Performance and potential of germanium on insulator field-effect transistors

D. S. Yu, H. L. Kao, Albert Chin, S. P. McAlister*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The performance of field-effect transistors may be improved by increasing the channel mobility. Strained Si can accomplish this but Ge is another option. Here we show data for germanium-on-insulator (GOI) devices and also describe the simple bonding process which was used in the device fabrication. The GOI devices show better mobilities than their Si counterparts. We also show data for some metal-gate/high- κ dielectric devices on a GOI layer fabricated on a processed Si wafer. Here the GOI structure and processing does not alter the underlying Si devices and yet gives devices whose mobilities exceed those of Si devices. Simulations support the view that the improved performance results from the mobility enhancement and that the performance should also hold for submicron devices.

Original languageEnglish
Pages (from-to)690-693
Number of pages4
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Issue number3
StatePublished - 22 May 2006

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