| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a liquid ejection head that is improved in joint reliability.SOLUTION: The method for manufacturing a liquid ejection head includes: a step of pressing a plate-like member 600 to form a through-hole 606 forming multiple individual liquid chambers to which a nozzle from which a droplet is ejected is communicated; and a step of forming a channel plate 2 by immersing the plate-like member 600 into a chemical polishing fluid 635 after the pressing to provide chemical polishing only at a part on a joint face side jointed to a nozzle plate so as to remove burrs 634 generated on the joint face side of a partition wall 606A. |
