Establishing Robust Control for Epoxy Open Time
Michael D. Capili *
STMicroelectronics Inc., Calamba Philippines, LISP 2 Calamba City, Laguna-4027, Philippines.
*Author to whom correspondence should be addressed.
Abstract
The Open time is called the time it takes for this chemical transition from liquid to solid. The epoxy moves into a gel state from the liquid state as it recovers, until it enters a solid-state. This article will address the development of a new, regulatory-compliant in die attach epoxy that establishes robust Epoxy Open Time control to improve the performance of product reliability with the following quality output response characteristic in Die Attach was consider; Epoxy Coverage, epoxy voids, Bond Line Thickness (BLT), and Die Shear Test (DST) strength response.
Keywords: Die Attach, open time, epoxy coverage.