FRANKFURT Nov 29 Infineon (IFXGn.DE) said on
Saturday that Fairchild Semiconductor's FCS.N patent lawsuit
against the German chip maker had been filed in response to a
similar case brought by Infineon against its U.S. rival.
Fairchild, a maker of power management and analog
microchips, filed a patent infringement lawsuit on Friday
against Infineon in the U.S. District Courts of Maine and
Delaware, saying that some of Infineon's products "infringe one
or more claims of eight Fairchild patents." [ID:nLT41976]
A spokesman for Infineon was not immediately able on
Saturday to provide further details on Infineon's case against
Fairchild. Calls seeking comment from Fairchild were not
The two companies are in a legal tussle over so called power
chips that regulate electricity supply in computers, sold by
Infineon under its CoolMOS and OptiMOS as well as Infineon IGBT
and CanPak brands.
Infineon and Fairchild have engaged in cross-licence
negotiations, but the talks recently soured, ultimately leading
to the lawsuit, according to Fairchild.
(Reporting by Alexander Huebner, writing by Ludwig Burger,
editing by Anthony Barker)