US PATENT SUBCLASS 257 / 756
.~.~.~.~ Multiple polysilicon layers

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

734  DF  COMBINED WITH ELECTRICAL CONTACT OR LEAD {14}
741  DF  .~ Of specified material other than unalloyed aluminum {10}
750  DF  .~.~ Layered {10}
754  DF  .~.~.~ At least one layer of silicide or polycrystalline silicon {3}
756.~.~.~.~ Multiple polysilicon layers

DEFINITION

Classification: 257/756

Multiple polysilicon layers:

(under subclass 754) Subject matter wherein a layered electrical contact or lead includes multiple polysilicon layers.