Invention Grant
US09174439B2 Liquid ejection head and method for manufacturing liquid ejection head 有权
液体喷射头和液体喷射头的制造方法

Liquid ejection head and method for manufacturing liquid ejection head
Abstract:
A liquid ejection head includes a print element board and an electric wiring board electrically connected to a bump of the print element board using an interconnecting wire. The bump has a first surface and a second surface. The height of the second surface from a surface of a base plate is higher than that of the first surface. The first surface has a protrusion formed therein, and the bump is connected to the interconnecting wire in the second surface.
Information query
Patent Agency Ranking
0/0