Patent ID: 7148084
Filing Date: 2006-12-12
Classification: H01L

Abstract:
1. A method of making a radiation shielding circuit device, comprising: coupling an ionizing radiation shielding top to a side wall, said side wall being coupled to a base, said base having an electronic circuit device coupled thereto; and positioning an ionizing radiation shield on said base opposite the electronic circuit device from the ionizing shielding top; wherein the ionizing radiation shielding top and the ionizing radiation shield together shield the electronic circuit device from ionizing radiation; wherein the radiation shielding top and the ionizing radiation shield each comprises a high Z material and a low Z material; wherein the thicknesses of the radiation shielding top and the ionizing radiation shield are such that the electronic circuit device receives an amount of ionizing radiation less than a total dose tolerance for the electronic circuit device; and wherein said low Z material comprises at least one of aluminum, silicon and copper.