Since 1987, Wasco has been supplying the semiconductor market with Ultra High Purity (UHP) sensing solutions. Our customers use our UHP products in wafer fabrication equipment (gas boxes, gas sticks, chamber pressure) and facilities equipment (gas cabinets, gas panels). Wasco is ISO 9001:2015 certified, and our products are both UL recognized and CE compliant. Together, our team has over 100 years of combined experience in providing sensing solutions to the semiconductor market. 

We engineer, manufacture, and sell pressure switches that are temperature resistant, reliable, robust, and cost-effective.

Wasco Semiconductor Industry
Wasco Semicondutor Industry

At Wasco, we know that you want to feel confident in the specification process. To do that, you need a pressure sensor that meets your requirements. Most companies don’t take the time to understand the complexity of your system.

We believe it shouldn’t be so difficult. We understand how complicated the specifying process is because we’ve specified and sold hundreds of thousands of pressure sensors for customers in the fire suppression industry since 1995.

Contact us today to stop wasting time and money, and instead get exactly what you need, precisely when you need it.  

Wasco Simple Ordering
Wasco Simple Ordering

1. Tell us what you need

2. Review the specifications

Wasco Simple Ordering

3. Place an order


We design and manufacture our sensors for ultra high purity and highly corrosive environments found in next-generation semiconductor processing equipment. Rated for millions of cycles, our sensors have materials available that meet or exceed SEMI F20 (UHP) with a critical pitting temperature performance of > 35ºC. All switches, transducers, and gauges are helium leak tested to ≤ 1 x 10^(-9) std cc/sec Helium (per SEMI F1). 5Ra internal surface finish. Multiple fittings, connections, and customizable options are available. 


Gas Boxes 

IGS Gas Panels 

Gas Distribution Systems 

Gas Cabinets 

Etch & Deposition Systems 

Wasco Semiconductor Industry

Series Commonly Used In The Semiconductor Industry

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Ultra High Purity Superior

Corrosion Resistance Switches

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Ultra High Purity Superior Corrosion

Resistance Switches For Low Pressure

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Ultra High Purity Pressure Switches

ISO 5 Clean Room Assembly

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Super Purity Vacuum Switches

All-Welded Stainless Steel

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UHP Transducer

Ultra High Purity Pressure Transducers

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Ultra High Purity Vacuum Switches

ISO 5 Clean Room Assembly

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Super Purity Pressure Switches

All-Welded Stainless Steel