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Validating CO2 Tech Performance

Posted by Amanda Bunch on Apr 25, 2018 1:09:22 PM

Question: How do you know when something works really well?

Answer: When its performance can be validated in several different ways.

This holds true for CO2 technology. There are numerous ways to qualify the performance of our CO2 technology in your manufacturing operations.  For example, the following are just a few example metrological techniques that demonstrate how CO2 technology can be validated.

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Product Cleanliness

Particles and Residues

Surface and substrate contamination such as flux residues, organics, particulate matter, outgassing residues, ionic residues, and laser and mechanical machining heat is addressed (uniquely) with this technology. Available CO2 processes include one or a combination of composite jet sprays, centrifugal liquid immersion, supercritical fluid extraction, and both vacuum and atmospheric plasma surface treatments.

 

Product Performance

Bond Strength and Surface Roughness

Advanced carbon dioxide (CO2) spray cleaning technology provides various methods for consistently preparing surfaces for bonding operations. Numerous spray, immersion, and plasma CO2 treatments are available which may be combined with advanced collaborative robotics. The inherent adaptability, performance, and economy of CO2 technology provides numerous and varying manufacturing benefits.

A non-contact surface analysis device and technique called Optically Stimulated Electron Emission (OSEE) is used to analyze surfaces to determine surface quality levels before and after CO2 spray cleaning. OSEE surface inspection technology is a great way to validate CO2 Composite Spray™ for surface preparation. This process is most suited for analyzing metallic surfaces. For most metallic surfaces, the cleaner the surface the higher the OSEE photocurrent measured. OSEE can measure inorganic as well as organic contamination present on surfaces. Using OSEE before and after cleaning with CO2 composite spray is an excellent analytical and SPC technique for bonding processes, among other manufacturing processes.

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Process Performance

Adaptability and Productivity

CO2 technology eliminates or significantly reduces both lean and green waste generation at the production operation level (source) by modifying manufacturing processes such as precision cleaning and machining. Because it is safe and dry, CO2 technology can integrate directly into manufacturing processes and tools to provide in-situ cleaning and/or thermal control. CO2 technology can be implemented in a variety of process configurations to meet the constraints of lean production layouts and product flow requirements, including direct integration into existing production lines and equipment where the surface contamination is being generated. CO2 is a safe and abundant compound that plays a very important role in many commercial and industrial applications. CO2 can be used in cleaning, cooling and machining applications. Many companies have implemented CO2-based cleaning technology and have realized improved productivity and a lower cost-of-operation of their production operations.

CO2 CleanTech represents a significant business opportunity to adapt production tools and operations to meet the challenges. The merging of green practices such as CO2 technology into manufacturing is delivering additional value in the form of less chemical, energy, labor, and water usage as well as the elimination of solid wastes, air and water pollution.


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Specialized Metrology

Compatibility and Sterility

CO2 technology can be used as a solid, liquid, supercritical fluid, and both atmospheric and low-pressure plasma. CO2 is useful as a spray treatment agent, immersion and extraction solvent, as well as in the form of many hybrid or combinational substrate processing possibilities. Applications include precision degreasing, departiculation, outgassing, precision drying, disinfection, surface modification and functionalization, cooling and lubrication, among many others.

 

 

 

 

 

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Topics: Surface Preparation, CO2 Cleaning, CO2 Precision Cleaning, contamination control, CO2 Composite Spray, CO2 Technology, CO2 Testing, CO2 Analysis, OSEE

Contamination Control: Let CO2 Do The Work For You

Posted by Amanda Bunch on Sep 20, 2017 1:49:05 PM

Looking for a new innovative way to control your manufacturing contamination challenge?

Particles and other residues that accumulate on precision assemblies and support equipment during manufacturing processes must be removed to prevent yield loss. Precision cleaning is needed at various stages to control particle and other residue burden.

 

     DOWNLOAD CONTROLLED ENVIRONMENTS MAGAZINE PUBLISHED ARTICLE SEP 2012

 

The Importance of Contamination Control

Manufacturing Environment

According to Jeffrey Becker in an article entitled Implementing A Contamination Control Program, "As science progresses, the demand for cleanrooms in bio-tech, pharmaceutical, medical device, semiconductor, and nanotechnology continue to grow. As the demand for these controlled environments increases, it becomes more and more critical to develop and implement effective contamination control programs. The purpose of these programs is to ensure that any material, substance, or energy that adversely affects the product or process is eliminated, or at least, minimize to safe levels (CE Magazine, http://bit.ly/2eNspay)."

There are many factors to consider for precision cleaning and inspection operations within a cleanroom-based manufacturing process flow. Particles and residues generated during assembly and test processes accumulate on the support equipment and can transfer to subassemblies during handling, which can lead to product quality problems.  There is a need for a new way of cleaning high reliability products during manufacturing that reduces or eliminates this type of surface contamination.

 

CO2  for Precision Manufacturing

An Integrated Workflow

For an automated dry cleaning system to be acceptable, it must demonstrate high reliability, high throughput, and excellent cleaning performance at a reasonable cost. CO2 Composite Spray™ is a proven strategy for improving particle and residue cleanliness and reducing particle and residue burden.

Cleaning complex support equipment or precision assemblies can require multiple off-line operations including disassembly, removal from the cleanroom, return to the cleanroom, reassembly and calibration. In addition, some operations require processes that are batched, precision cleaned, dried and returned to the manufacturing line. Cleanroom atmospheres contain water vapor, organics, salts, and particles. These airborne contaminants can be deposited onto surfaces of critical support fixtures and assemblies being cleaned. All of these procedures are disruptive to product flow and create an additional contamination burden.

Hence, properly designed carbon dioxide cleaning systems with inert atmospheres in clean cabinets can be very effective for cleaning precision parts without having to disrupt operation flow. Carbon dioxide cleaning has unique capabilities such as CO2 conservation and control, spray impact energy control, elimination of local surface condensation and easier adaptability to automation equipment. All these factors make this technology ideal for controlling contamination in a manufacturing setting. These CO2 systems and methods adapt to cleanroom manufacturing assembly lines, production equipment, processes and can decrease maintenance burden without damage to support hardware.

 

Ready for next steps? Try our free CO2 Consultation.

REQUEST A CO2 CONSULTATION

 

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Topics: CO2 Cleaning, CO2 Precision Cleaning, contamination control, CO2 Technology

CO2 Tech Pioneers

We set the bar

For over the past 30 years, CleanLogix LLC has been the forerunner of CO2 technology exploring all facets and propelling technological evolutions. Our technology portfolio is the only of its kind, offering a breath and depth of CO2 spray, immersion and particle-plasma patents that has in turn created multiple product platforms.

Remember:

  • Over 30 years experience
  • CO2 eliminates manufacturing wastes
  • CO2 is the solution for your contamination challenges

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