Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2006/07/01 Vol. E89-CNo. 7pp. 883-890 Type of Manuscript: INVITED PAPER (Special Section on Heterostructure Microelectronics with TWHM2005) Category: Keyword: mixed-signal ICs, very high speed ICs, VHSIC, InP DHBT, optical transmission system,