LIQUID JET HEAD AND METHOD FOR MANUFACTURING LIQUID JET HEAD
First Claim
1. A liquid discharge head comprising:
- a recording element substrate including an energy generating element that generates energy used to discharge liquid from a discharge port;
a wiring substrate including wiring electrically connected to the energy generating element;
a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other; and
a sealing member provided to fill a gap between the side end portion of the recording element substrate and the side end portion of the wiring substrate,wherein the side end portion of the wiring substrate has a step portion, a distance between a second portion of the step portion on the side opposite to the support substrate and the side end portion of the recording element substrate is larger than a distance between a first portion of the step portion on the side of the support substrate and the side end portion of the recording element substrate, and a part of the wiring is formed in the first portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A liquid discharge head includes a recording element substrate including an energy generating element, a wiring substrate including wiring, a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other, and a sealing member, wherein the side end portion of the wiring substrate has a step portion, a distance between a second portion of the step portion on the side opposite to the support substrate and the side end portion of the recording element substrate is larger than a distance between a first portion of the step portion on the side of the support substrate and the side end portion of the recording element substrate, and a part of the wiring is formed in the first portion.
5 Citations
7 Claims
-
1. A liquid discharge head comprising:
-
a recording element substrate including an energy generating element that generates energy used to discharge liquid from a discharge port; a wiring substrate including wiring electrically connected to the energy generating element; a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other; and a sealing member provided to fill a gap between the side end portion of the recording element substrate and the side end portion of the wiring substrate, wherein the side end portion of the wiring substrate has a step portion, a distance between a second portion of the step portion on the side opposite to the support substrate and the side end portion of the recording element substrate is larger than a distance between a first portion of the step portion on the side of the support substrate and the side end portion of the recording element substrate, and a part of the wiring is formed in the first portion. - View Dependent Claims (2)
-
-
3. A liquid discharge head comprising:
-
a recording element substrate including an energy generating element that generates energy used to discharge liquid from a discharge port; a wiring substrate including wiring electrically connected to the energy generating element; a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other; a sheet member provided on the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the sheet member provided on the wiring substrate are adjacent to each other; and a sealing member provided to fill a gap between the side end portion of the recording element substrate and the side end portions of the wiring substrate and the sheet member, wherein a distance between the side end portion of the sheet member and the side end portion of the recording element substrate is larger than a distance between the side end portion of the wiring substrate and the side end portion of the recording element substrate.
-
-
4. A method for manufacturing a liquid discharge head, the method comprising:
-
preparing a liquid discharge head including a recording element substrate including an energy generating element that generates energy used to discharge liquid from a discharge port, a wiring substrate including wiring electrically connected to the energy generating element, and a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other, wherein the side end portion of the wiring substrate has a step portion, a distance between a second portion of the step portion on the side opposite to the support substrate and the side end portion of the recording element substrate is larger than a distance between a first portion of the step portion on the side of the support substrate and the side end portion of the recording element substrate, and a part of the wiring is formed in the first portion; and filling a gap between the first portion of the step portion and the side end portion of the recording element substrate with a sealing member by disposing an injection port of a needle for injecting the sealing member between the second portion of the step portion and the side end portion of the recording element substrate and injecting the sealing member from the injection port. - View Dependent Claims (5)
-
-
6. A method for manufacturing a liquid discharge head, the method comprising:
-
preparing a liquid discharge head including a recording element substrate including an energy generating element that generates energy used to discharge liquid from a discharge port, a wiring substrate including wiring electrically connected to the energy generating element, a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other, and a sheet member provided on the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the sheet member provided on the wiring substrate are adjacent to each other, wherein a distance between the side end portion of the sheet member and the side end portion of the recording element substrate is larger than a distance between the side end portion of the wiring substrate and the side end portion of the recording element substrate, and filling a gap between the side end portion of the wiring substrate and the side end portion of the recording element substrate with a sealing member by disposing an injection port of a needle for injecting the sealing member between the side end portion of the sheet member and the side end portion of the recording element substrate and injecting the sealing member from the injection port. - View Dependent Claims (7)
-
Specification