Thermistor slurry

Abstract

The invention discloses thermistor slurry which is prepared from the following components in parts by weight: 6-10 parts of a barium-containing flame-retardant temperature-resistant macromolecular polymer, 1-5 parts of copper and gold composite powder, 0.5-1 part of tributyl citrate, 0.5-1 part of cellulose nitrate, 30-35 parts of o-methyl novolac epoxy resin, 4-6 parts of a coupling agent, 20-30 parts of linear phenolic resin, 5-10 parts of lanthanum oxide microcrystalline glass powder, 5-10 parts of bismuth oxide microcrystalline glass powder and 1-5 parts of aluminum oxide. The thermistor slurry disclosed by the invention not only realizes the compound functions of flame retardance, heat resistance, aging resistance, heat radiation resistance, environmental protection and the like, but also can be used for improving the stability of the system.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a thermistor paste. Background technique [0002] Resistors are a commonly used electrical component with a wide range of applications, such as integrated circuits and chips. However, with the rapid development of integrated circuits and chips, current resistors have many shortcomings and cannot meet the needs of integration. Resistors Slurry has become a direction to solve this problem. [0003] As the main components of the resistance paste, it is usually composed of glass composition, conductive material, and organic vehicle. The purpose of including the glass composition is to adjust the resistance value and increase the adhesiveness of the paste. After printing the resistor paste on the substrate, it is sintered to form a thick film resistor with a thickness of about 5-20um, and in this resistor paste, ruthenium oxide and lead ruthenium oxide are usually used as conductive materi...

AI Technical Summary

Problems solved by technology

[0005] As one of the issues in the lead-free resistance paste, especially for high-resistance resistance paste, for example, there is a balance between temperature characteristics and withstand voltage characteristics. For example, adding it to the existing lead-based resistance paste The metal oxide used in the material is used to adjust the TCR. When the lead-free component is used as it is, since the resistance value changes due to voltage application compared with the lead-based component, it is difficult to achieve both TCR and STOL.