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The emergence of the Metallization Wrap Through module technology has led to a need in the market for a low cost,low temperature,high durability interconnection technology.Electrically conductive adhesives (ECA) appear a promising alternative to soldering and offer the possibility of creating the interconnection bond during module lamination,thereby simplifying the module assembly process.Most commercial ECAs today rely on a matrix made of carbon-based polymers.However,silicone-based ECAs seem particularly suited for the application.Besides providing the traditional advantages of silicone materials,such as intrinsic durability,chemical stability and low moisture uptake,silicone-based ECAs have a key advantage in the application,namely its flexibility over a wide range of temperatures,which enables stress-relief and is beneficial for durability.Many ECA materials,typically originally developed for electronic applications,have a high silver content and therefore have a high cost.Recognizing the specific needs of the photovoltaic industry,our development efforts have been focusing on reducing the amount of Ag filler.The paper will compare high and low Ag contents silicone ECAs,showing that the new materials succeed in maintaining high conductivity while keeping the beneficial properties of silicone adhesives.Four-cells mini-modules have been made using the newly developed PV silicone ECA and show excellent performance and durability.