Senior executive Andreas von Zitzewitz quit the company at the weekend following police raids. He and another manager at the firm are at the centre of claims they received six-figure kick-backs for arranging certain sponsorship contracts.
Infineon have previously held arrangements with the Ferrari and Jordan Formula One teams, in addition to Le Mans winning Audi Sport.
A major probe has been launched into German computer chip firm Infineon amid allegations of corruption centred around the firm's motorsport sponsorship.
