Manufacture of solid state capacitors
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United States of America Patent
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Jan 6, 2004
Grant Date -
N/A
app pub date -
Aug 19, 2002
filing date -
Sep 17, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention concerns the field of solid state capacitors and relates particularly to massed production methods for manufacturing solid state capacitors. The present invention seeks to provide a process simplification in order to provide an economic advantage. According to one aspect of the present invention there is provided a method of manufacturing multiple solid state capacitors comprising: providing a substrate layer; forming on an upper surface of the substrate layer a plurality of upstanding bodies consisting of porous sintered valve-action material; forming a dielectric layer on the bodies; applying an electrically insulating resist layer to the dielectric layer present in a region separating adjacent upstanding bodies, forming a cathode layer on the exposed dielectric layer on the upstanding bodies and on the resist layer between the bodies; applying a cathode terminal to an upper end region of each upstanding body; dividing the processed substrate into a plurality of individual capacitor bodies each having an anode terminal portion at one end comprising divided substrate, a capacitive portion comprising ore of the porous bodies and a cathode terminal portion at the other end.
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