Bipolar transistor and method of forming the bipolar...

Details Bipolar transistor and method of forming the bipolar... Bipolar transistor and method of forming the bipolar...

2011-01-04

2011-01-04

Nguyen, Kimberly D (Department: 2894)

Active solid-state devices (e.g., transistors, solid-state diode

Regenerative type switching device

Combined with field effect transistor

C257S565000

Reexamination Certificate

active

07863644

ABSTRACT:
NPN and PNP bipolar junction transistors are formed on a wafer in a fabrication process that eliminates the heavily-doped buried layers and the lightly-doped epitaxial layer by forming back side collector contacts that are electrically connected to an interconnect structure on the top side of the wafer with through-the-wafer contacts.

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