Manufactured under strict ISO 9001:2015 controls from primary natural raw quartz deposits in Donghai. Certified low-bubble, non-outgassing components designed for high-stress thermal and wet-chemical wafer fabrication.
When selecting a quartz wafer carrier manufacturer for harsh fab operations, wafer yield is determined by chemical inertness, structural geometry, and low thermal expansion. In thermal diffusion, chemical vapor deposition (CVD), and oxidation processes, process temperatures reach up to 1100°C–1200°C. Standard borosilicate, alumina, or lower-grade technical ceramics create contamination risks through thermal fatigue, ionic leaching, and mechanical sag.
Donghai Kemzo utilizes electromechanically purified natural crystalline SiO₂ with purities reaching 99.99%. Fused quartz features an exceptionally low coefficient of thermal expansion (CTE) of 5.5 × 10⁻⁷ /°C—approximately 1/6th that of standard glass. This enables our quartz boats, diffusion cages, and wafer carriers to transition smoothly between high-temperature furnace hot zones and ambient atmospheric conditions without dimensional distortion or thermal fracturing.
Engineering properties critical for process integration in semiconductor front-end and medical MEMS cleanrooms.
| Property Attribute | Tested Value | Semiconductor Processing Advantage |
|---|---|---|
| Silicon Dioxide Content (SiO₂) | ≥ 99.99% | Prevents trace heavy-metal migration into high-resistivity silicon substrates. |
| Density @ 20°C | 2.20 g/cm³ | Low-mass design reduces furnace thermal inertia and process cycle times. |
| Continuous Working Temperature | 1100 °C | Stable structural support in atmospheric oxidation and annealing furnaces. |
| Maximum Short-Term Limit | 1450 °C | Tolerates process temperature spikes without localized softening or deformation. |
| Coefficient of Thermal Expansion (20–300°C) | 5.5 × 10⁻⁷ /°C | Maintains slot pitch within ±0.05 mm to prevent robotic transfer mishandling. |
| Dielectric Constant (1 MHz) | 3.75 | Stable electrical insulation properties in plasma-enhanced etch chambers. |
| Chemical Resistance | Acid Resistant (ex. HF / H₃PO₄ >150°C) | Long structural life across aggressive Piranha, RCA, and Aqua Regia wet clean benches. |
Santiago de los Caballeros is expanding its light industrial profile, shifting from traditional assembly toward high-reliability electronics, medical device manufacturing, and applied optics within the Cibao Valley free trade zones (Zonas Francas). Kemzo delivers engineered quartz solutions that meet international cleanroom and traceability standards.
Santiago's free trade zones host growing biomedical engineering clusters. Micro-bore quartz capillary tubes and cleanroom-assembled fused quartz carriers allow precise chemical isolation during bio-MEMS thin-film deposition and biocompatible sensor packaging without plasticizer leaching.
Electronic manufacturing services (EMS) in Santiago producing power-conversion modules require quartz furnace tubes and slot boats for sintering, thick-film firing, and passivation. Fused quartz maintains slot spacing and structural rigidity across repetitive thermal cycling.
Analytical laboratories at regional universities and private quality-assurance facilities in Santiago de los Caballeros utilize optical quartz window plates, spectrophotometer cuvettes, and digestion crucibles to prevent trace element contamination during spectroscopy testing.
Procurement teams in the Dominican Republic are updating their supply chains to support technical manufacturing and reduce operational disruption.
With North American manufacturers expanding technical operations into Caribbean nearshore hubs, facilities in Santiago de los Caballeros are adopting ISO Class 5 and Class 7 cleanrooms, increasing the need for certified, low-particulate quartz ware.
Local procurement departments are reducing reliance on third-party stockists by partnering directly with source manufacturers like Kemzo. This direct access provides custom engineering drawings, material certificates, and lower per-unit consumable costs.
The Caribbean's high relative humidity and ambient temperatures place unique stress on production setups. Fused quartz does not oxidize, degrade, or fog over extended periods, providing consistent performance across chemical cleaning and thermal processing cycles.
Based in Donghai County—China's primary quartz processing center—we provide end-to-end quality control from raw sand to crated glass assemblies.
Direct access to local high-purity natural silica reserves ensures consistent optical clarity, uniform melting, and stable pricing across large production runs.
Every wafer boat, tube, and plate undergoes multi-stage inspections for dimensional tolerances, wall thickness uniformity, and thermal stress distribution.
From CAD blueprints to finished parts, our technicians perform precision diamond slot cutting, fire polishing, ground joints, and flame welding in-house.
Our custom shock-isolated wooden crating uses high-density cellular foam to ensure sensitive, fragile quartz ware arrives safely in Santiago via air or ocean freight.
Technical guidance for cleanroom operators, procurement directors, and laboratory managers.
Fused quartz is produced by melting natural crystalline quartz sand, offering structural rigidity, high thermal resistance (up to 1100°C continuous), and chemical stability at a competitive cost. Synthetic fused silica is synthesized via chemical vapor deposition from silicon compounds (like SiCl₄), providing higher deep-UV transmission and sub-ppm metallic purities for deep-ultraviolet lithography. For thermal diffusion, wet chemical etching, and cleanroom carriers, natural high-purity fused quartz provides the required balance of purity, durability, and cost efficiency.
Yes. Custom OEM and ODM production is a core part of our manufacturing. We produce wafer boats and carriers according to your drawings, matching pitch distance, slot width, slot angle, overall carrier profile, and bridge support designs. Our engineers review your CAD files (DWG, DXF, STEP, or PDF) to verify tolerances (typically down to ±0.05 mm) before fabrication starts.
We use export packaging engineered specifically for international shipping. Each quartz component is wrapped in antistatic film, secured in form-fitting cushioning foam, and packed in reinforced inner boxes. Multiple inner boxes are then secured inside heavy-duty, moisture-sealed wooden export crates. We arrange direct air cargo to Cibao International Airport (STI) for fast deliveries, or sea freight via Caucedo/Haina for larger shipments.
High-purity fused quartz resists common mineral acids, including boiling hydrochloric acid (HCl), nitric acid (HNO₃), and sulfuric acid (H₂SO₄). For cleanroom decontamination, bath immersion in a diluted hydrofluoric acid solution (3% to 5% HF) or SC-1/SC-2 clean solutions safely strips deposited films. Avoid concentrated HF or hot phosphoric acid (>150°C), which react chemically with silicon dioxide matrices.
We work with international commercial terms including FOB (China), CIF, CFR, EXW, and DDU door-to-door delivery. Payments can be settled in USD, EUR, or CNY via structured wire transfers (T/T), Letters of Credit (L/C), or PayPal for smaller prototyping orders.
Standard prototype fabrications usually require 10 to 18 working days depending on slot geometry and annealing requirements. Following final quality control, air express transit to Santiago de los Caballeros typically takes 5 to 8 business days, ensuring new components can be integrated into production lines with minimal downtime.
Connect directly with our engineering team for custom drawings, chemical purity assays, and volume pricing. We typically reply within one hour during standard business operations.
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