Electrolytic capacitor and method of manufacture

Details Electrolytic capacitor and method of manufacture Electrolytic capacitor and method of manufacture

1997-11-12

1999-10-19

Booth, Richard

Metal working

Barrier layer or semiconductor device making

Barrier layer device making

205152, 3613015, 3613061, 3613063, 3613212, 3613126, B21F 4100

Patent

active

059682108

ABSTRACT:
A method of manufacturing a capacitor by highly etching a foil sheet, and at selected relief portions of the sheet, reducing the surface area coefficient. An anode sheet is cut from the foil sheet and assembled with other capacitor components. The surface area coefficient may be reduced by coining or mechanically compressing at the selected relief portions, and an oxide layer may be formed on the sheet after coining.

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patent: 4942501 (1990-07-01), Macfarlane et al.
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patent: 5146391 (1992-09-01), Macfarlane et al.
patent: 5153820 (1992-10-01), Macfarlane et al.
patent: 5584890 (1996-12-01), MacFarlane et al.
patent: 5660737 (1997-08-01), Elias et al.
patent: 5715133 (1998-02-01), Harrington et al.

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