Patent ID: 8258010

Claim:
A method of making a semiconductor device, comprising: providing a temporary carrier; mounting a plurality of semiconductor die over the temporary carrier separated by a peripheral region; depositing an insulating material in the peripheral region; removing the temporary carrier; removing a first portion of the insulating material of the peripheral region to form a first circular hole having a first depth, the first depth less than a thickness of the insulating material; removing a second portion of the insulating material of the peripheral region over the first circular hole to form a second circular hole to a second depth less than the first depth, the first and second circular holes constitute a composite through organic via (TOV) having a first width in a vertical region of the first circular hole and a second width in a vertical region of the second circular hole, the second width being different from the first width; depositing a conductive material in the composite TOV to form a conductive TOV; planarizing a backside of the semiconductor die and a backside of the insulating material to remove a portion of the semiconductor die and a portion of the insulating material to expose the conductive TOV; forming a conductive layer between the conductive TOV and a contact pad of the semiconductor die; and singulating the insulating material through the peripheral region to separate the semiconductor die.