Description
The Lam Research 685-151520-102 is an MC4 controller module utilized within Lam Research semiconductor processing equipment (such as plasma etch and deposition toolsets). It manages critical subsystem communication, machine automation sequencing, and real-time interface control across internal tool architectures.
Procurement and Availability
- Availability: Typically available on an exchange, repair, or rebuilt basis through specialized semiconductor equipment surplus channels
- Standard Lead Time: 2 to 4 weeks for testing, refurbishment, and recalibration services
- Warranty: 6-month or 12-month vendor warranty depending on service level (verify with supplier upon order)
- Condition: Refurbished / Rebuilt Tested (Service Exchange format is common for this part number)
- Pricing Notice: Listed price is indicative and subject to market availability and core exchange status. Contact our sales desk for a formal quotation.
Technical Specifications
| Parameter | Value |
| Manufacturer | Lam Research |
| Product Series | MC4 Controller Architecture |
| Part Number / ID | 685-151520-102 |
| Product Type | Subsystem Controller / Interface Board Module |
| Primary Application | Lam Research Etch/Deposition Tool Platforms |
| Communication Interface | Ethernet / Serial internal tool network |
| Operating Temperature | +15 to +40°C (Controlled cleanroom environment specification) |
| Enclosure Type | Rack-mount / Card-cage plug-in module |
Engineering and Integration Context
When replacing or servicing an MC4 controller like the 685-151520-102 inside a Lam Research processing tool, strict adherence to tool calibration and ESD safety procedures is required.
- Core Exchange & Rebuild Status: Due to the legacy nature of specific semiconductor tool modules, units are frequently handled on a rebuild-exchange basis. Ensure that the failed core matches the exact revision string to avoid backplane communication mismatches.
- Firmware and Configuration: Verify that any system-specific parameters, jumpers, or non-volatile memory profiles match the host tool configuration before putting the equipment back into production.
- Handling Precautions: Use an ESD-safe grounded workstation when handling the bare board or card cage module to protect sensitive surface-mount microprocessors and communication transceivers.
Frequently Asked Questions
Q: Is the 685-151520-102 available as a brand-new factory-sealed item?
A: Factory-new units are rarely available due to component obsolescence. Most inventory is supplied as factory-serviced, refurbished, or on a rebuild-exchange program.
Q: Does installing this controller require tool-level software re-initialization?
A: Depending on the specific sub-module version and tool software revision, host communication paths and system calibration files must be verified through the tool workstation interface post-installation.




