Glass Powder: Empowering Next-Gen Electronics with Advanced Sealing Glass Powder Solutions

Release time：2025-06-23

The article introduces the characteristics, parameters and applications of Low Temperature Co-fired Ceramic (LTCC) technology and glass powder.

In the rapidly evolving landscape of electronics, the demand for compact, high-performance, and reliable components is ever-increasing. At the heart of this innovation lies advanced material technology, particularly in the realm of hermetic packaging and interconnection. This blog post delves into the transformative potential of Low Temperature Co-fired Ceramic (LTCC) technology and highlights how Sinopride(www.spcera.net)' cutting-edge sealing glass powder products are pivotal in achieving superior electronic device performance and reliability. As a leading manufacturer in the field, Sinopride offers customized glass powder solutions that cater to the most stringent industrial requirements for glass to metal seal customize applications.

Introduction to LTCC Technology and Its Critical Role

Low Temperature Co-fired Ceramic (LTCC) is a groundbreaking materials technology that emerged in 1982. It utilizes thick-film materials and a co-firing process to create highly integrated, high-performance electronic packages. LTCC materials are essentially glass-ceramic dielectric composites mixed with organic fillers, carefully formulated to control shrinkage during sintering and achieve desired electrical properties. This lower sintering temperature allows for the co-firing of high-conductivity metals like gold (Au), silver (Ag), and copper (Cu) for electrodes and wiring. This technology offers immense potential in design flexibility, wiring density, and reliability for Multi-Chip Modules (MCMs).

The LTCC process involves several key steps: raw material preparation (glass-ceramic powder and organic binders), slurry formation, tape casting to create a green tape, blanking, via punching, via filling, screen printing of circuitry, lamination, and finally, co-firing at temperatures typically below 900°C.

LTCC has become a mainstream solution in passive integration due to its ability to enable miniaturization, high frequency, integration, and cost-effectiveness in electronic components. Its key advantages include:

· Excellent high-frequency and high-speed transmission characteristics.

· Adjustable dielectric constant, enhancing circuit design flexibility.

· Low thermal expansion coefficient, crucial for reliable high-density packaging.

· Superior insulation and temperature stability, suitable for high-current and high-temperature applications.

· Better thermal conductivity than conventional PCB substrates, improving heat dissipation.

· Facilitates multi-layer interconnection, leading to smaller and more efficient devices.

These benefits make LTCC indispensable in various applications, including mobile communications, high-frequency microwaves, automotive electronics, medical devices, and aerospace systems.

Sinopride: Your Trusted Partner in Sealing Glass Powder

Established in January 2015, Sinopride Technology Co., Ltd. (Shenzhen Sinopride Technology Co., LTD) is a national high-tech enterprise based in Shenzhen, China. With a strong foundation built by industry veterans and materials experts boasting over 30 years of experience, Sinopride specializes in the development of new special inorganic materials. The company's core focus areas include glass-metal sealing glass powder, glass-metal/ceramic hermetic packaging, and LTCC dielectric glass materials.

Sinopride is committed to innovation and quality, holding multiple patents and certifications, including ISO9001 and ISO14001, demonstrating its robust quality and environmental management systems. With a production base in Ganzhou spanning 10,000 square meters and a team of 120 employees, Sinopride boasts a monthly production capacity of 100 tons of sealing glass granulating powder and an annual capacity exceeding 100 million pieces of glass preforms. Our mission is to be a proud Chinese leader in special glass and new ceramic fields, contributing to the localization of materials in various critical sectors. For more information about Sinopride, please visit www.spcera.net.

Sinopride Products: Kovar Sealing Glass and Iron Sealing Glass

Hermetic sealing is crucial for protecting sensitive electronic components from environmental factors like moisture, gases, and contaminants. Sinopride offers a comprehensive range of sealing glass powder solutions, including our specialized Kovar Sealing Glass and Iron Sealing Glass, designed for robust glass to metal seal customize applications. These products are vital for ensuring the long-term reliability and performance of electronic packages, especially those utilizing LTCC technology.

Our sealing glass powder products are supplied in granular form, which undergoes dry pressing and vitrification to form glass preforms.These preforms are then used for hermetic sealing in various components such as tube shells and connectors. Our glass preforms are engineered to prevent issues like bubbles, cracks, excessive climbing, glass breakage, and poor voltage resistance, ensuring a reliable and consistent seal.

Below is a table showcasing some of our key sealing glass powder models, including their critical parameters and typical applications, demonstrating our commitment to powder glass customize solutions:

Glass Powder Model	ST015	ST408	SH604	SK016
Glass System	SiO₂-Na₂O-K₂O	PbO-ZnO-B₂O₃	SiO₂-Al₂O₃-B₂O₃	PbO-ZnO-B₂O₃
Sintering Temperature (°C)	460-490	430-460	460-490	410-440
Thermal Expansion Coefficient (TEC x 10⁻⁷/°C, 30-300°C)	115±5	97±3	50±3	100±3
Density (g/cm³)	2.58	6.2	2.6	6.5
Color	Dark Blue	Black	Light Yellow	Black
Application Area/Features	Low temperature sealing, commonly used for sealing iron materials, provides excellent vacuum tightness.	Iron sealing glass for vacuum devices, known for good electrical insulation and high strength. Used for tube shells, power devices, and various hermetic seals.	Kovar sealing glass, specifically designed for sealing with Kovar alloys, offers robust sealing and high reliability. Often used for sealing caps.	Low melting point sealing glass powder, suitable for lower temperature co-firing processes, ensuring broad compatibility.

Our kovar sealing glass and iron sealing glass are engineered for performance and reliability, ensuring optimal results in various demanding environments. These products, alongside others like our granulated glass for metal packages, demonstrate our leadership in Industrial Fine Glass Powder manufacturing.

Practical Applications and Advantages for Procurement Professionals

When selecting glass powder for sealing electronic components, procurement professionals often prioritize reliable performance, cost-effectiveness, and ease of integration. Sinopride' products directly address these needs:

1.Parameter Visualization + Scenario-Based Communication: We understand that choosing the right material can be complex. Instead of just presenting raw technical data, we focus on how our powder glass sealing solutions perform in real-world scenarios. For example, our ST015 sealing glass powder with its TEC of 115±5 x 10⁻⁷/°C and a sintering temperature between 460-490°C is ideal for applications requiring robust seals with iron materials, ensuring long-term stability even under thermal cycling. This translates to fewer field failures and higher product satisfaction for your end-users.

2.Reliability in Demanding Environments: The demand for hermetically sealed components in industries like automotive and aerospace is immense. Our SH604 kovar sealing glass, with a TEC of 50±3 x 10⁻⁷/°C, is specifically designed to match the thermal expansion of Kovar alloys, creating a highly stable and vacuum-tight seal. This critical property ensures that devices can withstand extreme temperatures and harsh conditions, reducing maintenance costs and enhancing product lifespan. This makes us a reliable powder glass coating company for critical applications.

3.Support for Advanced Integration (LTCC): As LTCC technology drives miniaturization and higher integration, the need for compatible and high-quality sealing glass powder becomes paramount. Our portfolio of low temperature sealing glass customize options supports the co-firing processes essential for LTCC structures, allowing for the creation of complex, multi-layered electronic modules with superior performance and reduced footprint. Our Industrial glass powder is a perfect fit for such intricate designs.

4.Customization and Technical Support: We recognize that every application has unique requirements. Our expertise in glass powder customize and sealing glass powder customize allows us to develop tailored solutions that meet specific performance criteria, whether it’s for enhanced chemical resistance, specific thermal properties, or unique dimensional needs. We offer comprehensive technical support to ensure seamless integration of our products into your manufacturing processes. As a leading glass powder manufacturer, we are dedicated to supporting your innovative projects.

Conclusion: Driving Innovation with High-Quality Glass Powder

The future of high-performance electronics is intricately linked to advancements in materials science. LTCC technology, with its ability to integrate complex functionalities in a compact form factor, relies heavily on the quality and reliability of its constituent materials. Sinopride, as a dedicated powder glass factory and glass powder company, stands at the forefront of this evolution, providing high-quality sealing glass powder solutions that enable manufacturers to push the boundaries of electronic design.

By choosing Sinopride(www.spcera.net)' kovar sealing glass and iron sealing glass, you are not just acquiring materials; you are partnering with a company committed to delivering superior performance, unwavering reliability, and tailored solutions. Our products, like the ST015, ST408, SH604, and SK016 models, are testament to our commitment to excellence in Industrial sealing glass powder and powder glass sealing applications. For a deeper dive into our product offerings or to discuss your specific requirements, please visit our glass sealing products or contact us directly.