Kazuya MASU


A Sub-1mW Class-C-VCO-Based Low Voltage PLL with Ultra-Low-Power Digitally-Calibrated ILFD in 65nm CMOS
Sho IKEDA Sang_yeop LEE Tatsuya KAMIMURA Hiroyuki ITO Noboru ISHIHARA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/06/01
Vol. E97-C  No. 6  pp. 495-504
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
injection-locked frequency dividerphase-locked loopClass-C VCOCMOSlow supply voltage
 Summary | Full Text:PDF

Hypersphere Sampling for Accelerating High-Dimension and Low-Failure Probability Circuit-Yield Analysis
Shiho HAGIWARA Takanori DATE Kazuya MASU Takashi SATO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/04/01
Vol. E97-C  No. 4  pp. 280-288
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design,---,Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
design for manufacturingMonte Carlo methodimportance samplingSRAMprocess variationyieldnorm minimizationGaussian mixture modelsclusteringhypersphere sampling
 Summary | Full Text:PDF

State-Dependence of On-Chip Power Distribution Network Capacitance
Koh YAMANAGA Shiho HAGIWARA Ryo TAKAHASHI Kazuya MASU Takashi SATO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/01/01
Vol. E97-C  No. 1  pp. 77-84
Type of Manuscript:  PAPER
Category: Integrated Electronics
Keyword: 
CMOS logic circuitstate-dependent capacitance modelcapacitance measurementPDN-capacitanceparasitic capacitance
 Summary | Full Text:PDF

A Ring-VCO-Based Injection-Locked Frequency Multiplier with Novel Pulse Generation Technique in 65 nm CMOS
Sang_yeop LEE Norifumi KANEMARU Sho IKEDA Tatsuya KAMIMURA Satoru TANOI Hiroyuki ITO Noboru ISHIHARA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/10/01
Vol. E95-C  No. 10  pp. 1589-1597
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
injection locked frequency multiplierring VCOpulse injectionCMOS
 Summary | Full Text:PDF

RF CMOS Integrated Circuit: History, Current Status and Future Prospects
Noboru ISHIHARA Shuhei AMAKAWA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/02/01
Vol. E94-A  No. 2  pp. 556-567
Type of Manuscript:  INVITED PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
RFCMOStransceiverintegrated circuitMEMSfuture
 Summary | Full Text:PDF

Linear Time Calculation of On-Chip Power Distribution Network Capacitance Considering State-Dependence
Shiho HAGIWARA Koh YAMANAGA Ryo TAKAHASHI Kazuya MASU Takashi SATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/12/01
Vol. E93-A  No. 12  pp. 2409-2416
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Device and Circuit Modeling and Analysis
Keyword: 
capacitancepower distribution networkstate-dependencyintegrated circuit modelingelectromagnetic interference
 Summary | Full Text:PDF

A Universal Equivalent Circuit Model for Ceramic Capacitors
Koh YAMANAGA Shuhei AMAKAWA Kazuya MASU Takashi SATO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/03/01
Vol. E93-C  No. 3  pp. 347-354
Type of Manuscript:  Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration)
Category: 
Keyword: 
ceramic capacitormoment methodequivalent circuitinductance
 Summary | Full Text:PDF

A Time-Slicing Ring Oscillator for Capturing Time-Dependent Delay Degradation and Power Supply Voltage Fluctuation
Takumi UEZONO Kazuya MASU Takashi SATO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/03/01
Vol. E93-C  No. 3  pp. 324-331
Type of Manuscript:  Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration)
Category: 
Keyword: 
voltage measurementspatial voltage drop fluctuationprocess variationpower/signal integrity
 Summary | Full Text:PDF

Analytical Estimation of Path-Delay Variation for Multi-Threshold CMOS Circuits
Shiho HAGIWARA Takashi SATO Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/04/01
Vol. E92-A  No. 4  pp. 1031-1038
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Technologies Emerging Mainly from the 21st Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
device parameter variationMTCMOStiming analysisMonte-Carlo simulation
 Summary | Full Text:PDF

One-Shot Voltage-Measurement Circuit Utilizing Process Variation
Takumi UEZONO Takashi SATO Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/04/01
Vol. E92-A  No. 4  pp. 1024-1030
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Technologies Emerging Mainly from the 21st Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
voltage measurementprocess variationpower/signal integrity
 Summary | Full Text:PDF

2-Port Modeling Technique for Surface-Mount Passive Components Using Partial Inductance Concept
Koh YAMANAGA Takashi SATO Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/04/01
Vol. E92-A  No. 4  pp. 976-982
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Technologies Emerging Mainly from the 21st Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
ceramic capacitorinductanceimpedancepower distribution network
 Summary | Full Text:PDF

Tunable CMOS LNA Using a Variable Inductor for a Reconfigurable RF Circuit
Hirotaka SUGAWARA Kenichi OKADA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/02/01
Vol. E92-A  No. 2  pp. 401-410
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
reconfigurable RFvariable inductorLNAMEMS
 Summary | Full Text:PDF

Layout-Aware Compact Model of MOSFET Characteristics Variations Induced by STI Stress
Kenta YAMADA Takashi SATO Shuhei AMAKAWA Noriaki NAKAYAMA Kazuya MASU Shigetaka KUMASHIRO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/07/01
Vol. E91-C  No. 7  pp. 1142-1150
Type of Manuscript:  PAPER
Category: Semiconductor Materials and Devices
Keyword: 
STIstressmodelingSPICElayout-aware
 Summary | Full Text:PDF

Application of Correlation-Based Regression Analysis for Improvement of Power Distribution Network
Shiho HAGIWARA Takumi UEZONO Takashi SATO Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/04/01
Vol. E91-A  No. 4  pp. 951-956
Type of Manuscript:  Special Section PAPER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
voltage drop analysispower distribution networkcorrelation coefficientmultiple regression
 Summary | Full Text:PDF

An Evaluation Method of the Number of Monte Carlo STA Trials for Statistical Path Delay Analysis
Masanori IMAI Takashi SATO Noriaki NAKAYAMA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/04/01
Vol. E91-A  No. 4  pp. 957-964
Type of Manuscript:  Special Section PAPER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
SSTASTAMonte Carlo STAtiming analysisranking
 Summary | Full Text:PDF

Reconfigurable RF CMOS Circuit for Cognitive Radio
Kazuya MASU Kenichi OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 10-13
Type of Manuscript:  INVITED PAPER (Special Section on Cognitive Radio and Spectrum Sharing Technology)
Category: 
Keyword: 
CMOSreconfigurable RF circuitcognitive radio
 Summary | Full Text:PDF

Low-Loss Distributed Constant Passive Devices Using Wafer-Level Chip Scale Package Technology
Hiroyuki ITO Hideyuki SUGITA Kenichi OKADA Tatsuya ITO Kazuhisa ITOI Masakazu SATO Ryozo YAMAUCHI Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/03/01
Vol. E90-C  No. 3  pp. 641-643
Type of Manuscript:  LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
wafer-level chip scale packageRF CMOSpassive device
 Summary | Full Text:PDF

Statistical Modeling of a Via Distribution for Yield Estimation
Takumi UEZONO Kenichi OKADA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/12/01
Vol. E89-A  No. 12  pp. 3579-3584
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Interconnect
Keyword: 
via distributionyield estimationwire length distribution
 Summary | Full Text:PDF

RF Passive Components Using Metal Line on Si CMOS
Kazuya MASU Kenichi OKADA Hiroyuki ITO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/06/01
Vol. E89-C  No. 6  pp. 681-691
Type of Manuscript:  INVITED PAPER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
Si CMOSon-chip passiveinterconnecttransmission lineinductorvariable inductorreconfigurable RF circuit
 Summary | Full Text:PDF

Wire Length Distribution Model for System LSI
Takanori KYOGOKU Junpei INOUE Hidenari NAKASHIMA Takumi UEZONO Kenichi OKADA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/12/01
Vol. E88-A  No. 12  pp. 3445-3452
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Interconnect
Keyword: 
wire length distributioncore utilizationSoClayout-area allocation
 Summary | Full Text:PDF

Evaluation of X Architecture Using Interconnect Length Distribution
Hidenari NAKASHIMA Naohiro TAKAGI Junpei INOUE Kenichi OKADA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/12/01
Vol. E88-A  No. 12  pp. 3437-3444
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Interconnect
Keyword: 
X architectureinterconnect length distributionILDRent's ruleall-directional interconnect
 Summary | Full Text:PDF

Circuit Performance Prediction Considering Core Utilization with Interconnect Length Distribution Model
Hidenari NAKASHIMA Junpei INOUE Kenichi OKADA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/12/01
Vol. E88-A  No. 12  pp. 3358-3366
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Prediction and Analysis
Keyword: 
interconnectlayout compactionphysical designplacementcore utilization
 Summary | Full Text:PDF

Wide Tuning Range LC-VCO Using Variable Inductor for Reconfigurable RF Circuit
Yoshiaki YOSHIHARA Hirotaka SUGAWARA Hiroyuki ITO Kenichi OKADA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/02/01
Vol. E88-A  No. 2  pp. 507-512
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
VCOoscillatorvariable inductorreconfigurable RF circuit
 Summary | Full Text:PDF

High Density Differential Transmission Line Structure on Si ULSI
Hiroyuki ITO Kenichi OKADA Kazuya MASU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/06/01
Vol. E87-C  No. 6  pp. 942-948
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
differential transmission lineSi ULSIcrosstalkbus lineinterconnect density
 Summary | Full Text:PDF

Low Power Current-Cut Switched-Current Matched Filter for CDMA
Kenji TOGURA Hiroyuki NAKASE Koji KUBOTA Kazuya MASU Kazuo TSUBOUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/02/01
Vol. E84-C  No. 2  pp. 212-219
Type of Manuscript:  Special Section PAPER (Special Issue on Low-Power High-Performance VLSI Processors and Technologies)
Category: 
Keyword: 
switched-current (SI) circuitmatched filtercode division multiple access (CDMA)current-cut
 Summary | Full Text:PDF

Full-Duplex Asynchronous Spread Spectrum Modem Using a SAW Convolver for 2.4-GHz Wireless LAN
Hiroyuki NAKASE Akihiko NAMBA Kazuya MASU Kazuo TSUBOUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/07/25
Vol. E77-B  No. 7  pp. 868-875
Type of Manuscript:  Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
Category: 
Keyword: 
spread spectrumSAW convolverasynchronous SS modemfull-duplexself jamming2.4-GHz wireless LAN
 Summary | Full Text:PDF

Three-Dimensional Simulation of Low-Temperature Operation MOSFET's
You-Wen YI Kazuya MASU Kazuo TSUBOUCHI Nobuo MIKOSHIBA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1991/06/25
Vol. E74-C  No. 6  pp. 1641-1647
Type of Manuscript:  Special Section PAPER (Special Issue on Device and Process Simulation for Ultra Large Scale Integration)
Category: 
Keyword: 
 Summary | Full Text:PDF