Superconducting sampling measurement system for characterization of electronic packaging

Author

Aoyagi, Masahiro ; Sato, Hiroshi ; Nakagawa, Hiroshi ; Akoh, Hiroshi ; Toepfer, Hannes

Author_Institution

Electrotech. Lab., Ibaraki, Japan

fYear

2000

fDate

2000

Firstpage

139

Lastpage

142

Abstract

A superconducting sampling measurement system is a highly useful tool for analyzing ultrahigh speed electrical signals in cryogenic environments, due to a time resolution at ps levels with low current levels of μA. The digitizing sampling system is composed of a Josephson sampling circuit, digital delay line, feedback signal detection circuit and a computer. The Josephson sampling circuit is designed for ETL´s Nb-AlO_x-Nb junction technology. A TDR measurement method using a CPW flip-chip bonding technique is proposed. The theoretical spatial resolution is estimated to reach around a hundred μm

Keywords

aluminium compounds; circuit feedback; coplanar waveguides; delay lines; flip-chip devices; integrated circuit packaging; niobium; signal detection; signal processing equipment; signal sampling; superconducting integrated circuits; type II superconductors; CPW flip-chip bonding technique; Josephson sampling circuit; Josephson sampling circuit design; Nb-AlO-Nb; Nb-AlO_x-Nb junction technology; TDR measurement method; cryogenic environments; current level; digital delay line; digitizing sampling system; electronic packaging characterization; feedback signal detection circuit; spatial resolution; superconducting sampling measurement system; time resolution; ultrahigh speed electrical signal analysis; Cryogenics; Current measurement; Delay lines; Electric variables measurement; Feedback circuits; Sampling methods; Signal analysis; Signal resolution; Time measurement; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Performance of Electronic Packaging, 2000, IEEE Conference on.

Conference_Location

Scottsdale, AZ

Print_ISBN

0-7803-6450-3

Type

conf

DOI

10.1109/EPEP.2000.895512

Filename

895512