ZnO-TiO2 series low-temperature co-burning ceramic material and preparation method thereof

Abstract

The invention relates to a microwave dielectric ceramic material and its preparation method, particularly relates to a zinc oxide-titanium dioxide system low temperature cofired ceramic material and its preparation method. The ceramic material uses zinc titanate and titanium dioxide as main crystal phase and zinc borosilicate glass as a flux. The product can be fired with silver electrode at 900DEG C, and has frequency temperature coefficient tf of 0+-10ppm/DEG C, dielectric constant of 24~35.3, and Q*f of 13000 GHz. The material solves the process problem of casting process and material problem of production of small size multilayer ceramic dielectric microwave Filter. The LTCC technology is used to manufacture multilayer ceramic dielectric microwave Filter with high performance, small size and good consistency and multilayer products like Balun, Antenna and Coupling. The invention also discloses a preparation method for zinc oxide-titanium dioxide system low temperature cofired ceramic material.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes an improved method called lithiated zirconia that uses specific elements like tin oxide instead of expensive metals. It allows for higher firing temperatures while maintaining consistently reliable results over time. Additionally, it improves the efficiency at producing multiple layer ceramics due to lower melting points compared to traditional methods. Overall, this new technique simplifies manufacturing processes and increases reliability during use.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving miniaturization and reducing costs associated with manufacturing microelectronics devices like filters for use at frequencies above 5GHz. Current methods involve producing these types of elements separately from their main body during fabrication, which can lead to increased complexity and cost over time due to the large number of steps involved. Therefore there needs an improved method called "one-step synthesis," where multiple parts needed together without requiring separate processing stages.

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