Solid electrolytic capacitor and method of making the same
AssigneeRohm Co., Ltd.
InventorMasahide Maeda
Life of this patent
Estimating the term…
Abstract
A solid electrolytic capacitor includes a capacitor element having an element body and an anode wire extending therefrom, an anode lead electrically connected to the anode wire, a cathode lead electrically connected to the element body, and a resin package integrally sealing these parts. Each of the anode lead and the cathode lead is a conductive plate. The element body is connected to the upper surface of the cathode lead. The anode wire is connected to the upper surface of the anode lead via a conductive bolster.
Claims16
A solid electrolytic capacitor comprising:
- a capacitor element including an element body and a conductive wire extending therefrom;
- a first electrode electrically connected to the element body;
- a second electrode electrically connected to the conductive wire;
- and
- a resin package integrally sealing said parts;
- each of the first electrode and the second electrode comprising a conductive plate and having a lower surface exposed at a lower surface of the resin package for serving as a terminal surface;
- the first electrode having an upper surface to which the element body is connected;
- the second electrode having an upper surface to which the conductive wire is connected via a conductive bolster.
A method of making a solid electrolytic capacitor which comprises a capacitor element including an element body and a conductive wire extending therefrom, and a resin package for sealing the capacitor element, the method comprising the steps of:
- preparing a plate-like fabrication frame including a plurality of unit regions arranged in a matrix, each of the unit regions including a first and a second electrodes having respective inner ends spaced from each other by a predetermined distance;
- connecting an element body of a capacitor element to an upper surface of each of the first electrodes and connecting a conductive wire extending from the element body to an upper surface of a corresponding one of the second electrodes via a conductive bolster;
- providing an intermediate article by resin-sealing the fabrication frame to enclose the capacitor elements while exposing the lower surfaces of the first electrodes and the second electrodes;
- and
- dividing the intermediate article into each of the unit regions.
A solid electrolytic capacitor comprising:
- a substrate including an upper surface formed with a first and a second electrodes, and a lower surface formed with terminal surfaces electrically connected to the first and the second electrodes, respectively;
- a capacitor element including an element body and a conductive wire extending therefrom;
- and
- a resin package for sealing the capacitor element;
- the element body being connected to the first electrode of the substrate;
- the conductive wire being connected to the second electrode of the substrate via a conductive bolster.
A method of making a solid electrolytic capacitor which comprises a capacitor element including an element body and a conductive wire extending therefrom, and a resin package for sealing the capacitor element, the method comprising the steps of:
- preparing a material board including a plurality of unit regions arranged in a matrix, each of the unit regions having an upper surface formed with a first and a second electrodes having respective inner ends spaced from each other by a predetermined distance and a reverse surface formed with terminal surfaces electrically connected to the first and the second electrodes, respectively;
- connecting an element body of a capacitor element to each of the first electrodes and connecting a conductive wire extending from the element body to a corresponding one of the second electrodes via a conductive bolster;
- providing an intermediate article by resin-sealing the material board to enclose the capacitor elements while exposing the terminal surfaces;
- and
- dividing the intermediate article into each of the unit regions.
Dependencies are inferred from the claim text.