Bonded substrate body, method for manufacturing bonded substrate body, liquid discharge head, and method for manufacturing liquid discharge head
AssigneeCanon Kabushiki Kaisha
InventorsYoshiyuki Fukumoto, Atsunori Terasaki, Ryoji Kanri, Atsushi Hiramoto
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Abstract
A method for manufacturing a bonded substrate body in which an end portion of an adhesive is located at a position retreated in a direction to the inside of the bonded substrate body from an end surface of a bonding region of a first substrate and a second substrate includes forming a film on the end portion of the adhesive.
Claims20
A method for manufacturing a bonded substrate body in which a first substrate and a second substrate are bonded through an adhesive and which has a film formed on the bonded substrate body over the first substrate, the second substrate, and a bonding region of the first substrate and the second substrate, the method comprising:
- forming the film to the bonding region in which an end portion of the adhesive is located at a position retreated in a direction to an inside of the bonded substrate body from an end surface of the bonding region.
A liquid discharge head comprising:
- a discharge port discharging liquid;
- and
- an element generating energy utilized for discharging the liquid, wherein
- the liquid discharge head has a bonded substrate body in which a first substrate and a second substrate are bonded through an adhesive, which has a film formed on the bonded substrate body over the first substrate, the second substrate, and a bonding region of the first substrate and the second substrate, and in which an end portion of the adhesive is located at a position retreated in a direction to an inside of the bonded substrate body from a surface on which the film is formed,
- the bonded substrate body has a flow passage of the liquid contacting the first substrate and the second substrate, and
- the film is formed on an inner wall surface of the flow passage over the first substrate, the second substrate, and the bonding region of the first substrate and the second substrate.
Dependencies are inferred from the claim text.