Arm, Qualcomm lawyers grill ex-Apple exec in chip design battle

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?

At stake in a trial in U.S. federal court in Delaware this week is the fate of Qualcomm’s push into the laptop business, where it is helping partners such as Microsoft try to regain ground that Windows computers lost to Apple after the iPhone maker introduced its own custom chips.