LONDON Fairchild Semiconductor (San Jose, Calif.) is suing Infineon Technologies AG in the U.S. District Courts of Maine and Delaware, claiming some of the German group's CoolMOS and OptiMOS power management devices, as well as its Infineon IGBT and CanPak parts, infringe one or more of eight Fairchild patents.
"We are very confident in our position in this outgoing patent dispute and will fight to protect our intellectual property," said Fairchild Vice President and General Manager Justin Chiang.
The two providers of power management parts have for long held patent cross-license negotiations, but the talks recently broke down, leading to the lawsuit, according to Fairchild.
In a separate case, in September, a U.S. District Court dismissed a challenge by Fairchild Semiconductor to the enforceability of four patents held by high-voltage analog IC vendor Power Integrations Inc. and ruled the patents enforceable.
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