Electrostatic Discharge Tests for JUICE Photovoltaic Assembly

In the framework of JUICE Photovoltaic Assembly, development and testing activities have been carried out in order to verify the effectiveness of grounding networks solution against ESDs occurrence in charging environment. During prequalification phase, dedicated coupons have been manufactured and submitted to environmental test campaigns, including ESD characterization. As the PVA design has progressed, a new ESD coupon with more representative technologies has been then manufactured and tested for electrons charging, so to compare results and assess new design and materials. This paper firstly describes the coupons manufactured for ESD testing, then an overview on ESD characterizations performed is provided. Lastly, relevant conclusions and comparisons between the results are discussed.