Tier-1 Engineered Catalog
Featured Semiconductor & Optoelectronic Components
Factory-direct precision quartz optics, laser cavity tubes, and high-purity diffusion assemblies certified for industrial high-duty environments.
Industry Technical Whitepaper
Engineering Mastery of Circular Quartz Discs & Plates
Modern photonic systems and semiconductor fabrication lines demand unmatched transmission across broad spectral envelopes, zero bubble-inclusion density, and structural integrity under high laser fluence.
Synthetic vs. Natural Silica
We process ultra-pure synthetic fused silica (JGS1) with near-zero bubble inclusion and exceptional DUV transmission down to 185 nm, alongside high-purity natural fused quartz (JGS2/JGS3) optimized for high thermal shock resistance and broad NIR passbands up to 3,500 nm.
Sub-Nanometer Polishing
Employing double-sided chemical-mechanical planetary polishing (CMP) platforms, our circular quartz discs achieve surface roughness figures below 0.5 nm Ra, scratch-dig ratings of 10-5 / 20-10, and transmitted wavefront distortion verified at λ/10 on Zygo interferometers.
Laser Damage Fluence (LIDT)
Circle quartz plates produced for high-power laser exit windows receive rigorous proprietary chemical acid etching to eliminate subsurface micro-fractures, guaranteeing damage thresholds exceeding 15 J/cm² @ 1064 nm (10 ns pulse width).
99.999%
SiO₂ Material Purity Class
λ/10@632.8nm
Max Surface Wavefront Flatness
< 0.5nm
Surface Roughness (Super-Polish Ra)
± 0.01mm
CNC Dimensional Diameter Tolerance
Market Intelligence
Global Procurement Trends in Circle Quartz Components
Analysis of shifts across Fortune 500 equipment builders, high-energy laser developers, and advanced semiconductor fabs driving optical material demand.
Supply Chain Diversification
Procurement teams are moving away from single-source geographical dependencies. Tier-1 OEMs actively qualify certified Asian manufacturing facilities that integrate raw material sourcing, automated CNC shaping, oxyhydrogen flame processing, and metrology under a single facility roof.
Sub-Nanometer Semiconductor Nodes
The progression toward 3nm and 2nm semiconductor manufacturing cycles demands high-purity quartz viewports, plasma shield rings, and circular substrate carriers completely devoid of metallic ionic contaminations (such as iron, sodium, and potassium below 0.1 ppm).
Rise of Multi-Kilowatt Laser Processing
The worldwide expansion of industrial fiber laser cutting and directed energy deposition requires circle quartz debris plates capable of absorbing back-reflections without localized phase transitions or thermal lensing downfalls.
Enterprise Solutions
Integrated Solutions Across Macro Industrial Sectors
Delivering specialized engineering configurations adapted to stringent operating environments in physics laboratories, aerospace payloads, and wafer processing cleanrooms.
Semiconductor & Microelectronics
Supplying circular quartz substrates, wafer carriers, viewport sight glasses, and dry etch chamber view windows designed to withstand corrosive plasma (CF₄/NF₃) and repetitive thermal cycles exceeding 1,000°C without devitrification.
Laser Resonators & Optomechanics
Precision-polished circular fused silica windows optimized for beam dump reflectors, output couplers, QBH connector end caps, and high-power diode pump cavity isolators with anti-reflective (AR) multi-layer dielectric coatings.
Biomedical & Spectroscopy Viewports
Bubble-free circular fused quartz disc windows for optical density meters, capillary electrophoresis flow cells, spectrophotometers, and dermal laser therapy IPL filters engineered for strict zero-autofluorescence standards.
| Material Designation | Transmission Bandwidth | OH Content | Thermal Expansion Coefficient | Key Macro Application |
|---|---|---|---|---|
| JGS1 Synthetic Silica | 185 nm – 2,500 nm (Deep UV) | < 1,200 ppm (High OH) | 0.54 × 10⁻⁶ / °C | Excimer lasers, DUV inspection, photolithography |
| JGS2 Fused Quartz | 220 nm – 2,500 nm (Standard Optical) | < 30 ppm (Low OH) | 0.55 × 10⁻⁶ / °C | Chamber viewports, furnace sight glasses, optical flats |
| JGS3 Infrared Silica | 260 nm – 3,500 nm (Near to Mid IR) | < 5 ppm (Extremely Low OH) | 0.55 × 10⁻⁶ / °C | IR spectroscopy, thermal pyrometry, high-power CO₂/Nd:YAG optics |
Compliance & Traceability
Global Standards, Localized Engineering Support
Every circle quartz disc leaving our workshop carries comprehensive inspection records, certifying metallurgical purity, optical homogeneity, and mechanical integrity.
Full Lot Traceability & CoC
Every delivery includes Certificates of Conformance (CoC), raw ingot spectral transmission charts, and Zygo interferometric surface verification reports validating flatness (λ/4 to λ/10) and parallelism (< 5 arcsec).
RoHS, REACH & Cleanroom Protocols
100% compliant with EU RoHS and REACH mandates. Parts undergo multi-stage ultrasonic degreasing, DI-water cascade rinsing, and vacuum cleanroom packing suitable for immediate semiconductor assembly line integration.
Bilingual DFM Support
Direct communication with veteran application engineers. We evaluate your STEP, IGES, DXF, or PDF engineering prints within 24 hours, proposing cost-effective edge profiles, bevels, and coating adjustments before tooling starts.
Technology Roadmap
Engineering Horizons: The Future of Quartz Substrates
Investing in tomorrow's fabrication methodologies to solve complex thermal, optical, and geometric challenges in extreme environments.
Phase 1: Present State
Super-Polished Flats
Commercialization of CMP polishing delivering surface roughness Ra < 0.2 nm across 300 mm diameter discs for EUV collector windows and ultra-fast laser optomechanics.
Phase 2: Near Horizon
Atomic Defect Annealing
Deploying specialized hydrogen-atmosphere annealing protocols to eliminate internal stress birefringence, achieving residual path difference < 2 nm/cm.
Phase 3: Scaling Target
Direct Laser Structuring
Transitioning from mechanical diamond-milling to femtosecond laser micromachining for micro-fluidic channels and complex edge geometries without sub-surface microcracking.
Phase 4: Frontier Tech
Plasma-Resistant Coatings
Development of proprietary atomic layer deposition (ALD) protective barrier coatings preventing fluorine/chlorine ion etching in advanced atomic layer etching (ALE) chambers.
Engineering Knowledge Base
Frequently Asked Technical Questions (FAQ)
Precise technical guidance for optical engineers, quality managers, and international sourcing professionals.
What is the key technical difference between JGS1, JGS2, and JGS3 circle quartz plates?
JGS1 is a high-purity synthetic fused silica created through the hydrolysis of volatile silicon compounds, rendering it essentially bubble-free and highly transmissive across the deep ultraviolet (185–2,500 nm). JGS2 is fused quartz made from natural crystalline quartz sand, suitable for visible and near-UV wavelengths (220–2,500 nm). JGS3 is an infrared-grade fused silica processed using gas-free or vacuum melting, which yields an exceptionally low hydroxyl (OH < 5 ppm) content, eliminating the strong absorption band at 2,730 nm and allowing broad infrared transmission up to 3,500 nm.
What diameter tolerances and edge treatments can your factory achieve for circle quartz discs?
Using precision CNC edge-grinding and diamond contouring machines, we regularly achieve outer diameter (OD) tolerances of ±0.02 mm, and up to ±0.005 mm for specialized applications. Available edge finishes include fine ground (matt), commercial chamfered (0.2–0.5 mm × 45°), pencil-polished edges, step-routed rims, and fire-polished edges for vacuum sealing and crack propagation prevention.
How do you test and verify transmitted wavefront error and surface quality?
All precision circular quartz plates undergo testing using Zygo Verifire phase-shifting laser interferometers operating at 632.8 nm (He-Ne laser). We quantify surface flatness down to λ/10 peak-to-valley (PV) and transmitted wavefront distortion. Surface defects (scratch-dig) are inspected under high-intensity dark-field illumination according to MIL-PRF-13830B or ISO 10110 standards, achieving down to 10-5 scratch-dig for laser cavity optics.
Can you machine internal holes, steps, and complex grooves into quartz plates?
Yes. Our factory utilizes multi-axis CNC machining stations with water-cooled diamond ultrasonic tools. We can produce through-holes down to 0.3 mm diameter, counterbores, annular retaining steps, microfluidic channels, and blind slots. Following aggressive machining, parts receive chemical etching to relieve residual sub-surface micro-cracking and annealing to eliminate internal mechanical stress.
What are the minimum order quantities (MOQ) and lead times for custom quartz prototypes?
We maintain an agile prototype-to-volume manufacturing philosophy with no strict minimum order quantity; single-piece custom prototypes are welcomed for engineering evaluations. Prototype turnaround ranges from 7 to 14 business days depending on geometric complexity and coating specifications. Full batch production orders typically ship within 3 to 4 weeks with worldwide air express logistics.
Full Line Engineering Range
Comprehensive Quartz & Specialty Glass Products
Explore our custom spectrophotometer cells, laser light guides, borosilicate substrates, and doped optical glass assemblies.
