摘要:
A manufacturing method for a substrate for an ink jet head, including formation of an ink supply port in a silicon substrate, the method includes a step of forming, on one side of the substrate, an etching mask layer having an opening at a position corresponding ink supply port; a step of forming unpenetrated holes through the opening of the etching mask layer in at least two rows in a longitudinal direction of the opening; and a step of forming the ink supply port by crystal anisotropic etching of the substrate in the opening.
摘要:
The present invention provides a method for producing a liquid discharge head including a silicon substrate having, on a first surface, energy generating elements, and a supply port penetrating the substrate from the first surface to a second surface, which is a rear surface of the first surface of the substrate. The method includes the steps of: preparing the silicon substrate having a sacrifice layer at a portion on the first surface where the ink supply port is to be formed and an etching mask layer having a plurality of openings on the second surface, the volume of a portion of the sacrifice layer at a position corresponding to a portion between two adjacent said openings being smaller than the volume of a portion of the sacrifice layer at a position corresponding to the opening; etching the silicon substrate from the plurality of openings and etching the sacrifice layer.
摘要:
A method of manufacturing a liquid discharge head including a flow path member for forming a flow path communicating with a discharge port discharging a liquid forms a mold of the flow path made of a positive photosensitive resin on a substrate; applies a coated layer on the mold for forming the flow path member, which coated layer includes a solvent, an epoxy resin, and a curing agent of the epoxy resin; removes the solvent from the coated layer at a normal temperature under substantially 1 atm. so that the weight of the coated layer may become 93% or less of that of the coated layer at a time of the applying of the coated layer, and then further removes the solvent from the coated layer under a depressurized condition; cures the coated layer; and removes the mold to form the flow path.
摘要:
A manufacturing method for an ink jet recording head including an energy generating element for generating energy for ejecting ink, wiring and electrode pad for supplying electric power to the energy generating element, and a flow path formation member in which an ink flow path is formed in fluid communication with an ink ejection outlet, the manufacturing method includes a step of preparing a substrate on which the energy generating element, the wiring and the electrode pad have been formed; a step of forming a protection layer covering edges of and around generating element and the electrode pad; a step of forming, with patterning, an adhesion layer for adhering the flow path formation member to a surface of the substrate through the protection layer, on a portion of the protection layer where the flow path formation member is formed and a portion surrounding the electrode pad; a step forming through an electroless plating, a nickel layer covering the electrode pad and a gold layer covering the nickel layer to provide a bump.
摘要:
The method of manufacturing a recording head has a flow path wall forming step of forming flow path walls on a substrate having energy generating elements formed thereon, an imbedded material depositing step of depositing an imbedded material between the flow path walls and on a top of each flow path wall, a flattening step of polishing a top of the deposited imbedded material, until the top of the flow path wall is exposed, and a step of forming an orifice plate on the tops of the polished imbedded material and the exposed flow path wall. In the step of forming the flow path walls, patterning of a close contact property improvement layer is simultaneously performed to improve a close contact property between the flow path wall and the substrate.
摘要:
A method of manufacturing an ink jet head which discharges ink, comprising: a step of preparing a silicon substrate; a step of forming a membrane having a layer in which a plurality of holes are disposed to constitute a filter mask, and a layer with which a first surface is coated in such a manner that the first surface is not exposed from the plurality of holes on the first surface of the substrate; a step of forming a close contact enhancing layer on the membrane formed on the substrate; a step of forming a channel constituting member on the close contact enhancing layer to constitute a plurality of discharge ports and a plurality of ink channels communicating with the plurality of discharge ports; a step of forming an ink supply port communicating with the plurality of ink channels in the silicon substrate by anisotropic etching from a second surface facing the first surface of the substrate; and a step of forming a filter in a portion of the close contact enhancing layer positioned in an opening of the ink supply port using the layer of the membrane in which a plurality of holes are disposed as the mask.
摘要:
An ink supply port is opened in an Si substrate on which an ink discharge energy generating element is formed, by anisotropic etching, from a back surface opposite to a surface on which the ink discharge energy generating element is formed. When the anisotropic etching is effected, OSF (oxidation induced laminate defect) is remained on the back surface of the Si substrate with OSF density equal to or greater than 2×104 parts/cm2 and a length of OSF equal to or greater than 2 μm.
摘要翻译:在与形成有喷墨能量产生元件的表面相反的背面上,通过各向异性蚀刻在其上形成有喷墨能量产生元件的Si基板上打开供墨口。 当进行各向异性蚀刻时,OSF密度等于或大于2×10 4 / cm 2以上的Si衬底的背面上残留有OSF(氧化诱导层叠缺陷) >并且OSF的长度等于或大于2μm。
摘要:
The present invention permits to manufacture, with low cost and good through-put, a liquid discharge recording head in which a nozzle plate is formed from inorganic material. In the liquid discharge recording head according to the present invention, a nozzle plate formed from inorganic material is stacked on a front surface of a silicon substrate including heat generating resistant members for generating energy for discharging liquid and an electric circuit for driving the heat generating resistant members. The liquid can be supplied from a liquid supply port extending through the silicon substrate to flow paths provided between the silicon substrate and the nozzle plate. Recessed portions having predetermined depths are formed in a region of the surface of the silicon substrate, where the flow paths are formed, and discharge ports are formed above the recessed portions.
摘要:
The present invention provides an ink jet head substrate comprising a heat generating resistance member forming a heat generating portion, an electrode wiring electrically connected to the heat generating resistance member, and an anti-cavitation film provided on the heat generating resistance member and the electrode wiring via an insulation protection layer, and wherein the anti-cavitation film is formed from different materials with more than two layers.
摘要:
A method produces a liquid ejecting head having an ejection outlet for ejecting a liquid, a heat generating element for applying thermal energy to the liquid, a liquid flow path having a first path portion in fluid communication with the ejection outlet and a second path portion disposed below the first path portion and provided with the heat generating element in a bottom surface thereof, a partition wall for partitioning the liquid flow path into the first path portion and second path portion, and a movable member disposed above the heat generating element in the portion wall and arranged as displaceable to a side of the first path portion in accordance with a bubble generated in the liquid by the thermal energy in which upon generation of the bubble the first path portion and the second path portion are in fluid communication with each other and the pressure is directed toward the ejection outlet by the movable member displaced to eject the liquid droplet. The method includes a step of preparing a substrate provided with the heat generating element, a step of forming a grooved partition wall having the movable member and side walls of the second path portion, and a step of joining the grooved partition wall to the substrate to form the second path portion.