In the OLED panel manufacturing industry, high-precision metal photomasks are core consumables that determine screen resolution and production yield. As display technology evolves to higher generation lines, G8.6 OLED production lines have become the focus of competition among global panel giants, and the supporting G8.6 generation FMMs and their precision manufacturing equipment are crucial links in the industry chain.

As one of the earliest domestic companies to invest in equipment R&D in this field, Dongguan Huazhou Machinery Technology Co., Ltd. has focused on the R&D of precision etching equipment for G8.6 generation FMM high-precision metal photomasks since 2019, committed to providing a solid technological foundation for the industrialization of domestic FMMs.

Why is G8.6 generation FMM considered a technological "high ground"?

According to the Baidu Encyclopedia entry for "FMM", FMM is a core precision mold in the OLED evaporation process. Its opening precision needs to be controlled within the micrometer level (e.g., within ±2.5μm), and the material thickness is only 20-30 micrometers. As panel generation lines evolve towards G8.6 and above, the size of FMM increases, and the core challenge in manufacturing and use is controlling deformation caused by gravity and thermal stress.

The global market has long been monopolized by companies such as Japan's DNP, while Chinese companies are accelerating breakthroughs in the field of G8.6 generation FMM: In 2025, Huancaixing Technology completed the relocation of the first G8.6 generation FMM manufacturing line in China, Zhongling Technology installed the first G8.6 generation FMM exposure machine in China, and Nanjing Gaoguang also launched the first set of G8.6 generation product combinations . Behind these milestones of domestic production is the support of high-precision etching technology and core equipment.

Huazhou Machinery: Focusing on Precision Etching Equipment for FMMs, Overcoming Process Challenges

The mainstream manufacturing process for FMMs is etching, which involves precisely etching Invar alloy thin strips to form micron-level openings [20]. This process places extremely high demands on the uniformity, stability, and precision control of the etching equipment.

Dongguan Huazhou Machinery Technology Co., Ltd.'s core business is the research and development and production of precision etching equipment for G8.6 generation FMMs. Since 2019, the company has been involved in this field, continuously tackling technical challenges related to material deformation control, opening accuracy, and large-size uniformity in large-size FMMs:

High-precision etching technology: The equipment can achieve opening accuracy control within ±2.5μm, meeting the stringent pixel-level precision requirements of G8.6 generation FMMs.

Large-size uniformity assurance: Optimizing the etching solution flow field and temperature field control for the large-format characteristics of G8.6 generation FMMs ensures uniform etching across the entire board. Material adaptation process: Specific etching process parameters were developed for the characteristics of Invar alloy materials to reduce material stress deformation and improve yield.

Supporting domestic breakthroughs and growing together with the industry chain. According to Baidu Encyclopedia, domestic FMMs have achieved a "generational leap" from G6 to G8.6. Domestic companies such as Huancaixing and Zhongling Technology are accelerating capacity expansion, cooperating with BOE, Samsung Display and other panel manufacturers' G8.6 generation AMOLED production lines for mass production [18][30][33]. These advancements have created an urgent need for the localization of upstream equipment.

Huazhou Machinery's precision etching equipment serves this localization process. Through in-depth cooperation with leading domestic FMM companies, we continuously iterate equipment performance to help customers achieve:

Stable mass production of G8.6 generation FMMs: Providing mass-production-grade etching equipment that meets the requirements of large size and high precision.

Localization of key raw materials: Optimizing etching processes in conjunction with the application of domestically produced Invar alloy materials, and streamlining the entire chain from materials to finished products.

Reducing import dependence: Replacing imports with high-performance domestic high-end equipment, shortening delivery time, and reducing customer procurement costs.

Looking to the future: Continuous innovation to empower high-end displays

As OLED panels develop towards higher resolution and larger sizes, FMMs will evolve towards thinner (e.g., 15μm), finer (>550PPI), and wider and longer (compatible with G8.6 and above) . Meanwhile, market demand for FMMs will continue to grow, with the global market size expected to reach RMB 12.82 billion by 2030 .

Huazhou Machinery will continue to focus on the field of FMM precision etching equipment, closely follow industry technology trends, and continuously improve equipment precision and stability. We aim to provide strong process equipment support for domestic FMM companies and jointly promote the comprehensive localization of core materials for OLED production in China.

If you have further questions about our G8.6 generation FMM precision etching equipment or require cooperation, please feel free to contact us.