Emulsion glass, processing of chrome masks.
With our extensive technology cultivated over many years and state-of-the-art equipment, we provide "high precision," "high definition," and "high quality" photomasks that are outstanding in both reliability and productivity, delivered quickly and reliably. Additionally, we propose new value with the protective coat "TOP'S," developed through the fusion technology between our company and DIC. 【Features】 [Chrome Mask (Quartz)] ■ High durability, low thermal expansion (less than 1/10 of blue plate), high transmittance [Chrome Mask (Blue Plate)] ■ High durability, low thermal expansion [Emulsion Glass Mask] ■ No humidity change, low thermal expansion For more details, please refer to our catalog or feel free to contact us.
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【Specifications and Material Details】 ■ Mask Type: Small Chrome Mask / Large Chrome Mask / Emulsion Mask ■ Material: Quartz, Blue Plate / Blue Plate / Blue Plate ■ Coefficient of Thermal Expansion [/℃ (Room Temperature to 200℃): 5×10⁻⁷, 8.1×10⁻⁶ / 8.1×10⁻⁶ / 8.1×10⁻⁶ ■ Transmittance: Over 90% (200nm), Over 80% (365nm) / Over 80% / Over 80% ■ Flatness: 10μm / Overall / 250mR or more (Curvature Radius) / 250mR or more (Curvature Radius) *For more details, please refer to the catalog or feel free to contact us.
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Company information
Rat Corporation aims to be a company that satisfies its customers by leveraging its network with various electronic-related businesses both domestically and internationally to provide higher-level products and meet the diverse needs of its clients. For materials, equipment, manufacturing, and design of photomasks and printed circuit boards, trust Rat Corporation.
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