Coaxial SMD Module Connector for High-Speed MCM

Shinichi SASAKI; Tohru KISHIMOTO; Nobuaki SUGIURA

Coaxial SMD Module Connector for High-Speed MCM

Shinichi SASAKI, Tohru KISHIMOTO, Nobuaki SUGIURA

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This paper describes a trial coaxial surface mounted connector for PGA-type high-speed multichip modules (MCM). An MCM connector is needed to ensure testability and connection reliability of MCMs mounted on a printed circuit board. Our connector consists of a coaxial elements, a common ground housing made of conductive resin, and a ground contact spring plate. It has 68 signal contacts. We investigated the performance of this connector by experiment and simulation. Its insertion force is only about 53 gf per signal pin. The characteristic impedance is from 45.6 Ω to 61.4 Ω. The average resistance between two contacts is 28 mΩ with a deviation of less than plus or minus 5 mΩ. The insertion is -0.4 dB at 1.0 GHz. Crosstalk noise is less than 1.2%. This prototype connector can transmit pulses of up to 1.2 Gb/s, showing that it is applicable to high-speed MCMs.

Publication: IEICE TRANSACTIONS on Electronics Vol.E77-C No.10 pp.1575-1580

Publication Date: 1994/10/25

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Type of Manuscript: Special Section PAPER (Special Issue on Recent Electromechanical Devices)

Category: Connectors: Optical and Conventional

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Shinichi SASAKI, Tohru KISHIMOTO, Nobuaki SUGIURA, "Coaxial SMD Module Connector for High-Speed MCM" in IEICE TRANSACTIONS on Electronics, vol. E77-C, no. 10, pp. 1575-1580, October 1994, doi: .
Abstract: This paper describes a trial coaxial surface mounted connector for PGA-type high-speed multichip modules (MCM). An MCM connector is needed to ensure testability and connection reliability of MCMs mounted on a printed circuit board. Our connector consists of a coaxial elements, a common ground housing made of conductive resin, and a ground contact spring plate. It has 68 signal contacts. We investigated the performance of this connector by experiment and simulation. Its insertion force is only about 53 gf per signal pin. The characteristic impedance is from 45.6 Ω to 61.4 Ω. The average resistance between two contacts is 28 mΩ with a deviation of less than plus or minus 5 mΩ. The insertion is -0.4 dB at 1.0 GHz. Crosstalk noise is less than 1.2%. This prototype connector can transmit pulses of up to 1.2 Gb/s, showing that it is applicable to high-speed MCMs.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e77-c_10_1575/_p

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@ARTICLE{e77-c_10_1575,
author={Shinichi SASAKI, Tohru KISHIMOTO, Nobuaki SUGIURA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Coaxial SMD Module Connector for High-Speed MCM},
year={1994},
volume={E77-C},
number={10},
pages={1575-1580},
abstract={This paper describes a trial coaxial surface mounted connector for PGA-type high-speed multichip modules (MCM). An MCM connector is needed to ensure testability and connection reliability of MCMs mounted on a printed circuit board. Our connector consists of a coaxial elements, a common ground housing made of conductive resin, and a ground contact spring plate. It has 68 signal contacts. We investigated the performance of this connector by experiment and simulation. Its insertion force is only about 53 gf per signal pin. The characteristic impedance is from 45.6 Ω to 61.4 Ω. The average resistance between two contacts is 28 mΩ with a deviation of less than plus or minus 5 mΩ. The insertion is -0.4 dB at 1.0 GHz. Crosstalk noise is less than 1.2%. This prototype connector can transmit pulses of up to 1.2 Gb/s, showing that it is applicable to high-speed MCMs.},
keywords={},
doi={},
ISSN={},
month={October},}

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TY - JOUR
TI - Coaxial SMD Module Connector for High-Speed MCM
T2 - IEICE TRANSACTIONS on Electronics
SP - 1575
EP - 1580
AU - Shinichi SASAKI
AU - Tohru KISHIMOTO
AU - Nobuaki SUGIURA
PY - 1994
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E77-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 1994
AB - This paper describes a trial coaxial surface mounted connector for PGA-type high-speed multichip modules (MCM). An MCM connector is needed to ensure testability and connection reliability of MCMs mounted on a printed circuit board. Our connector consists of a coaxial elements, a common ground housing made of conductive resin, and a ground contact spring plate. It has 68 signal contacts. We investigated the performance of this connector by experiment and simulation. Its insertion force is only about 53 gf per signal pin. The characteristic impedance is from 45.6 Ω to 61.4 Ω. The average resistance between two contacts is 28 mΩ with a deviation of less than plus or minus 5 mΩ. The insertion is -0.4 dB at 1.0 GHz. Crosstalk noise is less than 1.2%. This prototype connector can transmit pulses of up to 1.2 Gb/s, showing that it is applicable to high-speed MCMs.
ER -