Patent ID: 6313413
Filing Date: 2001-11-06
Classification: H01L

Abstract:
A wire structure of substrate for layout detection comprising:a substrate with a first surface and a second surface, a plurality of bonding pads, a plurality of ball pads, a plurality of traces and a plurality of holes are provided on the first surface, the traces electrically connect the bonding pads to the corresponding ball pads, the traces are arranged in the holes and connect the first surface and the second surface, the traces are arranged to pass through the corresponding holes and are conducted from the first surface to the second surface,the second surface of the substrate has a slot area in which is provided a wire for connecting to ends of the traces, thereby the wire is electrically connected to the bonding pads and the ball pads to form closed loops,wherein after the substrate is sawed to form a slot, the traces of the first surface electrically connect the bonding pads to the corresponding ball pads.