Patent ID: 8293589
Filing Date: 2012-10-23
Classification: B41J,H01L

Abstract:
1. A method of applying encapsulant to a die mounted to a support structure, the method comprising the steps of: providing a die mounted to the support structure, the die having a back surface in contact with the support structure and an active surface opposing the back surface, the active surface having electrical contact pads and functional elements spaced from the contact pads; positioning a barrier between the contact pads and the functional elements, the barrier being proximate to, but spaced from the active surface to define a gap; depositing a bead of encapsulant onto the electrical contact pads while the barrier remains stationary, the bead of encapsulant being deposited such that a fillet of encapsulant flows through the gap towards the functional elements and a majority of encapsulant is deposited on the side of the contact pads; and removing the barrier when the bead of encapsulant has been deposited, wherein the step of positioning the barrier defines the gap to have a distance sufficient to restrict a flow of the fillet of encapsulant from reaching the functional elements.