Leti Reports FinFET Feasibility and Circuit Design for Better Area, Speed and Power Trade-offs with CoolCube Technology

GRENOBLE, France, July 13, 2015 -- CEA-Leti today announced its first results towards the demonstration of CoolCube’s feasibility in FinFET technology on its 300mm production line, and new CoolCubeTM circuit designs that improve the trade off between area, speed and power.

Key process steps developed on 300mm wafers show progress in closing the gap between the demonstration of a single device and taking the technology to fabrication.

CoolCubeTM is Leti’s sequential integration technology that enables the stacking of active layers of transistors in the third dimension. Under development for eight years, it aims at fully benefiting from the third dimension, and is enabled by cutting in half the thermal budget in manufacturing transistors, while maintaining their performance.

Mobile devices, where minimal power consumption is key, are the primary market for chips manufactured with the technology. CoolCubeTM also allows designers to include backside imagers in the chips, and co-integration of NEMS in a CMOS fabrication process also is possible.

“CoolCubeTM enables local via density that is 10,000 times higher than ‘standard’ 3D integration, because the technology is designed to connect stacked active layers at a nanometric scale,” said Maud Vinet, Leti’s advanced CMOS laboratory manager. “In the digital area, we expect this 3D technique to allow a gain of 50 percent in area and 30 percent in speed compared to the same technology generation in classic 2D – gains comparable to those expected in the next generation. In heterogeneous integration, we expect CoolCubeTM to be an actual enabler of smart-sensor arrays by allowing a close integration of sensors, detection electronics and digital signal processing.”

Leti’s team will be in the European Pavilion , South Hall, Booth #2317, during SEMICON West.

About Leti (France)

As one of three advanced-research institutes within the CEA Technological Research Division, CEA Tech-Leti serves as a bridge between basic research and production of micro- and nanotechnologies that improve the lives of people around the world. It is committed to creating innovation and transferring it to industry. Backed by its portfolio of 2,800 patents, Leti partners with large industrials, SMEs and startups to tailor advanced solutions that strengthen their competitive positions. It has launched 54 startups. Its 8,500m² of new-generation cleanroom space feature 200mm and 300mm wafer processing of micro and nano solutions for applications ranging from space to smart devices. With a staff of more than 1,800, Leti is based in Grenoble, France, and has offices in Silicon Valley, Calif., and Tokyo. Follow us on www.leti.fr and @CEA_Leti.

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