U.S. Creates Seamless Graphene Seamless Integrated Circuit Architecture

According to reports recently organized by the Physicist Organization Network, American scientists have developed a new integrated circuit architecture and made a model. Within this architecture, transistors and interconnect devices are seamlessly integrated on a sheet of graphene. The latest study, published in Applied Physics Letters, will help scientists create ultra-flexible, flexible, transparent electronic devices.

Currently, bulk materials are used to fabricate transistors and interconnection devices, so it is difficult to make integrated circuits smaller, and bulk materials also easily lead to larger “contact resistance” between transistors and interconnection devices. Both will reduce the performance of transistors and interconnected devices and increase power consumption. Graphene-based transistors and interconnect devices have great promise and are expected to solve these basic problems.

The leader of the study, Prof. Gustav Barnagi, professor of the Department of Electronics and Computer Engineering at the University of California, Santa Barbara (UCSB) and director of the Nanoelectronic Devices Research Laboratory, said: “Graphene is the thinnest material In addition, it also has a tunable bandgap.Narrow graphene ribbons can be used to fabricate semiconductors, while wide graphene ribbons are metal.Different graphene ribbons can be made into different devices, and the resulting device can be Combined together, this also reduces contact resistance."

In the experiment, the Barnagi research team used the non-equilibrium Green's function (NEGF) to evaluate the performance of a complex circuit architecture containing so many heterogeneous structures and developed a method to design this Graphene's logic circuit. The research collaborator Kang Jiahao (transliteration) stated: "The accurate evaluation of the situation of electronic devices and interconnected devices made by different types of graphene nanoribbons and the situation across their interfaces is our circuit design success and The key to optimization."

Philip Jim, a professor of physics at Columbia University and a professor of physics at Columbia University, said: "This research provides a contact resistance problem that traditional integrated circuits will encounter by using an all-graphene device-interconnect architecture. A solution that will significantly simplify the integrated circuit construction process for graphene-based nanoelectronic devices."

The results show that compared with the current integrated circuit technology, the new all-graphene circuit has a higher noise margin and consumes much lower static power consumption. In addition, Barnagi said that with the continuous progress in the research field of graphene, this all-graphene circuit is expected to become a reality in the near future. (Liu Xia)