Infineon Technologies is trading now at €54.47, down 4.81%, with Monday’s share pressure partly linked to a new U.S. International Trade Commission investigation into Vicor’s power-delivery patent claims. - Infineon is one of 20 companies named; the probe makes no finding of infringement. - Semiconductor stocks also fell as memory-chip competition concerns weighed on the sector. No separate Infineon announcement explaining the full move was found.