Detecting defects that reduce breakdown voltage using machine learning and optical profilometry.

ABSTRACT: Semiconductor wafer manufacturing relies on the precise control of various performance metrics to ensure the quality and reliability of integrated circuits. In particular, GaN has properties that are advantageous for high voltage and high frequency power devices; however, defects in the substrate growth and manufacturing are preventing vertical devices from performing optimally. This paper explores the application of machine learning techniques utilizing data obtained from optical profilometry as input variables to predict the probability of a wafer meeting performance metrics, specifically the breakdown voltage (V_bk). By incorporating machine learning techniques, it is possible to reliably predict performance metrics that cause devices to fail at low voltage. For diodes that fa

SUBMITTER: Gallagher JC 

PROVIDER: S-EPMC10978952 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature