Stability control technology for resistance value of chip resistor paste

In the electronics industry, the stability of the resistance value of chip resistor paste is crucial. The stability of resistance value not only affects the performance of the circuit, but also relates to the reliability and lifespan of the entire electronic product. This article will explore how to control the stability of the resistance value of chip resistor paste, and introduce the concept of Advanced Institute (Shenzhen) Technology Co., LtdYB5302 chip resistor paste from Yanbo brandAs an example for analysis.

1、 Factors affecting the stability of resistance values

1. Formula and components:
   • The formula of the resistance paste has a direct impact on the stability of the resistance value. A reasonable formula can ensure that the resistance paste maintains a stable resistance value during preparation and use.
   • For example, a typical formula for photosensitive thick film resistor paste includes 25-35 parts of organic carrier, 1-5 parts of glass powder, 50-70 parts of modified ruthenium oxide powder, 1-5 parts of palladium powder, and 1-5 parts of silver powder. Among them, the composition and proportion of glass powder are particularly important for the stability of resistance values.
2. Preparation process:
   • The preparation process has a significant impact on the stability of the resistance value of the resistance paste. During the preparation process, factors such as temperature, time, and stirring speed can all affect the uniformity and stability of the slurry.
   • For example, when preparing photosensitive thick film resistor paste, it is necessary to strictly control the mass ratio of glass powder to modified ruthenium oxide powder at 1:15-40 to ensure good diffusion uniformity and resistance stability of the resistor paste.
3. Environmental temperature:
   • Changes in environmental temperature can lead toresistor pasteThe resistance value has changed. In high temperature environments, the resistance value of the resistance paste may decrease, thereby affecting the performance of the circuit.
   • Therefore, in circuits operating in high temperature environments, resistor pastes with higher rated power and high temperature resistance should be selected.

2、 Performance analysis of YB5302 chip resistor paste from Yanbo brand

Advanced Institute (Shenzhen) Technology Co., LtdThe YB5302 chip resistor paste produced by Yanbo brand exhibits excellent stability in resistance value. The following is a specific analysis of its performance:

1. Working temperature range:
   • The working temperature range of YB5302 chip resistor paste from Yanbo brand is 25 ℃, with a viscosity of 100-200Pa. s, and it has good printability and process stability.
2. Power bearing capacity:
   • With a safety factor of 1.5, the actual power bearing capacity of YB5302 chip resistor paste from Yanbo brand exceeds 20% of its rated power, while other brands only have around 10%.
   • Through experimental measurements, under the same current, the power loss of YB5302 chip resistor paste from Yanbo brand is about 10% lower than other brands.
3. Stability of resistance value:
   • YB5302 chip resistor paste from Yanbo brand has excellent resistance stability. By optimizing the formula and preparation process, the slurry can maintain stable resistance values under different environmental conditions.

3、 Control measures for resistance stability

1. Optimize formula:
   • By adjusting the proportion of components in the formula, such as increasing the content of glass powder or changing the type and proportion of conductive powder, the stability of the resistance value of the resistance paste can be improved.
2. Improve the preparation process:
   • Strictly control parameters such as temperature, time, and stirring speed during the preparation process to ensure the uniformity and stability of the slurry.
   • The use of advanced preparation equipment and processes, such as vacuum stirring and ultrasonic dispersion, can further improve the stability of the resistance value of the resistance slurry.
3. Choose the appropriate resistor paste:
   • Choose the appropriate one based on the working conditions and requirements of the circuitresistor pasteFor example, in circuits operating in high temperature environments, resistor pastes with higher rated power and high temperature resistance should be selected.
4. Optimize circuit design:
   • By optimizing circuit design, such as adding heat dissipation measures, reducing current density, etc., the range of resistance value variation can be reduced, and the stability and reliability of the circuit can be improved.

4、 Conclusion

The stability of resistance value is one of the important performance indicators of chip resistor paste. By optimizing the formula, improving the preparation process, selecting suitable resistance paste, and optimizing circuit design, the stability of the resistance value of the resistance paste can be effectively controlled. The YB5302 chip resistor paste from Advanced Institute (Shenzhen) Technology Co., Ltd. has been widely used and recognized in the electronics industry due to its excellent performance and stability.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.