Harness, Dickey & Pierce, P.L.C.
Liquid ejection head, liquid ejection apparatus, and electronic device
In a plan view from a perpendicular direction to a surface of a wiring substrate on which a wiring is provided, a buried wiring, a connection wiring, and a terminal portion of an external wiring are formed at an overlapping position, in which a recessed portion is provided at a position corresponding to the buried wiring on a surface of the connection wiring on an opposite side to the wiring substrate, and in which, in a direction intersecting an extension direction of the wiring on the surface of the wiring substrate on which the wiring is provided, a width of the connection wiring is larger than a width of the buried wiring, a width of the terminal portion of the external wiring is larger than a width of the recessed portion, and the terminal portion is provided across the recessed portion of the connection wiring.
Seiko Epson Corporation
B B B B B
B41J B41J B41J B41J B41J
additional inventional additional additional additional
Eiju Shingo Shunsuke Motoki Daisuke
Hirai Tomimatsu Watanabe Takabe Yamada