Diffusion Process Strategies for Semiconductor Devices
DOI:
https://doi.org/10.54097/6ssz2x98Keywords:
Diffusion Processes, Constant-Source Diffusion, Limited-Source Diffusion, Two-Step Diffusion, Scene Selection.Abstract
The semiconductor industry is rapidly advancing toward high precision and miniaturization. As a core process in semiconductor device fabrication, diffusion technology plays a crucial role, with its selection directly impacting device performance. This paper delves into the fundamental principles of diffusion processes in semiconductor devices, presents relevant case studies, and explores future development trends. First, the conventional diffusion process flow is introduced. Subsequently, the focus shifts to three classic diffusion techniques employed in the core diffusion step: constant-source diffusion, limited-source diffusion, and two-step diffusion. Based on their typical boundary conditions, the characteristics of these diffusion techniques are analyzed through formula-based mechanism studies. Through a comprehensive analysis of existing research findings and industrial practices, this paper not only systematically reviews the core aspects of semiconductor device diffusion processes but also provides valuable theoretical support and practical guidance for the industry to optimize process solutions and drive technological innovation in diffusion processes.
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