ISO 9001 Certified Optical Quartz Fabrication

High-Quality High Temperature Quartz Glass Plates Supplier & Suppliers

Precision-engineered JGS1, JGS2, and JGS3 fused quartz plates offering near-zero thermal expansion, optical transmission across 185–3500 nm, and continuous thermal stability up to 1100°C.

Precision Engineering Portfolio

Featured Industrial Quartz & Optical Components

OEM-certified fused silica plates, laser pump chambers, and custom precision-machined optical quartz solutions for demanding thermal environments.

Technical White Paper & Market Intelligence

Global Landscape of High-Temperature Quartz Glass Plates

High-temperature quartz glass plates (fused silica) represent the pinnacle of vitreous materials science. Manufactured through oxyhydrogen flame fusion or electric vacuum furnace melting of silicon dioxide (SiO₂ ≥ 99.99%), these plates are non-negotiable optical elements in high-thermal, chemically corrosive, and ultra-clean environments across global semiconductor foundries, aerospace observation portals, and photonics research.

Material Grade Spectral Bandwidth Max Working Temp. Softening Point Hydroxyl [OH⁻] Content Key Industrial Applications
JGS1 (Synthetic UV Silica) 185 nm – 2,500 nm 1,100 °C (Peak 1,300 °C) 1,730 °C ≤ 1000 ppm (Synthesized) Deep-UV Lithography, Laser Cavity Optics, Eximer Windows
JGS2 (Optical Fused Quartz) 220 nm – 2,500 nm 1,150 °C (Peak 1,350 °C) 1,710 °C ≤ 30 ppm (Fused Crystal) Semiconductor Furnace Sight Windows, High-Temp Sight Glasses
JGS3 (Low-OH Infrared Quartz) 260 nm – 3,500 nm 1,150 °C (Peak 1,350 °C) 1,720 °C ≤ 5 ppm (Vacuum Electric) IR Spectroscopy Viewports, Plasma Chambers, Pyrometry Windows

Thermal Shock Resistance

Features an extraordinarily low thermal expansion coefficient (α = 5.5 × 10⁻⁷ /°C). Plates withstand instantaneous quenching from 1,100°C to 20°C water bath without fracture, ensuring absolute structural safety in vacuum rapid-thermal-annealing (RTP) equipment.

Chemical Inertness & Purity

Total metallic impurities are strictly controlled under 5–20 ppm. Chemically unaffected by standard acids (including concentrated nitric, sulfuric, and hydrochloric acid) at elevated temperatures, with exceptional etch resistance in fluorinated plasma processing chambers.

Sub-Nanometer Precision

Equipped with advanced double-sided planetary lapping and magnetorheological finishing (MRF). We achieve transmitted wavefront distortion < λ/10 @ 632.8 nm, parallelism < 5 arcseconds, and surface roughness Ra < 0.3 nm for direct atomic-layer bonding substrates.

1,100°C
Continuous Service Temp
λ/10
Optical Surface Flatness
99.999%
SiO₂ Synthetic Purity
<24h
Engineering DFM Turnaround
Industry Trends & Next-Gen Applications

Technology Roadmap: 2026–2030 Quartz Trends

As leading suppliers of high-temperature quartz glass plates, we are transitioning from standard dimensional cutting to atomic-level surface engineering to support three emerging macro-shifts in high-tech manufacturing.

Advanced Node Semiconductor Scaling

Below the 3 nm logic threshold and in 3D NAND stacking surpassing 300 layers, trace ion contamination yields fatal device defects. The demand for ultra-low bubbles (Class 0 per DIN 3140) and synthetic JGS1 quartz plates for viewport glass and carrier plates is projected to grow by 14.2% CAGR.

Direct Laser Deposition & EUV Optics

High-power continuous wave (CW) industrial lasers are exceeding 30 kW thresholds. Standard borosilicate viewports succumb to catastrophic thermal lensing. Fused silica plates with zero bulk absorption at 1064 nm and 10.6 μm provide structural integrity for debris shields and inspection windows.

Aerospace & Hypersonic Thermal Windows

Next-generation avionics sensors require multi-band IR-optical tracking while subjected to acute aerothermal friction. JGS3 plates provide the structural toughness, high thermal conductance, and wide atmospheric transmission required for extreme hypersonic sight sensors.

Full-Stack Process Control

Macro-Industry Solutions: From Drawing to Cleanroom Integration

Tianjin BY Photonics bridges the gap between raw optical blank synthesis and micro-precision components, eliminating tolerance mismatch across segmented subcontractors.

5-Axis Ultrasonic CNC Machining

Diamond-tooled ultrasonic-assisted CNC machining reduces micro-chipping to < 15 μm during complex contouring, precision beveling, step-milling, and deep hole drilling in vitreous fused silica plates.

Stress-Free Annealing Cycles

Every fabricated plate undergoes programmable multi-step thermal soaking in atmospheric electric furnaces up to 1,200°C followed by controlled cooling (< 1.5°C/min) to entirely relax residual stresses, eliminating birefringence.

Class 1,000 Cleanroom Packaging

Final parts undergo ultrasonic detergent baths, high-resistivity DI water rinsing (>18.2 MΩ·cm), nitrogen spray drying, and hermetic vacuum packaging in semiconductor-grade ESD cleanroom bags.

Engineering Help Desk & Technical FAQ

Frequently Asked Technical Questions

Detailed clarifications on material grades, thermal limits, tolerances, and procurement guidelines for precision quartz glass plates.

What are the maximum operational temperatures for quartz glass plates?
Fused quartz plates can operate continuously at 1,100°C (2,012°F) and withstand short-term excursions up to 1,300°C–1,350°C. Above 1,150°C, prolonged exposure without proper annealing can induce devitrification (transformation from amorphous silica to crystalline cristobalite), particularly if airborne surface contamination or alkali metal ions are present.
How does fused silica differ from fused quartz in plate manufacturing?
While frequently used interchangeably, "fused quartz" is derived from naturally occurring high-purity crystalline quartz sand (electric or gas fused, e.g., JGS2, JGS3), offering remarkable thermal properties with slight trace metal concentrations (<20 ppm). "Fused silica" is synthetic, synthesized chemically from silicon tetrachloride (SiCl₄) vapor (e.g., JGS1), exhibiting nearly zero metallic impurities (<1 ppm) and superior transmission down to 185 nm deep-UV.
Can BY Photonics machine custom bevels, holes, and polished steps on quartz plates?
Yes. Our multi-axis precision CNC machining and ultrasonic grinding centers deliver customized hole arrays (straight, stepped, countersunk), complex edge chamfers (C-chamfer, R-round edges to prevent thermal edge chipping), O-ring grooves, and laser-marked fiducials. All machined surfaces can be flame-polished or optically polished down to 20-10 scratch-dig.
What optical coatings (AR) can be applied to high-temperature quartz plates?
We provide electron-beam (E-beam) and Ion-Assisted Deposition (IAD) dielectric Anti-Reflective (AR) coatings for custom operational bands: Single Wavelength (e.g., 532 nm, 1064 nm), Dual-Band (e.g., 755/1064 nm), and Broadband AR (BBAR, 400–700 nm, 1050–1600 nm). Custom high-damage-threshold coatings survive pulsed laser radiation exceeding 15 J/cm² @ 1064 nm 10 ns.
What CAD drawing formats and minimum order quantities (MOQ) are supported?
We accept standard CAD vector and model formats including STEP, IGES, DWG, DXF, and dimensioned PDF drawings. We maintain zero rigid MOQ constraints—we support R&D prototyping from 1–5 piece test runs through to high-volume semiconductor fab batch replenishments of thousands of plates per month.
OEM Production Lineups

More Specialized Optical & Semiconductor Components

Full-process in-house manufacturing: JGS1 plates, laser cavity components, Borofloat 33 wafers, and harsh-chemical sapphire observation windows.