Haruki YOKOYAMA


Estimation of Transit Time in Terahertz Oscillating Resonant Tunneling Diodes with Graded Emitter and Thin Barriers
Atsushi TERANISHI Safumi SUZUKI Kaoru SHIZUNO Masahiro ASADA Hiroki SUGIYAMA Haruki YOKOYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/03/01
Vol. E95-C  No. 3  pp. 401-407
Type of Manuscript:  PAPER
Category: Semiconductor Materials and Devices
Keyword: 
resonant tunneling diodesterahertz oscillatorgraded emittercollector transit time
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49-GHz Operation of an SCFL Static Frequency Divider Using High-Speed Interconnections and InP-Based HEMTs
Yohtaro UMEDA Kazuo OSAFUNE Takatomo ENOKI Haruki YOKOYAMA Yasunobu ISHII 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/07/25
Vol. E82-C  No. 7  pp. 1080-1085
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: Active Devices and Circuits
Keyword: 
InPHEMTICinterconnectiondelaystatic frequency divider
 Summary | Full Text:PDF

Ultrahigh-Speed IC Technologies Using InP-Based HEMTs for Future Optical Communication Systems
Yohtaro UMEDA Takatomo ENOKI Taiichi OTSUJI Tetsuya SUEMITSU Haruki YOKOYAMA Yasunobu ISHII 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/03/25
Vol. E82-C  No. 3  pp. 409-418
Type of Manuscript:  INVITED PAPER (Special Issue on Ultra-High-Speed IC and LSI Technology)
Category: 
Keyword: 
InPHEMTICoptical communicationdelay
 Summary | Full Text:PDF