40 Gb/s analog IC chipset for optical receiver using SiGe HBTs

T. Masuda, K. Ohhata, E. Ohue, K. Oda, M. Tanabe, H. Shimamoto, T. Onai, K. Washio

Research output: Contribution to journalConference articlepeer-review

30 Citations (Scopus)


A self-aligned selective-epitaxial SiGe-based heterojunction bipolar transistor (HBT) is used to fabricate a 40 Gb/s optical receiver. The SiGe-based HBT provides low parasitic capacitance and high-frequency characteristics. 3.6fF collector capacitance and 0.6fF substrate capacitance at 5 V reverse bias voltage are obtained. The cutoff frequency and the maximum oscillation frequency of the transistors with an emitter area of 0.14×1.5 μm2 are 92 GHz and 108 GHz at 2 V collector-to-emitter bias, respectively. The early voltage of >100 V is suitable for analog circuits.

Original languageEnglish
Pages (from-to)314-315, 454
JournalDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Publication statusPublished - 1998 Jan 1
Externally publishedYes
EventProceedings of the 1998 IEEE 45th International Solid-State Circuits Conference, ISSCC - San Francisco, CA, USA
Duration: 1998 Feb 51998 Feb 7

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


Dive into the research topics of '40 Gb/s analog IC chipset for optical receiver using SiGe HBTs'. Together they form a unique fingerprint.

Cite this