加速老化试验后LTCC基板高频区的稳定性

Proceedings of the 2014 37th International Spring Seminar on Electronics Technology Pub Date : 2014-05-07 DOI:10.1109/ISSE.2014.6887597

Tibor Rovensky, A. Pietrikova, K. Ruman, I. Vehec

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引用次数: 5

摘要

本文的目的是研究加速老化对微带结构低温共烧陶瓷(LTCC)衬底介电性能的影响。根据Pietrikova等人(2013)之前的工作，使用两种不同的LTCC衬底类型(DuPont GreenTape 951和DuPont GreenTape 9K7)设计和制造了2.4 GHz至2.5 GHz窄带陷波滤波器，以最大限度地减少Wi-Fi信号对超宽带雷达系统的影响。所有过滤器都暴露在温度载荷下，在加速老化试验的每个部分之前和之后进行测量。选择两种老化试验:HTOL(高温工作寿命)和温度循环试验。LTCC衬底的稳定性来源于矢量网络分析仪(VNA)在12 GHz范围内测量得到的频域特性变化。结果表明，在HF和热应力载荷下，DuPont GreenTape 951和DuPont GreenTape 9K7的稳定性无显著差异。

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Stability of LTCC substrates in high frequency area after accelerated aging tests

Aim of this paper is to investigate influence of accelerated ageing on dielectric properties of Low Temperature Co-fired Ceramic (LTCC) substrates with microstrip structure. According to the previous work of Pietrikova et. al (2013), narrow-band notch filter from 2.4 GHz to 2.5 GHz, for minimalizing impact of Wi-Fi signal on UWB radar systems, was designed and fabricated using two different LTCC substrates' types (DuPont GreenTape 951 and DuPont GreenTape 9K7). All filters were exposed to temperature loads, measured before and after each part of accelerated aging tests. Two types of aging test were chosen: “HTOL” (High Temperature Operation Life) and temperature cycling test. LTCC substrates' stability were derived from the changes in frequency domain characteristic obtained from measurements by Vector Network Analyser (VNA) up to 12 GHz. Results shown that there is no significant difference in stability of DuPont GreenTape 951 and DuPont GreenTape 9K7 loaded by HF and thermal stress.

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Proceedings of the 2014 37th International Spring Seminar on Electronics Technology

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