ST-Ericsson | 18,634 followers on LinkedIn. ST-Ericsson is an industry leader in design, development and creation of cutting edge mobile platforms and semiconductors across the broad spectrum of wireless technologies. Established in 2009, ST-Ericsson is a 50/50 joint venture uniting the wireless semiconductor division of STMicroelectronics (ST-NXP Wireless) and the mobile platform division of Ericsson (Ericsson Mobile Platforms). Today, the company is a key supplier to industry leaders, including mobile operators and device manufacturers, and we are actively engaged with seven of the top nine OEM manufacturers by revenue.