Title:
LIQUID EJECTION HEAD AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2023055114
Kind Code:
A
Abstract:
To provide a liquid ejection head ensuring the reliability of an electric connection portion between a recording element substrate and an electrical wiring substrate.SOLUTION: A liquid ejection head 1 includes: a recording element substrate 2 having an ejection port 9, an energy generating element 8 that generates energy for ejection, and an electrode terminal 7 electrically connected to the energy generating element; and an electrical wiring substrate 3 electrically connected to the electrode terminal 7 by wire bonding or the like. The electrode terminal 7 is disposed on a connection surface 25, which is one surface of the recording element substrate 2, and, at an end of the electrical wiring substrate 3, is provided with a connection region that is electrically connected to the electrode terminal 7. The end of the electrical wiring substrate 3 is disposed apart from the electrode terminal 7 on a surface of the recording element substrate 2 which surface is on a side of the connection surface 25.SELECTED DRAWING: Figure 2
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Inventors:
TAMENAGA ZENTARO
Application Number:
JP2021164257A
Publication Date:
April 17, 2023
Filing Date:
October 05, 2021
Export Citation:
Assignee:
CANON KK
International Classes:
B41J2/01; B41J2/14
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata