• 文献标题:   Large scale integration of graphene transistors for potential applications in the back end of the line
  • 文献类型:   Article, Proceedings Paper
  • 作  者:   SMITH AD, VAZIRI S, RODRIGUEZ S, OSTLING M, LEMME MC
  • 作者关键词:   graphene, transistor, process integration, wafer scale
  • 出版物名称:   SOLIDSTATE ELECTRONICS
  • ISSN:   0038-1101 EI 1879-2405
  • 通讯作者地址:   Univ Siegen
  • 被引频次:   13
  • DOI:   10.1016/j.sse.2014.12.014
  • 出版年:   2015

▎ 摘  要

A chip to wafer scale, CMOS compatible method of graphene device fabrication has been established, which can be integrated into the back end of the line (BEOL) of conventional semiconductor process flows. In this paper, we present experimental results of graphene field effect transistors (GFETs) which were fabricated using this wafer scalable method. The carrier mobilities in these transistors reach up to several hundred cm(2) V-1 s(-1). Further, these devices exhibit current saturation regions similar to graphene devices fabricated using mechanical exfoliation. The overall performance of the GFETs can not yet compete with record values reported for devices based on mechanically exfoliated material. Nevertheless, this large scale approach is an important step towards reliability and variability studies as well as optimization of device aspects such as electrical contacts and dielectric interfaces with statistically relevant numbers of devices. It is also an important milestone towards introduting graphene into wafer scale process lines. (C) 2015 Elsevier Ltd. All rights reserved.