updated 12:05 pm EDT, Wed April 9, 2014
May support rumors of Apple moving baseband design in-house
Two senior baseband engineers have left Broadcom for Apple this year, says AppleInsider. One of these is Paul Chang, who worked at Broadcom for 11 years, and was the RF hardware lead on baseband transceivers used by Nokia and Samsung. Chang's name is also on three Broadcom patents related to circuit manufacturing. According to his LinkedIn profile, Chang is now a senior program manager at Apple, having joined the company in February.
The other engineer is Xiping Wang, who switched in January after spending a decade at Broadcom. There he served as a design engineer, as well as a hardware development manager.
Apple has hired 30 or more baseband software and hardware engineers from Broadcom and Qualcomm during the past three years, and has openings for 50 more jobs related to RF chip design. All of these facts may support the claim that Apple wants to bring iPhone baseband development in-house, presumably to improve efficiency and integration, and avoid paying companies like Qualcomm for off-the-shelf designs.