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Step into the production workshop of Kunshan Yingliyue Electronics, and you’ll witness a remarkable scene: inside a high-vacuum chamber, an invisible “magic” is quietly unfolding. Ordinary metal, plastic, or ceramic components, through a series of physical transformations, “grow” a uniform, dense, a
We provide professional one-stop surface treatment services including PVD vacuum coating, sandblasting, precision polishing, and laser engraving. We focus on metal and plastic parts such as aluminum alloy, stainless steel, and engineering plastics, widely used in 3C electronics, automotive inter
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PVD (Physical Vapor Deposition) and CVD (Chemical Vapor Deposition) are two major thin-film coating technologies. PVD vaporizes materials through physical means (e.g., heating or sputtering), resulting in strong adhesion but slower deposition rates. CVD forms coatings via chemical reactions, off
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From 3C electronics to high-end automotive, this Kunshan-based company redefines "surface value" with 32 vacuum coating systems and two decades of technical expertise.
Amidst the wave of transformation in consumer electronics and automotive intelligence, a small yet critical link—surface treatment—is quietly determining product quality, durability, and brand value. Situated in the heart of precision manufacturing in the Yangtze River Delta, Kunshan Yingliyue Electronics Co., Ltd. has emerged as a formidable player in this field, driven by 13 years of deep specialization, 32 vacuum coating systems, and a full-chain, one-stop solution.
Originally focused on PVD (Physical Vapor Deposition) vacuum coating, Yingliyue has not only mastered the core process parameters and equipment tuning capabilities but has also built a fully integrated manufacturing chain encompassing CNC machining, polishing, PVD coating, laser engraving, and inspection. This article takes you behind the scenes of this low-profile yet highly capable "surface treatment expert" to explore the technical expertise and strategic vision that set it apart.
Founded in 2012 and located in Kunshan High-tech Zone, Yingliyue now operates three production bases equipped with 32 vacuum coating systems, supported by complementary facilities for lapping, cleaning, and inspection. With over 50,000 square meters of plant space and a team of nearly 200 employees, the company has built a precision manufacturing framework centered around PVD and supported by integrated pre- and post-treatment capabilities.
In PVD, equipment performance directly determines film adhesion, density, and uniformity. Yingliyue’s coating lines feature complete vacuum systems (mechanical pumps + molecular pumps), magnetron sputtering sources, substrate heating, and bias control systems, enabling high-precision deposition of metal targets (e.g., Ti, Al) and compound targets. The systems consistently maintain a high vacuum environment ranging from 10⁻³ to 10⁻⁶ Pa, while mass flow controllers (MFCs) precisely regulate argon and reactive gas ratios, providing a solid foundation for the production of high-end functional coatings such as TiN and DLC (diamond-like carbon).
If equipment is the backbone, process parameters form the nervous system of PVD. At Yingliyue, senior engineers with over 20 years of experience meticulously adjust key parameters—sputtering power, working pressure, substrate temperature, bias voltage, and more—based on the intended application of the coating, whether it be high-hardness wear-resistant coatings, low-resistivity conductive films, or high-transmittance optical layers.
For instance, in producing high-hardness TiN coatings, Yingliyue’s typical process parameters include:
Sputtering power: Increased to 10–15 kW to ensure efficient titanium sputtering while preventing target overheating.
Working pressure: Controlled within 0.3–0.5 Pa to enhance ion bombardment and improve coating density.
Nitrogen flow ratio: N₂/Ar ratio precisely maintained between 30% and 40% to ensure the correct stoichiometry of TiN.
Substrate bias: DC bias of –50 V to –100 V applied to significantly enhance film-substrate adhesion.
This philosophy of "parameter synergy" enables Yingliyue to rapidly develop stable, mass-producible, high-yield process solutions for a variety of substrates (stainless steel, aluminum alloy, ceramics, plastics) and diverse client requirements (salt spray testing, wear resistance, color consistency).
In volume PVD production, poor film adhesion is one of the most common quality challenges. Yingliyue’s engineering team has established a systematic methodology for troubleshooting and optimization:
Parameter traceability: Verify whether sputtering power deviates by more than ±10% from standard, confirm base vacuum ≤5×10⁻³ Pa, and check substrate heating temperature profiles.
Single-variable optimization: With other parameters fixed, adjust sputtering power incrementally (−15% to +15%), optimize argon flow (20–50 sccm), and test substrate bias levels (0 to –100 V).
Validation methods: Use scratch testing to measure critical load (Lc), observe cross-sectional morphology via SEM, and analyze film stress states with XRD.
Typical optimization strategies include increasing substrate preheating temperature by 50°C to enhance interfacial diffusion, applying RF bias up to –70 V to raise particle bombardment energy, and adjusting deposition rates to 0.5 nm/s to optimize film growth patterns. This systematic approach to process iteration is key to Yingliyue’s ability to reliably serve high-end clients such as Huawei, Xiaomi, Apple, Mercedes-Benz, Hongqi, and BMW.
Yingliyue’s product offering extends far beyond that of a traditional "coating workshop," forming a one-stop service capability that integrates polishing, PVD, laser engraving, and inspection.
3C Electronics: Apple phone buttons, side buttons, vibration motor cores; Beats headphone hinges and charging ports; Redmi triple camera housings; OPPO phone USB ports and pop-up cameras; Huawei watch cases, earpieces, and speaker grilles; Xiaomi laptop hinges, and more.
Smart Wearables: Full-process production for products like the Xiaotiancai flagship watch Z9, with a daily output of 3,500 sets (CNC → polishing → PVD → laser engraving).
Automotive: Mercedes-Benz key components, BOS automotive speaker grilles, exhaust pipes, interior and exterior components for models such as the Hongqi H9/LS7, Tank 500, BMW X1, Lotus Eletre, FAW Lanjing, Volvo S90, and Hozon Neta.
This dual focus on consumer electronics and high-end automotive demonstrates Yingliyue’s process expertise in precision cosmetic parts as well as its technical maturity in meeting automotive-grade requirements for weather resistance and corrosion resistance.
In manufacturing, system certifications serve as a critical endorsement of capability. Yingliyue holds internationally recognized certifications including ISO9001, IATF-16949 (Automotive Quality Management System), ISO14001, and ISO45001, and possesses over 30 patents, with multiple invention patents granted. The company has been honored as a "Private Science and Technology Enterprise" and a "High-Tech Enterprise."
In terms of service, Yingliyue operates a dedicated account management system, offering clients customized process development for specialized performance requirements, assistance with upstream and downstream process management, and comprehensive one-stop solutions. This approach reflects the company’s transformation from a simple "processor" to a "technology partner."
Looking toward 2025 and beyond, Yingliyue’s vision is clear: to become a globally recognized supplier of surface treatment solutions. The path forward centers on PVD vacuum coating as the core, extending upstream into CNC and polishing, and integrating downstream into laser engraving and inspection, thereby forming a vertically integrated precision manufacturing platform.
As new energy vehicles, AI hardware, and high-end wearables place increasing demands on surface treatment—such as lower-temperature deposition processes, higher-hardness DLC coatings, and more environmentally friendly green PVD technologies—Yingliyue is leveraging its combination of technical depth, production scale, and service responsiveness to accelerate its transition from a "hidden champion" to an "industry benchmark."
Conclusion
Surface treatment is the most tangible point of contact between a product and its user. At Yingliyue, each coating represents not only the atomic-level assembly of thin films but also the company’s enduring commitment to delivering exceptional quality. If you are seeking a surface treatment partner with deep process expertise, robust management systems, and a proven track record of tackling complex challenges, Yingliyue is precisely the kind of trusted partner you’re looking for.
Kunshan Yingliyue Electronics Co., Ltd.
Specializing in PVD Vacuum Coating | One-Stop Surface Treatment Solutions
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