Patent ID: 7696610

Claim:
A space radiation shielded integrated circuit apparatus, wherein the space radiation shielded integrated circuit apparatus comprises a plurality of circuit components, and is adapted for use in space, comprising: (a.) a first package layer, comprising: i. a first circuit, package; a first copper-tungsten, radiation shielding base, a first substrate, a first circuit die, a first lid, whereby the first copper-tungsten radiation shielding base shields a bottom portion of the space radiation shielded integrated circuit apparatus against incident radiation, wherein the first circuit die is attached to the first substrate, using a cyanate ester adhesive, wherein the first circuit package is soldered to the first copper-tungsten radiation shielding base, using a high-temperature copper-silver solder, wherein the first substrate is attached to the first circuit package, using a cyanate ester adhesive; wherein the first lid is soldered to the first package layer, using a high-temperature gold-tin solder; (b.) a second package layer, comprising: i. a second substrate, a second circuit package, a second circuit die, and a second copper-tungsten radiation shielding base, wherein the second circuit die is attached to the second substrate, using a cyanate ester adhesive, wherein the second copper-tungsten radiation shielding base is attached to the second circuit package, using a high-temperature copper-silver solder, wherein the second substrate is attached to the second circuit package, using a cyanate ester adhesive; wherein a top of the second package layer is attached to a bottom of the first package layer, using a high-temperature gold-tin solder, thereby forming electrical, interconnects, whereby the first package layer and the second package layer are in electrical communication.