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Q7: How to select & process customized quartz glass?

Q: Q7: How to select & process customized quartz glass?

How to select the suitable quartz glass grade for projects?The core of selection is to combine the working spectral band and actual working environment. If your project focuses on deep ultraviolet transmission such as UV lithography and ultraviolet detection, JGS1 is the preferred option. For conventional visible light and near-ultraviolet optical equipment, JGS2 can fully meet the requirements. If the equipment works in the infrared band, JGS3 with optimized infrared performance is the best choice. For semiconductor production lines with ultra-high purity requirements, synthetic fused silica is a must. We suggest providing detailed working conditions, spectral parameters and usage environment, and our technical team will recommend the most cost-effective solution. What are the key points for quartz glass machining?Quartz glass has high hardness and brittleness, so the processing requirements are much stricter than ordinary glass. Cutting and grinding must adopt professional diamond tools. For semiconductor-grade high-precision optical parts, CMP chemical mechanical polishing is used to achieve sub-nanometer surface roughness. After machining, annealing treatment is indispensable to release internal stress and prevent cracking during later use. For ultra-high purity products used in semiconductors, the whole processing process needs to be completed in a dust-free clean room to avoid surface contamination. Meanwhile, we support customized processing according to customer drawings, samples and special technical indicators.

Update Time:2026/6/30

How to select the suitable quartz glass grade for projects?

The core of selection is to combine the working spectral band and actual working environment. If your project focuses on deep ultraviolet transmission such as UV lithography and ultraviolet detection, JGS1 is the preferred option. For conventional visible light and near-ultraviolet optical equipment, JGS2 can fully meet the requirements. If the equipment works in the infrared band, JGS3 with optimized infrared performance is the best choice. For semiconductor production lines with ultra-high purity requirements, synthetic fused silica is a must. We suggest providing detailed working conditions, spectral parameters and usage environment, and our technical team will recommend the most cost-effective solution.

What are the key points for quartz glass machining?

Quartz glass has high hardness and brittleness, so the processing requirements are much stricter than ordinary glass. Cutting and grinding must adopt professional diamond tools. For semiconductor-grade high-precision optical parts, CMP chemical mechanical polishing is used to achieve sub-nanometer surface roughness. After machining, annealing treatment is indispensable to release internal stress and prevent cracking during later use. For ultra-high purity products used in semiconductors, the whole processing process needs to be completed in a dust-free clean room to avoid surface contamination. Meanwhile, we support customized processing according to customer drawings, samples and special technical indicators.

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James Fu, Sales Director of FELIX OPTICAL GLASS, and a poster displaying contact information for an optical glass deep-processing factory.

James Fu, Sales Director of FELIX OPTICAL GLASS, and a poster displaying contact information for an optical glass deep-processing factory. 2

Learn more from our FAQ

What is the minimum order quantity for custom precision optical glass components?: FELIX OPTICAL GLASS offers highly flexible MOQs to support customer projects, including prototype testing, small-batch trial orders, and high-volume production. All products can be fully customized to your drawings, tolerances, and application standards. Please send us your specifications, and we will reply within 1-5 hours and provide an accurate quotation after careful evaluation within 1-2 days.

Can I get free glass samples for testing before bulk order?: Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.

What is the production lead time for custom optical glass components?: A: The production cycle for standard samples is 3-10 working days, while mass production requires 15-35 working days, depending on the complexity of the product and the order quantity. We provide reliable precision optical glass components and fast delivery services for orders from industries such as defense, industrial equipment, medical devices, shipbuilding, robotics, automotive, and aerospace. Please submit your project details so we can provide you with an accurate delivery schedule.

Are your optical glass products ISO, CE and RoHS certified?: All precision optical glass components from FELIX OPTICAL GLASS comply with ISO quality system standards as well as CE and RoHS requirements. We provide comprehensive test reports, spectral graphs, material certificates, and inspection documents for customer review. Please feel free to request complete certification details and a formal quotation at any time.

Do you offer one-stop custom optical glass processing services?: Yes. We offer a full range of precision optical glass component processing services, including CNC machining, precision grinding, optical polishing, chemical/physical tempering, vacuum coating (AR anti-reflective coating, AF anti-fingerprint coating, AG anti-glare coating, IR infrared coating), and screen printing. From raw materials to finished products, every step is completed in our own factory. Please tell us your needs, and we will provide you with the most cost-effective solution.

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With 19 years of experience as a precision optical glass expert, we provide comprehensive and satisfactory customized solutions.

✔ROHS CE certified ISO9001:2005 quality management system
✔Professional team over 19 years’ experience under Japanese management system
✔Help over 2000+ companies to make prototypes into mass production successfully
✔Challenge the 100% on time delivery goal 100% full inspection report
✔Cost-down solutions for over 2000+ companies with success
✔Free solutions provided based on different industries
✔Support free samples (quick sample production) Small quantity (100-1000pcs) available

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