Evolution of Wafer Inspection and Review Methodology

Autor: Ellis Chang, Allen Park
Rok vydání: 2009
Předmět:
Zdroj: ECS Transactions. 18:183-186
ISSN: 1938-6737
1938-5862
DOI: 10.1149/1.3096447
Popis: Since the introduction of KLA 2000 series systems in mid 1980, Semiconductor manufacturing has widely adopted automated wafer inspection to detect defects during manufacturing to mitigate excursion and to reduce overall defect density. While the earlier emphasis in yield management was to detect the smallest defect possible, current environment calls for changes in both inspection and post processing technique that lead to identification of yield relevant defects in an efficient manner. Industry calls for intelligent way of inspecting the most critical areas on a device with high sensitivity and post inspection technique that utilizes advance techniques to generate defect pareto that highlights most important issues in defect data. Such methods are needed to meet both technical and financial goals of semiconductor companies.
Databáze: OpenAIRE