High-Precision Fused Silica & Quartz Components for Incheon
Manufactured from high-purity natural silica sand in Donghai and processed via multi-axis CNC profiling, diamond surface grinding, and laser micro-drilling. Every unit meets SEMI C10 specifications and withstands continuous thermal loads up to 1100°C.
Custom Coated 99.99% Pure Quartz Rings for Semiconductor CVD Optics
Custom Clear Laboratory High Temperature Twin Tube 99.99% Pure Quartz Glass
Customizable High Pressure Polished Clear Transparent Quartz Glass Twin Tube
Customized High Purity Threaded Transparent UV Quartz Glass Tube
High Temperature Fused Quartz Glass Sheet for XRD Sample Tank Chip Testing
Custom High Purity Flange Quartz Tube Fused Silica Polished Flange Ring
Custom Size Optical Grade Transparent Fused Quartz Glass Test Sample Sheet
High Temperature Resistance Frosted Quartz Disc / Plate Semiconductor Applications
Fused Silica Integration Across Incheon's Specialized Industrial Belts
Incheon represents South Korea's premier logistical gateway and a pivotal high-tech manufacturing axis within the Seoul Capital Area. From the heavy concentration of advanced electronics packaging facilities in the Namdong National Industrial Complex to the world-renowned biopharmaceutical clusters in Songdo International Business District (IFEZ), high-performance fused silica plate components serve as indispensable infrastructural materials.
Unlike conventional borosilicate or soda-lime glass, fused silica plates (comprising ≥99.99% silicon dioxide) provide an unprecedented combination of zero thermal shock vulnerability (coefficient of thermal expansion of $5.5 \times 10^{-7} \text{K}^{-1}$), deep ultraviolet transmission (exceeding 90% at 193nm for synthetic grades), and exceptional dielectric isolation under high-frequency microwave regimes. As semiconductor foundries and outsourced semiconductor assembly and test (OSAT) providers across Incheon and adjacent Gyeonggi-do migrate toward 2.5D/3D chiplet architectures, temporary glass carrier plates, slotted wafer trays, and vacuum chamber inspection ports must adhere to strict dimensional tolerances (±0.02 mm) and atomic-scale surface finishes.
Lianyungang Zelvo Quartz Products Co., Ltd. bridges high-precision raw crystal smelting from Donghai County—China's renowned quartz capital—directly to Incheon's maritime shipping docks and Incheon International Airport (ICN) cargo logistics terminals. We deliver fast-turnaround, drawing-customized fused quartz and synthetic silica plates that eliminate supply bottlenecks for Tier-1 and Tier-2 Korean suppliers.
Namdong Industrial Complex
Specialized backing plates, frosted sputtering stage covers, and slotted carriers for SMT lines, PCB micro-drilling, and advanced OSAT packaging test benches.
Songdo Bio-Cluster (IFEZ)
Optical-grade UV quartz inspection windows, high-purity spectro-photometer plates, and autoclave reactor plates resistant to caustic sterilizing agents.
Cheongna & Bupyeong High-Tech
Laser optics substrates, robotics sensor protection lenses, and vacuum chamber furnace viewing ports engineered for rapid thermal processing (RTP).
Fused Quartz vs. Synthetic Fused Silica: Material Science Benchmarks
Selecting the precise silica matrix is crucial for procurement engineers across South Korea. We offer continuous melt clear fused quartz (JGS2 equivalent), electric arc fused quartz, and synthetic chemical vapor deposition silica (JGS1 equivalent).
| Physical / Chemical Property | JGS1 (Synthetic Fused Silica) | JGS2 (Optical Fused Quartz) | JGS3 (Infrared Fused Quartz) |
|---|---|---|---|
| Primary Transmission Spectrum | 185 nm – 2500 nm (Deep DUV/UV) | 220 nm – 2500 nm (UV / Visible) | 260 nm – 3500 nm (Extended IR) |
| SiO2 Purity Content | ≥ 99.9999% (< 0.1 ppm Fe) | ≥ 99.99% (< 1.0 ppm Fe) | ≥ 99.99% (< 1.5 ppm Fe) |
| Hydroxyl Radical Content ([OH‾]) | High (approx. 800 – 1200 ppm) | Medium (approx. 150 – 200 ppm) | Low (< 5 ppm Water Absorption Peak Free) |
| Coefficient of Thermal Expansion (CTE) | $5.4 \times 10^{-7} \text{K}^{-1}$ | $5.5 \times 10^{-7} \text{K}^{-1}$ | $5.5 \times 10^{-7} \text{K}^{-1}$ |
| Annealing Point / Softening Point | 1140°C / 1730°C | 1215°C / 1683°C | 1180°C / 1680°C |
| Dielectric Constant ($\epsilon$ at 1 MHz) | 3.75 | 3.78 | 3.77 |
| Standard Surface Polish Quality (CMP) | 20/10 Scratch-Dig, Ra < 0.3 nm | 40/20 Scratch-Dig, Ra < 0.8 nm | 60/40 Scratch-Dig, Ra < 1.2 nm |
| Primary Applications in Korea | Excimer Laser Windows, UV Masks, Micro-Lithography | Plasma Observation Ports, Wafer Trays, Furnace Windows | IR Sensors, Pyrometer Ports, Thermal Pyrolysis Discs |
Hydroxyl Radical Dynamics in High-Frequency & Laser Applications: In precision biopharmaceutical analytics and excimer laser systems utilized within Songdo, the absorption signature of the hydroxyl radical ([OH‾]) is critical. JGS1 synthetic silica features virtually no trace metal metallic ion traps, preventing radiation darkening (solarization) under prolonged 248nm (KrF) and 193nm (ArF) excimer exposure. Conversely, for semiconductor high-heat processes found in Gyeonggi-Incheon thermal diffusion furnaces, JGS2 quartz plates provide an optimal structural equilibrium: its slightly higher annealing threshold prevents mechanical warping and sagging during prolonged cycles at 1050°C–1150°C.
Localized High-Tech Applications Driving Fused Silica Demand in Incheon
Incheon's strategic positioning within the Incheon Free Economic Zone (IFEZ) and its proximity to Pangyo Techno Valley and the Hwaseong-Pyeongtaek semiconductor cluster demand versatile, custom-machined quartz solutions.
Semiconductor OSAT & Carrier Plates
During fan-out wafer-level packaging (FOWLP) and 3D stacking in Incheon's packaging lines, ultra-flat fused silica discs serve as debonding carrier plates. Low total thickness variation (TTV < 2 μm) ensures zero micro-void delamination under laser thermal release.
Biopharma UV Transmissive Reactors
Songdo's bio-processing production suites leverage custom polished quartz sight glass plates for in-line spectroscopic viral inactivation and photolysis monitoring. Our plates guarantee zero trace alkali metal leaching, preserving sterile active pharmaceutical ingredients (APIs).
Display Stage Mirrors & Masks
OLED and Micro-LED manufacturing corridors adjacent to Incheon mandate large-format silica substrates up to 1000mm × 800mm. Outstanding thermal stability eliminates pattern drift during laser lift-off (LLO) and high-density UV exposure processes.
R&D Analytical XRD / Spectroscopy
Supplying zero-background fused silica sample carriers to university research institutes (such as Inha University and Incheon National University). Chemically inert against aqua regia, nitric acid, and boiling organic solvents (except HF).
Direct-From-Source Engineering: Donghai Precision to Incheon Port
Combining the mineral resource wealth of China's silica capital with advanced European multi-axis CNC fabrication and stringent quality auditing protocols.
Full-Spectrum Processing
From slicing ingots using precision wire saws to diamond core drilling, ultrasonic micro-grooving, CNC contour chamfering, and fire-polishing. We accept complex 2D/3D CAD drawings (DWG, DXF, STEP) and deliver fully functional parts.
Rigorous Quality Assurance
Every fused silica plate destined for the South Korean market undergoes strict interferometric surface flatness verification, polariscopic internal stress measurements, bubble/inclusion categorization (DIN 58927 / ISO 10110), and coordinate measurement machine (CMM) dimensional checks.
Direct Logistics to Incheon
Situated directly across the Yellow Sea from Incheon Port, our factory in Lianyungang offers dedicated weekly roll-on/roll-off maritime container routes with transit times under 36 hours, supplemented by 2-day express air shipments to Incheon International Airport (ICN).
| Machining Operation | Achievable Tolerances | Surface Finish Parameters | Processing Capacity / Dimensions |
|---|---|---|---|
| CNC Milling & Profiling | ±0.02 mm (±0.0008 in) | Ground (Ra 1.6 μm) or Fire-Polished | Up to 1200 mm × 1000 mm |
| Double-Sided Optical Lapping (CMP) | Thickness ±0.005 mm | Ra ≤ 0.3 nm (20/10 Scratch-Dig) | Thickness 0.1 mm to 60 mm; Φ 450 mm |
| Laser Micro-Drilling & Slotting | Hole Diameters down to 0.15 mm ±0.01 mm | Micro-crack free, clean edge beveling | Array drilling up to 10,000 holes/substrate |
| Custom Beveling & Edge Grinding | Chamfer angle ±0.5°, widths 0.1–5 mm | C-shape edge, R-edge, 45° safety bevel | Mitigates chipping during wafer handling |
Frequently Asked Questions by Incheon Procurement Managers
Addressing engineering specifications, Korean customs clearing procedures, thermal management criteria, and quality validation workflows.
What are the key differences between quartz glass plates and fused silica plates for semiconductor applications?
Fused silica (often referred to as synthetic silica) is synthesized chemically via high-temperature vapor oxidation of silicon tetrachloride (SiCl4). Synthetic fused silica achieves 99.9999% purity, features virtually non-detectable trace metallic inclusions, and guarantees superior deep ultraviolet transmission down to 185 nm with near-zero bubble counts (Class 0 inclusions per DIN 58927). For high-heat furnace loads (>1000°C), fused quartz is typically preferred due to its higher viscosity; for optical lithography, high-frequency dielectric windows, and excimer laser optics in Incheon's packaging labs, synthetic fused silica is standard.
How does your export logistics work for deliveries into Incheon Port or Incheon International Airport?
For expedited prototyping and emergency production line support, we deploy DHL, FedEx, or air cargo via Shanghai/Zhengzhou directly to Incheon International Airport (ICN), achieving door-to-door transit to Namdong Industrial Complex or Songdo Bio-Valley within 48 to 72 hours. We handle full export documentation (Commercial Invoices, Packing Lists with HS Code 7002.32 for quartz tubes/plates, Certificate of Origin under RCEP/China-Korea FTA to reduce import tariffs to 0%).
Can you manufacture fused silica plates with complex blind holes, slotted steps, and chamfers according to Korean engineering standards (KS)?
Tolerances for linear dimensions can be maintained to ±0.01 mm, while thickness tolerances on double-side polished plates can achieve ±0.005 mm with total thickness variation (TTV) under 2 μm upon request.
What measures are taken to prevent micro-cracking and chipping during long-distance transit to South Korea?
For packaging, every plate is cleaned in an ultrasonic bath, sealed in an antistatic Class 1000 cleanroom film (to eliminate particulate contamination), vacuum-bagged, and cradled within high-density expanded polyethylene (EPE) custom foam cutouts. The assemblies are then housed in fumigated, impact-resistant export plywood cases reinforced with outer steel strapping and tilt/shock-indicator labels.
Can your fused silica plates withstand rapid thermal annealing (RTA) cycles and corrosive etching acids?
Chemically, fused silica is virtually unreactive to all acids, including hot nitric acid ($HNO_3$), sulfuric acid ($H_2SO_4$), hydrochloric acid ($HCl$), and aqua regia, making it ideal for wet clean benches in Incheon's packaging facilities. The only notable chemical vulnerabilities are hydrofluoric acid ($HF$) and strong hot alkaline solutions (such as concentrated $KOH$ or $NaOH$ above 100°C), which cause etching.
What is your Minimum Order Quantity (MOQ) and quoting turnaround time for custom R&D requests?
Our dedicated technical engineering department reviews 2D CAD files (.pdf, .dwg) and 3D solid models (.step) with a guaranteed response time of within 2 hours on working days. Detailed DFM (Design for Manufacturability) guidance, raw material selection recommendations, and formal export quotations are delivered swiftly to support your project timelines.
Request a Precision Fused Silica Quote for the Incheon Market
Provide your dimensional parameters, surface roughness requirements, operating temperatures, or CAD drawing. Our engineering export team will verify fabrication feasibility and deliver an itemized quotation within 2 hours.