Process Improvement Through Modification of Overload Sensor in Singulation Station
Journal: International Research Journal of Advanced Engineering and Science (Vol.4, No. 4)Publication Date: 2020-08-15
Authors : Edwin M. Graycochea Jr Bryan Christian S. Bacquian Ernesto T. Antilano Jr.;
Page : 98-99
Keywords : Singulation; Package crack; sensor; semiconductor; QFN (Quad Flat No-leads);
Abstract
Singulation process in semiconductor assembly manufacturing is a process typically performed to separate integrated circuit packages such as IC chips from a substrate / leadframe in order to form the individual units. Package crack is one of the top rejects at package singulation process and this trigger to have a big impact affecting process yield of the product lot. Illustrated in Fig. 1 is the Assembly process flow of QFN (Quad Flat No leads) and as enclosed by a red dotted line is the process where rejects occur.
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