Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Part number | 61-428059-00 |
| Manufacturer | Lam Research |
| Board revision | Rev A |
| Board designation | EIOC 1 |
| Equipment platform | VECTOR EXTREME |
| Processor type | Not confirmed |
| Operating voltage | Not confirmed |
| Communication interfaces | Not confirmed |
| Digital I/O capacity | Not confirmed |
| Analog I/O capacity | Not confirmed |
| Connector pinout | Not confirmed |
| Operating temperature | Not confirmed |
| Installation method | Equipment-specific controller board installation |
Available identification records confirm the board designation and revision, but do not provide an authoritative electrical specification or connector-level documentation.
Product Introduction
The Lam Research 61-428059-00 is a VECTOR EXTREME EIOC 1 controller board used within semiconductor manufacturing equipment. Its board-level designation identifies it as part of the equipment’s electronic control architecture. The exact expansion of EIOC and its detailed responsibilities within the machine have not been independently verified, so it should not be assigned specific motion-control, analog-processing, or communication functions without the applicable equipment documentation.

61-428059-00
For semiconductor equipment maintenance teams, matching the complete part number and PCB revision is essential. A replacement board may look similar while having different component populations, firmware, connector assignments, or machine-specific configuration. The original board identification and equipment configuration should therefore be checked before installation.
Major Features and Advantages
- Equipment-specific control hardware: Designed for the VECTOR EXTREME equipment platform rather than general-purpose PLC applications.
- Defined board identification: The 61-428059-00 part number and Rev A designation provide the primary replacement reference.
- PCB-level replacement: Supports maintenance strategies where the original control-board assembly is replaced without changing the entire equipment control architecture.
- Revision traceability: Revision verification helps prevent incorrect substitutions between visually similar assemblies.
- Legacy equipment support: Suitable for spare-parts planning where maintaining existing semiconductor processing equipment is more practical than replacing the control platform.
Application Scenarios and Field Pitfalls
Potential maintenance applications include VECTOR EXTREME equipment controller repair, electronic assembly replacement, and restoration of existing semiconductor production systems.
Before installation, verify:
- The full
61-428059-00part number. - PCB revision A and any additional assembly markings.
- Connector locations and pin assignments.
- Firmware and configuration requirements.
- Compatibility with the specific VECTOR EXTREME machine configuration.
- Whether the replacement has been tested in an equivalent system.
Do not assume that a board with a similar EIOC designation has identical functionality. Incorrect board substitution can cause equipment startup failures, communication faults, or control-system configuration errors.
Related Products and Variants
No sufficiently verified alternative part numbers or direct replacement models have been established. The Rev A designation should be retained when specifying this assembly.
Procurement and Quality Control
For a replacement 61-428059-00, request:
- Front and rear PCB photographs.
- Clear images of the OEM part-number label.
- Revision and serial-number records.
- Connector and component-condition inspection.
- Power-up and functional-test documentation.
- Confirmation of whether the board is tested, repaired, or untested.
Procurement recommendation: Specify Lam Research 61-428059-00, VECTOR EXTREME EIOC 1, Rev A. Do not approve a substitute based on the EIOC 1 description alone. Electrical specifications and machine compatibility should be confirmed against the original assembly.
