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A low-cost and low-resistance chip resistor paste

A resistance paste, low resistance technology, applied in conductive materials dispersed in non-conductive inorganic materials, etc., can solve the problems of increasing the cost of paste and low corporate profits, and achieve short-term overload capacity improvement, cost reduction, The effect of expanding the scope of application

Active Publication Date: 2022-03-29
西安宏星电子浆料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is well known that the price of palladium is twice that of platinum and three times that of ruthenium. The silver-palladium precious metal contained in the conductive phase with low resistance (square resistance 0.1±30%Ω / □) greatly increases the cost of the paste. lead to low corporate profits

Method used

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  • A low-cost and low-resistance chip resistor paste
  • A low-cost and low-resistance chip resistor paste
  • A low-cost and low-resistance chip resistor paste

Examples

Experimental program
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Embodiment 1

[0022] Take carbon nanotube-loaded platinum-ruthenium alloy nanoparticles (platinum-ruthenium alloy nanoparticles loading capacity 40%) 15g, silver powder 35g, glass powder 3g, manganese dioxide 2g, niobium pentoxide 2g, titanium dioxide 3g, organic carrier 40g, Stir evenly with a glass rod and place it for more than 1 hour to complete the infiltration, and then roll it with a three-roll machine to make the fineness ≦5 μm to obtain a resistance slurry.

Embodiment 2

[0024] Take carbon nanotube-loaded platinum-ruthenium alloy nanoparticles (platinum-ruthenium alloy nanoparticles loading capacity 50%) 15g, silver powder 35g, glass powder 3g, manganese dioxide 2g, niobium pentoxide 2g, titanium dioxide 3g, organic carrier 40g, Stir evenly with a glass rod and place it for more than 1 hour to complete the infiltration, and then roll it with a three-roll machine to make the fineness ≦5 μm to obtain a resistance slurry.

Embodiment 3

[0026] Take carbon nanotube-supported platinum-ruthenium alloy nanoparticles (platinum-ruthenium alloy nanoparticles loading capacity 60%) 15g, silver powder 35g, glass powder 3g, manganese dioxide 2g, niobium pentoxide 2g, titanium dioxide 3g, organic carrier 40g, Stir evenly with a glass rod and place it for more than 1 hour to complete the infiltration, and then roll it with a three-roll machine to make the fineness ≦5 μm to obtain a resistance slurry.

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Abstract

The invention discloses a low-cost and low-resistance chip resistance paste, which is composed of a conductive phase, glass powder, inorganic additives, and an organic carrier, wherein the conductive phase is carbon nanotube-loaded platinum-ruthenium alloy nanoparticles and silver powder, two Those who account for the weight percentage of resistance slurry are 10%~20%, 30%~40%; In the described carbon nanotube-loaded platinum-ruthenium alloy nanoparticles, the weight of carbon nanotubes is 100%, platinum-ruthenium The loading of alloy nanoparticles is 40%-60%. The present invention uses carbon nanotubes to support platinum-ruthenium alloy nanoparticles instead of palladium powder, which greatly reduces the cost of low-resistance chip resistor paste, and not only does not affect the resistance value, temperature coefficient, electrostatic discharge and encapsulation of the resistor paste Change rate and other performance, and greatly improved its short-term overload capacity.

Description

technical field [0001] The invention belongs to the technical field of resistance paste, and in particular relates to a low-cost and low-resistance chip resistance paste. Background technique [0002] Thick film chip resistor paste is an electronic functional material integrating materials, chemical industry, metallurgy and electronic technology. It is the basic material for hybrid integrated circuits, surface mount technology, resistor networks, sensitive components and various discrete electronic components. Widely used in many fields such as aerospace, measurement and control systems, communication systems, medical equipment, hybrid integrated circuits and civilian electronic products. [0003] Chip resistor paste is composed of conductive phase, glass phase, inorganic additives and organic carrier. The specifications and sizes of the chip resistors prepared by it are 1206, 0805, 0603, 0402, 0201, 01005 and other models; the square resistance ranges from 0.1 Ω~10MΩ, with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/16H01B1/18H01B1/22H01B1/24
CPCH01B1/16H01B1/18H01B1/22H01B1/24
Inventor 兰金鹏张莉莉周宝荣张帅
Owner 西安宏星电子浆料科技股份有限公司