Broadcom Proposes to Buy Qualcomm for Over $100 Billion

Broadcom Ltd. made an unsolicited $105 billion takeover bid for Qualcomm Inc., the chip industry’s boldest bet yet that size will equal strength at a time of technological upheaval.

The approach, which would mark the biggest technology takeover ever, is an opportunistic move by Broadcom Chief Executive Hock Tan to grab a rival after a year of setbacks has left Qualcomm vulnerable. It is also a recognition of the value of Qualcomm’s wireless chips and related technology at a time when cellular communications are increasingly...