Preparation method of low-current-noise high-resistance-value dispersive chip resistor slurry

A technology of resistance paste and high resistance value, which is applied in the direction of conductive materials dispersed in non-conductive inorganic materials, coating resistance materials, cable/conductor manufacturing, etc., and can solve problems such as cracking on the surface of sintered film and easy agglomeration of powder , to achieve good dispersion of resistance, improve the pass rate, and reduce the effect of powder mixing and agglomeration
CN112466585AActive Publication Date: 2021-03-09西安宏星电子浆料科技股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
西安宏星电子浆料科技股份有限公司
Publication Date
2021-03-09

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Abstract

The invention discloses a preparation method of low-current-noise high-resistance-value dispersive chip resistor paste, and the method comprises the following steps: respectively carrying out surfacetreatment on a conductive phase, glass powder and an inorganic additive powder material by using a small-molecular alkynediol surfactant, adding the materials into an organic carrier, and preparing the resistor paste with the fineness of less than or equal to 5 [mu]m by using a three-roller machine, wherein the small-molecular alkynediol surfactant is 2, 5-dimethyl-3-hexyne-2, 5-diol, 2, 4, 7, 9-tetramethyl-5-decyne-4, 7-diol or 3, 6-dimethyl-4-octyne-3, 6-diol. According to the invention, a small molecular alkynediol surfactant (relatively low in boiling point, volatile and non-decomposable)is adopted to carry out surface treatment on powder in the chip resistor slurry, so that the powder agglomeration phenomenon is greatly reduced, and the chip resistor prepared from the chip resistor slurry is compact in surface and free of cracking, pinholes and other undesirable phenomena; meanwhile, the outstanding advantages of low current noise and good resistance dispersity are achieved.
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Description

technical field

[0001] The invention belongs to the technical field of resistance paste, and in particular relates to a method for preparing a sheet type resistance paste with low current noise and good resistance value dispersion. Background technique

[0002] In the 21st century, people are inseparable from electronic products, and cannot imagine life without the Internet and smart electronic products. At present, light, small and thin has become the mainstream development trend of electronic products, which requires electronic components to be as small as possible while improving performance. Resistors, as functional components, play a decisive role in the stable operation of the entire circuit. Traditional resistor pastes have long been unable to meet the requirements, and these markets are currently occupied by chip resistor pastes developed by DuPont of the United States and Sumitomo of Japan.

[0003] Like the traditional resistor paste, the chip resistor paste is al...

Claims

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