A chip carrier for testing electrical performance of a passive component
includes: a core layer having a plurality of conductive traces on a
surface thereof; at least one first trace connected with the passive
component and having a first predetermined position and two ends, wherein
the two ends are respectively electrically connected to a first bond
finger on the surface of the chip carrier and to a first ball pad on an
opposite surface of the chip carrier; at least one second trace not
connected with the passive component and having two ends and a second
predetermined position located on the same surface as the first
predetermined position, one end of the second trace being electrically
connected to a second ball pad located on the same surface as the first
ball pad; and a solder mask layer applied over the conductive traces,
with the first and second predetermined positions exposed.