Bipolar junction transistor with a counterdoped collector...

Active solid-state devices (e.g. – transistors – solid-state diode – Bipolar transistor structure

Reexamination Certificate

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C257S557000, C257S558000, C257S559000, C257S592000

Reexamination Certificate

active

06894366

ABSTRACT:
An improved BJT is described that maximizes both Bvceo and Ft/Fmax for optimum performance. Scattering centers are introduced in the collector region (80) of the BJT to improve Bvceo. The inclusion of the scattering centers allows the width of the collector region WCD(90) to be reduced leading to an improvement in Ft/Fmax.

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