Canon U.S.A., Inc. I.P. Division
Flexible wiring board and liquid discharge head
In an ink jet recording head including a flexible wiring board, the flexible wiring board has a thickness reduction part formed by reducing a film thickness of a part of the base film. The thickness reduction part is configured to alleviate stress applied to inner leads by a base film in the periphery of a device hole, so as to avoid the failure of bonding or the like caused by the inner leads of the flexible wiring board, on which a recording element substrate is installed.
Canon Kabushiki Kaisha
H B H H B H H B H
H05K B41J H05K H05K B41J H05K H05K B41J H05K
additional inventional additional additional inventional inventional additional inventional additional
Toshihiro
Mori