Patent ID: 11882659
Assignee: RAYTHEON COMPANY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A substrate assembly, comprising:
a substrate including:
a base substrate having a plurality of base circuit traces mounted directly thereon for supporting a chip assembly; and
an intermediate substrate mounted directly on the base substrate adjacent the plurality of base circuit traces, the intermediate substrate having a plurality of intermediate circuit traces mounted thereon, each of the plurality of intermediate circuit traces being wirebonded to a respective one of the plurality of base circuit traces; and

a feedthrough device having a plurality of feedthrough circuit traces mounted thereon, each of the plurality of feedthrough circuit traces being wirebonded to a respective one of the plurality of intermediate circuit traces;
wherein a material of the base substrate has a first thermal conductivity and a material of the intermediate substrate has a second thermal conductivity that is lower than the first thermal conductivity.