In its complaint, DuPont alleges that by sourcing and using PV cells and solar modules containing Samsung SDI front side metallization paste, SunEdison infringes on that technology.

"DuPont will enforce its patent rights to protect our substantial investment in innovation to improve solar energy efficiency," says Peter Brenner, global PV business marketing manager, Microcircuit Materials, DuPont Electronics & Communications.  

"Installers and module makers like SunEdison are responsible for ensuring that their products do not use infringing cells or pastes.