Description
| Product model | 0090-03467 |
| Manufacturer | Applied Materials, Inc. |
| Product category | Capacitance Diaphragm Gauge (CDG) / Vacuum Pressure Sensor |
| Measurement range | Typically 0–10 Torr or 0–100 Torr (process-dependent configuration) |
| Output signal | Analog voltage (e.g., 0–10 VDC) or digital via tool controller interface |
| Accuracy | ±0.25% of full scale (typical for CDG-class sensors) |
| Operating temperature | 10°C to 50°C (tool ambient); sensor head rated for bakeout up to 120°C |
| Interface | Proprietary flange and electrical connector compatible with AMAT tool I/O |
| Material compatibility | 316L stainless steel wetted parts; compatible with Cl₂, CF₄, O₂, Ar, N₂ plasmas |
| Calibration standard | NIST-traceable, factory-performed under cleanroom conditions |
| Mounting | Tool-integrated; mounts directly to process chamber or gas box manifold |
| Application platform | Primarily used in Centura, Endura, Producer, and some DPS etch systems |
Product Introduction
The Applied Materials 0090-03467 is a high-precision capacitance diaphragm gauge (CDG) designed for critical vacuum pressure monitoring in semiconductor fabrication equipment. As a core subsystem component in Applied Materials’ flagship platforms—including Centura PVD, Endura CVD, and certain DPS etch modules—the 0090-03467 ensures accurate, repeatable pressure control during thin-film deposition and plasma etching processes. Unlike thermal or Pirani gauges, the Applied Materials 0090-03467 measures absolute pressure independent of gas composition, making it indispensable in processes involving reactive or mixed-gas chemistries.
This sensor plays a pivotal role in maintaining process window integrity. In atomic-layer deposition or high-aspect-ratio etch steps, even minor pressure deviations can alter film stoichiometry or feature profiles. The Applied Materials 0090-03467 delivers the stability and linearity required for sub-percent process repeatability across thousands of wafer cycles. Integrated directly into the tool’s gas delivery or chamber manifold, it communicates real-time pressure data to the main controller, enabling closed-loop regulation of mass flow controllers and throttle valves. For fabs running advanced nodes (28nm and below), the 0090-03467 isn’t just a spare—it’s a process enabler.
Core Advantages and Technical Highlights
Core Advantages and Technical HighlightsGas-Independent Pressure Measurement:
The Applied Materials 0090-03467 uses a metal-sealed capacitive diaphragm that deflects in response to absolute pressure—unaffected by changes in gas type, flow rate, or plasma state. This eliminates calibration drift during recipe transitions between Ar sputter, CF₄ etch, or O₂ ash steps, a common weakness of thermal sensors.
The Applied Materials 0090-03467 uses a metal-sealed capacitive diaphragm that deflects in response to absolute pressure—unaffected by changes in gas type, flow rate, or plasma state. This eliminates calibration drift during recipe transitions between Ar sputter, CF₄ etch, or O₂ ash steps, a common weakness of thermal sensors.
High Stability Under Harsh Conditions:
Built with all-metal, weld-sealed construction and 316L stainless steel wetted surfaces, the Applied Materials 0090-03467 withstands aggressive chemistries (Cl₂, NF₃, HBr) and repeated chamber bakeouts. Its design minimizes outgassing and particle generation—critical in contamination-sensitive cleanrooms.
Built with all-metal, weld-sealed construction and 316L stainless steel wetted surfaces, the Applied Materials 0090-03467 withstands aggressive chemistries (Cl₂, NF₃, HBr) and repeated chamber bakeouts. Its design minimizes outgassing and particle generation—critical in contamination-sensitive cleanrooms.
Tool-Native Integration:
Unlike third-party retrofits, the Applied Materials 0090-03467 features AMAT-specific mechanical flanges and electrical pinouts. It is recognized instantly by the tool’s diagnostics system, avoiding communication errors or false “sensor fault” alarms that delay recovery.
Unlike third-party retrofits, the Applied Materials 0090-03467 features AMAT-specific mechanical flanges and electrical pinouts. It is recognized instantly by the tool’s diagnostics system, avoiding communication errors or false “sensor fault” alarms that delay recovery.
Factory-Calibrated for Production Readiness:
Each Applied Materials 0090-03467 undergoes NIST-traceable calibration across its full range before shipment. This ensures immediate process match upon installation—no field recalibration or tuning required, reducing tool downtime during PM or changeover.
Each Applied Materials 0090-03467 undergoes NIST-traceable calibration across its full range before shipment. This ensures immediate process match upon installation—no field recalibration or tuning required, reducing tool downtime during PM or changeover.
Long-Term Drift Resistance:
Thanks to its robust diaphragm design and hermetic sealing, the Applied Materials 0090-03467 exhibits minimal zero-shift over time. Fabs report consistent performance across 12+ months of continuous operation, lowering cost-of-ownership compared to less stable alternatives.
Thanks to its robust diaphragm design and hermetic sealing, the Applied Materials 0090-03467 exhibits minimal zero-shift over time. Fabs report consistent performance across 12+ months of continuous operation, lowering cost-of-ownership compared to less stable alternatives.
Typical Application Scenarios
The Applied Materials 0090-03467 is most commonly deployed in PVD (Physical Vapor Deposition) and CVD (Chemical Vapor Deposition) chambers within Centura and Endura clusters. In copper seed layer deposition, for example, precise base pressure control (<5 mTorr) before sputtering is essential to prevent oxidation and ensure adhesion. The Applied Materials 0090-03467 provides the reliable baseline reading needed for pump-down validation and leak-check sequences.
In etch applications—particularly on DPS or Centura II platforms—the Applied Materials 0090-03467 monitors chamber pressure during high-density plasma steps where gas chemistry shifts rapidly (e.g., from Cl₂ to N₂ purge). Because it doesn’t rely on thermal conductivity, it maintains accuracy despite plasma-induced temperature swings and radical density changes. This enables tighter endpoint detection and better CD uniformity across 300mm wafers.
Additionally, during preventive maintenance or chamber requalification, a known-good Applied Materials 0090-03467 serves as a reference standard for verifying overall vacuum integrity. Its reliability makes it a go-to replacement when legacy sensors exhibit hysteresis or slow response—common failure modes that trigger nuisance aborts in high-uptime fabs.
Related Model Recommendations
Related Model Recommendations- 0090-02845: Earlier-generation AMAT CDG; may be replaced by 0090-03467 in upgraded tools
- 0090-04112: Higher-range (0–1000 Torr) variant for rough vacuum monitoring in load locks
- 0020-78931: Compatible cable harness for 0090-03467 signal transmission to I/O card
- 0190-22301: Mounting bracket/flange adapter for retrofitting into older Centura gas boxes
- MKS Baratron 627B: Third-party equivalent; requires custom interface and lacks AMAT tool recognition
- 0090-03688: Digital-output version with integrated amplifier for newer Producer platforms
- 0010-11254: Matching isolation valve assembly often serviced alongside 0090-03467
- 0090-01987: Diagnostic test fixture used by AMAT field engineers to validate 0090-03467 output
Installation, Commissioning and Maintenance Instructions
Installation preparation:
Before installing the Applied Materials 0090-03467, isolate the chamber from vacuum and vent to atmosphere using proper lockout/tagout procedures. Confirm the mating flange is clean, undamaged, and free of particulate. Use only AMAT-specified torque values (typically 15–18 in-lb) on mounting screws to avoid diaphragm stress. Ensure the electrical connector is fully seated and latched—loose connections cause intermittent pressure spikes in tool logs.
Before installing the Applied Materials 0090-03467, isolate the chamber from vacuum and vent to atmosphere using proper lockout/tagout procedures. Confirm the mating flange is clean, undamaged, and free of particulate. Use only AMAT-specified torque values (typically 15–18 in-lb) on mounting screws to avoid diaphragm stress. Ensure the electrical connector is fully seated and latched—loose connections cause intermittent pressure spikes in tool logs.
Maintenance suggestions:
During routine PMs, inspect the Applied Materials 0090-03467 for signs of corrosion, especially in chlorine-based etch modules. Although designed for harsh environments, prolonged exposure to un-pumped residues can degrade seals. If pressure readings drift or show excessive noise, perform a tool-level calibration check using a reference gauge. Never attempt to disassemble or recalibrate the Applied Materials 0090-03467 in the field—its internal cavity is sealed at the factory. Replace as a unit if performance degrades. Store spares in dry nitrogen cabinets to prevent moisture absorption in the electronics cavity.
During routine PMs, inspect the Applied Materials 0090-03467 for signs of corrosion, especially in chlorine-based etch modules. Although designed for harsh environments, prolonged exposure to un-pumped residues can degrade seals. If pressure readings drift or show excessive noise, perform a tool-level calibration check using a reference gauge. Never attempt to disassemble or recalibrate the Applied Materials 0090-03467 in the field—its internal cavity is sealed at the factory. Replace as a unit if performance degrades. Store spares in dry nitrogen cabinets to prevent moisture absorption in the electronics cavity.
