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Semiconductor

Semiconductor industry, electronics and PCB production

LiquiSonic® products have proven very effective throughout the entire process in the semiconductor industry. Inline, real time monitoring provides the means to achieve maximum yield of consistent quality bathes, and to avoid product loss. The inline validation features of our systems ensure a high degree of process safety and traceability. The PFA design of our sensors minimize ion contamination.

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Bath monitoring

Inline analytical technology for cleaning, rinsing, treatment, hardening and coating

Bath monitoring | 2 MB

Online bath monitoring

Case study about the use of LiquiSonic® for continuous measurement of the cleaning agent concentration and degree of contamination in PCB cleaning baths of Bosch, "Circuits Assembly Magazine"

Online bath monitoring | 281 KB

SensoTech analyzers:

  • measure liquid concentrations in etching, coating, treatment and cleaning baths,
  • monitor the quality in photoresists,
  • control the concentration blending of covering emulsions and suspensions.

 

Unbeatable utilization rates
Where accuracy is critical, or where high pressure, high temperatures or sensitive processing environments make sampling impractical or impossible, SensoTech analyzers are ideal for monitoring inline processes. LiquiSonic sensors are engineered for tough industrial processes including Class I Division 1 Hazardous Area installations.

A rugged housing is crucial for protection and high mechanical stability. Depending on the sensor type, our housings are able to withstand temperatures up to 200 °C or 392 °F, rated pressures up to 500 bar or 7,250 psi and are resistant to lye, acids and solvents. The fundamentals for this quality are the high-grade materials used such as stainless steel, PTFE and PFA, alloy steels or tantalum. The sensor design consists of one homogenous body and requires no gaskets.

Well connected
Our sensors may be equipped with all common process adapters and fittings and can be used under the most complex application conditions. By changing immersion lengths or process adapters, our sensors fit into tanks and vessels of almost every design as well as directly in any size tube. Because the measuring technology is not dependent on color, turbidity or other optical attributes, the user will have no limitations, even under the most challenging application conditions.

Products and process may change​​​​​​​
LiquiSonic® systems can easily be adapted to accommodate various modified process conditions. The Controller software manages up to 256 various product characteristics. Depending on the user access rights, these characteristics may be activated after the sensor replacement or when process conditions change. This concept ensures the return on investment, and decrease the response time on changing boundary conditions. For new applications, a complete new calculation model can be created by using process reference values.

Individual Interfaces​​​​​​​ 
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SensoTech is able to offer all current and emerging standards of signal processing. For continuous concentration and density measurement, 4 … 20 mA in 2-wire loop powered or 4-wire technology, Profibus PA, Foundation Fieldbus, Modbus or Ethernet are available. For alarm level detection and switching a non-contact output or a digital output can be configured. SensoTech analyzers can always match installation needs.