Takaki NIWA

Composite-Collector InGaP/GaAs HBTs for Linear Power Amplifiers
Takaki NIWA Takashi ISHIGAKI Naoto KUROSAWA Hidenori SHIMAWAKI Shinichi TANAKA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/04/01
Vol. E88-C  No. 4  pp. 672-677
Type of Manuscript:  Special Section PAPER (Special Section on Fundamental and Application of Advanced Semiconductor Devices)
Category: Compound Semiconductor Devices
Keyword: 
HBT, gallium arsenide, ruggedness, breakdown voltage, linearity, composite collector, WCDMA, 
 Summary | Full Text:PDF
AlGaAs/InGaAs HBT IC Modules for 40-Gb/s Optical Receiver
Risato OHHIRA Yasushi AMAMIYA Takaki NIWA Nobuo NAGANO Takeshi TAKEUCHI Chiharu KURIOKA Tomohiro CHUZENJI Kiyoshi FUKUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/03/25
Vol. E82-C  No. 3  pp. 448-455
Type of Manuscript:  Special Section PAPER (Special Issue on Ultra-High-Speed IC and LSI Technology)
Category: Compound Semiconductor Devices
Keyword: 
heterojunction bipolar transistor, preamplifier, optical frontend, distributed amplifier, optical receiver, 
 Summary | Full Text:PDF