エレクトロニクス実装学会誌
Online ISSN : 1884-121X
Print ISSN : 1343-9677
ISSN-L : 1343-9677
ミリ波帯パッケージへの液晶ポリマーの適用
小倉 洋高橋 和晃田中 真治福武 素直
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2003 年 6 巻 7 号 p. 588-591

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The high frequency characteristics of liquid crystal polymer (LCP) have been investigated using a microstrip line (MSL) on a silicon (Si) substrate to verify the possibility of the application of the material in millimeter-wave packaging. A LCP film was fabricated using a direct-bonding technique on Si substrate. Measured characteristics of insertion loss are compared between a LCP film and a SiO2 film. The loss of the LCP-MSL is approximately 1/2 of that of the SiO2-MSL. Moreover, a GaAs low noise amplifier (LNA) microwave monolithic integrated circuit (MMIC) was fabricated using a flipchip bonding technique on a LCP substrate to demonstrate an application for a millimeter-wave package. The measured output gain of the LNA package is over 11dB. The millimeter-wave LCP package is a promising technology in realizing low cost millimeter-wave radio equipment.

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