Description
⚙️ Product Overview
The Lam Research 846-077848-858 is a JETSTREAM OPT/MSTGi Gas Box used as part of a semiconductor manufacturing equipment gas-delivery system. The gas box is associated with controlled routing and management of process gases within the equipment.
The exact unit is identified by Lam Research P/N 846-077848-858 and the JETSTREAM OPT/MSTGi designation. Because Lam Research gas boxes are equipment-specific assemblies, the complete part number should be matched before installation rather than selecting a replacement based only on the general “Jetstream Gas Box” description.
The current referenced listing identifies the unit as New – Open Box, with Lam Research as the manufacturer and 846-077848-858 as the model/part number.
🔧 Key Features
- Lam Research OEM equipment component
- Part Number: 846-077848-858
- JETSTREAM gas-delivery platform
- OPT/MSTGi configuration
- Gas box assembly for semiconductor processing equipment
- Designed for integration with the equipment’s process-gas distribution system
- Equipment-specific mechanical and gas connections
- Suitable as a maintenance or spare-parts component
- New – Open Box condition
- Exact configuration should be confirmed from the equipment documentation and nameplate
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | Lam Research |
| Manufacturer | Lam Research Corporation |
| Part Number | 846-077848-858 |
| Model | 846-077848-858 |
| Product Type | JETSTREAM Gas Box |
| Configuration | OPT/MSTGi |
| Application | Semiconductor processing equipment |
| Function | Process gas distribution / control assembly |
| System | JETSTREAM |
| Gas Connections | Configuration dependent |
| Valves / Components | Configuration dependent |
| Electrical Specification | Verify from unit nameplate |
| Pneumatic Specification | Verify from equipment documentation |
| Mounting | Equipment-specific |
| Dimensions | Not specified |
| Weight | Not specified |
| Condition | New – Open Box |
| Compatibility | Verify exact Lam Research equipment configuration |
⚡ Operating Function
A semiconductor process gas box serves as an interface between incoming gas supplies and the process equipment. Depending on the specific system configuration, the assembly can incorporate gas routing components such as valves, regulators, sensors, fittings, and associated control interfaces.
The important point with this part is that the 846-077848-858 should be treated as a complete equipment-specific assembly, not as a generic industrial gas manifold. The exact gas paths, fittings, valve configuration, pressure requirements, and control interfaces must be confirmed against the target JETSTREAM system.
Lam Research gas-box technology is used for semiconductor processing applications where controlled delivery and management of process gases are required. Lam Research has also documented gas-box designs intended to manage potentially leaking process gases within semiconductor processing equipment.
🔩 Installation & Configuration
Before installing this gas box, verify the complete equipment configuration.
- Confirm the part number 846-077848-858.
- Check the JETSTREAM and OPT/MSTGi designation.
- Compare all mechanical mounting points.
- Verify gas inlet and outlet fittings.
- Confirm gas-line routing against the equipment schematic.
- Check valve and sensor electrical connections.
- Verify applicable pressure and gas specifications.
- Inspect seals, fittings, tubing, and valve bodies before connection.
- Perform appropriate leak testing after installation.
- Complete equipment-level gas-flow and interlock checks before production use.
Gas-system work should be performed by qualified semiconductor-equipment personnel using the applicable Lam Research maintenance procedures.
🧰 Maintenance Tips
Keep the gas box protected from contamination during storage and installation. Semiconductor gas-delivery assemblies are particularly sensitive to particles, moisture, damaged seals, and incorrect fittings.
During inspection, check for:
- Damaged or contaminated fittings
- Scratched or worn sealing surfaces
- Loose tubing connections
- Valve or actuator damage
- Corrosion or contamination
- Damaged electrical connectors
- Incorrect replacement seals
- Evidence of previous gas leakage
For long-term storage, keep all ports properly protected and follow the applicable clean-storage requirements for semiconductor process hardware.
❓ Common Questions
Q1: What is Lam Research 846-077848-858?
It is a JETSTREAM OPT/MSTGi Gas Box assembly used in Lam Research semiconductor processing equipment.
Q2: Is this a PLC or electronic control board?
No. It is a gas-delivery equipment assembly rather than a conventional PLC or PCB.
Q3: What does OPT/MSTGi mean?
It identifies the particular JETSTREAM gas-box configuration. The exact internal gas-path and component arrangement should be verified from the equipment documentation.
Q4: Is this part new?
The referenced listing identifies it as New – Open Box.
Q5: Can another JETSTREAM gas box replace it?
Not automatically. Different gas boxes may have different fittings, valve arrangements, sensors, mounting details, and equipment compatibility.
Q6: Are pressure and gas specifications universal?
No. They depend on the specific Lam Research equipment configuration and process application. The applicable equipment documentation should take priority.
Q7: What should be checked before purchasing?
Match the complete part number, equipment platform, OPT/MSTGi configuration, physical connections, gas fittings, electrical interfaces, and revision information.
🔄 Recommended Lam Research Components
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- Lam Research 846-077848-725 | All-In-One Gas Box
- Lam Research 846-077848-786 | JETSTREAM Gas Box
- Lam Research 571-065780-702 | All-In-One Gas Box
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- Lam Research 839-274348-001 | Lower Loadlock Gas Supply Tube Assembly
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- Lam Research 810-495586-001 | System Interlock Board
- Lam Research 810-707103-001 | PCB Board
- Lam Research 853-040482-600 | RF Auto Match Assembly
These are related Lam Research equipment components found across available equipment-parts records; they should not be treated as direct substitutes for 846-077848-858 without configuration verification.
🏭 Application Summary
The Lam Research 846-077848-858 JETSTREAM OPT/MSTGi Gas Box is a specialized semiconductor-equipment spare designed for integration into a specific Lam Research process-gas system.
Its value as a replacement part comes from matching the original equipment configuration rather than simply matching the general gas-box category. For purchasing and installation, the 846-077848-858 part number should be matched exactly, with particular attention to gas connections, valve configuration, mounting arrangement, and equipment compatibility.
