Electric power conversion systems – Current conversion – With conductive support mounting
Reexamination Certificate
2010-10-27
2011-11-22
Nguyen, Matthew (Department: 2838)
Electric power conversion systems
Current conversion
With conductive support mounting
C257S690000
Reexamination Certificate
active
08064235
ABSTRACT:
In order to reduce parasitic inductance of a main circuit in a power supply circuit, a non-insulated DC-DC converter is provided including a circuit in which a power MOS•FET for a high-side switch and a power MOS•FET for a low-side switch are connected in series. In the non-insulated DC-DC converter, the power MOS•FET for the high-side switch is formed by a p-channel vertical MOS•FET, and the power MOS•FET for the low-side switch is formed by an n channel vertical MOS•FET. Thus, a semiconductor chip formed with the power MOS•FET for the high-side switch and a semiconductor chip formed with the power MOS•FET for the low-side switch are mounted over the same die pad and electrically connected to each other through the die pad.
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Akiyama Noboru
Matsuura Nobuyoshi
Shiraishi Masaki
Uno Tomoaki
Antonelli, Terry Stout & Kraus, LLP.
Nguyen Matthew
Renesas Electronics Corporation
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