AMAT 0100-00003 B-Sized VME Module
AMAT 0100-00003 is a high-reliability VME Stepper Drive Controller PCB designed by RadiSys for Applied Materials.
This board is a legacy powerhouse in the semiconductor industry, specifically engineered to provide precise motion control for stepper motors used in wafer handling and positioning systems.
Technical Parameter Table
| Parameter | Specification |
| Manufacturer | RadiSys / Applied Materials (AMAT) |
| Part Number | 0100-00003 |
| Alternative P/N | 0100-00077 (Cross-referenced in some systems) |
| Board Type | B-Sized VME Module |
| Function | Multi-axis Stepper Motor Drive/Control |
| Communication | VMEbus Interface |
| Status Indicators | Onboard Diagnostic LEDs (Power, Status, Fault) |
| Compatibility | AMAT Precision 5000 (P5000), Endura, Centura |
| Shipping Weight | Approx. 1.36 kg (3 lbs) |
Related Models
The 0100-00003 is often part of a VME card cage assembly that includes:
0100-09123: Wafer Sensor Board.
0100-09145: Video Interconnect Board.
0190-11528: VME-based Single Board Computer (SBC).
0100-02100: System Controller VME Board.
Application Cases
This controller is primarily used in 200mm (8-inch) legacy platforms that require extreme mechanical precision:
AMAT Precision 5000 (P5000): Controlling the robotic arms and susceptor lift mechanisms during CVD/Etch processes.
Wafer Handling Robots: Managing the micro-stepping required for smooth substrate transfer between chambers.
Slit Valve Control: Driving the stepper motors that open and close vacuum isolation valves.

0100-00003
Product Advantages and Features
Deterministic Motion: Provides micro-stepping capabilities that ensure vibration-free movement, protecting delicate wafers from sliding or breakage.
VME Architecture: Utilizes the robust, industrial-standard VMEbus, known for its reliability in high-interference cleanroom environments.
Real-Time Monitoring: Integrated feedback loops allow the system to detect motor stalls or mechanical obstructions instantly.
Long Lifecycle: Despite its age, it remains a “gold standard” for reliability, with many units still in operation after 20+ years of 24/7 service.
Other Models in the Same Series
0100-00003 Rev C: The most common revision found in refurbished and surplus markets.
0100-201xx Series: Later versions used in upgraded 300mm tool sets, though many core motion control principles remain the same.
Installation and Maintenance
Installation: Standard VME “B-size” form factor. Ensure the card is aligned with the rack guides and the ejector handles are used to seat the 96-pin DIN connectors firmly.
Note: Static electricity can destroy the onboard ICs; always use an ESD-safe workspace.
DIP Switch Settings: Many versions of this board have hardware DIP switches to set the VME base address. Ensure these match the board being replaced.
Maintenance: Check for “burnt” smell or discolored components near the motor driver transistors, as these generate the most heat. If the “Fault” LED is lit, it typically indicates a motor over-current or a communication timeout with the main CPU.
Unique Product Description
The AMAT 0100-00003 is the “muscle” behind the robotic precision of the semiconductor world’s most famous legacy tools.
While modern tools have moved toward integrated servo drives, this VME card remains essential for keeping the massive global fleet of P5000 and Endura systems running.
It is a rare example of 1990s-era engineering that is still precise enough to satisfy the sub-micron tolerances of today’s specialty fab processes.