Semiconductor device having integrated diode

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Details

357 20, 357 34, 357 38, 357 86, H01L 2990, H01L 2906, H01L 2972, H01L 2974

Patent

active

042258740

ABSTRACT:
A semiconductor transistor device comprises a base region having a relatively thin portion with a thicker portion peripherally surrounding the relatively thin portion. A PN junction is between the base region and a collector region and includes at least one radius of curvature having the lowest breakdown voltage of the PN junction. An emitter region is in the thicker portion of the base region and an emitter electrode overlies the relatively thin portion.

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