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SiC Crystal Crucibles
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SiC Crystal Crucibles - OEM Graphite Machining Manufacturer Logo
SiC Crystal Crucibles

China-based custom graphite manufacturer supporting precision machining, RFQ-defined ash targets, and export delivery planning.

Inquiry Email

[email protected]

Email app

Attach DWG, STEP, or PDF drawings and include purity, tolerance, quantity forecast, and delivery country.

Instant Chat

+8618857971991

Chat on WhatsApp

Use WhatsApp for quick engineering clarification before a formal quote.

Factory Addr:Liaoyang, Liaoning, China (Xingde Graphite manufacturing partner)

Email:[email protected]

WhatsApp:+86 18857971991

Products & Consumables
  • SiC Crystal Growth Crucible
  • TaC Coated Crucible
  • High-Purity Graphite Crucible
  • Isostatic Graphite Crucible
  • SiC PVT Crucible
  • Porous Graphite (TaC)
  • Graphite Susceptor
  • MOCVD Wafer Carrier
  • Graphite Heater
  • Graphite Hot Zone
  • PAN Carbon Felt
  • Graphite Felt Insulation
  • Rigid Carbon Felt Board
  • Graphite Crucible Lid & Cover
  • CVD-SiC Coated Susceptor
  • Semiconductor Graphite Machining
Solutions & Applications
  • SiC PVT Crystal Growth
  • SiC Wafer Manufacturing
  • Vacuum Furnace Hot Zone
  • Crystal Growth Laboratory
  • High-Temperature Furnace Consumables
OEM Capabilities
  • High-Temp Purification
  • CVD Coating Service
  • Precision Machining
  • Ash PPM & Impurity Control
  • Drawing-Based Graphite Parts
  • Inspection & Packaging
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  • Terms of Service
© 2026 SiC Crystal Crucibles. All Rights Reserved.|Manufacturing support coordinated with Liaoyang Xingde Graphite for high-purity isostatic graphite machining and purification.
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CVD-SiC Coated Graphite Susceptor

CVD-SiC coated graphite susceptors and process carriers for MOCVD, epitaxy, wafer handling, and contamination-sensitive semiconductor furnace interfaces.

Target Buyer:Epitaxy process engineers and equipment maintenance teams replacing coated graphite susceptors by drawing.
CVD-SiC coated graphite susceptor for epitaxy wafer support

Capability Highlights

  • Dense CVD-SiC barrier coating on machined graphite
  • Custom wafer pockets, gas-flow grooves, pins, and mounting interfaces
  • Coating surface map and inspection criteria reviewed before sample build

Typical Applications

  • SiC and GaN epitaxy wafer support
  • MOCVD susceptors, carriers, and chamber graphite parts
  • High-temperature semiconductor furnace interfaces where particle control matters

Engineering Focus

  • Base graphite grade, density, and surface preparation before coating
  • Pocket flatness, thermal uniformity, and wafer seating repeatability
  • Coating thickness, coverage, pinhole risk, and cleaning compatibility

Key Evaluation Matrix

MetricTypical RangeWhy It Matters
Coating RouteCVD SiC on isostatic graphite by RFQA dense coating reduces direct graphite exposure, particle risk, and corrosive gas attack in epitaxy environments.
Wafer Pocket GeometryDefined by wafer size and equipment interfacePocket flatness, support points, and balance affect wafer seating and thermal uniformity.

RFQ Checklist

  1. Susceptor or carrier drawing with wafer pocket and interface dimensions
  2. Base graphite grade, coating material, and coating thickness target
  3. Equipment model, process gases, cleaning method, and temperature window
  4. Coated and uncoated surface map with inspection acceptance criteria
  5. Prototype quantity, annual forecast, destination, and requested timeline

Risk Controls

  • Coating pinholes or exposed graphite: Define coating thickness, surface map, cleaning method, and inspection criteria before sample approval.
  • Wafer seating mismatch: Confirm equipment interface, pocket depth, flatness, pins, and rotation features against the drawing.

RFQ Pricing, Shipping, and Returns

  • Pricing: Custom B2B quotes are prepared after drawings, material grade, coating scope, quantity, packing, and delivery plan are confirmed.
  • Shipping: Export packing, Incoterms, freight method, insurance, and delivery window are quoted per RFQ and destination.
  • Returns: Made-to-drawing graphite components do not use standard consumer returns; quality claims follow the approved quotation, contract, and inspection records.

Product Gallery

SEM surface micrograph of CVD-SiC coating showing dense polycrystalline grain structure
SEM surface micrograph of CVD-SiC coating showing dense polycrystalline grain structure
Custom coated graphite susceptor for semiconductor process equipment
Custom coated graphite susceptor for semiconductor process equipment
CVD-SiC coated graphite carrier for high-temperature wafer processing
CVD-SiC coated graphite carrier for high-temperature wafer processing

Decision fit

Who should evaluate this

Epitaxy process engineers and equipment maintenance teams replacing coated graphite susceptors by drawing.

Primary proof point

Coating Route

CVD SiC on isostatic graphite by RFQ

A dense coating reduces direct graphite exposure, particle risk, and corrosive gas attack in epitaxy environments.

RFQ trigger

Data needed first

  • Susceptor or carrier drawing with wafer pocket and interface dimensions
  • Base graphite grade, coating material, and coating thickness target
  • Equipment model, process gases, cleaning method, and temperature window

Selection and Acceptance Logic

Decision GateWhat Buyers Should CheckAcceptance Evidence
Use-case fitSiC and GaN epitaxy wafer support; MOCVD susceptors, carriers, and chamber graphite parts; High-temperature semiconductor furnace interfaces where particle control mattersApplication, furnace duty, and buyer-side validation goal are confirmed before material or process route selection.
Parameter baselineCoating Route: CVD SiC on isostatic graphite by RFQ; Wafer Pocket Geometry: Defined by wafer size and equipment interfaceTarget ranges, report needs, and pass/fail criteria are written into the RFQ or sample approval plan.
Risk closureCoating pinholes or exposed graphite: Define coating thickness, surface map, cleaning method, and inspection criteria before sample approval.; Wafer seating mismatch: Confirm equipment interface, pocket depth, flatness, pins, and rotation features against the drawing.Drawing notes, inspection scope, cleaning, coating, packaging, and traceability controls are agreed before repeat supply.
RFQ completenessSusceptor or carrier drawing with wafer pocket and interface dimensions; Base graphite grade, coating material, and coating thickness target; Equipment model, process gases, cleaning method, and temperature window; Coated and uncoated surface map with inspection acceptance criteriaEngineering can return a quote direction without avoidable loops for drawing, purity, coating, quantity, or delivery gaps.

Factory Execution Path

  1. 1

    Application and drawing review

    Confirm furnace duty, drawing revision, target purity, operating atmosphere, and replacement cycle before material selection.

  2. 2

    Material and process route

    Match isostatic graphite grade, purification depth, coating route, and machining allowance to the process risk.

  3. 3

    Precision manufacturing

    Machine graphite bodies, lids, rings, heaters, carriers, and insulation interfaces against the approved drawing pack.

  4. 4

    Inspection and export readiness

    Align dimensional checks, purity report format, cleaning, vacuum sealing, cushioning, and crate requirements before shipment.

Evidence Buyers Can Request

  • Graphite grade, density, and material batch confirmation
  • Ash, impurity, or coating report format aligned before sample approval
  • Critical OD, ID, thickness, thread, groove, and flatness checks
  • Cleaning, vacuum sealing, cushioning, and export crate plan for brittle graphite parts

Claim Boundaries

  • Ash limits, density windows, coating scope, and tolerance claims are confirmed by RFQ, material grade, geometry, and inspection method.
  • Service-life, equipment-fit, and semiconductor-process suitability should be validated in the buyer furnace before repeat production.
  • Certification or compliance documents are listed in the quotation package when available; they are not implied by catalog copy.

Next Internal Links

SiC PVT crystal growth solution

Review how crucibles, hot-zone parts, and insulation fit a PVT growth workflow.

Precision graphite machining

Check the factory workflow for drawing-based graphite part production.

Inspection and packaging

Align inspection reports, sealing, cushioning, and export crate expectations.

CVD Coating Service

Open the related page to continue technical qualification.

SiC Wafer Manufacturing

Open the related page to continue technical qualification.

Inquiry Email

[email protected]

Email app

Attach DWG, STEP, or PDF drawings and include purity, tolerance, quantity forecast, and delivery country.

Instant Chat

+8618857971991

Chat on WhatsApp

Use WhatsApp for quick engineering clarification before a formal quote.

Buyer FAQ

Can you quote from an existing coated susceptor drawing?

Yes. Send the drawing, equipment interface, coating target, cleaning method, and any observed wear or particle issues.

How is this different from bare graphite susceptor supply?

The coating plan must be reviewed together with substrate grade, surface preparation, coated surfaces, and acceptance inspection, not just the machined geometry.