Solid electrolyte capacitor and method for manufacturing same

Patent metadata

Field	Value
Publication number	US-10818439-B2
Application number	US-201916270329-A
Country	US
Kind code	B2
Filing date	Feb 7, 2019
Priority date	Aug 31, 2016
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A method for manufacturing a solid electrolyte capacitor, the method including: preparing a connection body including a frame and a plurality of capacitor elements, the frame including a plurality of element connection units and a coupling portion that integrally couples the plurality of element connection units with each other, the plurality of element connection units being provided along a first direction and a second direction intersecting with first direction the plurality of capacitor elements being connected to the plurality of element connection units; sealing the plurality of capacitor elements by using a sealing resin having a stripe shape that extends in the first direction; forming a groove in the sealing resin by running a blade along the second direction between the capacitor elements adjacent in the first direction; and segmenting the plurality of capacitor elements by cutting the sealing resin along a bottom surface of the groove by laser and cutting a boundary between each of the plurality of element connection units and the coupling portion by laser.

First claim

What is claimed is:

1. A method for manufacturing a solid electrolyte capacitor, the method comprising:
preparing a connection body including a frame having a sheet shape and a plurality of capacitor elements, the frame including a plurality of element connection units and a coupling portion that integrally couples the plurality of element connection units with each other, the plurality of element connection units being provided into a matrix shape along a first direction and a second direction intersecting with the first direction, the plurality of capacitor elements being respectively connected to the plurality of element connection units;
sealing the plurality of capacitor elements included in the connection body by using a sealing resin, the sealing resin having a stripe shape that extends in the first direction;
forming a groove in the sealing resin by running a blade along the second direction between capacitor elements adjacent in the first direction among the plurality of capacitor elements to perform dicing of the sealing resin; and
segmenting the plurality of capacitor elements sealed in the sealing resin by cutting the sealing resin along a bottom surface of the groove by laser and cutting a boundary between each of the plurality of element connection units and the coupling portion by laser.

2. The method according to claim 1 , wherein the bottom surface of the groove and one of surfaces of the frame are substantially flush with each other.

3. The method according to claim 1 , wherein the connection body has a rectangular shape including a long side and a short side, and
the short side is substantially parallel to the first direction.

4. The method according to claim 1 , wherein each of the plurality of capacitor elements includes an anode body, a dielectric layer disposed on the anode body, and a cathode unit disposed on the dielectric layer, and
each of the plurality of element connection units includes an anode terminal portion electrically connected to the anode body and a cathode terminal portion electrically connected to the cathode unit.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Kashihara Masanori
• Oshima Yumiko
• Kato Atsushi
• Murakami Kazuhiro

Classifications

• H01G9/15 Primary

  Solid electrolytic capacitors (H01G11/00 takes precedence) · CPC title

• H01G9/00

  Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture · CPC title

• H01G9/08

  Housing; Encapsulation · CPC title

• H01G9/012

  specially adapted for solid capacitors · CPC title

• H01G9/07

  Dielectric layers · CPC title