Method of manufacturing an aluminum solid electrolyte capacitor
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United States of America Patent
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Aug 12, 2003
Grant Date -
Jan 9, 2003
app pub date -
Jul 5, 2001
filing date -
Jul 5, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method of manufacturing an aluminum solid electrolyte capacitor, mass-production of aluminum solid electrolyte capacitors with high reliability and excellent quality is made possible by adopting a sequence of steps whereby it is ensured that no stress is applied to the capacitor body (for example coiled element), and by providing means that make possible implementation of these steps. A capacitor body 1 is inserted into a case 3 having a first aperture 3A that is open at the bottom and a second constricted aperture 3B at the top, via the first aperture 3A, and sealing and fixing are performed by a sealant 5 consisting of an epoxy resin, then the capacitor body 1 is coated or impregnated by introducing 3,4-ethylenedioxy-thiophene through the second aperture 3B, then solid electrolyte constituted by poly(3,4-ethylenedioxy-thiophene) is generated by an oxidative polymerization reaction, after which the second aperture 3B is sealed.
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