A Solution to Reduce Premature Failure in Standard Exhaust Gas Sensors

One small spring for a sensor.

One giant leap for sensor longevity.

Standard exhaust gas sensors in 7F and 9F class turbines are at risk of premature failure due to vibrations caused by gas flows, input vibrations and thermal expansion mismatch.

Conax has developed the solution

Conax Technologies’ patented Spring-Loaded Exhaust Gas Sensors have a high temperature compression spring that is inserted between two spacer tubes to dampen vibrations and keep the temperature sensor tip seated within the radiation shield.

Available exclusively from Conax

Conax’s Spring-Loaded Exhaust Gas Sensors are interchangeable with OEM parts and tested to OEM specifications.

When used in 7F and 9F class turbines, these sensors have proven to significantly increase sensor life and provide thousands of hours of field operation without failures. In addition, these exclusive Conax sensors:

  • Are interchangeable with OEM parts
  • Have been tested to OEM specifications
  • Significantly increase sensor life

View our demonstration video below to find out more. If you have questions, email Rick.Lyon@ConaxTechnologies.com.

Conax Technologies announces the acquisition of Arizona-based Quartz Engineering

Conax Technologies is pleased to announce the acquisition of Quartz Engineering, a manufacturer of quartz sheaths for temperature sensors headquartered in Tempe, AZ. S. K. Choi, former President of Quartz Engineering, will stay on and help with the integration of Quartz Engineering and Conax. Choi has 40 years of experience in the semiconductor segment of the quartz industry and 20 years of experience in the fabrication of the specific type of sheaths primarily used by Conax.

This acquisition represents a commitment to improving the company’s responsiveness and the quality of products the company can provide to customers in the semiconductor industry. Conax Business Unit Manager Michael Ferraro stated, “We’re expanding our focus in the growing Semiconductor industry. Many of the temperature sensors used inside process chambers need a semiconductor-grade quartz sheath to protect them from the chemicals and temperatures present. With the acquisition of Quartz Engineering, we now have in-house capabilities to design and manufacture quartz sheaths for temperature sensors.”

Ferraro explained, “By producing the sheaths in-house, we maintain greater control over quality and supply; and we can provide our customers with the solutions they need faster.”

Manufacturing operations will remain at the Tempe, AZ facility. Headquartered in Buffalo, NY, Conax Technologies is a designer and manufacturer of standard and custom engineered temperature sensors, compression seal fittings and feedthroughs, probes, sensors, wires, electrodes and fiber optic cables. The company has locations on the US west coast, as well as in Canada, Europe and Asia.

Conax to attend the ISA Analysis Division Symposium

From April 23 through April 27, team members from Conax will visit the City of Roses in Pasadena, California to attend the 2017 ISA Analysis Division Symposium.

We’re joining Analyzer experts from around the world for presentations and conversations about the latest innovative techniques, developments and applications in the analytical sciences. We’ll discuss the latest trends and participate in trainings to inspire new ideas and innovation for our customers.

Visit us at booth #220 to see our latest line of Sample Probe Assemblies and Retractable Sensor Assemblies.

To learn more about this event, visit https://www.isa.org/ad2017.

We hope to see you there!

Conax Technologies is Hiring

Guided by our core values of Teamwork, Innovative Thinking, Integrity, Commitment, and Customer Service we continue to provide solutions to our customers throughout the world.  With our success and continued growth, we are actively looking to fill several positions:

  • Customer Service Professional
  • Marketing Analyst/Assistant
  • Engineering Manager
  • Product Design Engineer

Conax currently uses a gathering tool called Top Grading which allows candidates to provide information about their qualifications and past employment experiences. Join the Conax team, we look forward to meeting you! Visit our website to apply.


A Solution for Shell Chemical: Conax’s Retractable Sensor Assembly

To conform to the Environmental Protection Agency’s (EPA) regulation Subpart Ja for Flare Stack Sulfur Emissions, Shell Chemical in Mobile, Alabama installed a new port into a 24” pipeline. They needed to complete the job without interrupting production.

Solution: Conax’s Retractable Sensor Assembly (RSA)

Conax’s RSA with a Retractable Thermowell was installed into the pipe. The unit was designed for a flare gas flow stream at 375 ft/sec (256 miles/hr) at 50 PSIG at 850 degrees F. Shell was able to meet the EPA’s guidelines without interrupting production.

Do you have a challenge? Conax can customize a solution.

Coated TCs can lower the cost of ASM® EPSILON® reactor ownership

Recently, we announced the launch of our new EtchDefender™ coating, which is now available on all Conax quartz thermocouple sheaths for ASM® EPSILON®
reactors. Exclusively from Conax, this patent-pending technology extends the life of quartz thermocouple sheaths in ASM® EPSILON®
reactors up to 3X longer.

What does that mean for ASM® EPSILON®
reactor owners in terms of dollars and

Even though TCs coated with EtchDefender™ cost more per thermocouple, ASM® EPSILON®
reactor owners can reduce their overall spend with:

  • Lower cost of TCs—Using fewer thermocouples at a higher price point, you could lower your annual TC spend by as much as 30%.
  • Less reactor downtime—By eliminating 1 to 2 maintenance cycles, you could save $500 to $10,000 per cycle.
  • Higher wafer productivity—Wafer throughput increases by 2% to 5% for a total of $25,000+ per reactor, per year.
  • Higher wafer quality—Reduced likelihood of wafer contamination due to opening chamber for thermocouple changes is invaluable! Plus, there’s no change to the susceptor ring or recipe.

View our EtchDefender™ video below or click here to download a white paper. If you have questions, email Mike Ferraro.

ASM® and EPSILON® are registered trademarks of ASM® International. Neither Conax Technologies nor its products are affiliated with, approved by or sponsored by ASM® International.

February’s Industrial Economic Indicators Highest in Decade

The Economic Indicators have been on the rise for the last several months, and February is no exception. The highest since February 2006, this month’s numbers show promise for the industry. A number over 50 indicates increased activity or growth. Conversely, a number below 50 means less activity or growth. All numbers were over 50, and the change in number of request for quotes from December to January surpassed 60. February’s index numbers are below.

  • Change in number of request for quotes from Dec. to Jan. – 60.6
  • Change in number of orders from Dec. to Jan. – 59.5
  • Change in backlog from Dec. to Jan. – 54.8
  • Expected change in the health of the industry through Feb. – 59.7

For more information, check out Industrial Heating.

Conax to attend SEMICON China

Team members from Conax Technologies will head to Shanghai to participate in the world’s largest gathering of semiconductor experts. From March 14th through March 16th, SEMICON China brings together semiconductor professionals from all over the world to discuss the latest technology and industry trends.

In addition to over 800 exhibitors, this 3-day event will feature a variety of expert speakers from all over the world.

To learn more about SEMICON China, visit http://www.semiconchina.org.

If you’re attending, visit us at Booth 2150 in Hall W2 at the Shanghai New International Expo Centre.

Introducing ground-breaking technology for the semiconductor industry

Conax has developed exclusive, new technology that lowers the cost of ASM® EPSILON® reactor ownership.

After eight years of development and testing, Conax introduces EtchDefender™ coating that protects quartz thermocouple (TC) sheaths during the epitaxial process in ASM® EPSILON® reactors—extending TC life up to 3 times longer.
The epitaxial process takes place at one of the highest temperatures of any in the manufacturing of integrated circuits. Because the ASM® EPSILON® single-wafer epitaxial tool uniquely utilizes thermocouples that are installed inside the reactor chamber for process control, the thermocouples are exposed to two temperature cycles that can range from 600°C to 1200°C for each wafer processed.

The second temperature cycle is the etch process, which is used to clean the chamber and all the internal components with hydrochloric acid at extremely high temperatures. As thermocouples are subjected to these cycles and corrosive hydrochloric acid etches, the quartz sheath is attacked and ultimately fails, requiring a maintenance cycle to replace them.
“Our goal was to develop a solution that protects the quartz sheath during the etch process and slows devitrification to extend its life and eliminate maintenance cycles needed solely to replace thermocouples,” said Conax Technologies Business Unit Manager, Mike Ferraro. “With EtchDefender™, we hit on the right formula.”


Testing in the laboratory and at a major Fab has shown that:

  • EtchDefender™ coating is well adhered and will not flake from the quartz substrate, which causes particle contamination to the wafer.
  • The coating does not decompose, out-gas or sublimate under vacuum at high temperature.
  • EtchDefender™ greatly slows the devitrification process typical of quartz sheaths used in the EPSILON® by retarding the loss of oxygen from the SiO₂ quartz sheath at temperatures more than 900°C.
  • The coating greatly retards the erosion process caused by hot corrosive gases flowing at high concentrations and velocities. This is most relevant in extending the life of the Center Thermocouple.


“Using TCs coated with EtchDefender™ allows a tool to run continuously and reduces maintenance cycles,” said Ferraro. “This results in increased process uptime and reduced process variation for our customers, so more wafers can be produced per tool with higher consistency.”


To download our White Paper on our exclusive EtchDefender™ Technology or to view a brief video, click here.

ASM® and EPSILON® are registered trademarks of ASM® International. Neither Conax Technologies nor its products are affiliated with, approved by or sponsored by ASM® International.

Industrial Heating Economic Indicators Surpass 50 in December

Industrial Heating’s economic indicators for December were all over 50, an increase over November. A number over 50 means increased activity or growth. Conversely, a number below 50 means less activity or growth.

December’s index numbers

  • Change in number of request for quotes from Oct. to Nov. – 54.9

  • Change in number of orders from Oct. to Nov. – 51.4

  • Change in backlog from Oct. to Nov. – 50.3

  • Expected change in the health of the industry through Dec. – 55.5

The furnace and autoclave industry is one of the five market segments Conax serves. We manufacture standard and customized temperature sensors, as well as pressure and vacuum fittings and feedthroughs used on these tools.

See more about Industrial Heating’s monthly economic indicators.