Abstract: A film capacitor includes a capacitor unit, and outer packaging resin covering the capacitor unit. The capacitor unit includes a capacitor group, a first bus bar, a second bus bar, and a fixation portion. The capacitor group includes a plurality of capacitor elements. The first bus bar extracts electricity from the capacitor group. The second bus bar extracts electricity from the capacitor group. The first bus bar and the second bus bar are fixed to the fixation portion. The first bus bar includes a connection terminal part formed at one end of the first bus bar, and the second bus bar includes a connection terminal part formed at one end of the second bus bar. At least one of the connection terminal part of the first bus bar and the connection terminal part of the second bus bar is coupled to the fixation portion.

Abstract: A film capacitor includes a capacitor unit, and outer packaging resin covering the capacitor unit. The capacitor unit includes a capacitor group, a first bus bar, a second bus bar, and a fixation portion. The capacitor group includes a plurality of capacitor elements. The first bus bar extracts electricity from the capacitor group. The second bus bar extracts electricity from the capacitor group. The first bus bar and the second bus bar are fixed to the fixation portion. The first bus bar includes a connection terminal part formed at one end of the first bus bar, and the second bus bar includes a connection terminal part formed at one end of the second bus bar. At least one of the connection terminal part of the first bus bar and the connection terminal part of the second bus bar is coupled to the fixation portion.

Abstract: A solid electrolytic capacitor includes: an insulating substrate; a capacitor element; a positive electrode lead-out structure; and a negative electrode lead-out structure. The positive electrode lead-out structure includes: a positive electrode terminal formed on the insulating substrate; a first positive electrode connection member formed on the insulating substrate; a second positive electrode connection member electrically connecting the first positive electrode connection member to the positive electrode terminal; and a pillow member configured to electrically connect the capacitor element to the first positive electrode connection member. The first positive electrode connection member has a recessed portion or a through hole. The recessed portion or the through hole overlaps an edge of a bottom surface of the pillow member having a first end of the recessed portion or the through hole disposed outside the edge and a second end of the recessed portion or the through hole disposed inside the edge.

Abstract: A solid electrolytic capacitor includes: an insulating substrate; a capacitor element; a positive electrode lead-out structure; and a negative electrode lead-out structure. The positive electrode lead-out structure includes: a positive electrode terminal formed on the insulating substrate; a first positive electrode connection member formed on the insulating substrate; a second positive electrode connection member electrically connecting the first positive electrode connection member to the positive electrode terminal; and a pillow member configured to electrically connect the capacitor element to the first positive electrode connection member. The first positive electrode connection member has a recessed portion or a through hole. The recessed portion or the through hole overlaps an edge of a bottom surface of the pillow member having a first end of the recessed portion or the through hole disposed outside the edge and a second end of the recessed portion or the through hole disposed inside the edge.

Abstract: A solid electrolytic capacitor comprising a capacitor element disposed on an insulating substrate, in which a positive electrode lead-out structure electrically connected to a positive electrode member of the capacitor element comprises a first positive electrode connection member disposed on the insulating substrate, a positive electrode terminal disposed on the insulating substrate, a pillow member configured to electrically connect the positive electrode member to the first positive electrode connection member, and a positive electrode bonding member. The first positive electrode connection member has a recessed portion or a through hole. The positive electrode bonding member partially enters the recessed portion or the through hole, and is in contact with an edge of a bottom surface of the pillow member at a position above the recessed portion or the through hole, or at the nearby position.

Abstract: A solid electrolytic capacitor comprises insulating substrate having an upper surface and a lower surface, a capacitor element disposed on the upper surface, a positive electrode lead-out structure, a negative electrode lead-out structure, and an exterior body configured to cover the capacitor element on the upper surface. The capacitor element has a positive electrode member, a negative electrode member, and a dielectric member. The positive electrode lead-out structure has a positive electrode terminal formed on the lower surface of the insulating substrate and is electrically connected to the positive electrode member. The negative electrode lead-out structure has a negative electrode terminal formed on the lower surface of the insulating substrate and is electrically connected to the negative electrode member. The insulating substrate has a step portion made up of a recessed surface formed by recessing the upper surface and a projected surface formed by projecting the lower surface.

Abstract: A solid electrolytic capacitor comprising a capacitor element disposed on an insulating substrate, in which a positive electrode lead-out structure electrically connected to a positive electrode member of the capacitor element comprises a first positive electrode connection member disposed on the insulating substrate, a positive electrode terminal disposed on the insulating substrate, a pillow member configured to electrically connect the positive electrode member to the first positive electrode connection member, and a positive electrode bonding member. The first positive electrode connection member has a recessed portion or a through hole. The positive electrode bonding member partially enters the recessed portion or the through hole, and is in contact with an edge of a bottom surface of the pillow member at a position above the recessed portion or the through hole, or at the nearby position.

Abstract: A solid electrolytic capacitor comprises insulating substrate having an upper surface and a lower surface, a capacitor element disposed on the upper surface, a positive electrode lead-out structure, a negative electrode lead-out structure, and an exterior body configured to cover the capacitor element on the upper surface. The capacitor element has a positive electrode member, a negative electrode member, and a dielectric member. The positive electrode lead-out structure has a positive electrode terminal formed on the lower surface of the insulating substrate and is electrically connected to the positive electrode member. The negative electrode lead-out structure has a negative electrode terminal formed on the lower surface of the insulating substrate and is electrically connected to the negative electrode member. The insulating substrate has a step portion made up of a recessed surface formed by recessing the upper surface and a projected surface formed by projecting the lower surface.

Abstract: A solid electrolytic capacitor includes a capacitor element, an anode terminal, and a cathode terminal. The anode terminal is electrically connected to the anode lead of the capacitor element through a pillow portion formed on a surface of the anode terminal. The cathode terminal is electrically connected to the cathode layer of the capacitor element. A method of manufacturing the solid electrolytic capacitor includes steps (a) and (b). In the step (a), a first printed portion to become the pillow portion is formed by performing printing on a predetermined place of the surface of the anode terminal with paste containing a conductive material and resin. In the step (b), the anode lead is connected to a tip end part of the first printed portion.

Abstract: A solid electrolytic capacitor includes a capacitor element from which an anode lead projects forward and having a surface on which a cathode layer is formed, an exterior resin covering the capacitor element, and anode and cathode terminals including, respectively, an anode and cathode terminal surfaces which are exposed from a bottom surface of the exterior resin. The anode terminal is formed from one metal plate, and includes a terminal part forming the anode terminal surface, a folded part folded back at a side edge of the terminal part and arranged over a top surface of the terminal part, and an upright part bent vertically to the top surface of the terminal part at a front edge or a rear edge of a tip end part of the folded part. A tip end part of the anode lead is electrically connected to a tip end of the upright part.

Abstract: A method for manufacturing a solid electrolytic capacitor, capable of joining a bolster member interposed between an anode lead and an anode lead frame to the anode lead frame with good adhesion property and high positional accuracy where a bolster member is obtained from a ladder-shaped frame such that a width of the bolster member in a direction perpendicular to a lead-out direction of an anode lead is larger than a width of an anode lead frame, and the bolster member is aligned with the anode lead frame while being chucked, and then is joined to the anode lead frame.

Abstract: A solid electrolytic capacitor of the present invention includes a capacitor element having an anode member, a dielectric member, and a cathode member; an anode terminal attached to the anode member; a cathode terminal attached to the cathode member; and a housing for covering an outer periphery of the capacitor element, the anode terminal and the cathode terminal being each at least partly exposed from an undersurface of the solid electrolytic capacitor, the anode terminal having a projection formed by rolling using a roll having a large diameter portion and a small diameter portion, and being connected to the anode member at the projection.

Abstract: Object The invention provides a method for manufacturing a solid electrolytic capacitor, capable of joining a bolster member interposed between an anode lead and an anode lead frame to the anode lead frame with good adhesion property and high positional accuracy. Solution A bolster member is obtained from a ladder-shaped frame. A width of the bolster member in a direction perpendicular to a lead-out direction of an anode lead is larger than a width of an anode lead frame. The bolster member is aligned with the anode lead frame while being chucked, and then is joined to the anode lead frame.

Abstract: A solid electrolytic capacitor comprises a capacitor element from which an anode lead projects forward and having a surface on which a cathode layer is formed, an exterior resin covering the capacitor element, and anode and cathode terminals including, respectively, an anode and cathode terminal surfaces which are exposed from a bottom surface of the exterior resin. The anode terminal is formed from one metal plate, and comprises a terminal part forming the anode terminal surface, a folded part folded back at a side edge of the terminal part and arranged over a top surface of the terminal part, and an upright part bent vertically to the top surface of the terminal part at a front edge or a rear edge of a tip end part of the folded part. A tip end part of the anode lead is electrically connected to a tip end of the upright part.

Abstract: A solid electrolytic capacitor of the present invention includes a capacitor element having an anode member, a dielectric member, and a cathode member; an anode terminal attached to the anode member; a cathode terminal attached to the cathode member; and a housing for covering an outer periphery of the capacitor element, the anode terminal and the cathode terminal being each at least partly exposed from an undersurface of the solid electrolytic capacitor, the anode terminal having a projection formed by rolling using a roll having a large diameter portion and a small diameter portion, and being connected to the anode member at the projection.

Abstract: A solid electrolytic capacitor of the present invention includes a capacitor element having an anode member, a dielectric member, and a cathode member; an anode terminal attached to the anode member; a cathode terminal attached to the cathode member; and a housing for covering an outer periphery of the capacitor element, the anode terminal and the cathode terminal being each at least partly exposed from an undersurface of the solid electrolytic capacitor, the anode terminal having a projection formed by rolling using a roll having a large diameter portion and a small diameter portion, and being connected to the anode member at the projection.

Abstract: The invention provides a process for fabricating a solid electrolytic capacitor of the chip type which process includes the steps of plating a fabrication frame comprising an anode terminal member and a cathode terminal member projecting from a pair of side frame members respectively so as to be opposed to each other, the anode terminal member being stepped so as to provide a lower portion toward the cathode terminal member, a hole extending vertically and being formed in each of the anode terminal member and a higher portion of the cathode terminal member, joining an anode lead of a capacitor element to an upper surface of the cathode terminal member and a bottom surface of the capacitor element to an upper surface of the lower portion of the cathode terminal member, forming a packaging resin portion around the capacitor element without permitting resin to ingress into the holes, and cutting the anode and cathode terminal members along vertical planes extending through the respective holes.

Abstract: An anode terminal or a cathode terminal is provided with an exposure portion that extends substantially perpendicularly to an arrangement direction of the two terminals and that have an end face exposed on a side face of a housing. At least the end face on the exposure portion is plated for improving the solder wettability. Furthermore, a front end portion of the exposure portion is bent upwards along a peripheral face of the housing.

Abstract: A solid electrolytic capacitor of the present invention includes a capacitor element having an anode member, a dielectric member, and a cathode member; an anode terminal attached to the anode member; a cathode terminal attached to the cathode member; and a housing for covering an outer periphery of the capacitor element, the anode terminal and the cathode terminal being each at least partly exposed from an undersurface of the solid electrolytic capacitor, the anode terminal having a projection formed by rolling using a roll having a large diameter portion and a small diameter portion, and being connected to the anode member at the projection.

Abstract: A process of the invention for fabricating a capacitor element includes the steps of forming a dielectric coating on a surface of an anode body and a surface of lower part of a projecting portion of an anode lead member implanted in the anode body, forming a precoat layer of an electrically conductive high polymer on the dielectric coating, exposing an area of the surface of the lower part in an annular form by partly removing the dielectric coating and the precoat layer, forming an electrically conductive high polymer layer on the precoat layer using an electrolytic polymerization process by immersing the anode body in a solution of a monomer so as to position said area of the surface of the lower part at the liquid level of the solution, and deburring the conductive high polymer formed on said area of the surface of the lower part.