A 40GHz fT SATURN Transistor Using 2-Step Epitaxial Base Technology

Hirokazu FUJIMAKI  Koji YAMONO  Kenichi SUZUKI  

IEICE TRANSACTIONS on Electronics   Vol.E79-C   No.4   pp.549-553
Publication Date: 1996/04/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Ultra-High-Speed LSIs)
bipolar LSI,  epitaxy,  self alignment,  cut-off frequency,  optical communication,  

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We have developed the Epi-Base SATURN process as a silicon bipolar process technology which can be applied to optical transmission LSIs. This process technology, to which low temperature selective epitaxial growth technology is applied, is based on the SATURN process. By performing selective epitaxial growth for base formation in 2 steps, transistors with a 40GHz maximum cut-off frequency have been fabricated. In circuit simulation based on SPICE parameters of transistors, the target performance required for 2.4 Gbit/s optical interface LSIs has been achieved.