Description
Product Introduction
The Zygo 8070-0279-01 is a specialized power supply assembly engineered specifically for Zygo’s high-precision displacement measuring interferometers and optical metrology systems. Deployed heavily across semiconductor lithography, ultra-precision machining, and optical fabrication lines, this supply delivers clean, tightly regulated DC rails to sensitive optical measurement receivers and laser head electronics.
Standard off-the-shelf industrial power supplies often introduce ground loops and high-frequency switching noise that ruin sub-nanometer optical displacement measurements. The 8070-0279-01 mitigates EMI/RFI interference through custom-shielded enclosure housing and low-noise filtering stages, ensuring your Zygo metrology system maintains continuous fringe-counting lock without signal degradation.
Key Technical Specifications
| Parameter | Specification |
| Model | 8070-0279-01 |
| Manufacturer | Zygo Corporation / AMETEK |
| Product Category | Metrology Power Supply Assembly |
| Primary Application | Powering Zygo ZMI / Axiom measurement systems & laser heads |
| Enclosure Type | Custom metal shielded housing with heatsink fins |
| Cooling Method | Passive convection with internal heat dissipation paths |
| Input Ratings | Standard industrial AC / regulated DC input depending on chassis configuration |
| Output Characteristics | Low-noise regulated DC multi-rail output |
| Protective Features | Over-current, over-voltage, and thermal shutdown protection |
| Mounting Style | Internal chassis / rack-mountable modular assembly |
Application Scenarios & The “Trench” Experience
It is 3:00 AM on a Tuesday during a critical chip fabrication run. Your wafer stage position feedback drops offline due to an unexpected power fault on the laser measurement chassis. The tool goes down, leaving a multi-million dollar EUV scanner sitting idle while your cleanroom technicians swap boards line-by-line. In ultra-precision environments where position measurement errors are measured in picometers, you cannot afford power rail sag or switching spikes. Swapping in a pre-tested Zygo 8070-0279-01 power assembly gets your optical metrology loop locked back in without recalculating system calibration parameters from scratch.
- Semiconductor Wafer Stage Metrology – Wafer positioning feedback – Supplies clean power to optical receivers monitoring sub-nanometer stage movements.
- Precision Optical Manufacturing – Surface profiling & interferometry – Powers laser heads on automated polishing and testing benches without introducing thermal drift.
- Aerospace & Defense Calibration – Precision alignment systems – Provides stable DC power during long-duration optical reference testing.
8070-0279-01
8070-0279-01
Transparency SOP: Quality Assurance & Testing
We don’t just ship boxes; we test them on actual Zygo metrology racks.
- Inbound Inspection: Physical audit checking for PCB trace degradation, swollen capacitors, connector pin bent/oxidation state, and heat sink thermal paste integrity.
- Cold Resistance & Isolation Check: Megger testing across power transformer windings and chassis ground isolation checks.
- Power-On & Rail Load Testing: Bench powering under full rated resistive load for 4 hours to verify DC output stability and ripple voltage using an oscilloscope.
- Thermal Imaging Inspection: Infrared thermal scan under load to detect abnormal component hot spots before final packaging.
- Anti-Static ESD Packaging: Thoroughly cleaned, wrapped in anti-static ESD shielding, and packed into custom foam-padded shipping containers.
The Veteran’s Tech Trap Guide (Crucial Value-Add)
⚠️ Measure the Ripple First: If your metrology system reports intermittent phase-lock drops or erratic displacement counts, check the 8070-0279-01 outputs with a 100MHz scope set to AC coupling. Worn filter capacitors won’t always blow a fuse, but the increased voltage ripple will corrupt optical signal processing.
❗ Mind the Grounding Straps: Always ensure the module’s metal enclosure is firmly bonded to the main system chassis ground. A missing chassis ground screw can introduce a 60Hz hum into the laser receiver’s pre-amplifier circuit, causing zero-point drift.
⚠️ Check Heat Dissipation Vents: Passive convection relies on clear airflow around the heatsink housing. Never block the module’s cooling cutouts or pack cables tightly around the assembly—thermal degradation is the number one killer of these switching components.
❗ Power Down Before Harness Removal: Never yank high-current DC connectors while the unit is energized. Arcing across the Gold-plated pin contacts can ruin expensive custom interconnect harnesses. Turn off the main breaker first. Trust me on this one.
Frequently Asked Questions (FAQ for Conversion)
Q: Can I replace the 8070-0279-01 with a standard commercial 24V DIN-rail power supply?
A: No. Standard commercial power supplies generate high-frequency switching noise that interferes with delicate interferometric signal electronics. The 8070-0279-01 is engineered specifically with low-noise filtering required for sub-nanometer optical measurement.
Q: Is this power supply hot-swappable?
A: No. Pulling this supply while the system is powered will drop your laser receiver logic, potentially triggering emergency stops on high-speed motion stages and risking backplane connector damage.
Q: How do I know if my existing 8070-0279-01 power supply has failed?
A: Common symptoms include a dark power LED on the front panel, laser receiver head failure to initialize, or excessive optical phase noise reported by the motion controller software.
Q: Are these units tested under actual electrical loads before shipping?
A: Yes. Every 8070-0279-01 supply undergoes a full-load burn-in test on our bench setup to verify voltage regulation accuracy and ripple parameters before it leaves our facility.
Q: What is the warranty coverage on this surplus Zygo component?
A: We provide a full 12-month replacement or repair warranty on all our new surplus and reconditioned Zygo industrial hardware.
Start Chat
