Explore our highly integrated core products offering absolute sealing capabilities and mechanical longevity.
Founded in November 2014, Xinyunyang Precision Technology Co., Ltd. has established itself as an engineering powerhouse dedicated to advanced industrial growth. Guided by the core tenets of Integrity, Innovation, Cooperation, and Sharing, we specialize in high-end metallurgical machining.
Our core competency focuses directly on Kovar precision processing technology. By deep cultivating in critical environments—semiconductors, high-speed optical communications, aerospace, medical instruments, and military defense networks—we deliver highly customized, extremely reliable hermetic packaging structures.
Through persistent scientific research and strategic industrial partnerships, Xinyunyang has successfully matured into a dominant global supplier of hermetic package lids, high-density Kovar alloy components, and micro-precision elements.
How our integrated engineering and digital planning structures secure significant supply chain benefits.
A dedicated talent pool of over 100 high-caliber operators, where more than 30% are professional R&D engineers specializing in metallography and CNC program planning.
Core technical members possess over a decade of deep precision metal processing experience, actively developing high-temperature Kovar and Titanium processing formulas for next-gen 5G and aerospace nodes.
Governed by an ISO 9001 certified Quality Management System. Supported by an ERP-driven production workflow, increasing average delivery speeds by 15% to 20% compared to typical standards.
A deep dive into structural expansion coefficients, glass matching, and vacuum-tight sealing integrity.
In high-reliability semiconductor packaging and aerospace telemetry modules, materials are subjected to dramatic thermal shifts ranging from cryo-temperatures in outer space to intensive heat generated during power amplification. Traditional structural metals (like copper or aluminum) expand rapidly under thermal load, leading to immediate fracture and structural failure of hermetic seals.
Kovar Alloy (UNS K94610 / ASTM F15), historically engineered as 4J29, is a vacuum-melted iron-nickel-cobalt formulation. Its chemical configuration—approximately 29% Nickel, 17% Cobalt, and Balance Iron—is deliberately designed to produce a thermal expansion profile that mirrors hard borosilicate glass and alumina ceramic substrates. This exact coefficient of thermal expansion (CTE) match of 4.7±0.2×10⁻⁶/℃ across critical temperature ranges prevents mechanical stresses at glass-to-metal joints, providing permanent vacuum integrity under intense operating states.
| Physical Property Description | Standard Value / Limit | Relevance in Extreme Environments |
|---|---|---|
| Thermal Expansion Coefficient (20°C – 450°C) | 4.6 - 5.2 × 10⁻⁶/K | Eliminates structural mismatch stresses with Alumina & Silicon. |
| Inflection Temperature (Curie point transition) | > 430 °C | Maintains consistent linear CTE during assembly processes. |
| Vacuum Helium Leakage Target (Sealed State) | < 1 × 10⁻⁹ Pa·m³/s | Guarantees protection against moisture ingress over decades. |
| Thermal Conductivity (at 20°C) | 17 W / m·K | Allows controlled, localized heat dissipation in components. |
Purchasing raw high-temperature Kovar parts requires choosing a supplier that actively manages the material's microstructural phases. When heating Kovar to thermal seal levels (up to 1000°C), uncontrolled grain growth can weaken the alloy's structural integrity. This leads to intergranular cracking and helium leakage. At Xinyunyang, we employ precise temperature and atmospheric controls during vacuum annealing to inhibit grain growth, ensuring excellent mechanical fatigue limits and reliable sealing performance.
Modern global logistics require more than high-quality components; they demand reliable delivery, digital tracking, and stable lead times. Xinyunyang's modern facility integrates Smart Manufacturing technology directly into the shop floor. Our digital production scheduler links real-time CNC feeds to customer ERP networks, giving us full visibility over project workflows.
By optimizing high-speed toolpath models and reducing tooling wear, we have improved operational efficiency by 15% to 20% for standard and custom Kovar orders. Additionally, we maintain a robust safety stock of fully verified ASTM F15 raw billets. This protects our clients from global material shortages and sudden price swings, ensuring uninterrupted production cycles.
Faster Delivery
Machining Tolerance
Customized Kovar configurations optimized for critical global industries.
We design high-power laser diode shells and photodetector submounts. These components deliver low insertion loss (<0.26dB at 40GHz), ensuring excellent RF signal path integrity.
Our Kovar frames, crystal mounting structures, and specialized sub-elements provide excellent heat tolerance during high-temperature ceramic packaging co-firing processes.
Specifically developed for high-altitude telemetry systems, microwave transceivers, and satellite sensors, these components are fully certified for extreme orbital environments.
High-end component sourcing is subject to strict global regulations. Beyond dimensional precision, aerospace and defense contractors require absolute traceability in material sourcing.
Our Kovar (4J29) raw supplies are fully Conflict-Free verified. Every production run is backed by comprehensive metallurgical reports detailing chemical compositions and material origins. Furthermore, we comply fully with RoHS and REACH environmental standards. This ensures that every high-reliability hermetic seal we manufacture is ready for immediate deployment in eco-conscious international markets.
We utilize premium electroplating lines that conform to MIL-G-45204 standards. This ensures excellent solderability and corrosion resistance, preventing whiskers from forming over long service lives.
Every critical vacuum part is tested using helium mass spectrometer leak detection. This guarantees seal reliability and ensures high performance in ultra-high vacuum applications.
A transparent look inside our state-of-the-art Shenzhen precision manufacturing facility.
Pioneering the next generation of hermetic micro-packaging for emerging technologies.
As micro-electronic architectures continue to scale down, the demands on hermetic packaging grow exponentially. Signal frequencies are climbing beyond 100GHz, and package sizes are shrinking. These changes require redesigned Kovar alloy structures that can handle tight spacing and high power levels.
Our long-term technology plan focuses on three key development pillars:
Discover our highly specialized custom housings, connector parts, and high-temperature sub-assemblies.
Crucial steps to evaluate Kovar component suppliers before initiating global logistics contracts.
When procurement managers buy custom high-temperature Kovar parts, verifying these technical specifications prevents costly quality issues and delays:
Expert technical answers to common queries from procurement managers and design engineers.
Kovar's thermal expansion curve closely matches both borosilicate glasses and alumina ceramics up to 450°C. This unique property prevents structural mismatch stresses, ensuring highly reliable, long-lasting glass-to-metal and ceramic-to-metal hermetic seals.
We achieve exceptional precision by combining multi-axis CNC machines and Swiss-type machining centers with custom tooling configurations. This setup prevents mechanical warping during processing, allowing us to hit tighter tolerances than standard machine shops.
We offer comprehensive surface finishing options, including electroless and electrolytic nickel plating (conforming to MIL-C-26074) and premium gold plating (conforming to MIL-G-45204). These finishes provide excellent solderability, low contact resistance, and outstanding corrosion protection in harsh environments.
Yes. All of our material supplies are fully certified Conflict-Free. We provide chemical analysis sheets with every shipment, ensuring complete compliance with EU RoHS and REACH directives.
We perform helium mass spectrometer leak testing on 100% of our hermetic housings. Our components consistently meet strict leak rate standards (less than 1×10⁻⁹ Pa·m³/s), ensuring high-reliability protection for delicate internal circuitry.
Our ERP-driven digital planning tools optimize machine run times and tool utilization. This proactive scheduling shortens lead times by 15% to 20% compared to typical industry turnarounds, helping our clients keep their production lines moving.
Xinyunyang Precision
