Search Results - physical+sciences+%3e+testing+equipment

5 Results Sort By:
Rapid optical metrology of critical dimensions of large-area nanostructure arrays with complex patterns
Background Scatterometry-based metrology has the capability to perform high-throughput inspection of geometric characteristics of large-area nanopatterned surfaces. It utilizes physics-based dependencies between reflectance of light scattered from nanopatterned surfaces for pre-defined set of wavelengths and Critical Dimensions (CDs) of such nanopatterns. Current...
Published: 8/16/2024   |   Inventor(s): Dragan Djurdjanovic, Ramin Sabbagh
Keywords(s):  
Category(s): Physical sciences > Semiconductor, Physical sciences > Testing equipment, Computer > Algorithms and software methods, Computer > AI/ML
Optical control of nanoparticles on solid substrates
Background Colloidal particles are becoming an increasingly prevalent feature in many emerging technologies. The ability to control these particles and construct them into desired nanostructures for functional devices is necessary to realize their benefits in real-world applications. Many existing technologies to control colloidal particles function...
Published: 12/11/2023   |   Inventor(s): Yuebing Zheng, Jingang Li
Keywords(s): Laser, Optical
Category(s): Physical sciences > Testing equipment
Wafer alignment with AFM metrology
Background One of the major challenges in nanoscale manufacturing is defect control. Optical inspection is not an option at the nanoscale level due to the diffraction limit of light, and without inspection high scrap rates can occur. One solution to this problem is inline metrology using atomic force microscopes (AFM). Single chip MEMS based AFMs have...
Published: 7/11/2024   |   Inventor(s): Michael Cullinan, Tsung-Fu Yao, Andrew Duenner
Keywords(s):  
Category(s): Physical sciences > Semiconductor, Physical sciences > Testing equipment
Tunable ionization platform
Background Different molecules have different ionization energies. Commercially available photo-ionization detectors (PIDs) emit light to ionize the molecules of interest. However, these PIDs require distinct lamps dependent upon the ionization energy required. In fact there are four types of lamps available, each with a different, fixed ionization...
Published: 12/11/2023   |   Inventor(s): Tanya Hutter, Vinaya Basavarajappa
Keywords(s):  
Category(s): Physical sciences > Testing equipment, Physical sciences > Environment
Independently actuated AFM probes for nanoscale measurement
Background The development of accurate surface imaging is key to implementing an effective metrology strategy to manage defect detection in high volume electronic device fabrication. Measurement of manufacturing processes can be performed either in-line, as part of the manufacturing process, or off-line in a separate process. Unfortunately, no methods...
Published: 7/11/2024   |   Inventor(s): Michael Cullinan, Liam Connolly
Keywords(s):  
Category(s): Physical sciences > Testing equipment