Applied Materials NITRIDE550 Blocker 0021-39748 | Replacement, Equivalent & Selection Guide
The Applied Materials NITRIDE550 Blocker (Part Numbers: 0021-39748 / 0020-08494 / 0050-34816) is a precision CVD chamber component used in semiconductor thin-film deposition systems. This blocker plate plays a critical role in controlling gas flow distribution within the NITRIDE550 process chamber, directly impacting film uniformity and deposition quality. Konmask.com supplies this part with full traceability for MRO and production-critical applications.
Technical Specifications
- Manufacturer: Applied Materials (AMAT)
- Part Numbers: 0021-39748 / 0020-08494 / 0050-34816
- Series / Platform: NITRIDE550 CVD System
- Component Type: Blocker Plate (Gas Distribution)
- Material: Aluminum alloy / anodized surface (OEM specification)
- Function: Controls and distributes process gas flow uniformly across the wafer surface in CVD deposition chambers
- Condition: New (OEM-equivalent or genuine)
- Weight: ~150 g
- Compatibility: Applied Materials NITRIDE550 CVD platform
Compatible Replacement & Equivalent Models
The following part numbers are cross-referenced as direct replacements or functional equivalents for the NITRIDE550 Blocker:
- 0021-39748 – Primary OEM part number
- 0020-08494 – Alternate / superseded part number
- 0050-34816 – Assembly-level reference number
- Third-party aftermarket blockers compatible with NITRIDE550 chamber geometry (contact us for cross-reference verification)
Always verify chamber revision and process kit configuration before ordering a replacement blocker.
Why Choose the Original Model
- Precision gas distribution: OEM geometry ensures uniform film thickness across 200mm wafers
- Process stability: Maintains consistent deposition rates and reduces particle generation
- Certified dimensions: Machined to AMAT drawing tolerances for drop-in fit
- Reduced downtime: Direct replacement minimizes chamber qualification time vs. non-OEM alternatives
- Traceability: Full lot documentation available for ISO-controlled fabs
Typical Applications
- Silicon nitride (Si₃N₄) thin-film deposition on 200mm wafers
- PECVD / LPCVD process chambers in semiconductor front-end-of-line (FEOL) manufacturing
- Scheduled preventive maintenance (PM) kit replacement
- Chamber recovery after particle excursion or process drift events
- Spare parts inventory for high-volume fabs running NITRIDE550 tools
System Compatibility
- Platform: Applied Materials NITRIDE550 CVD System
- Chamber type: Single-wafer CVD process chamber
- Wafer size: 200mm (8-inch)
- Related process kits: Compatible with standard NITRIDE550 PM kits including showerhead, liner, and susceptor assemblies
- Not compatible with: PRODUCER, Centura, or 300mm platform chambers without engineering verification
Selection Guide
Use the following criteria to select the correct blocker for your application:
- Step 1 – Confirm platform: Verify your tool is an Applied Materials NITRIDE550 (not NITRIDE600 or DXZ)
- Step 2 – Check part number: Cross-reference your current part tag against 0021-39748, 0020-08494, or 0050-34816
- Step 3 – Verify chamber revision: Some chamber revisions use updated blocker geometries — provide your chamber serial number for confirmation
- Step 4 – OEM vs. aftermarket: For critical process layers, OEM is recommended; for non-critical or development tools, qualified aftermarket may be acceptable
- Step 5 – Lead time: Contact Konmask for stock availability and expedite options
Quality Assurance & Sourcing
- Parts sourced from authorized distributors, certified refurbishers, and OEM surplus channels
- Each unit inspected for dimensional integrity and surface condition prior to shipment
- Packaging: anti-static bag + foam-lined box, cleanroom-compatible on request
- Documentation: CoC (Certificate of Conformance) available; OEM CoA on genuine parts
- Export compliance: ECCN classification reviewed for international shipments
How to Order
- Add to cart directly, or contact us for bulk / urgent orders
- Provide your tool serial number or chamber ID for compatibility confirmation
- Request a quote for volume pricing (>3 units)
- Lead time: In-stock items ship within 1–3 business days; sourced items 5–15 business days
- Payment: T/T, PayPal, credit card accepted
📧 support@konmask.com | 📞 +0086 19859288691
Replacement & Compatibility FAQ
Q: Can 0020-08494 directly replace 0021-39748?
A: Yes, 0020-08494 is a superseded part number for the same blocker assembly. Both are functionally interchangeable on standard NITRIDE550 chambers.
Q: Is 0050-34816 the same part?
A: 0050-34816 is an assembly-level reference that includes the blocker. Confirm with your BOM whether you need the blocker alone or the full assembly.
Q: How often should the blocker be replaced?
A: Typically every 200,000–500,000 RF hours or per your fab’s PM schedule. Particle counts and deposition rate drift are key indicators.
Q: Do you supply aftermarket equivalents?
A: Yes. Contact us with your chamber configuration for a qualified aftermarket cross-reference and pricing comparison.
Q: Can this part be used on 300mm tools?
A: No. The NITRIDE550 is a 200mm platform. 300mm equivalents require different part numbers — contact us for guidance.
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Contact: support@konmask.com | +0086 19859288691
