Advanced CTE-Matched Hermetic Assemblies and Specially Alloys Processing Lineup
In the modern aerospace, satellite technology, and defense instrumentation sectors, microelectronic modules are subjected to extreme thermal environments, harsh vibrations, and deep vacuum exposure. Ensuring the longevity and structural stability of sensitive semiconductors is paramount. Xinyunyang Precision Technology Co., Ltd., founded in November 2014, has positioned itself at the absolute forefront of this niche, specializing in Kovar precision processing technology.
Kovar (ASTM F15) is a highly specialized iron-nickel-cobalt alloy (comprising approximately 54% iron, 29% nickel, and 17% cobalt) designed to possess a thermal expansion coefficient closely matching that of borosilicate glasses (such as Corning 7052) and alumina ceramic substrates. Through rigorous AS9100 standard processes, we manufacture high-tolerance, highly integrated components that guarantee the integrity of critical Glass-to-Metal Seals (GTMS) and Ceramic-to-Metal Seals (CTMS).
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Kovar alloy features unique physical attributes, but its metallurgical properties make precision CNC machining inherently challenging.
Kovar maintains a constant thermal expansion curve matching borosilicate glass up to approximately 450°C. By implementing precise dimensional controls and controlled vacuum heat treatments, we ensure that post-machined parts display no microstructural shifts that could risk seal integrity in sub-zero orbit environments.
Kovar is notoriously gummy and work-hardens rapidly during cutting operations. Our factory utilizes specialized micro-grain carbide tooling, optimal high-pressure flood cooling, and meticulous CNC pathing (cutting speeds and depth adjustment) to prevent residual stresses from warping the finalized components.
To achieve reliable glass sealing, Kovar components must undergo controlled oxidation and decarburization procedures. Our localized factory environment ensures all vacuum annealing processes are conducted with ultra-high purity hydrogen, maximizing surface compatibility for gold and nickel plating.
Integrating advanced metallurgical knowledge with flexible, scale-ready production pipelines
With a staff of over 100 dedicated specialists, our technical engineers account for 30% of our workforce. We possess deep theoretical and practical knowledge in metallurgy, aerospace tolerances, and surface technologies, ensuring every customized design matches strict structural requirements.
Our core leadership team has focused on high-precision special metals machining for over a decade. We continue to pioneer composite processing technologies for challenging materials like Kovar, titanium alloys, and high-purity copper, actively serving downstream demands in 5G, artificial intelligence, and new energy ecosystems.
Through our certified quality management systems and advanced, intelligent production scheduling systems, we optimize factory floor workflows. This dynamic management reduces lead times for regular batches by 15%-20%, giving our global clients a critical time-to-market advantage.
As aerospace platforms transition to higher frequencies and dense packaging models, AS9100 Kovar components have become foundational to regional defense infrastructures, satellite communication constellations, and commercial rocketry networks.
In Low Earth Orbit (LEO), systems experience severe thermal cycling as they transition between solar radiation and the shadow of the Earth. Kovar packaging protects sensitive transponder modules, frequency synthesizers, and GPS/GLONASS receivers from micro-cracking and signal degradation, ensuring reliable deep-space communications.
For high-altitude UAVs and commercial flight decks, modern optical sensors require precise dimensional positioning. The negligible CTE variance of Kovar ensures laser diode packages, optical detector windows, and infrared systems maintain focus and alignment across thermal swings from -55°C to +125°C.
As microelectronics shrink, packaging density must scale up. Xinyunyang Precision is committed to updating our technological capabilities to match the evolving micro-packaging landscape:
We are continually upgrading our high-speed multi-axis milling centers to consistently achieve sub-micron dimensional tolerances. This allows us to manufacture complex, multi-cavity hermetic Kovar packaging with extremely thin walls for lightweight aerospace avionics.
Our future technologies focus on integrating high-vacuum brazing and localized diffusion bonding. This creates highly integrated multi-material components, such as joining Kovar directly with oxygen-free copper to maximize thermal dissipation and achieve robust hermetic isolation.
We are expanding our high-efficiency plating lines to offer chemical-free, localized pre-treatments and ultra-thin electroless nickel-gold plating. This ensures long-term solderability and corrosion resistance in salty, humid marine atmospheres without environmental hazards.
Operating within China's premier advanced manufacturing hubs, Xinyunyang Precision leverages integrated supply chains to provide cost efficiencies, rapid prototyping, and scalable production output.
Our localized network of raw material partners guarantees high-purity Kovar (ASTM F15) sheets, bars, and preforms, protecting our production runs from global supply interruptions. Furthermore, our integrated heat-treating, surface preparation, and quality assurance processes allow us to transition from blueprint designs to validated prototypes within exceptionally short timeframes.
Through our specialized intelligent scheduling system, we coordinate real-time machine configurations, workforce deployment, and tool wear diagnostics. This data-driven approach yields a 15% to 20% increase in regular order output efficiency, helping us absorb cost variations and maintain competitive pricing for our wholesale global partners.
The global commercialization of LEO space flights, combined with the roll-out of high-capacity 5G and optical telecommunications, has driven high demand for high-reliability hermetic packaging. Major optical communication systems, deep-space probes, medical implants, and defense radar arrays require absolute structural stability over long life cycles.
Xinyunyang Precision delivers bespoke wholesale metal packaging components globally, meeting the requirements of European, North American, and Asian high-reliability manufacturers. By matching international specifications and offering comprehensive technical trace documentation, we help clients streamline their localized engineering and integration processes.
A look at our advanced manufacturing facilities, inspection centers, and cleanrooms.
For global aerospace and defense projects, quality verification is non-negotiable. At Xinyunyang, our quality systems are fully certified to international standards. We perform rigorous metrology checks and testing to verify every component matches specifications:
Expert answers on physical properties, machining strategies, and surface processing for engineers and procurement teams.
Alloys like aluminum and stainless steel expand rapidly when heated. If joined to glass or ceramic substrates, this thermal mismatch causes stress during temp swings, leading to cracked seals and packaging failure. Kovar’s thermal expansion curve closely matches borosilicate glasses and alumina ceramics up to 450°C, ensuring robust hermetic protection in harsh thermal environments.
To relieve internal stresses and stabilize grain structures before glass-to-metal sealing, we perform vacuum annealing and wet-hydrogen decarburization at temperatures between 900°C and 1050°C. This eliminates surface carbon deposits, controls grain growth, and grows a uniform oxide layer that bonds reliably with molten glass.
Kovar is highly ductile and work-hardens quickly, which can accelerate tool wear. We use rigid multi-axis CNC setups, solid carbide tooling with specialized AlTiN coatings, and high-feed, deep-cut machining paths to stay below the work-hardened boundary layer. High-pressure cooling fluid is delivered directly to the cutting zone to manage heat.
To ensure reliable solder joint formation and prevent corrosion, we offer electroless nickel plating (per MIL-C-26074) and high-purity gold plating (per MIL-G-45204). Our plating layers are strictly tested for thickness and adhesion to prevent blistering during high-temperature brazing.
Yes. Our factory supports both large-scale wholesale orders and low-volume aerospace development cycles. Through our intelligent scheduling system, we can quickly re-configure production lines to manufacture high-precision prototypes, helping engineering teams validate layouts before full production.
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Xinyunyang Precision