Description
Product Overview
The LAM Research 571-065780-702 is an ALL IN 1 GAS BOX assembly used in semiconductor manufacturing equipment for controlled gas delivery and pneumatic process-gas management.
The available equipment documentation identifies this assembly with system interconnect diagram 224-065780-001 and system pneumatic diagram 251-065780-077. The nameplate documentation also specifies a maximum inlet pressure of 150 PSIG and references facility requirements for systems handling flammable and toxic gases.
This is a large, integrated gas-handling assembly rather than a simple electronic module. Its construction includes valves, tubing, regulators/instrumentation, pneumatic components, and associated electrical connections within an enclosure. A secondary equipment listing also identifies the assembly as a Lam Research gas box / parts-machine component.

Key Features
- Manufacturer: LAM Research
- Model / Part Number: 571-065780-702
- Assembly designation: ALL IN 1 GAS BOX
- Integrated gas-handling enclosure
- Designed for semiconductor processing equipment
- Pneumatic and gas-control components assembled within the cabinet
- System interconnect documentation: 224-065780-001
- System pneumatic documentation: 251-065780-077
- Maximum inlet pressure identified on the nameplate: 150 PSIG
- Suitable replacement candidate for systems using the same assembly number
- Physical configuration should be matched against the original equipment before installation
Technical Datasheet
| Parameter | Specification |
|---|---|
| Brand | LAM Research |
| Part Number | 571-065780-702 |
| Assembly Name | ALL IN 1 GAS BOX |
| Equipment Category | Semiconductor Gas Box / Gas Delivery Assembly |
| System Interconnect Drawing | 224-065780-001 |
| System Pneumatic Drawing | 251-065780-077 |
| Maximum Inlet Pressure | 150 PSIG |
| Main Function | Controlled process-gas distribution / pneumatic gas management |
| Construction | Enclosed integrated gas-handling assembly |
| Application | Semiconductor manufacturing equipment |
| Listing Condition | For parts or not working |
The pressure and drawing numbers above are taken from documentation associated with the assembly nameplate. Exact valve configuration, gas-line count, electrical interfaces, and component specifications can vary by equipment configuration and should not be assumed without inspecting the individual unit.
Gas Box Function
A gas box is used to organize and control process gases between the facility gas supply and the process chamber or related semiconductor equipment.
The 571-065780-702 assembly integrates multiple gas-handling components into a dedicated enclosure. The available photographs/documentation show an internal arrangement containing tubing, valves, gauges/instrumentation, wiring, and other process-gas hardware.
This type of assembly is particularly valuable when maintaining an existing Lam Research system because replacing the complete gas-box assembly can be more practical than sourcing individual valves, fittings, pneumatic components, or internal parts separately.
Typical Applications
The assembly can be encountered in semiconductor manufacturing equipment involving controlled process-gas delivery, including:
- Semiconductor wafer processing
- Etch and clean process equipment
- Process chamber gas supply
- Pneumatic valve control
- Process-gas distribution
- Gas-line isolation and regulation
- Maintenance and spare-parts replacement for Lam Research equipment
Third-party semiconductor equipment inventories specifically list 571-065780-702 as a Lam Research gas-box assembly, alongside other Lam gas-box configurations.
Installation & Replacement
Because this assembly can be connected to process gases that may be hazardous, installation should be performed only by qualified semiconductor-equipment service personnel following the equipment manufacturer’s service procedures and facility safety requirements.
Before replacement:
- Confirm the part number is 571-065780-702.
- Compare the gas-line and pneumatic connections with the original assembly.
- Record the existing tubing and electrical connection arrangement.
- Confirm the equipment configuration and applicable system drawings.
- Isolate and depressurize the gas system according to the facility procedure.
- Verify that the replacement assembly is suitable for the intended gas service.
- Perform appropriate leak and pressure checks before returning the system to operation.
Do not treat the 150 PSIG figure as a recommended operating pressure. It is the maximum inlet-pressure marking identified in the available documentation, and actual operating limits depend on the complete equipment and gas configuration.
Maintenance & Inspection
For an installed gas-box assembly, inspection should concentrate on both the mechanical gas path and the associated control hardware.
Recommended checks include:
- Inspect tubing and fittings for damage or contamination.
- Check valves and regulators for abnormal operation.
- Inspect electrical connectors and wiring.
- Look for signs of corrosion or leakage.
- Check gauges and instrumentation for abnormal readings.
- Verify pneumatic connections remain secure.
- Perform appropriate leak testing after service.
- Compare the installed configuration with the equipment pneumatic diagram.
For semiconductor applications, cleanliness is especially important. Components should be handled according to the contamination-control requirements of the specific process and facility.
Condition & Purchasing Notes
The referenced eBay listing identifies this particular unit as “For parts or not working.”
Another equipment supplier lists the same 571-065780-702 assembly as pre-owned and notes that its units may be supplied as untested/as-is equipment.
Therefore, buyers should verify the physical condition, internal components, valve configuration, cleanliness, and completeness of the specific unit before purchase. Photos of the actual nameplate and internal assembly are useful for confirming configuration.
Identification
Brand: LAM Research
Part Number: 571-065780-702
Assembly: ALL IN 1 GAS BOX
Category: Semiconductor Gas Delivery / Gas Box Assembly
System Drawing: 224-065780-001
Pneumatic Drawing: 251-065780-077
Recommended eBay SEO Title
LAM Research 571-065780-702 ALL IN 1 GAS BOX Semiconductor Gas Delivery Assembly
Short Chinese Title
LAM 571-065780-702 | ALL IN 1 气体箱总成
