a liquid from an ejection orifice;
• a support member for supporting the element substrate, the support member including a liquid chamber formed therein to supply the liquid to the ejection orifice;
• and
• a damper portion for absorbing vibration of the liquid inside the liquid chamber, the damper portion being flexible,
• the method comprising:
• preparing the support member having a through-hole for communicating with the liquid chamber at a position that is located above the liquid chamber in a vertical direction when the liquid ejection head is in a use orientation;
• preparing the damper portion having a taper portion that tapers downward in the vertical direction;
• positioning the damper portion on an upper side of the support member in the vertical direction in such a manner that the taper portion closes the through-hole;
• and
• attaching the damper portion and the support member to each other by a fixing member.