SWITCHING ELEMENT FOR POWER CONVERSION, AND POWER CONVERSION DEVICE

Title:

SWITCHING ELEMENT FOR POWER CONVERSION, AND POWER CONVERSION DEVICE

Document Type and Number:

WIPO Patent Application WO/2014/038064

Kind Code:

A1

Abstract:

In a switching element (100) for power conversion, the following components are repeatedly arranged on the front surface side of an n--type semiconductor substrate (1) in the following order: a first gate electrode (6); a p-type channel layer (2) having an n-type emitter region (3); a second gate electrode (13); and a p-type floating layer (15). The space (a) between the two gates (6, 13) sandwiching the p-type channel layer (2) is configured to be smaller than the space (b) between the two gates (13, 6) sandwiching the p-type floating layer (15). Drive signals having a time lag in the driving timing are supplied to the first gate electrodes (6) and the second gate electrodes (13).

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Inventors:

HASHIMOTO TAKAYUKI (JP)
MORI MUTSUHIRO (JP)
MASUNAGA MASAHIRO (JP)

Application Number:

PCT/JP2012/072905

Publication Date:

March 13, 2014

Filing Date:

September 07, 2012

Export Citation:

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Assignee:

HITACHI LTD (JP)
HASHIMOTO TAKAYUKI (JP)
MORI MUTSUHIRO (JP)
MASUNAGA MASAHIRO (JP)

International Classes:

H01L29/78; H01L27/04; H01L29/739

Foreign References:

JP2005191221A	2005-07-14
JP2000307116A	2000-11-02
JP2000101076A	2000-04-07
JP2004319624A	2004-11-11

Attorney, Agent or Firm:

ISONO Michizo (JP)
Michizo Isono (JP)

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