US PATENT SUBCLASS 257 / 703
.~.~ Composite ceramic, or single ceramic with metal

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

678  DF  HOUSING OR PACKAGE {18}
701  DF  .~ Insulating material {5}
703.~.~ Composite ceramic, or single ceramic with metal

DEFINITION

Classification: 257/703

Composite ceramic, or single ceramic with metal:

(under subclass 701) Subject matter wherein the housing is a composite made up of at least two ceramic materials (e.g.,

alumina and beryllia) or of a single ceramic material with a metal.