US 12,715,215 B2Granted

Manufacturing method of liquid ejection head and liquid ejection head

AssigneeCanon Kabushiki Kaisha

InventorTomoki Morikawa

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Abstract

In a method for manufacturing a liquid ejection head having an ejection unit including an element substrate provided with ejection ports to eject liquid, and a support member to support the ejection unit with a support surface and provided with a liquid supply path, the method includes arranging and curing. A first adhesive is arranged to surround the supply path and a second adhesive is arranged in each of at least three of four areas obtained by dividing an area where the ejection unit contacts the support surface by a first straight line connecting centers of two sides and a second straight line connecting centers of two sides at a position overlapping an outer periphery of the area where the ejection unit contacts the support surface. The ejection unit is arranged on the support surface, the second adhesive is cured, and the first adhesive is cured in this order.

Claims16

Dependent claims

A method for manufacturing a liquid ejection head that includes:

an ejection unit including an element substrate provided with a plurality of ejection ports configured to eject liquid, and
a support member configured to support the ejection unit with a support surface and provided with a supply path for supplying liquid to the element substrate,
the method comprising:
when viewed from a direction perpendicular to the support surface, arranging a first adhesive, that is a thermosetting-type adhesive, to surround the supply path of the support member and arranging a second adhesive, that is an ultraviolet (UV) curable adhesive, in each of at least three of four areas obtained by dividing an area where the ejection unit is in contact with the support surface in the element substrate by a first straight line connecting respective centers of two sides facing each other in a first direction and a second straight line connecting respective centers of two sides facing each other in a second direction at a position overlapping an outer periphery of the area where the ejection unit is in contact with the support surface;
arranging the ejection unit on the support surface and curing the second adhesive;
and
curing the first adhesive in this order,
wherein the support member supports a plurality of the ejection units,
wherein, in arranging the element substrate and curing the second adhesive, the second adhesive is arranged one by one in sequence for each of the ejection units to be cured, and
wherein, in curing the first adhesive, curing is performed all at once on the plurality of the ejection units.

7 more elements

A liquid ejection head comprising:

an ejection unit including an element substrate provided with a plurality of ejection ports configured to eject liquid;
a support member configured to support the ejection unit with a support surface and provided with a supply path for supplying liquid to the element substrate;
a first resin that is arranged to surround the supply path of the support member;
and
a second resin,
wherein, when viewed from a direction perpendicular to the support surface, the support member and the ejection unit are bonded via the first resin and the second resin,
wherein the second resin is different from the first resin and is arranged in each of at least three of four areas obtained by dividing an area where the ejection unit is in contact with the support member in the element substrate by a first straight line connecting respective centers of two sides facing each other in a first direction and a second straight line connecting respective centers of two sides facing each other in a second direction at a position overlapping an outer periphery of the area where the ejection unit is in contact with the support member,
wherein the ejection unit further includes a flow path member configured to support the element substrate and fluidly communicate the element substrate and the support member,
wherein the support member is made of a resin, and the flow path member is made of alumina,
wherein the support member includes a concave portion, and the ejection unit is arranged in the concave portion, and
wherein the second resin is surrounded by the first resin and a wall surface of the concave portion of the support member.

8 more elements

Dependencies are inferred from the claim text.