Protecting resin-encapsulated components

A method of protecting surface mount capacitors from moisture and oxygen corrosion by applying a thermally curable pre-coat resin to a portion of the terminals of a capacitor and encapsulating the capacitor element(s) with a protective resin. The pre-coat resin is substantially rigid at ambient temp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: MELODY BRIAN JOHN,KINARD JOHN TONY,PERSICO DANIELF.,STOLARSKI CHRIS,LESSNER PHILLIP MICHAEL,CHEN QINGPING,PRITCHARD KIM,HARRINGTON ALBERT KENNEDY,WHEELER DAVID ALEXANDER
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method of protecting surface mount capacitors from moisture and oxygen corrosion by applying a thermally curable pre-coat resin to a portion of the terminals of a capacitor and encapsulating the capacitor element(s) with a protective resin. The pre-coat resin is substantially rigid at ambient temperatures and flexible at elevated temperatures and is preferably a lactone-containing epoxy resin. The pre-coat resin may be applied to a solder coating-free portion of the terminals by brush or wiper prior to encapsulating the capacitor element(s) with the protective resin.