Vacuum Gauge

Cold cathode vacuum gauge installed in PVD chamber during plasma process

How to Prevent Cold Cathode Gauge Instability During PVD Arc Events

In physical vapor deposition (PVD) processes—whether cathodic arc, magnetron sputtering, or electron-beam evaporation—uncontrolled arc events remain one of the most disruptive challenges for vacuum measurement. A single micro-arc on the target can release a dense plasma plume, generate electromagnetic interference (EMI), and send metallic droplets or ions throughout the chamber. For cold-cathode ionization gauges that […]

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Multiple vacuum gauges installed across industrial plant

Vacuum Gauge Maintenance Strategy for Large Industrial Plants

In large industrial plants—whether in semiconductor fabrication, vacuum heat treatment, scientific instrumentation, or analytical labs—vacuum gauges are mission-critical components. A single unexpected failure can halt production lines, compromise product quality, or trigger costly downtime. At Poseidon Scientific, we designed the VG-SP205 Pirani Vacuum Transmitter and VG-SM225 Cold Cathode Vacuum Gauge with durability, low cost, and

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Cold cathode vacuum gauge installed on metallizing chamber

Selecting Vacuum Gauges for Vacuum Metallizing Systems

Vacuum metallizing—whether thermal evaporation of aluminum on plastic films, decorative coatings on automotive parts, or functional layers on packaging—demands precise high-vacuum conditions to ensure uniform deposition, strong adhesion, and minimal oxidation. Base pressures of 10−5 to 10−6 Torr (or lower) are standard, with tight control throughout the pump-down, evaporation, and cool-down phases. Selecting the right

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Vacuum gauge installed on industrial vacuum forming machine

Vacuum Gauge Application in Vacuum Forming Machines

Vacuum forming remains one of the most cost-effective methods for producing large, lightweight thermoplastic parts used in automotive interiors, medical device packaging, and consumer appliance housings. Consistent part quality depends on repeatable vacuum levels, rapid pump-down, and reliable pressure feedback throughout every cycle. Poseidon Scientific’s VG-SP205 Pirani Vacuum Transmitter and VG-SM225 Cold Cathode Vacuum Gauge

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Cold cathode gauge installed on ultra-high vacuum chamber

Understanding Vacuum Gauge Noise Floor at Ultra-Low Pressure

In high-vacuum research, semiconductor processing, and advanced analytical instruments, the ability to resolve true pressure signals at 10−6 mbar (≈7.5 × 10−7 Torr) and below separates reliable vacuum monitoring from marginal performance. At these ultra-low pressures, the ion current generated by a cold-cathode gauge becomes extremely small, and any background current—whether from electronic noise, leakage,

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Vacuum gauge installed on metal additive manufacturing system

Vacuum Gauge Application in Metal Additive Manufacturing

Metal additive manufacturing—particularly electron-beam powder bed fusion (EB-PBF) and emerging vacuum laser powder bed fusion (vacuum LPBF)—relies on precise vacuum control to eliminate oxidation, stabilize the melt pool, and achieve dense, high-integrity parts from reactive alloys such as titanium, aluminum, and nickel superalloys. Chambers must rapidly reach and maintain high vacuum before energy-source ignition, then

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Pirani and cold cathode gauges installed in research lab

Designing Vacuum Monitoring for Research Laboratories

Research laboratories in universities, national labs, and R&D centers routinely handle a wide spectrum of vacuum applications—from sample preparation at rough vacuum to surface science experiments requiring high or ultra-high vacuum. Selecting the right vacuum monitoring solution can be challenging when budgets are tight, space is limited, and experiments change frequently. Poseidon Scientific’s VG-SP205 Pirani

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Vacuum gauge mounted on industrial vacuum chamber

Vacuum Gauge Performance Under Rapid Pressure Cycling

Rapid pressure cycling is a daily reality in atomic layer deposition (ALD), plasma-enhanced chemical vapor deposition (PECVD), and etch tools. Chambers swing from base pressures below 10−6 Torr to process pressures of 0.1–5 Torr and back hundreds or thousands of times per shift. Each transition stresses vacuum instrumentation, yet accurate, repeatable readings remain essential for

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Vacuum gauge installed on corrosive gas processing line

How to Protect Vacuum Gauges from Corrosive Process Gases

In semiconductor etching, chemical vapor deposition (CVD), and atomic layer deposition (ALD) tools, corrosive process gases such as chlorine and fluorine compounds rapidly degrade vacuum instrumentation. Filament corrosion, electrode contamination, and drift in pressure readings can lead to unplanned downtime, inaccurate process control, and costly sensor replacements. Poseidon Scientific’s VG-SP205 Pirani Vacuum Transmitter and VG-SM225

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Vacuum gauge mounted on ALD deposition chamber

Vacuum Gauge Integration in Thin Film ALD Systems

Atomic Layer Deposition (ALD) systems demand exceptional vacuum control to achieve self-limiting surface reactions, uniform film growth at the angstrom scale, and minimal contamination. Engineers and procurement specialists integrating vacuum instrumentation know that even minor pressure drifts or delayed response during precursor pulses can compromise throughput, film quality, and process repeatability. Poseidon Scientific’s VG-SP205 Pirani

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