High-bending-strength low-temperature co-fired ceramic material for microwave substrate and preparation method of high-bending-strength low-temperature co-fired ceramic material

Abstract

The invention relates to the field of low-temperature co-fired ceramics, in particular to a high-bending-strength low-temperature co-fired ceramic material for a microwave substrate and a preparation method of the high-bending-strength low-temperature co-fired ceramic material. The high-bending-strength low-temperature co-fired ceramic material comprises KBSL glass, LCBSAZ glass and alpha-Al2O3; the mass ratio of the KBSL glass to the LCBSAZ glass to the alpha-Al2O3 is (32 to 38): (12 to 18): 50. The product can be applied to the high-bending-strength microwave substrate, has the characteristics that the raw materials are common and easy to buy, the preparation method has good process tolerance and the like, meets the environmental protection requirements of green energy conservation, carbon neutralization and the like, and has good industrial application prospects; the method is expected to be applied to many fields of communication, aerospace, military, microwave-radio frequency device application, automobile electronic devices and the like on a large scale.

Description

technical field [0001] The invention relates to the field of low-temperature co-fired ceramics, in particular to a high-bending-strength low-temperature co-fired ceramic material for microwave substrates and a preparation method thereof. Background technique [0002] Microwave substrates prepared by low-temperature co-fired ceramics (LTCC) have extremely high electrical reliability and temperature adaptability in aerospace, aviation, military and some special environments. In recent years, they have also expanded civilian applications such as antennas and automotive electronics. Application prospects, the development of 5G high frequency and high speed also has immeasurable potential. [0003] However, with the further expansion of the trade war between my country and the West, especially the technology lock-throat strategy adopted by the United States and other Western countries in terms of large-scale integrated circuits, the importance of independent research and developm...

AI Technical Summary

Problems solved by technology

[0004] On the other hand, although traditional low temperature co-fired ceramic (LTCC) materials have been developed for decades, there are more and more material systems, and most of the processes are becoming more mature However, microwave substrates made of traditional low-temperature co-fired ceramic (LTCC) materials still have unavoidable problems such as poor mechanical properties and small process tolerances. Usually, there is a seesaw effect in material research and development and design. To achieve an optimized solution It can only be a matter of emphasis and trade-offs

Images