Liquid ejection head and manufacturing method of liquid ejection head
AssigneeCanon Kabushiki Kaisha
InventorTakashi Sugawara
Life of this patent
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Abstract
A liquid ejection head has a first substrate, a second substrate, and a damper member suppressing vibrations of a liquid. The damper member bonds the first substrate and the second substrate to each other by an adhesive agent. The damper member has a first area sandwiched between the first substrate and the second substrate and a second area not sandwiched between the first substrate and the second substrate. In the second area, the adhesive agent adheres to the side surface of the damper member so as to fix the damper member firmly.
Claims18
A liquid ejection head comprising:
- a first substrate;
- a second substrate;
- and
- a damper member suppressing vibrations of a liquid, wherein
- the damper member is bonded to the first substrate and the second substrate by an adhesive agent,
- the damper member has a first area sandwiched between the first substrate and the second substrate and a second area not sandwiched between the first substrate and the second substrate,
- in the second area, the adhesive agent adheres to a side surface of the damper member,
- in the first substrate, a first flow path is formed, the first flow path being a liquid supply flow path,
- in the second substrate, a second flow path capable of storing a liquid supplied from the first flow path, a plurality of pressure chambers communicating with the second flow path, and a plurality of ejection ports arranged in each of the pressure chambers and capable of ejecting a liquid stored in the pressure chambers are formed, and
- in the first area, the damper member is bonded to the first substrate via a first adhesive agent and bonded to the second substrate via a second adhesive agent different from the first adhesive agent.
A liquid ejection head comprising:
- a first substrate;
- a second substrate;
- and
- a damper member suppressing vibrations of a liquid, wherein
- the damper member is bonded to the first substrate and the second substrate by an adhesive agent,
- the damper member has a first area sandwiched between the first substrate and the second substrate and a second area not sandwiched between the first substrate and the second substrate,
- in the second area, the adhesive agent adheres to a side surface of the damper member,
- the side surface is an inner circumferential surface of a through-hole formed in a bonding surface with the first substrate in the damper member, and
- the adhesive agent flows into the inside of the through-hole.
A manufacturing method of a liquid ejection head, the manufacturing method comprising:
- forming a through-hole and a concave portion in a first substrate;
- applying an adhesive agent to the concave portion and an area in which the through-hole is not formed in a surface in which the concave portion of the first substrate is formed;
- placing a sheet-shaped damper member on the adhesive agent;
- forming an opening in the damper member;
- causing the adhesive agent to flow on an inner circumferential surface of the opening;
- hardening the adhesive agent;
- and
- bonding a second substrate to an inner circumferential portion on a surface on the opposite side of a surface to which the first substrate is bonded in the damper member.
Dependencies are inferred from the claim text.