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2001 Fiscal Year Final Research Report Summary

Research of Combination RF/Analog/Digital Global Integration technology

Research Project

Project/Area Number 11305026
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 電子デバイス・機器工学
Research InstitutionTohoku University

Principal Investigator

TSUBOUCHI Kazuo  Tohoku Univ., RIEC, Professor, 電気通信研究所, 教授 (30006283)

Co-Investigator(Kenkyū-buntansha) NAKASE Hiroyuki  Tohoku Univ., RIEC, Research Associate, 電気通信研究所, 助手 (60312675)
Project Period (FY) 1999 – 2001
Keywords3D System on a chip / RF / Analog / Digital / All digital modem / Vertical bus line / Flip chip bonding / Au-Au contact
Research Abstract

In this research, we have investigated Si CMOS based mixed signal system LSI toward RF-CMOS system on a chip (SOC) for mobile terminal of next generation. Basic components such as FFT circuit with low power operation, SAW device, RF CMOS circuit, and low power digital LSI are studied. Especially, significant results about Si RF CMOS power amplifier, all digital 1-chip modem and packaging technology for 3D system chip have been obtained. We have proposed and confirmed the Si RF CMOS power amplifier operation using B-class push-pull construction with optimum design of n/p-MOSSFET. The power efficiency is more than 50 % and ACPR is less than -33dBc, which have been matched with W-CDMA. All digital 1-chip modem has been implemented with the area of 150x150 um^2. The divided digital clock has been used for RF carrier. The transmission performance with 1 dB degradation from theoretical value has been measured using Si LSI, which has been fabricated using 0.25 um Si process. We proposed the new concept of 3D package and vertical bus line with delay time limitation control method. Contact strength using flip-chip bonding as a basic flip-chip mounting technology has been evaluated. We have experimentally confirmed that Au-Au contact is the best solution for flip-chip bonding.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] Kazuo Tsubouchi: "A new concept of 3-dimentional multilayer-stacked system-in-package for software-defined-radio"IEICE Transaction on Electronics. vol.E84-C,no.12. 1730-1734 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Yokoyama: "A High-E. ciency CMOS Class-B Push-Pull Power Amplifier for Code-Devision-Multiple-Access Cellular System"Japanese Journal of Applied Physics. Vol.39,Part1,No.4B. 2463-2467 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kazuo Tsubouchi, et al.: "A new concept of 3-dimentional multilayer-stacked system-in-package for software-defined-radio"IEICE Transaction on Electronics. vol.E84-C, no.12. 1730-1734 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Yokoyama et al.: "A High-E.ciency CMOS Class-B Push-Pull Power Amplifier for Code-Devision-Multiple-Access Cellular System"Japanese Journal of Applied Physics. Vol.39, Part1, No.4B. 2463-2467 (2000)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2003-09-17  

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