Abstract
An overview of SiGe modulation-doped field-effect transistor (MODFET) technology is provided. The layer structures and mobility enhancements for both p- and n-channel modulation-doped quantum wells are described and compared to mobilities in Si/SiO 2 inversion layers. Next, previous results on high-performance n- and p-MODFETs fabricated at IBM and elsewhere are reviewed, followed by recent results on laterally-scaled Si/SiGe n-MODFETs with gate lengths as small as 70 nm. We conclude with a discussion of the materials issues for the future vertical and lateral scaling of SiGe MODFETs.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 171-179 |
| Number of pages | 9 |
| Journal | Materials Research Society Symposium Proceedings |
| Volume | 809 |
| State | Published - Dec 1 2004 |
| Event | High-Mobility Group-IV Materials and Devices - San Francisco, CA, United States Duration: Apr 13 2004 → Apr 15 2004 |
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