Quartz Boat for CVD Furnace Manufacturer & Suppliers for Moldova

Yes, absolutely. We specialize in custom drawing-based fabrication. You can provide 2D engineering drawings (PDF, DWG, DXF) or 3D STEP/IGES models detailing boat length, outer tube diameter clearance, wafer slot count, slot pitch (e.g., 2.38 mm, 3.175 mm, 4.76 mm), slot depth, and handle configurations. Our senior engineering team reviews dimensional feasibility and thermal expansion allowances within 2 hours on business days before initiating precision fabrication.

Transporting thin-walled quartz boats and wafer carriers requires multi-tier protective packaging. Each quartz part is first vacuum-sealed in anti-static PE film inside an ISO cleanroom environment. The component is then nested in multi-layer, custom-contoured high-density shock-absorbing EPE foam, placed into an inner corrugated box, and sealed within a robust, export-grade fumigated wooden crate. We apply external "Fragile" and "TiltWatch" impact indicators. We ship to Moldova via DHL/FedEx Express or air freight to Chișinău International Airport (KIV) with a 99.8% safe-arrival track record.

All commercial and academic shipments are processed through the Customs Service of the Republic of Moldova (Serviciul Vamal al Republicii Moldova). Standard imports typically classify under HS Code 7017.10.00 (Laboratory, hygienic or pharmaceutical glassware, whether or not graduated or calibrated - of fused quartz or other fused silica). We provide complete export documentation, including Commercial Invoices, Packing Lists, Certificates of Origin, and Material Purity Mill Test Certificates. If your university or research center qualifies for VAT/duty exemption under international aid or Horizon Europe agreements, our documentation matches your exemption credentials.

Our 99.99% fused quartz boats are rated for continuous service at 1100°C and short-duration excursions up to 1300°C. With low internal hydroxyl content (OH⁻ < 20 ppm), devitrification is significantly delayed. Under typical cleanroom LPCVD conditions (e.g., polysilicon, silicon nitride, or oxide deposition at 600°C–900°C), our boats regularly achieve hundreds of thermal cycles before requiring refurbishment. Avoiding surface contact with bare hands (alkali sweat) and regular chemical cleaning maximizes operational lifespan.

To prevent cross-contamination and remove deposited thin films without etching the quartz matrix, we recommend a controlled 5% to 10% hydrofluoric (HF) acid dip for no more than 3–5 minutes, followed immediately by cascade rinsing in 18 MΩ·cm deionized (DI) water. Alternatively, for organic residue decontamination, a standard piranha solution (3:1 H₂SO₄ to H₂O₂) at 90°C can be used. After cleaning, dry in a Class 100 nitrogen purge oven. Never touch cleaned quartz with bare hands; always use lint-free cleanroom gloves.

We support flexible international commercial terms, including DAP Chișinău, CIP Chișinău Airport, FOB Shanghai/Lianyungang, and EXW Donghai. Payments are accepted via international wire transfer (T/T), confirmed Letter of Credit (L/C), PayPal, or Credit Card. Accepted invoicing currencies include EUR (€), USD ($), GBP (£), and CHF.

Yes. Beyond wafer boats, Zelvo manufactures the entire thermal chamber ecosystem: large-diameter fused quartz furnace tubes (up to 450 mm OD), vacuum-flanged quartz twin-bore tubes, solid quartz push rods with locking hooks, high-vacuum bell jars, and bubbler ampoules. Sourcing matched thermal components from a single manufacturer guarantees dimensional compatibility and uniform thermal expansion.