Abstract: A power storage device includes a case member, a terminal member inserted in an insertion hole of the case member, and a resin member joined to the case member and the terminal member. The resin member includes, on a resin outer surface exposed on an outer side of the case member, at least any one of a recess and a projection portion increasing a creepage distance from a terminal outer surface, which is exposed on the outer side of the case member, of the terminal member to a case outer surface exposed on the outer side of the case member.

Abstract: A method for producing a power storage device includes an insert-molding step in which a resin member is formed by insert molding with a terminal member inserted in an insertion hole of a case member. This insert-molding step is performed using a molding mold that includes a top-surface contact portion which is to face and tightly contact with a terminal top surface of the terminal member, an inner annular flat portion and an outer annular flat portion to form a frame top surface of the resin member, and an annular protruding portion to form an annular groove of the resin member.

Abstract: A method for producing a power storage device includes a process of insert-molding. This process is to relatively move a first mold and a second mold to press a terminal top surface of a terminal member by a top-face close-contact portion of the first mold to a second-mold side and to press a to-be-contacted portion of the terminal member by a contact portion of the second mold to a first-mold side so that a deformed portion of the terminal member is elastically deformed. A resin member is thus insert-molded while the terminal top surface is pressed and tightly contacted with the top-face contact portion.

Abstract: A method for producing a power storage device includes an insert-molding step of making a resin member by insert-molding with respect to a terminal member inserted in an insertion hole of a lid. In this insert-molding step, the insertion hole of the lid is placed in front of a gate, and a molten resin is injected through the gate to flow in an opposite gate-side space in a cavity through the insertion hole, allowing the molten resin to spread over the entire cavity, to form the resin member.

Abstract: A method for producing a power storage device includes placing a lid assembly that includes a lid and a terminal member integrated therewith via a resin member to close an opening portion of a case body with the lid, and laser-welding the opening portion of the case body and the peripheral portion of the lid over an entire circumference. In placing the lid assembly, a peripheral high-level region, in which a peripheral outer surface of the peripheral portion of the lid is located on the outer side relative to an opening end surface of the opening portion of the case body is provided in proximate long-side opening portions, close of the opening portion and proximate long-side peripheral portions of the peripheral portion.

Abstract: A method for producing a power storage device includes closing an opening portion of a case body with a lid of a lid assembly, and laser-welding the opening portion of the case body and a peripheral portion of the lid over their entire circumference. A resin member has an outer surface including a scattered light-reached surface to which scattered light of a laser beam directly reaches, at least a part of the scattered light-reached surface including a smoothed region having a surface roughness of 0.6 ?m or less.

Abstract: A method for producing a power storage device includes forming a lid, forming a lid assembly, closing, and welding. In forming a lid, there is included forming, by forging, a protruding portion between a peripheral portion and an insertion-hole surrounding portion of the lid to block scattered light of a laser beam from being irradiated to a resin member, with a distance D from an end surface of the peripheral portion to a side surface of the protruding portion falling within 0.5t (D?0.5t) relative to a thickness t of the lid.

Abstract: A semiconductor device includes an insulating layer, a first conductive film, a second conductive film and a thin-film resistor. The insulating layer has a penetrating portion. The first conductive film is formed in the penetrating portion such that a recess is formed at an upper part of the penetration portion. The second conductive film is formed on an upper surface of the first conductive film and an inner surface of the penetrating portion. The thin-film resistor includes silicon and metal. The thin-film resistor is formed on the second conductive film and the insulating layer.

Abstract: A method of manufacturing a semiconductor device includes forming a first via having a first diameter in a first main surface of a semiconductor substrate having a first thickness, after forming a first insulating film on a bottom surface and a side surface of the first via, forming a first through electrode inside the first via a first barrier metal film, after forming the first through electrode, processing the semiconductor substrate from a second main surface on an opposite side of the first main surface to reduce the first thickness of the semiconductor substrate to a second thickness thinner than the first thickness, after processing the semiconductor substrate, forming a third insulating film on the second main surface of the semiconductor substrate, and after forming the third insulating film, sequentially processing the third insulating film and the semiconductor substrate.

Abstract: A method of manufacturing a semiconductor device includes forming a first via having a first diameter in a first main surface of a semiconductor substrate having a first thickness, after forming a first insulating film on a bottom surface and a side surface of the first via, forming a first through electrode inside the first via a first barrier metal film, after forming the first through electrode, processing the semiconductor substrate from a second main surface on an opposite side of the first main surface to reduce the first thickness of the semiconductor substrate to a second thickness thinner than the first thickness, after processing the semiconductor substrate, forming a third insulating film on the second main surface of the semiconductor substrate, and after forming the third insulating film, sequentially processing the third insulating film and the semiconductor substrate.

Abstract: Technology that achieves high integration of a semiconductor device employing TSV technology is provided. A through electrode is configured by a small-diameter through electrode having a first diameter and being formed on a main surface side of a semiconductor wafer, and a large-diameter through electrode having a second diameter larger than the above-described first diameter and being formed on a back surface side of the semiconductor wafer, and the small-diameter through electrode is arranged inside the large-diameter through electrode in a planar view so that a center position of the small-diameter through electrode and a center position of the large-diameter through electrode do not overlap with each other in the planar view.

Abstract: Technology that achieves high integration of a semiconductor device employing TSV technology is provided. A through electrode is configured by a small-diameter through electrode having a first diameter and being formed on a main surface side of a semiconductor wafer, and a large-diameter through electrode having a second diameter larger than the above-described first diameter and being formed on a back surface side of the semiconductor wafer, and the small-diameter through electrode is arranged inside the large-diameter through electrode in a planar view so that a center position of the small-diameter through electrode and a center position of the large-diameter through electrode do not overlap with each other in the planar view.

Abstract: An objective of this invention is to reliably form a plating film. The following two steps are sequentially conducted: a first step of connecting a film-formation surface of a wafer 109 to a cathode electrode 107, making the film-formation surface inclined from the surface of a plating solution 103 and immersing the wafer 109 into the plating solution 103 with applying a first current between the cathode electrode 107 and an Cu anode electrode 105 disposed in the plating solution 103, and second step of, after immersing the film-formation surface in the plating solution 103, applying a second current between the cathode electrode 107 and the Cu anode electrode 105 to form a metal film on the film-formation surface by electrolytic plating. In the first step, the first current is controlled on the basis of an inclination angle between the liquid surface and the film-formation surface.

Abstract: A post-CMP cleaning process of a copper layer is to be performed as follows. An alkaline aqueous solution, a polycarboxylic acid, BTA, and an alkaline aqueous solution are sequentially brought into contact with a primary surface of a silicon substrate over which the copper layer is provided.

Abstract: A post-CMP cleaning process of a copper layer is to be performed as follows. An alkaline aqueous solution, a polycarboxylic acid, BTA, and an alkaline aqueous solution are sequentially brought into contact with a primary surface of a silicon substrate over which the copper layer is provided.

Abstract: An objective of this invention is to reliably form a plating film. The following two steps are sequentially conducted: step 101 of connecting a film-formation surface of a wafer 109 to a cathode electrode 107, making the film-formation surface inclined from the surface of a plating solution 103 and immersing the wafer 109 into the plating solution 103 with applying a first current between the cathode electrode 107 and an Cu anode electrode 105 disposed in the plating solution 103, and step 103 of, after immersing the film-formation surface in the plating solution 103, applying a second current between the cathode electrode 107 and the Cu anode electrode 105 to form a metal film on the film-formation surface by electrolytic plating. In step 101, the first current is controlled on the basis of an inclination angle between the liquid surface and the film-formation surface.

Abstract: A post-CMP cleaning process of a copper layer is to be performed as follows. An alkaline aqueous solution, a polycarboxylic acid, BTA, and an alkaline aqueous solution are sequentially brought into contact with a primary surface of a silicon substrate over which the copper layer is provided.

Abstract: A post-CMP cleaning process of a copper layer is to be performed as follows. An alkaline aqueous solution, a polycarboxylic acid, BTA, and an alkaline aqueous solution are sequentially brought into contact with a primary surface of a silicon substrate over which the copper layer is provided.

Abstract: A post-CMP cleaning process of a copper layer is to be performed as follows. An alkaline aqueous solution, a polycarboxylic acid, BTA, and an alkaline aqueous solution are sequentially brought into contact with a primary surface of a silicon substrate over which the copper layer is provided.

Abstract: A post-CMP cleaning process of a copper layer is to be performed as follows. An alkaline aqueous solution, a polycarboxylic acid, BTA, and an alkaline aqueous solution are sequentially brought into contact with a primary surface of a silicon substrate over which the copper layer is provided.