Integrating Multimodal Microscopy and Artificial Intelligence Solutions for Laser Dicing Process Induced Defect Identification

Tuesday, October 29, 2024: 1:20 PM
204 (Hilton San Diego Bayfront)
Dr. Flavio Cognigni , Carl Zeiss SpA, Milan, Italy
Dr. Domenico Mello , EM Microelectronic, a Company of the Swatch Group, Marin-Epagnier, Switzerland
Dr. Heiko Stegmann , Carl Zeiss Microscopy GmbH, Oberkochen, Germany
Dr. Anton du Plessis , Comet Technologies Canada Inc., Montreal, QC, Canada
Dr. Guillaume Fiannaca , EM Microelectronic, a Company of the Swatch Group, Marin-Epagnier, Switzerland
Dr. Philippe Von Gunten , EM Microelectronic, a Company of the Swatch Group, Marin-Epagnier, Switzerland
Prof. Marco Rossi , Sapienza University of Rome, Rome, Italy
Dr. Giulio Lamedica , Carl Zeiss SpA, Milan, Italy

Summary:

In semiconductor manufacturing, the process of laser dicing can result in a loss of yield due to defects associated to the laser interaction with the sample. These defects can be difficult to identify, especially before a proper tuning of the process. Traditional investigation methods, like infrared (IR) inspection and focused-ion beam scanning electron microscopy (FIB-SEM) analysis, are labor-intensive and may lack comprehensive insights. Here, we propose a robust correlative microscopy (CM) workflow integrating IR, X-ray Microscopy (XRM), and FIB-SEM tomography with 3D energy dispersive X-ray spectroscopy (EDX) analyses, leveraging artificial intelligence (AI) driven algorithm for time- and quality-improved dataset reconstruction, automatic segmentation, and defect site identification. Our approach streamlines defect identification, preparation, and characterization. Through AI-enhanced methodologies, as well as femtosecond (fs) laser, we optimize investigation efficiency and extract crucial information about defects properties and evolution. Our research aims to advance semiconductor failure analysis by integrating AI for enhanced defect localization and high-quality 3D dataset acquisition in the realm of laser dicing processes.