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A low-temperature sintering, silver electrode technology, applied in conductive materials, conductive materials, circuits, etc., can solve the problem that electrode paste is not suitable for sensitive resistance, and achieve good silver crystallization and stable electrical properties, good compactness, and small particle size distribution. Effect
Active Publication Date: 2010-04-28
GUANGDONG FENGHUA ADVANCED TECH HLDG
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[0014] A low-temperature sintered silver electrode paste, the formula of which is in accordance with No. 1-8 formulas in Table 1. After components fine-tuning, wet ball milling, sand milling, drying and other processes, a main material with good dispersibility and uniform composition can be obtained. The polymer resin described in the formula is one or more of ethyl cellulose, hydrogenated rosin resin, polyethylene, polyurethane resin; the solvent is one or more of alcohol solvent, aromatic hydrocarbon solvent or ester solvent Several kinds; the composition of the organic carrier in the silver electrode paste by weight is 0.5-4wt% of polymer resin and 10-20wt% of alcohol solvent. The particle size of the nano silver powder is below 200nm, and the particle size of the flake silver powder is 15 μm. The glass formula selected in the formula is shown in 1-14 of Table 2. After mixing all materials evenly, use a three-roll mill to fully grind and roll to meet certain fineness and vi...
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Abstract
The invention discloses low-temperature sintering silver electrode slurry, comprising the following ingredients by weight percentage: 65-75wt percent of nanometer silver powder, 0-5wt percent of strip silver powder, 2-10wt percent of glass powder, 0.2-1.8wt percent of inorganic additives and 20-30wt percent of organic carriers. The glass powder is a ZnO-B2O3-SiO2-Bi2O3 glass system, comprising the following ingredients by weight percentage: 2-15wt percent of ZnO, 1-15wt percent of B2O3, 2-10wt percent of SIO2, 60-90wt percent of Bi1O3, 0-6wt percent of Al2O3, 0-2wt percent of SrO and 0-5wt percent of BaO. The silver electrode slurry is suitable for sensitive resistance electrode and has good dispersity, small size distribution and high inoxidizability.
Description
technical field [0001] The invention relates to an electronic paste, in particular to a low-temperature sintered silver electrode paste suitable for sensitive resistors. Background technique [0002] Sensitive resistors are inexpensive, cost-effective and widely used in mobile phones, VCD, DVD, audio, air conditioners, refrigerators, disinfection cabinets, microwave ovens and other household appliances and commercial appliances, automobiles, industrial instruments and other fields. Sensitive devices, as transistors, diodes, ICs, silicon controlled rectifiers and semiconductor switching elements, play the roles of overvoltage protection, surge absorption, noise elimination, equipment lightning protection, etc. in the circuits of household appliances. element. With the continuous development of the electronics industry, intelligence, informationization, lightness, smallness, and thinness are the development trends of the electronics industry, and new materials applied to elec...
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