AMAT 0190-23905 Spellman ESC High Voltage Power Supply
AMAT 0190-23905: Spellman ESC High Voltage Power Supply
The Applied Materials (AMAT) 0190-23905 is a precision High Voltage Power Supply (HVPS) module manufactured by Spellman High Voltage Electronics Corp (Model ESC5PN25X3717).
This module is specifically engineered to drive the Electrostatic Chuck (ESC) in semiconductor processing chambers.
It provides the controlled electrostatic force necessary to securely hold silicon wafers in place during critical vacuum processes like Etch, CVD, or PVD.
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Related Models
The 0190-23905 is part of the ESC5PN25 family of Spellman power supplies, which varies by specific voltage curves and connector types:
0190-02487: Spellman X3070 (ESC5PN25X3070) – Earlier generation ESC PSU.
0190-34949: Spellman X4220 (ESC5PN25X4220) – High-output variant.
0190-54693: Spellman X5363 (ESC5PN25X5363) – Modernized 300mm version.
0190-62457: Spellman X5540 – Specialized for high-bias applications.
Application Cases
This high-voltage module is vital for 300mm AMAT Producer, Centura, and Endura platforms:
Wafer Clamping: Providing the “sticking” force required to maintain thermal contact between the wafer and the cooled or heated pedestal.
Wafer De-clamping: Managing the discharge sequence to neutralize residual charge, ensuring the robotic blade can safely remove the wafer without breakage.
Plasma Etching: Maintaining wafer stability during high-energy ionic bombardment.
PECVD Processing: Ensuring uniform gas distribution by holding the wafer perfectly flat against the chuck.
Product Advantages and Features
Bipolar Operation: Allows for precise control of both positive and negative voltages, essential for neutralizing “wafer sticking” issues during high-speed production.
Low Ripple Output: Delivers exceptionally clean high-voltage power, preventing electrical noise from interfering with sensitive chamber sensors.
Fast Response Time: Capable of rapid ramp-up and ramp-down, which is critical for reducing the “overhead time” between wafer transfers and increasing tool throughput.
Integrated Safety: Features localized over-voltage and short-circuit protection to prevent damage to the expensive electrostatic chuck if an arc occurs.
Other Models in the Same Series
The Spellman/AMAT partnership covers several decades of ESC technology:
0190-0XXXX Series: Legacy 200mm VME-based tool power supplies.
0190-2XXXX Series: Standard 300mm cPCI and rack-integrated power modules.
0190-8XXXX Series: Ultra-high power DC modules (up to 20kW) for mainframe systems.
Installation and Maintenance
Installation: Ensure the 24V DC input and ground connections are secure.
The module typically mounts in a specific high-voltage rack (HV Tray). Use the high-voltage (HV) cables provided by AMAT, as standard insulation may break down.
Calibration: The module must be calibrated via the tool’s software (e.g., “ESC Calibration” utility) to ensure the commanded voltage matches the actual output measured at the chuck.
Maintenance: No user-serviceable parts inside. Periodically inspect the HV output connectors for signs of carbon tracking or “arcing” browning.
Safety Warning: This module generates lethal voltages up to 5.000V. Always use a grounding rod to discharge the HV cables before handling, even after the power is turned off.
Unique Product Description
The AMAT 0190-23905 is the “unseen anchor” of the semiconductor tool. Without the precise bipolar force provided by this Spellman-engineered module, the sub-nanometer layers of a modern chip could never be deposited or etched with uniformity.
It bridges the gap between massive industrial power and the delicate electrostatic physics required to manipulate silicon at the atomic level, making it one of the most critical spare parts for any high-volume 300mm fab.