Method for preparation of a substrate for a heat-generating device, method for preparation of a heat-generating substrate, and method for preparation of an ink jet recording head
AssigneeCanon Kabushiki Kaisha
InventorHaruhiko Terai
Life of this patent
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Abstract
Method for preparing a substrate for a heat generating device, such a heat generating substrate and an ink jet recording head having such substrate, includes the steps of irradiating a high density energy stream on the surface of a base material on which is provided a material capable of forming an insulating layer by heating, and forming a layer having insulating properties on the surface of said base material while melting the material by heating.
Claims25
A method for preparing a laminated product, the method comprising the steps of:
- irradiating high density energy onto a surface of a plate member so that the surface irradiated with said high density energy enters a molten state and solidifies to form an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 .mu.m;
- and
- mounting an energy transducing device on said insulating layer.
A method for preparing an ink jet recording head, the method comprising the steps of:
- irradiating high density energy onto a material provided on a surface of a base member for forming an insulating layer on said base member, wherein said material enters a molten state and solidifies to form on said base member an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 .mu.m or less;
- mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base member, said insulating layer and said electrothermal transducing device;
- and
- bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to a heat-generating portion of said electrothermal transducing device to form a liquid pathway.
A method for preparing an ink jet recording head, the method comprising the steps of:
- irradiating high density energy onto a base material so that a surface portion of said base material enters a molten state and solidifies to form an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 .mu.m;
- mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base material, said insulating layer and said electrothermal transducing device;
- and
- bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to a heat-generating portion of said electrothermal transducing device to form a liquid pathway.
A method for preparing a laminated product, the method comprising the steps of:
- irradiating a surface of a plate member with a laser beam having a power density on the order of 10.sup.5 W/cm.sup.2, thereby forming a smooth insulating area with a surface roughness of not more than Ra0.1 .mu.m on the surface of said plate member;
- and
- mounting an energy transducing device on said insulating area.
A method for preparing an ink jet recording head, the method comprising the steps of:
- irradiating a material provided on a base member for forming an insulating layer with a laser beam having a power density on the order of 10.sup.5 W/cm.sup.2, thereby forming an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 .mu.m on said base member;
- mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base member, said insulating layer and said electrothermal transducing device;
- and
- bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to a heat-generating portion of said electrothermal transducing device to form a liquid pathway.
A method for preparing an ink jet recording head, the method comprising the steps of:
- irradiating a surface portion of a base material with a laser beam having a power density on the order of 10.sup.5 W/cm.sup.2, thereby forming on the surface portion of said base material an insulating layer having a smooth surface with a surface roughness of not more than Ra0.1 .mu.m;
- mounting an electrothermal transducing device on said insulating layer, thereby forming a heat-generating substrate comprising said base material, said insulating layer and said electrothermal transducing device;
- and
- bonding together said heat-generating substrate and a member having a recessed portion so that said recessed portion corresponds to the heat-generating portion of said electrothermal transducing device to form a liquid pathway.
Dependencies are inferred from the claim text.