This paper will review the challenges on large format encapsulation with respect to the control of mold cap thickness, and the encapsulant impact on moldability such as flow mark on final product. Control of mold co-p...This paper will review the challenges on large format encapsulation with respect to the control of mold cap thickness, and the encapsulant impact on moldability such as flow mark on final product. Control of mold co-planarity is best performed dynamically during molding, otherwise it would be challenging to obtain good co-planarity within 20 μm. Moldability demand such as encapsulant coverage with highly viscous material, flowability and flow mark will be discussed. Warpage control depends heavily on the formulation of the encapsulant and the form of encapsulant, i.e., granular/powder, liquid and sheet.展开更多
文摘This paper will review the challenges on large format encapsulation with respect to the control of mold cap thickness, and the encapsulant impact on moldability such as flow mark on final product. Control of mold co-planarity is best performed dynamically during molding, otherwise it would be challenging to obtain good co-planarity within 20 μm. Moldability demand such as encapsulant coverage with highly viscous material, flowability and flow mark will be discussed. Warpage control depends heavily on the formulation of the encapsulant and the form of encapsulant, i.e., granular/powder, liquid and sheet.
