Method and apparatus for shielding an integrated circuit from radiation

摘要

A method of shielding an integrated circuit device comprises:
forming a cavity in a base;
forming a radiation shielding coating layer within the cavity in the base;
coupling the integrated circuit device to the radiation shielding coating layer; and coupling a radiation shielding lid to the integrated circuit device package such that there is no line of sight angle at which x-rays could reach the integrated circuit device. Further described is a radiation shielding integrated circuit device which comprises: a base;
a first x-ray shielding layer coupled to the base;
a second x-ray shielding layer coupled to the base;
a first circuit die coupled to the first x-ray shielding layer;
a second circuit die coupled to the second x-ray shielding layer;
a radiation shielding top coupled to the base; and
a radiation shielding bottom coupled to the base;
wherein the thickness of the x-ray shielding layer is selected to shield the first circuit die from receiving an amount of x-rays greater than the total dose tolerance of the first circuit device;
wherein the thickness of the second radiation shielding tub is selected to shield the circuit die receiving an amount of x-rays greater than the total dose tolerance of the second circuit device.