CONDUCTIVE ADHESIVE
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United States of America Patent
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Issued Date -
Feb 25, 2010
app pub date -
Jul 5, 2006
filing date -
Jul 5, 2006
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Abstract
Conductive adhesives, which do not have the problem of migration in conductive metals upon application of a voltage and which exhibit low resistance values, are provided.One embodiment of the present invention relates to a conductive adhesive comprising a conductive filler and a resin, characterized in that the conductive filler comprises an alloy powder of silver and tin and further contains an additive comprising at least one member selected from among a chelator, an antioxidant, and a metal surfactant. Additives that can be used are chelators such as hydroxyquinolines, salicylidene aminothiophenols or phenanthrolines, antioxidants such as hydroquinones or benzotriazoles, and metal surfactants such as organic acids, acid anhydrides or organic acid salts.
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