Semiconductor
Since 1989, 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.


At Wasco, we know that you want to feel confident in the specification and delivery of your pressure sensors. In order to feel confident, you need a communicative and responsive supplier. The problem is, most companies don't take the time to communicate clearly during the specification and delivery stages. We believe that specifying a pressure sensor shouldn't be stressful. Since 1989, we've specified over 6000 unique pressure sensors, and we have a dedicated team to provide you with all the information you need along the way.
Here’s how it works:
1. Tell our team what you need
2. Our expert team will review and answer all your questions
3. Place an order, sit back and relax
You shouldn't have to deal with unresponsive suppliers. Contact the Wasco team to have all your questions answered and get exactly what you need.
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 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.
TYPICAL APPLICATIONS
Gas Boxes
IGS Gas Panels
Gas Distribution Systems
Gas Cabinets
Etch & Deposition Systems

Series Commonly Used In The Semiconductor Industry
UC8
Ultra High Purity Superior
Corrosion Resistance Switches
UHP150
Ultra High Purity Pressure Switches
ISO 5 Clean Room Assembly
SV120
Super Purity Vacuum Switches
All-Welded Stainless Steel
UC9
Ultra High Purity Superior Corrosion
Resistance Switches For Low Pressure
UHP160
Ultra High Purity Vacuum Switches
ISO 5 Clean Room Assembly
SP120
Super Purity Pressure Switches
All-Welded Stainless Steel