Breaking through the bottleneck of power device packaging | Excellent performance of YB1011 pressure sintered silver paste from Advanced Institute

Today, as the power semiconductor industry moves towards high voltage, high temperature, and high power density, traditional tin lead solder or silver sintered materials are no longer able to meet the extreme heat dissipation needs of third-generation semiconductor devices such as IGBT (Insulated Gate Bipolar Transistor) and SiC (Silicon Carbide). Advanced Institute Technology has launchedYB1011 pressure sintered silver pasteWith its unique micro nano composite silver powder system and additive system, it is becoming a key material for solving the heat dissipation problem of high-power device packaging. This article will delve into the technical characteristics, process advantages, and practical application value of the product in the industry.

Micro nano composite technology: reshaping thermal and electrical conductivity

The core competitiveness of YB1011 lies in its advanced formula system. Unlike ordinary silver paste, it uses a micro nano composite silver powder system. This technology cleverly combines the filling properties of micrometer sized silver powder with the sintering activity of nanometer sized silver powder. During the sintering process, nanoparticles act as "bridges" to melt and connect, filling the gaps between microparticles and forming dense metal bonds within the sintered layer.

The optimization of this microstructure directly brings about a leap in macroscopic performance. YB1011 exhibits excellent thermal and electrical conductivity, effectively reducing the thermal and contact resistance between the chip and substrate. For high-power devices, this means that the heat generated during operation can be quickly dissipated, avoiding device failure caused by local overheating, thereby significantly improving the operating efficiency and service life of the power module.

Reliability under stringent processes: Strong and tough combination under 10MPa pressure

As a typical pressure sintered silver paste, YB1011 is designed specifically for high reliability application scenarios. The specialized additive system in its formula, combined with a specific hot pressing process, enables it to exhibit excellent bonding strength after sintering.

In practical applications, this high-strength combination is a guarantee for dealing with extreme environments. Power devices undergo countless thermal cycles (heating when powered on and cooling when powered off) during long-term operation, and the differences in thermal expansion coefficients of different materials can easily generate thermal stress. YB1011 sintered layer has good service reliability, which can effectively buffer thermal stress and prevent weld cracking or delamination. Whether in the motor controller of new energy vehicles or in industrial grade variable frequency drives, it can ensure the stability of the connection between the chip and the substrate, safeguarding the long-term stable operation of the device.

Precision Process Window: Analysis of Standardized Sintering Process

In order to fully utilize the performance of YB1011, Advanced Institute Technology has developed scientific and rigorous sintering process parameters. This standardized process is key to ensuring product consistency:

1. Preheating stage: After silver paste printing, it needs to be preheated at 120 ° C for 20 minutes. This step aims to evaporate the solvent, preliminarily shape the paste, and prevent boiling or voids during subsequent high-temperature sintering.

2. Hot pressing sintering: This is the core process. After attaching the chip, hot pressing sintering was carried out at a temperature of 250 ° C and a pressure of 10MPa for only 3 minutes. High pressure environment helps to eliminate the voids inside the paste and promote the densification of silver particles; The temperature of 250 ° C triggered diffusion and bonding between silver particles.

3. Natural cooling: After sintering is completed, natural cooling helps to release some residual stress and form a stable microstructure.

This process window considers both production efficiency and material properties, providing highly operational production guidance for packaging manufacturers.

Storage and operation: details determine success or failure

High performance materials often have specific requirements for storage and usage environments.YB1011 pressure sintered silver pasteIt is required to be stored in a low temperature environment of 5-8 ° C to maintain its chemical activity and rheological stability.

Before use, operators must strictly follow the two steps of "reheating" and "stirring". Firstly, after taking it out of the refrigerator, it is necessary to warm it up for at least one hour to restore the temperature of the paste to room temperature, in order to avoid the condensation of moisture in the air on the surface of the paste and affect its performance. Secondly, it must be thoroughly mixed before use. Due to the high density of silver powder, sedimentation may occur during the static process. Adequate stirring can ensure that the micro nano silver additive is evenly distributed in the system, thereby ensuring consistent quality in each printing and sintering process.

Industry benchmark: the trusted choice of well-known enterprises in Suzhou

The performance of the product is ultimately tested by the market. A well-known enterprise in Suzhou, as a leader in the field of power semiconductor packaging in China, has chosen to purchase YB1011 pressure sintered silver paste from Advanced Institute Technology for the production of its core products after multiple evaluations and tests.

This collaboration is not accidental. The enterprise faces the challenge of heat dissipation caused by high power density in the production process, and has extremely high requirements for the thermal conductivity and bonding strength of packaging materials. YB1011, with its excellent micro nano composite technology and outstanding bonding strength under 10MPa pressure, perfectly meets the technical needs of the enterprise. This case not only proves the applicability of YB1011 in the high-end manufacturing field, but also marks a solid step forward for Advanced Institute Technology in the field of power electronic packaging materials, setting a new application benchmark for the industry.

Conclusion

From the research and development of micro nano composite formulas, to the validation of rigorous sintering processes, and to the production line application of well-known enterprises in Suzhou,Advanced Institute of TechnologyYB1011 pressure sintered silver paste demonstrates the quality and strength that a high-end electronic paste should possess. In the current booming development of third-generation semiconductors, YB1011 not only solves the physical problems of heat dissipation and connection, but also provides reliable material support for the miniaturization and high efficiency of high-power devices.