Resistance paste

Abstract

The invention discloses resistance paste. According to the recipe, the resistance paste comprises, by mass, 1-5 parts of flame-retardant temperature-resistant high-molecular polymer containing boron, 0.5-2 parts of superfine mica powder, 0.5-1 part of a fluid flatting agent, 0.5-1 part of a solid thixotropic agent, 10-15 parts of graphite powder, 3-5 parts of superfine base metal alloy powder conductive filler, 2-3 parts of calcium oxide, 2-3 parts of barium oxide, 1-3 parts of silicon oxide, 10-15 parts of adhesive and 2-3 parts of ruthenium oxide pyrochlore. The resistance paste has the composite functions of flame retarding, heat resisting, ageing resisting, thermal radiation resisting and environment protecting, the stability of a system is improved, the thermal radiation efficiency is excellent, calorific power is large, temperature resistance is high, and the energy-saving effect is remarkable. The test analysis shows that the performance of a prepared resistor is good, the process requirement of the method is low, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a resistance 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.