کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1483055 1510527 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dielectric properties and crystalline characteristics of borosilicate glasses
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Dielectric properties and crystalline characteristics of borosilicate glasses
چکیده انگلیسی

Packaging substrates play a significant role in the development of large-scale integrated circuit. Low dielectric constant materials are expected in order to reduce the time delay of signal propaganda. On the other hand, sintering aid is required for low temperature co-firing process. Glass/ceramic composite system is considered one of the most promising candidates because of its both low dielectric constant and low temperature co-firable properties. Borosilicate glass is an important component of the substrate material as a sintering agent. To reduce the firing temperature, some of the alkali metal or bivalent metal oxides must be introduced, often at the expense of dielectric properties as well as crystallization behavior. The paper has designed two groups of glasses doped with different metal oxides. Dielectric constant and loss, crystalline characteristics as well as softening point and thermal expansion coefficient of these glasses have been studied. The glass system is characterized with lower dielectric constant (5–6) and loss (10−2–10−3), higher electric resistivity (1012−13 Ω cm). Softening point of the glass is also satisfactory for low temperature co-firing process. Furthermore, the glass shows a severe tendency of phase separation and followed by crystallization, with cristobalite as the main crystal.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 354, Issues 12–13, 15 February 2008, Pages 1128–1132
نویسندگان
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