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Ultra-High-Speed GaAs MESFET IC Modules Using Flip Chip Bonding

Hiroyuki KIKUCHI, Hideki TSUNETSUGU, Makoto HIRANO, Satoshi YAMAGUCHI, Yuhki IMAI

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Summary :

This paper describes a distributed amplifier IC module and a distributed 1 : 2 signal distributor IC module for 40-Gbit/s optical transmission systems. These ICs were designed by the distributed circuit and inverted-microstrip-line design technique and fabricated using 0. 1-µm-gate-length GaAs MESFETs with a multilayer interconnection structure. These were mounted on a thin film multilayer substrate in a chip-size-cavity package by means of a flip-chip-bonding technique that uses transferred microsolder bumps. The amplifier module achieved a 3-dB bandwidth of more than 50 GHz and a gain of 8 dB. The 3-dB bandwidth of a 1 : 2 signal distributor module was 40 GHz and the loss was 2 dB. These modules were demonstrated at 40 Gbit/s and clear eye openings were confirmed.

Publication
IEICE TRANSACTIONS on Electronics Vol.E82-C No.3 pp.475-482
Publication Date
1999/03/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Ultra-High-Speed IC and LSI Technology)
Category
Compound Semiconductor Devices

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