Super lattice modification of overlying transistor

Active solid-state devices (e.g. – transistors – solid-state diode – Heterojunction device – With lattice constant mismatch

Reexamination Certificate

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C257S012000, C257S015000, C257S022000, C257S183100, C257S192000, C257SE29072, C257SE29081

Reexamination Certificate

active

07112830

ABSTRACT:
The invention provides a device having a substrate, a buffer region positioned upon the substrate, wherein the buffer region has an upper buffer region and a lower buffer region, a heterojunction region positioned upon the buffer region, and a superlattice positioned between the lower buffer region and the upper buffer region, wherein the device is configured to function as a heterojunction field effect transistor.

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