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Wuxi Special Ceramic Electrical Co.,Ltd

  • China,Wuxi ,Jiangsu
  • Verified Supplier
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China Polished-Surface Al2O3 Ceramic Wafer Chuck Mirror Finish Alumina Vacuum Grade
China Polished-Surface Al2O3 Ceramic Wafer Chuck Mirror Finish Alumina Vacuum Grade

  1. China Polished-Surface Al2O3 Ceramic Wafer Chuck Mirror Finish Alumina Vacuum Grade
  2. China Polished-Surface Al2O3 Ceramic Wafer Chuck Mirror Finish Alumina Vacuum Grade

Polished-Surface Al2O3 Ceramic Wafer Chuck Mirror Finish Alumina Vacuum Grade

  1. MOQ: 10 Pieces
  2. Price: US$10~US$180/Piece
  3. Get Latest Price
Delivery Time 15-30 days after confirmation
Surface Finish Mirror Polished
Surface Roughness Ra 0.02 um
Alumina Content 99.5% Al2O3
Application Semiconductor Processing Equipment
Max Use Temperature 1700 deg C
Density 3.92 g/cm3
Packaging Details Export-grade cartons with foam inserts, palletized for sea or air freight
Payment Terms T/T, L/C, Western Union
Supply Ability 100,000 Pieces per Month
Color Ivory
Purity Grade Vacuum Grade
Brand Name Wuxi Special Ceramic
Model Number WS-AL-PS14
Place of Origin Jiangsu, China
Certification ISO 9001:2015

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  1. Product Details
  2. Company Details

Product Specification

Delivery Time 15-30 days after confirmation Surface Finish Mirror Polished
Surface Roughness Ra 0.02 um Alumina Content 99.5% Al2O3
Application Semiconductor Processing Equipment Max Use Temperature 1700 deg C
Density 3.92 g/cm3 Packaging Details Export-grade cartons with foam inserts, palletized for sea or air freight
Payment Terms T/T, L/C, Western Union Supply Ability 100,000 Pieces per Month
Color Ivory Purity Grade Vacuum Grade
Brand Name Wuxi Special Ceramic Model Number WS-AL-PS14
Place of Origin Jiangsu, China Certification ISO 9001:2015
High Light Polished Alumina Wafer ChuckMirror Finish Ceramic PartSemiconductor Processing Equipment

In semiconductor processing, the surface that touches the wafer must be perfect: smooth enough to avoid particle trapping, clean enough to avoid contamination, and stable enough to hold wafers flat at process temperature. Our Polished-Surface Al2O3 Ceramic Wafer Chucks are pressed and sintered from vacuum grade 99.5% alumina, then ground and polished to a mirror finish with roughness down to 0.02 microns Ra.

The dense, non-porous surface releases wafers cleanly, resists the aggressive chemistries of etch and deposition chambers, and stands up to repeated plasma exposure without degradation. Vacuum grooves, lift pin holes and edge contours are precision machined to the tool design, making each chuck a ready to install component rather than a blank.

Key Features
  • Mirror polished surface: Ra 0.02 µm finish minimizes particle trapping and improves wafer backside contact.
  • Vacuum grade purity: 99.5% alumina with controlled trace elements prevents metallic contamination of wafers.
  • Plasma resistance: Inert surface survives aggressive fluorine and chlorine process chemistries without erosion.
  • Thermal stability: Operates reliably across the temperature range of etch, CVD and implant processes.
  • Precision machined features: Vacuum grooves, pin holes and notches machined to the chuck drawing with tight tolerances.
  • Low particle generation: Fully dense surface produces minimal wear particles during wafer handling cycles.
  • Long consumable life: Hard polished surface keeps its finish through thousands of wafer runs between refurbishments.
Technical Specifications
ParameterSpecification
Alumina Content99.5% Al2O3
Density3.92 g/cm³
Surface Roughness PolishedRa 0.02 µm
Flatness0.01 mm
Total Purity GradeVacuum Grade
Total Impurities< 5000 ppm
Flexural Strength380 MPa
Vickers Hardness1700 HV
Maximum Use Temperature1700°C
Dielectric Strength15 kV/mm
Wafer Size Supported2-12 Inch
Surface OptionsFlat or Grooved
ColorIvory
ProcessIsostatic Pressing, CNC Machining, Polishing
InspectionSurface and Dimension Report
ApplicationSemiconductor Processing Equipment
Applications

These chucks serve semiconductor processing equipment including plasma etch systems, PVD and CVD deposition tools, metrology stages, wafer inspection fixtures and photolithography support stages, as well as similar handling requirements in LED and photovoltaic manufacturing.

We manufacture both OEM design chucks and replacement units for installed tools, with each part documented by serial number for process traceability.

Packaging & Quality Assurance

Polished chucks are cleaned, wrapped in cleanroom grade film and packed in foam-lined rigid cases to protect the optical quality surface during shipment.

Every chuck is delivered with a surface finish and dimensional inspection report, and cleanroom packaging options are available on request.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Importer,Exporter

  • Year Established:

    2008

  • Total Annual:

    >200000

  • Employee Number:

    >100

  • Ecer Certification:

    Verified Supplier

Our History Wuxi Special Ceramic Electrical as a leading special ceramic manufacturer,the factory is located in Chinese famous pottery town “YiXING” city about 200 km from Shanghai. From the beginning of businees ,has been dealing with export business for more than 10 years.... Our History Wuxi Special Ceramic Electrical as a leading special ceramic manufacturer,the factory is located in Chinese famous pottery town “YiXING” city about 200 km from Shanghai. From the beginning of businees ,has been dealing with export business for more than 10 years....

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  • Wuxi Special Ceramic Electrical Co.,Ltd
  • No4 Longshan Road,Xinwu District,Wuxi City,Jiangsu Province
  • https://www.al2o3ceramics.com/

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