US PATENT SUBCLASS 257 / 677
.~ Of specified material other than copper (e.g., Kovar (T.M.))

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

666  DF  LEAD FRAME {10}
677.~ Of specified material other than copper (e.g., Kovar (T.M.))

DEFINITION

Classification: 257/677

Of specified material other than copper (e.g., Kovar (T.M.)):

(under subclass 666) Subject matter wherein the electrically conductive lead frame is made up of a specific material other copper, which is a common material for lead frames.