Low-loss and high-binding-force microwave ceramic silver paste and preparation method thereof
A technology of microwave ceramics and bonding force, which is applied in the direction of waveguide devices, cable/conductor manufacturing, conductive materials dispersed in non-conductive inorganic materials, etc., can solve the problems of ceramic crystal structure relaxation, high-frequency dielectric loss increase, increase Relaxed polarization loss and other problems, to achieve the effect of improving adhesion strength, reducing high-frequency dielectric loss, and reducing relaxed polarization loss
Pending Publication Date: 2021-08-20
浙江奕成科技有限公司
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Problems solved by technology
[0005] To avoid Bi 3+ Cause relaxation of the ceramic crystal structure, increase the relaxation polarization loss, and cause the problem of increasing high-frequency dielectric loss. This application provides a low-loss, high-binding microwave ceramic silver paste and its preparation method
Method used
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Effect test
preparation example 1
[0046] Preparation of organic binder:
[0047] The ethylcellulose 4g, diethyl ether 18g, and the inorganic additive 0.6 g were stirred at 80 ° C, and the dissolution time was 240 min, and the organic binder was prepared.
preparation example 2
[0049] Preparation of organic binder:
[0050] The difference from the preparation example 1 is that rosin isometric is alternative to ethylcellulose.
preparation example 3
[0052] Preparation of organic binder:
[0053] The difference from the preparation example 1 is that the acrylic resin isometric is substituted with ethylcellulose.
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Abstract
The invention relates to low-loss and high-binding-force microwave ceramic silver paste and a preparation method thereof. The low-loss and high-binding-force microwave ceramic silver paste is prepared from the following raw materials: a silver powder and a glass powder, the glass powder is a ZnO-B2O3-SiO2-Al2O3-TiO2 devitrified glass system, and the mass percent of TiO2 in the glass powder is 0.1-30%; and an organic binder and an additive are included. According to the preparation method of the low-loss and high-binding-force microwave ceramic silver paste, the method comprises the following steps: weighing the silver powder, an inorganic binder, the organic binder and the additive according to the required mass percentage, mixing and grinding to prepare conductive silver paste. The filter prepared by the silver paste prepared by the scheme has the characteristics of low loss and high binding force, and a measured average insertion loss is 0.98 db in the range of 2515-2575 GHz.
Description
Technical field [0001] The present application relates to the field of 5G filters, and more specifically, it relates to a low loss, high binding force microwave ceramic silver slurry and preparation method thereof. Background technique [0002] The ceramic medium filter has the advantages of small size, light weight, small loss, and large Q value, and the application in 5G domain has an absolute advantage, gradually become mainstream of the filter industry. Conductive silver paste is one of the key materials necessary for filter metallization, and the conductive silver pulp is electrically conductive and the density of the conductive layer formed by the conductive silver paste has an important effect on the performance of the filter. In addition to the filter media and the quality factor Q value of ceramic itself, good consistency, high density, high adhesion, and good electrical conductivity are important ways affecting the insertion loss of the filter. [0003] The metallized s...
Claims
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IPC IPC(8): H01B1/16H01B1/22H01B13/00H01P1/20
CPCH01B1/16H01B1/22H01B13/00H01P1/20
Inventor 陈立桥邵奕兴
Owner 浙江奕成科技有限公司
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