industry news
Subscribe Now

Leti Will Discuss CoolCubeTM Technology for 3D Transistor Stacking At Workshop Preceding IEDM 2014

GRENOBLE, France – Dec. 11, 2014 – CEA-Leti will present its latest results on CoolCube™, the technique for stacking transistors sequentially in the same process flow for 3D-VLSI, at a Dec. 14 workshop in San Francisco, Calif. The workshop precedes IEDM 2014, Dec. 15-17.

“The technology is designed to allow a connection of the stacked active layers on a nanometric scale, with a very high density, due to their alignment by a standard lithographic process,” said Maud Vinet, Leti’s advanced CMOS laboratory manager, who will give the presentation. “This 3D concept should 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.”

Under development for eight years, CoolCube™ aims at cutting in half the thermal budget in manufacturing transistors, while maintaining their performance. This low-temperature fabrication allows vertical integration of a transistor without degrading the performance of the transistors beneath or the metal interconnects between the layers of the transistors.

During the continuation of the project over the next three years, Leti and its industrial partners will target development of a silicon component prototype of CoolCube™.

In addition to the CoolCubeTM overview, the workshop for invited guests will include summaries of 

  • Leti’s innovative route with industry
  • Emerging material for future market opportunities
  • Leti’s vision towards 10nm and below
  • Embedded NVM for the future
  • Going further with disruptive designs and architectures
  • Electronic medicine: a new market needing new medical methodologies

Leti also will present 17 papers, including four invited papers, at IEDM 2014. 

About CEA-Leti

By creating innovation and transferring it to industry, Leti is the bridge between basic research and production of micro- and nanotechnologies that improve the lives of people around the world. Backed by its portfolio of 2,200 patents, Leti partners with large industrials, SMEs and startups to tailor advanced solutions that strengthen their competitive positions. It has launched more than 50 startups. Its 8,000m² of new-generation cleanroom space feature 200mm and 300mm wafer processing of micro and nano solutions for applications ranging from space to smart devices. Leti’s staff of more than 1,700 includes 200 assignees from partner companies. Leti is based in Grenoble, France, and has offices in Silicon Valley, Calif., and Tokyo. Visit www.leti.fr for more information. Follow us on www.leti.fr and @CEA_Leti.

 

Leave a Reply

featured blogs
Jan 29, 2026
Most of the materials you read and see about gyroscopic precession explain WHAT happens, not WHY it happens....

featured chalk talk

Drone Applications & Technologies
Sponsored by Mouser Electronics and onsemi
In this episode of Chalk Talk, Bob Card from onsemi and Amelia Dalton explore the wide breadth of robotic and drone solutions offered by onsemi. They also investigate the role that current sense amplifiers, image sensors and inductive encoders play in these types of designs and how you can utilize onsemi solutions for your next innovative drone application.
Jan 26, 2026
10,802 views