摘要:
A method for manufacturing an ink jet recording head by combining each of the processes to fabricate a heater board comprises (I) the first step of patterning a resistive layer on a substrate, (II) the second step of laminating a first protection layer and patterning the protection layer to form a groove by removing an area for wiring electrode layers to be formed later, (III) the third step of laminating a layer formed by material for use of the wiring electrode layers, (IV) the forth step of continuously giving heat treatment to the surface of the substrate, while the surface is not allowed to be exposed to the air outside, to enable the layer formed by the material of the wiring electrode layers to flow into only the groove on the first protection layer provided in the first step, and making the surface flat, as a result of which, a pair of electrode layers are formed to enable the resistive layer between them to be constituted as the heat generating unit and (V) the fifth step of forming a second protection layer. With this method of manufacture, it is possible to provide an ink jet recording head whose power dissipation is small, while having a good durability and capability of recording in high quality.
摘要:
A substrate, for use in a liquid discharge head for discharging liquid by applying thermal energy thereto, is provided with a heat generating member for applying the thermal energy to the liquid and a movable member so positioned as to be opposed to the heat generating member, to be fixed at the upstream side in the flowing direction of the liquid and to have a free end at the downstream end. Two wiring layers for applying a voltage to the heat generating member are provided in a superposed manner with an interlayer insulation layer therebetween and are mutually connected electrically via a through-hole. The through-hole is provided in a position different from the boundary between a fixing portion and a movable portion of the movable member.
摘要:
The present invention provides an ink-jet head having a plurality of heaters for one ejection outlet, wherein the heaters and the outlet are disposed so as to satisfy a specific relationship, and thereby errors in the path of ejected ink droplets concerning the driving positions of the heaters can be restricted.
摘要:
A method for manufacturing a liquid discharge head including a substrate on which supply ports for supplying a liquid are provided, includes forming a first supply port among the supply ports by performing crystal anisotropic etching on the substrate from one surface of the substrate, and forming a plurality of second supply ports among the supply ports by performing dry etching on the substrate using a crystal anisotropic etching method from a surface exposed toward the one surface of the substrate to a rear surface so that the independent second supply ports are respectively opened on the rear surface.
摘要:
Provided is a liquid ejection head including a substrate including a liquid supply port and an energy generating element, in which the liquid supply port has at least one groove shape formed in a wall surface thereof, the at least one groove shape extending from a rear surface, which is a surface opposite to a front surface on which the energy generating element is formed, toward the front surface.
摘要:
A method for manufacturing a liquid discharge head includes the steps of: forming a solid layer for forming a flow path on a substrate on which an energy generating element is arranged to generate energy that is used to discharge liquid; forming, on the substrate where the solid layer is mounted, a coating layer for coating the solid layer; forming a discharge port used to discharge a liquid, through a photolithographic process, in the coating layer deposited on the solid layer; and removing the solid layer to form a flow path that communicates with the energy element and the discharge port. A material used for the coating layer contains a cationically polymerizable chemical compound, a cationic photopolymerization initiator and an inhibitor of cationic photopolymerization, and a material of the solid layer that forms a boundary with a portion where the discharge port of the coating layer is formed contains a copolymer of methacrylic acid and methacrylate ester.
摘要:
A method for manufacturing a liquid discharge head including an energy generating element, which generates energy utilized for discharging a liquid, and a discharge portion provided at a position facing the energy generating element and having a discharge port for discharging the liquid is provided. This method includes the steps of forming a negative photosensitive resin layer used for a member that forms the discharge port on the substrate, and exposing the layer to an i-line to form the discharge portion that is tapered in a direction from the substrate to the discharge port, wherein the layer has an absorbance per 1 μm thickness of about 0.02 to about 0.07 for light used for the exposure.
摘要:
Provided is a laser processing method capable of improving precision of a processing shape and degree of freedom of the processing shape. When a recess portion is formed in a substrate (W) which is an object to be processed, an inner portion of the substrate (W) is scanned with a condensing point (LS1) of modification laser light (L1) which is first laser light to form a modified layer (Wr) which becomes a boundary of a laser processing region (R1) in a position corresponding to a bottom part of the recess portion (modified layer forming step). Next, a surface (Wa) of the substrate (W) is irradiated with condensed processing laser light which is second laser light to remove and process the laser processing region (R1) defined by the modified layer (Wr), to thereby form the recess portion (removing/processing step).
摘要:
There is disclosed a solid semiconductor element which very efficiently detects information about a liquid and bidirectionally exchanges the information with the outside. The solid semiconductor element is disposed in a liquid container, and includes at least energy converting unit, information acquiring unit, and information communicating unit. The energy converting unit converts an electromotive force from the outside to a power, and operates the information acquiring unit and information communicating unit. The information acquiring unit acquires the information about the liquid in which the solid semiconductor element is disposed from the liquid, and the information communicating unit transmits the information acquired by the information acquiring unit to the outside.
摘要:
A liquid discharge head includes a substrate having an energy generating element configured to generate energy required to discharge liquid, a discharge port configured to discharge the liquid and provided in an opposed relationship to the energy generating element, a wall member defining a chamber adapted to store the energy required to discharge liquid the energy being generated by the energy generating element, a discharge portion defining a fluid path connecting the chamber and the discharge port, a supply path facilitating supplying the liquid into the chamber, and a pair of hollow portions provided in the wall member, wherein the hollow portions oppose each other and sandwich at least the entire discharge port in a direction from the discharge port to the substrate, and the hollow portions are independent of the chamber.