Method of making solid electrolytic capacitor having oxidized anode wire
AssigneeRohm Co., Ltd.
InventorYasuo Kanetake
Life of this patent
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Abstract
A solid electrolyte capacitor includes a capacitor element, an anode lead, and a cathode lead. The capacitor element includes a capacitor chip, an anode wire projecting from the capacitor chip, and a cathode electrode formed on outer surfaces of the capacitor chip. The anode lead is electrically connected to the anode wire, whereas the cathode lead is electrically connected to the cathode electrode. A method for making such a solid electrolyte capacitor includes a laser irradiation step for irradiating the anode wire with a laser beam, and a connection step for connecting the anode wire with the anode lead after the laser irradiation step.
Claims11
A method for making a capacitor comprising:
- a capacitor element including a first and a second electrodes;
- a first lead electrically connected to the first electrode;
- and a second lead electrically connected to the second electrode;
- the method comprising:
- a laser irradiation step for irradiating the first electrode with a laser beam;
- and
- a connection step for connecting the first electrode to the first lead after the laser irradiation step.
A method for making a solid electrolyte capacitor comprising:
- a capacitor element including an element chip, an anode wire projecting from the element chip, and a cathode electrode formed on outer surfaces of the element chip;
- an anode lead electrically connected to the anode wire;
- a cathode lead electrically connected to the cathode electrode;
- and
- a resin package enclosing the capacitor element, a portion of the anode lead, and a portion of the cathode lead;
- wherein the method comprises:
- a laser irradiation step for irradiating the anode wire with a laser beam;
- and
- a connection step for connecting the anode wire to the anode lead after the laser irradiation step.
A method of processing a capacitor element comprising:
- an element chip;
- an anode wire projecting from the element chip and including a surface formed with an oxidized film;
- and a cathode electrode formed on an outer surface of the element chip;
- the method comprising a step of:
- removing at least a part of the oxidized film on the anode wire by laser irradiation.
Dependencies are inferred from the claim text.