Attorneys for Arm , and Qualcomm grilled a former Apple executive on Tuesday about a key question for the future of the chip industry: Who owns the intellectual property built on top of Arm's computing architecture?

The legal battle between Qualcomm and Arm Holdings has entered the court system this week, with opening arguments from both tech companies.

By Tom Hals and Max A. Cherney WILMINGTON, Delaware (Reuters) - The chief executive of Arm on Monday downplayed the company's ambitions to become a chip supplier in its own right at a trial against Qualcomm,