Long-standing sanctions and export controls have failed to keep chips from AMD, Intel, Texas Instruments and others out of the hands of Russia’s military companies Photo by Crstrbrt/Getty Images/Postmedia files

Microchip manufacturers Intel Corp. , Advanced Micro Devices Inc. and Texas Instruments Inc. were accused in a series of lawsuits of failing to keep their technology out of Russian-made weapons used to kill and wound civilians in Ukraine.

Those companies – along with a company owned by Warren Buffett’s Berkshire Hathaway Inc. – demonstrated “willful ignorance” as third parties resold restricted chips to Russia to power drones and missiles in violation of United States sanctions , according to one of the five suits, filed Wednesday in state court in Texas.

The laws

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