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2. K. Ohhata, F. Arakawa, T. Masuda, N. Shiramizu, and K. Washio: 40-Gb/s analog IC chipset for optical receivers-AGC amplifier, full-wave rectifier and decision circuit-implemented using selfaligned SiGe HBTs. Digest of the IEEE International Microwave Symposium, Phoenix, 2001, pp.1701-1704.
3. T. Masuda, K. Ohhata, N. Shiramizu, E. Ohue, K. Oda, R. Hayami, H. Shimamoto, M. Kondo, T. Harada, and K. Washio. 40 Gb/s 4:1 multiplexer and 1:4 demultiplexer IC module using SiGe HBTs. Digest of the IEEE International Microwave Symposium, Phoenix, 2001, pp.1697-1700.
4. SiGe HBT and BiCMOS technologies for optical transmission and wireless communication systems
5. S. Ueno, K. Watanabe, T. Kato, T. Shinohara, K. Mikami, T. Hashimoto, A. Takai, K. Washio, R. Takeyari, and T. Harada. Single-chip 10 Gb/s transceiver LSI using SiGe SOI/BiCMOS. Digest of Technical Papers of the IEEE International Solid-State Circuits Conference, San Francisco, 2001, pp.82-83.