The specification describes an integrated passive device (IPD) that is
formed on a polysilicon substrate. A method for making the IPD is
disclosed wherein the polysilicon substrate is produced starting with a
single crystal handle wafer, depositing a thick substrate layer of
polysilicon on one or both sides of the starting wafer, forming the IPD
on one of the polysilicon substrate layers, and removing the handle
wafer. In a preferred embodiment the single crystal silicon handle wafer
is a silicon wafer rejected from a single crystal silicon wafer
production line.