Discussion on viscosity control technology of LTCC through-hole gold paste

1、 Introduction

With the development of electronic products towards miniaturization and multifunctionality, LTCC technology has been widely used due to its advantages such as high-density assembly and good high-frequency characteristics. Among them,Through-hole gold pasteAs a key material for implementing circuit interconnection, the stability and controllability of its viscosity are important factors in ensuring processing quality and yield.

2、 Factors affecting the viscosity of gold paste

1. Composition ratio: The gold paste is mainly composed of metal powder, glass material, and organic carrier. The proportion of different components directly affects the physical properties of the slurry, including viscosity.
2. Temperature changes: Changes in ambient temperature can cause organic matter in the gold paste to expand or contract, thereby altering its viscosity.
3. Mixing time and intensity: Proper mixing helps to evenly distribute the components, but excessive mixing may damage the structure between particles, leading to a decrease in viscosity.
4. Storage conditions: Long term storage or improper storage conditions may cause problems such as delamination and hardening of the gold paste, affecting its viscosity.

3、 Methods for viscosity control

In order to ensure that the slurry has a suitable viscosity to meet the production process requirements, the following measures can be taken:

• Accurate ratio: Adjust the optimal mixing ratio of metal powder, glass material, and organic carrier according to specific application scenarios to ensure that the gold paste has sufficient fluidity and is not too thin.
• Temperature management: Maintain a constant operating temperature range to avoid viscosity fluctuations caused by excessive temperature differences. For sensitive processes, it is recommended to use temperature control equipment to maintain consistency in the operating environment.
• Optimize the preparation process: Adopt scientific and reasonable stirring methods, that is, select appropriate stirring speed and time, which can not only fully mix the components but also prevent unnecessary mechanical damage.
• Regular inspection: Regular monitoring through laboratory testing methodsGold pasteIdentify and correct potential issues in a timely manner based on viscosity parameters.
• Proper storage: Follow the manufacturer's storage guidelines, avoid direct sunlight, humidity, and extreme temperature environments to reduce the negative effects of aging.

4、 Research Platinum Brand YB8106 Gold Paste

Produced by Advanced Institute (Shenzhen) Technology Co., LtdResearch Platinum Brand YB8106 Gold PasteIt is a product designed specifically for LTCC technology. It adopts advanced formulation technology and strict production quality management standards to ensure that the product has excellent rheological properties and stable chemical properties. User feedback indicates that in practical applications, this gold paste can adapt well to different process conditions and maintain ideal viscosity levels even in complex and changing operating environments, greatly facilitating customer experience.

For example, in the production line of a well-known communication equipment manufacturer, engineers chose to use YB8106 gold paste from Yanbo brand for through-hole filling operations. Due to its excellent thixotropy and anti settling ability, this gold paste not only simplifies the application process, but also increases the success rate of subsequent sintering steps, thereby reducing the scrap rate and improving overall production efficiency.

5、 Conclusion

In summary, by effectively controlling each key link in the production process of LTCC through-hole gold paste, we can achieve precise control of the viscosity of the gold paste. This not only helps improve product quality, but also brings significant cost-effectiveness to the enterprise. In the future, with the advancement of materials science and technology, it is believed that more innovative solutions will emerge, further promoting the development of the LTCC industry.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.