Marangoni Effect-Based Under-Layer For A Dual Damascene Via-First Approach

One of the main challenges of a Dual Damascene (DD) via-first process is the control of the Critical Dimensions (CDs) in the lithography of the trenches. The PhotoResist (PhR) thickness presents variations from the via arrays to the open areas, which cause the variation of CDs: the swing effect. The planarization of a DD via-first process is reported. A dual-layer solution is used to demonst... » read more

Correlation Study of Actual Temperature Profile and In-line Metrology Measurements for Within-Wafer Uniformity Improvement and Wafer Edge Yield Enhancement

Authors: Fang Fang (a), Alok Vaid (a), Alina Vinslava (a), Richard Casselberry (a), Shailendra Mishra (a), Dhairya Dixit (a), Padraig Timoney (a), Dinh Chu (b), Candice Porter (b), Da Song (b), Zhou Ren (b) Key: (a) GLOBALFOUNDRIES, 400 Stone Break Extension, Malta, NY 12020; (b) KLA-Tencor Corporation, One Technology Drive, Milpitas, CA 95035   ABSTRACT With advances in new techn... » read more