Abstract: A semiconductor package includes: a die pad having opposing first and second sides and lateral sides connecting the first and second sides; at least one semiconductor die arranged over the first side; an encapsulation including a first dielectric material and encapsulating the semiconductor die, the second side of the die pad being at least partially exposed from the encapsulation; and a contiguous isolation structure including a second dielectric material different from the first dielectric material and covering the second side of the die pad. The encapsulation includes at least one first trench arranged along at least a part of a contour of the second side of the die pad. The second side of the die pad includes at least one second trench arranged along at least a part of the contour of the second side of the die pad. The trenches are filled by the contiguous isolation structure.

Abstract: A method for fabricating a power semiconductor package includes: providing a leadframe having a die pad and a frame, wherein the die pad is connected to the frame by at least one tie bar; attaching a semiconductor die to the die pad; laser cutting through the at least one tie bar, thereby forming a cut surface; and after the laser cutting, molding over the die pad and the semiconductor die, wherein the cut surface is completely covered by molding compound.