** EU semiconductor stocks rise following South Korean chipmakers' rally on the global AI-driven tech momentum
** Dutch semiconductor equipment maker ASML ASML.AS, ASMI ASMI.AS and BESI BESI.AS, all three counting South Korean chipmakers as their customers, gain between 4% and 6%
** OpenAI's partnership with SK Hynix 000660.KS and Samsung Electronics 005930.KS spurs broad optimism for semiconductor stocks globally, Bernstein analyst Aleksander Peterc says
** Other notable raisers include Germany's Siltronic WAFGn.DE, France's Soitec SOIT.PA climbing over 4%
** Infineon IFXGn.DE, Melexis MLXS.BR, AMS-Osram AMS.S, Aixtron AIXGn.DE and STMicroelectronics STMPA.PA also gain 2-3%
(Reporting by Leo Marchandon)
((Leo.marchandon@thomsonreuters.com))