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Chemical Synthesis & FormulationSynthesis & Production

Dry Deposition™

By Canatu

Canatu's patented Dry Deposition™ technology surpasses conventional wet methods, setting a new standard for CNT production. This approach eliminates the need for harsh steps involved in traditional wet dispersion, preserving the exceptional properties of CNTs. Canatu's Dry Deposition™ method produces incredibly long and pristine CNTs, offering significant advantages over traditional wet dispersion. While wet dispersion requires multiple complex steps, Dry Deposition™ offers a simpler, faster, and more cost-effective process, yielding high-purity, strong CNTs. Dry Deposition™ outperforms wet dispersion by simplifying the process, yielding longer and cleaner CNTs, and creating highly uniform CNT networks. Dry Deposition™ of carbon nanotubes ensures that your products perform precisely as intended. Our method yields longer, cleaner, and nearly defect-free CNTs with superior uniformity, transmittance, conductivity, electrochemical sensitivity, and tensile strength. This is because the electrical conductivity and tensile strength of the tubes increase with their length and purity, thereby enhancing performance across various applications. For example, semiconductor fabricators can leverage Canatu's Dry Deposition™ method to produce CNT membranes with exceptional uniformity and high EUV light transmittance, benefiting various applications including EUV pellicles, debris filters, and optical filters. This can lead to a 15% increase in performance (measured in wafers per hour) for EUV pellicle application and substantial cost savings by reducing the need for expensive lithography tools. Dry Deposition™ Canatu completely bypasses the ultrasonication and liquid dispersion steps. In our cutting-edge Dry Deposition™ method, carbon nanotubes are deposited on a collection filter at room temperature. This yields longer, cleaner, and virtually defect-free CNTs with superior uniformity, transmittance, electrical conductivity, and tensile strength, thereby enhancing performance across various applications. Over 10x stronger than steel Dry Deposition™ results in superior tensile strength preserving the pristine, long structure of the CNTs, enhancing load transfer and minimizing defects in the membrane. This yields mechanical properties approaching the intrinsic strength of individual CNTs of over 10 times stronger than steel. Wet dispersion causes aggregation, contamination, and shorter lengths, compromising membrane strength and performance. The high modulus of elasticity ensures superior structural stability, vibration resistance, and long-term durability, ideal for demanding semiconductor filtration applications. 3x higher conductivity Electrical conductivity and high transparency are key properties for optoelectronic devices. Comparing equivalent sheet resistance values of transparent conductive films fabricated via dry and wet methods reveals that Dry Deposition™ results in conductivity over three times higher. The extraordinary low sheet resistances underscore the tremendous potential for transparent conductive film applications using dry deposited single-walled CNTs (SWCNTs). Over 10x higher sensitivity Our patented Dry Deposition™ results in over 10x higher electrochemical sensitivity compared to our competition. This superior sensitivity has been proven in in vitro matrices. The technology allows us to produce CNTs with uniquely extensive and pristine reaction surfaces. This enormous three-dimensional surface area offers many binding sites for the biorecognition elements to interact with the target analyte enabling stronger signals, even in complex matrices. Novel Dry Deposition revolutionizes CNTs Canatu's patented Dry Deposition™ method unlocks the full potential of carbon nanotubes (CNTs) with significant implications for the semiconductor industry. This method simplifies CNT manufacturing by reducing steps and cycle time, producing longer, pristine CNTs with superior EUV transmission, tensile strength, and highly uniform CNT networks compared to the traditional wet dispersion process. Dry Deposition™ simplifies the process Canatu's patented Dry Deposition™ method outperforms wet dispersion by simplifying the process and yielding cleaner, longer carbon nanotubes and highly uniform CNT networks, thereby enhancing the performance of end applications. Canatu's approach eliminates multiple complex process steps that can compromise the quality of CNTs. FC-CVD synthesis Canatu synthesizes CNTs using the floating catalyst chemical vapor deposition (FC-CVD) process. Compared to other methods, FC-CVD stands out as a low-cost, highly controllable, and scalable process for creating cutting-edge CNTs for industry-transforming products. During FC-CVD, CNT growth is initiated by introducing carbon gases into the reactor. The furnace is then heated to vaporize and decompose the carbon gases, leading to catalyst particles forming at the top of the reactor. These particles float down the reactor with a carrier gas toward the collection filter. As they drift down the reactor, CNTs start to grow on the catalyst particles. Dry Deposition™ The CNTs are dry deposited onto the collection filter under atmospheric conditions. Transfer Subsequently, CNTs are transferred from the collection filter onto either a plastic substrate, creating a conductive film, or a frame, creating a membrane. Post-processing The membrane goes through post-treatment to further improve its properties.