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Liquid discharge head and method of manufacturing liquid discharge head

A technology of a liquid discharge head and a manufacturing method, which can be applied to semiconductor devices, electrical solid devices, printing, etc., and can solve problems such as damage and exposure of electrical connections.

Inactive Publication Date: 2007-06-20
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, if the height of the sealant is suppressed by the conventional method, there may be a problem of breaking and / or exposing the electrical connection.

Method used

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  • Liquid discharge head and method of manufacturing liquid discharge head
  • Liquid discharge head and method of manufacturing liquid discharge head
  • Liquid discharge head and method of manufacturing liquid discharge head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A first embodiment of the present invention will be described with reference to FIGS. 1 to 21B.

[0062] As shown in FIG. 1 , the main body of a recording device 4000 (hereinafter referred to as recording device main body 4000 for brevity) as a liquid discharge device according to an embodiment of the present invention is equipped with, for example, 6-color cameras corresponding to the quality of recorded photographic images. record header. The recording head 1000BK is a recording head for black ink, the recording head 1000C is a recording head for cyan ink, the recording head 1000M is a recording head for magenta ink, the recording head 1000Y is a recording head for yellow ink, and the recording head 1000LC is a light ink. As a recording head for cyan ink, the recording head 1000LM is a recording head for light magenta ink. It should be noted that, hereinafter, the recording heads 1000BK, 1000C, 1000M, 1000Y, 1000LC, and 1000LM may only be collectively referred to as ...

Embodiment 2

[0105] Next, a second embodiment related to the present invention will be described with reference to FIGS. 22A to 29B.

[0106] 22A is a perspective view showing one recording element substrate 1100 of the recording head 1000 and its enlarged periphery, and FIG. 22B is a cross-sectional view taken along line 22B-22B of FIG. 22A . Here, it should be noted that FIGS. 28A and 28B , and FIGS. 29A and 29B also each consist of a perspective view and a cross-sectional view.

[0107] Incidentally, although a method using wire bonding, a method using inner wire bonding (ILB), a method using anisotropic conductive film (ACF), etc. are used in practice as specific electrical connection methods, it should be noted that this Examples apply to any method.

[0108] The electrode 1103 and the electric wiring substrate 1300 through which the recording element substrate 1300 is connected to each other are connected by a bonding wire 1111 formed by a wire bonding method, thereby establishing a...

Embodiment 3

[0148] A third embodiment of the present invention will be described below with reference to FIGS. 30A to 43B.

[0149] 30A is a perspective view showing the recording element substrate 1100 of the recording head 1000 and its enlarged periphery, and FIG. 30B is a cross-sectional view taken along line 30B-30B of FIG. 30A . Here, it should be noted that FIGS. 31A to 43B are also similarly composed of perspective views and cross-sectional views.

[0150] Incidentally, although a method using wire bonding, a method using inner wire bonding (ILB), a method using anisotropic conductive film (ACF), etc. are practically employed as specific electrical connection methods, it should be noted that this Embodiments are applicable to any method. Incidentally, when the wire bonding method is performed, the extended portion of the protective film 2100 of the electrical wiring substrate 1300 is folded back and temporarily fixed at a position away from the electrical connection portion so tha...

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PUM

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Abstract

A liquid discharge head comprises: a discharge element substrate including a discharge port for discharging liquid and a discharge energy generating element; an electrical wiring substrate for inputting an electrical signal to the discharge energy generating element; a supporting mechanism for supporting the discharge element substrate and the electrical wiring substrate; an electrical connection portion for electrically connecting the discharge element substrate with the electrical wiring substrate; a sealant coated on the electrical connection portion; and a film-like member coating the electrical connection portion along the shape of the electrical connection portion through the sealant. Thus, the liquid discharge head resultingly includes the electrical connection portion on which the height of the sealant is suppressed and lowered sufficiently so as to prevent a problem that the electrical connection portion is damaged and / or exposed due to its height.

Description

technical field [0001] The present invention relates to a liquid discharge head that discharges liquid such as ink, and a method for manufacturing the liquid discharge head. Background technique [0002] As an energy generating element (liquid discharge element) that generates energy for discharging liquid from a liquid discharge port provided on the liquid discharge head, an element using an electromechanical converter such as a piezoelectric element and a heating resistor for heating the liquid are used. Components of the electrothermal converter. [0003] In addition, a discharge energy generating element, a circuit for driving the discharge energy generating element, a temperature sensor, and the like are formed on the liquid discharge substrate. In addition, the liquid discharge substrate exchanges digital signals, driving power, analog signals, etc., with the outside of the liquid discharge head in order to drive the liquid discharge element at appropriate timing and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/14B41J2/16
CPCH01L2224/8592B41J2/1603B41J2/1623H01L2224/48091B41J2/14072B41J2/1637B41J2202/20H01L2224/48465H01L2924/00014H01L2924/00B41J2/01B41J2/015
Inventor 安田淳司高野胜彦末冈学竹中成夫西川胜正宇田川健太广泽稔明
Owner CANON KK
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