Lateral transistors and methods with low-voltage-drop shunt to body diode

Methods and systems for power semiconductor devices integrating multiple quasi-vertical transistors on a single chip. Multiple power transistors (or active regions) are paralleled, but one transistor has a lower threshold voltage. This reduces the voltage drop when the transistor is forward-biased....

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Bibliographische Detailangaben
Hauptverfasser: Blanchard, Richard A, Darwish, Mohamed N, Zeng, Jun
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Methods and systems for power semiconductor devices integrating multiple quasi-vertical transistors on a single chip. Multiple power transistors (or active regions) are paralleled, but one transistor has a lower threshold voltage. This reduces the voltage drop when the transistor is forward-biased. In an alternative embodiment, the power device with lower threshold voltage is simply connected as a depletion diode, to thereby shunt the body diodes of the active transistors, without affecting turn-on and ON-state behavior.