Optimized high-reliability packaging shells, custom-manufactured to withstand Togo's coastal saline environments.
As Togo shapes itself into a primary commercial and digital gateway for the West African sub-region—headlined by the deployment of the high-capacity Equiano subsea fiber-optic cable in Lomé and the continuous development of modern carrier-neutral data centers—the demand for highly reliable structural hardware has reached an unprecedented scale.
Kovar (4J29), an iron-nickel-cobalt alloy precisely manufactured to match the expansion rates of borosilicate glass and alumina ceramics, is a cornerstone material for these projects. Our factory designs and customizes specialized Kovar packaging shells to ensure optical signal stability, high-frequency signal transition, and durable sensor protection. By preserving hermetic seals under extreme thermal fluctuations, we support the telecom infrastructure bridging Lomé, Kara, and neighboring landlocked ECOWAS economies.
Founded in November 2014, Xinyunyang Precision Technology Co., Ltd. has adhered to its core values of Integrity, Innovation, Cooperation, and Sharing.
The company focuses on Kovar precision processing technology as its core competitiveness, deeply cultivates the fields of semiconductors, optical communications, aerospace, medical devices and new energy/military industry, and is committed to providing miniaturized, customized and high-reliability metal packaging solutions to global customers. Our goal is to become a significant hermetic package lids, Kovar alloy components, and precision parts supplier in China and even worldwide after years of continuous effort, with the support of our partners and customers.
The company has a professional team of more than 100 people, of which technical engineers account for 30%.
Core members have been deeply engaged in precision metal processing for more than ten years, continuing to explore composite processing of special metals like Kovar and titanium alloys, proactively laying out packaging needs in 5G, AI, and new energy.
With our ISO 9001 certified quality management system and intelligent production scheduling, Xinyunyang has increased regular delivery efficiency by 15%-20%, serving as a key global supplier.
High-precision processing capability
Advanced technology and equipment
Strict quality control
Flexible customized services
Understanding the strict metallurgical control required to maintain vacuum integrity in high-reliability applications under challenging thermal stress.
| Property Designation | 4J29 Kovar Standard Values | Xinyunyang Optimized Tolerance / Control | Togo / Subtropical Environmental Impact |
|---|---|---|---|
| Nominal Composition | 29% Ni, 17% Co, Balance Fe | Controlled within ±0.2% | Prevents phase changes down to -196°C in remote telecom nodes. |
| Coefficient of Thermal Expansion (CTE) | 4.6 - 5.2 × 10⁻⁶/K (30 - 400°C) | Adjusted for specific glass/ceramic partners | Maintains hermeticity under intense daily temperature cycling in Lomé. |
| Thermal Conductivity | 17 W/(m·K) at 20°C | Uniform microstructure for optimal dissipation | Crucial for passive heat transfer in unventilated modular sub-stations. |
| Corrosion Protection | Standard raw metal finish | Electroless Ni (min 3μm) + Gold plating (min 1.25μm) | Tested against ASTM B117 salt spray for West African marine atmospheres. |
| Hermetic Leak Rate | < 1×10⁻⁸ atm·cc/sec He | Verified using mass spectrometer detectors | Keeps internal cavities dry against 90%+ tropical relative humidity. |
Lomé's coastal geography exposes industrial hardware to high saline levels and extreme humidity. Unprotected Kovar will undergo progressive surface oxidation. To mitigate this risk, Xinyunyang applies a state-of-the-art dual-layer electroplating process conforming to international military and aerospace specifications: a sulfamate nickel underplate to block copper or iron migration, topped with an outer layer of 99.9% pure gold (per MIL-G-45204). This ensures that while the Kovar core maintains its low expansion properties, the external shell remains immune to local tropical environmental factors.
Deploying Kovar package shells in specific projects to drive West African industrial growth.
Protecting delicate optoelectronic repeaters landing at Lomé beaches. High physical resistance and zero-leak hermeticity safeguard multi-terabit data streams.
Providing custom protective enclosures for high-power electronics and solar grid micro-controllers deployed in dry, high-heat northern Togo regions like Dapaong.
Supporting local medical institutions with hermetically sealed sensor housings for diagnostics, preventing body fluid ingress and ensuring stable operation.
Solid performance metrics supporting high-tech expansion across various markets.
A visual tour of our production facilities, quality inspection rooms, and structural machining labs.
How Xinyunyang is innovating hermetic packaging to support evolving power densities, sustainable material extraction, and high-frequency communication protocols.
Aligned with international initiatives like the Lomé Sustainable Energy Strategy, we are integrating green manufacturing practices into our processing flow. This includes recovering and recycling scrap metals, reducing liquid emissions during electroplating, and sourcing raw minerals that are certified conflict-free.
As fiber optic systems move toward 800G and 1.6T transceivers, space is increasingly constrained. Xinyunyang is actively investing in precision milling setups that achieve wall thicknesses below 0.2 mm while maintaining mechanical rigidity and absolute hermetic seal reliability.
By applying machine learning algorithms to predict mechanical stresses, we can optimize the physical structure of Kovar shells before cutting raw stock. This process reduces development times for custom orders, allowing West African partners to rapidly iterate on their hardware designs.
Designed for telecom, aerospace, and medical device systems requiring high-reliability hermetic packaging.
Technical answers regarding 4J29 Kovar, design guidelines, and logistics paths for the Togo and West African markets.
Unlike steel or aluminum, Kovar (4J29) has a thermal expansion coefficient that matches borosilicate glass and alumina ceramic. This is essential for glass-to-metal (GTMS) and ceramic-to-metal (CTMS) seals. When temperature fluctuates, it expands at the same rate as the glass window or connector pins, preventing cracks and keeping the seal hermetic.
We use high-grade plating options, including electroless nickel plating and pure gold plating (per MIL-G-45204). This acts as a barrier against salt mist and humidity, protecting the raw Kovar alloy core from oxidation.
Yes. Our in-house engineering team designs and manufactures custom configurations using our high-precision CNC setups. We accept STEP, DWG, and IGES file formats, allowing us to build parts to your exact dimensional constraints.
We are ISO 9001 certified. Each package shell is tested using helium mass spectrometry leak detectors, and we run optical inspections to verify dimensions down to micron-level tolerances.
We offer air and ocean freight shipping directly to the Port of Lomé. Our logistics team handles international documentation and certificate generation to help simplify regional import clearance.
Get in touch with our design engineers for detailed drawings, metallurgical analysis sheets, and volume pricing terms.
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Xinyunyang Precision
