Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2007-07-17
2007-07-17
Doan, Theresa T. (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S401000
Reexamination Certificate
active
11144569
ABSTRACT:
A semiconductor component and method of manufacture, including an insulated gate bipolar transistor (IGBT) (100, 200, 300, 400) that includes a semiconductor substrate (110, 210, 310, 410) having a first conductivity type and buried semiconductor region (115, 215, 315, 415) having a second conductivity type located above the semiconductor substrate. The IGBT further includes a first semiconductor region (120, 220, 320, 420) having the first conductivity type located above the buried semiconductor region, a second semiconductor region (130, 230, 330, 430) having the first conductivity type located above the first semiconductor region, a third semiconductor region (140, 240, 340, 440) having the second conductivity type located above the first semiconductor region, an emitter (150, 250, 350, 450) having the first conductivity type disposed in the third semiconductor region, and a collector (170, 270, 370, 470) having the first conductivity type disposed in the third semiconductor region. In a particular embodiment, the third semiconductor region and the buried semiconductor region deplete the first semiconductor region in response to a reverse bias applied between the second semiconductor region and the third semiconductor region.
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Bose Amitava
Khemka Vishnu K.
Zhu Ronghua
Doan Theresa T.
Freescale Semiconductor Inc.
Ingrassia Fisher & Lorenz
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