Sprague, Timothy L.

Soji John's focus is in the electrical engineering and computer science areas, and he has worked on matters involving software, hardware, and systems.

Prior to joining Jones Day in 2008, Soji held several research and development positions at Texas Instruments (TI). He began his career at TI as a device designer, developing the company's first RF-SiGe process node. Subsequently, he spent several years as a lead designer on critical analog IP for wireless telecommunications products such as the first single-chip bluetooth and the first single-chip cellular transceiver. He also has developed power management solutions and backend-RF transceiver circuits that are used in consumer products manufactured by several corporations including Alcatel, Ericsson, Motorola, and Nokia. His most recent role at TI was managing the analog design validation group for the wireless terminal business unit responsible for developing a methodical, integrated, high-yield design approach.

In addition to his industrial experience, Soji's graduate school work dealt primarily with the application of SiGeC to heterostructure devices. He developed the ultra-high-vacuum chemical-vapor-deposition technology for SiGeC and then used these processes to fabricate column-IV high-electron mobility transistors (HEMTs) and heterojunction bipolar transistors (HBTs) with improved performance.

Soji is a registered professional engineer and a senior member of IEEE where he has served as a reviewer for several journals and conferences such as Transactions on Electron Devices and International Symposium on Circuits and Systems and the Device Research Conference.