Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Toshiyuki Okayasu"'
Autor:
Fumiki Hosoi, Atsushi Ono, T. Inoue, Yusuke Hayase, Daisuke Watanabe, T. Shirai, Toshiyuki Okayasu, T. Akiyama, Masashi Shibata, K. Ueno
Publikováno v:
Journal of Lightwave Technology. 22:2064-2082
A protocol-free parallel optical interconnecting module is introduced as a solution to solve memory test system transmission bottlenecks. The optical transmission system flexibly suited for a memory test system is reviewed and discussed. A parallel o
Autor:
Atsushi Seki, Shin Masuda, Atsushi Ono, Daisuke Watanabe, Toshiyuki Okayasu, Hideo Hara, Tsuyoshi Ataka
Publikováno v:
ITC
To enable high-volume testing of LSIs with high-speed optical and electrical interfaces, we developed a proof-of-concept device of an optical LSI test system for use in mass-production testing. Key technologies include high-density and high-performan
Publikováno v:
ITC
This paper proposes a method for testing a device with multi-level signal interfaces. This method utilizes multi-level drivers that generate multi-level signals and multi-level comparators that are based on a new concept. The multi-level drivers can
Autor:
Tasuku Fujibe, Masakatsu Suda, Kazuhiro Yamamoto, Kazuhiro Fujita, Toshiyuki Okayasu, Y. Nagata, Daisuke Watanabe
Publikováno v:
ITC
A dynamic arbitrary jitter injection method that can be integrated into our high speed and high density CMOS timing generator has been developed. This method makes it possible to inject arbitrary jitter including Periodic Jitter, Random Jitter and Da
Publikováno v:
ISSCC
Data communication over 300m of distance, such as Ethernet standards, where the required data rate per channel reaches 10Gb/s or more, demand optical transmission [1]. Vertical-cavity surface-emitting laser (VCSEL) and multimode optical fiber (MMF) a
Publikováno v:
2007 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium.
An on-chip data jitter measurement circuit in 0.11-mum CMOS is demonstrated. It utilizes a data-to-clock converter, pulse generators, and an integrator followed by a sample-&-hold. The circuit outputs a data jitter waveform in real-time, and doesn't
Publikováno v:
ITC
This paper presents solutions to reduce measurement error and test time in an AC characteristic test of a source-synchronous device. In order to realize such a solution, we developed a multi strobe circuit which detects a phase difference between out
Autor:
Takehiko Nomura, Toshiyuki Okayasu, Yusuke Hayase, Hajime Mori, Atsushi Ono, Daisuke Watanabe
Publikováno v:
SPIE Proceedings.
High-density parallel optical interconnection is introduced as a solution to solve transmission bottlenecks in memory test system. A protocol-free parallel optical module capable of transmitting from DC to 34.1 Gbps (4.267 Gbps × 8 ch) has been deve
Autor:
Satoshi Sudou, Toshiyuki Okayasu, Kazuhiro Yamamoto, Masakatsu Suda, S. Kantake, Daisuke Watanabe
Publikováno v:
ITC
This paper presents solutions to realize a high-speed, high-precision CMOS timing generator for a 4.266-Gbps memory test system. In order to realize such a timing generator, we developed a 1.066-GHz CMOS timing generator circuit using a high-speed di
Autor:
Daisuke Watanabe, Kazuhiro Yamamoto, S. Kantake, Masakatsu Suda, Satoshi Sudou, Toshiyuki Okayasu
Publikováno v:
ISSCC
A high-speed high-precision dynamic arbitrary timing generator, fabricated in a 0.18mum CMOS process, for >4GHz ATE applications is demonstrated. It exhibits a maximum operating frequency of 1.066 and 4.266GHz (multiplexed mode), a timing resolution