Glass Material Supply and Precision Fabrication for Semiconductor and Optical Applications

By combining carefully selected glass materials from leading manufacturers in Japan, Korea, Germany, China, and other countries with our patented high-precision processing technology, We ensure exceptional cleanliness, superior surface accuracy, high transmittance, excellent homogeneity, and reliable supply.

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Who We Are

We are shaping new value through high-quality glass material supply from Japan, Germany, Korea, and China, combined with custom high-precision processing for Semiconductor and Optical applications.

Business overview

Glass Materials
for Semiconductor Applications

Photomask Substrates

Applicable Materials: Fused Silica & Synthetic Quartz

Material Purity & Internal Defects
Flatness, Parallelism & Thickness Uniformity
Ultra-Low Surface Roughness & Minimal Subsurface Damage
Low Particle Contamination, Low Impurity Levels & Low Defect Density
Refractive Index Uniformity, Low Birefringence & Thermal Stability
Production Consistency & Traceability

Glass Materials
for Optical Applications

Optical Windows

Widely Used in Biomedical, Optoelectronic Communications, Optical Equipment, and Laser Components

Material Purity & Internal Defects
Surface Figure Accuracy, Parallelism & Wedge Angle
Surface Roughness & Subsurface Damage
Particle Control, Contamination & Surface Defect Density
Transmittance, Birefringence & Thermal Stability
Production Consistency & Traceability
Coated Windows: Coating Adhesion, Coating Uniformity, Spectral Transmittance & Reflectance
Laser Windows: Laser Damage Threshold, Absorption Rate
High-Precision Imaging: Wavefront Distortion, Scattering & Haze
Space / Outdoor / Harsh Environments: Environmental Resistance, Thermal Shock Stability

High-Precision Custom Machining

Ultra-Thin (150μm and above)

Super-Thin (300 μm to 700 μm and above)

Photomask Substrates
Low slicing stress, crack-free, no edge chipping, full-area and local thickness uniformity, parallelism, initial flatness, reduced downstream polishing removal, and low TTV
Optical Windows
Surface figure optimization, wedge angle control, coating processes, spectral / wavefront inspection
Reliability Validation
Low internal defects, bubbles, and striae; cutting orientation matched to material characteristics
Dimensional Precision
Outer diameter / length and width accuracy, thickness accuracy, edge chamfering, concentricity or profile tolerances

Product lineup

High-Precision Processing

High-precision customized processing with pre-supplied sample materials, precision inspection reports for raw materials, and shipment test reports, meeting the stringent quality standards required for semiconductor and optical applications.

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Competitive Pricing

Through a fully integrated support system covering material selection, procurement, logistics, pre-processing, and final machining, we help customers reduce significant hidden costs and fulfill our commitment to competitive pricing.

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Technical Advantages

By integrating the rigorous manufacturing disciplines and advanced technologies of Japan, Germany, Korea, and China in semiconductor photomask and optical glass processing, we consistently deliver high-quality semiconductor glass materials and customized machining services to customers across Europe, the United States, and Japan—helping maximize the performance of your products.

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We’d love to hear from you

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Purchasing & Inquiries: Service@wcotc.com
Business Inquiries: Info@wcotc.com