Inventor
IIZUKA HIROHISA
JP21 patents
Patents
21 patentsUS6222225B1Apr 24, 2001
Semiconductor device and manufacturing method thereof
TOSHIBA KK176 citations99
US7196370B2Mar 27, 2007
Nonvolatile semiconductor memory device having trench-type isolation region, and method of fabricating the same
TOSHIBA KK27 citations92
US6828624B1Dec 7, 2004
Nonvolatile semiconductor memory device covered with insulating film which is hard for an oxidizing agent to pass therethrough
TOSHIBA KK33 citations92
US6828627B2Dec 7, 2004
Semiconductor device
TOSHIBA KK23 citations92
US6703669B1Mar 9, 2004
Semiconductor device having serially connected memory cell transistors provided between two current terminals
TOSHIBA KK23 citations92
US6639296B2Oct 28, 2003
Semiconductor device and method of manufacturing the same
TOSHIBA KK13 citations92
US6462373B2Oct 8, 2002
Nonvolatile semiconductor memory device having tapered portion on side wall of charge accumulation layer
TOSHIBA KK27 citations92
US6413809B2Jul 2, 2002
Method of manufacturing a non-volatile memory having an element isolation insulation film embedded in the trench
TOSHIBA KK27 citations92
US6274434B1Aug 14, 2001
Method of making memory cell with shallow trench isolation
TOSHIBA KK22 citations92
US7227781B2Jun 5, 2007
Semiconductor device provided with NAND strings and select gates having different gate lengths
TOSHIBA KK14 citations84
US7795667B2Sep 14, 2010
Semiconductor memory preventing an electric short circuit between a word line and a semiconductor substrate, and manufacturing method for the semiconductor memory
TOSHIBA KK7 citations74
US7364951B2Apr 29, 2008
Nonvolatile semiconductor memory device and method for manufacturing the same
TOSHIBA KK5 citations73
US7095085B2Aug 22, 2006
Nonvolatile semiconductor memory device and method for manufacturing the same
TOSHIBA KK5 citations73
US6828648B2Dec 7, 2004
Semiconductor device and method of manufacturing the same
TOSHIBA KK7 citations73
US6747311B2Jun 8, 2004
Nonvolatile semiconductor memory device and method for manufacturing the same
TOSHIBA KK11 citations73
US6288942B1Sep 11, 2001
Nonvolatile semiconductor storage device and its manufacturing method
TOSHIBA KK5 citations63
US7782671B2Aug 24, 2010
Semiconductor device and method of manufacturing the same
TOSHIBA KK5 citations62
US7297599B2Nov 20, 2007
Method of fabricating semiconductor device
TOSHIBA KK6 citations62
US7195968B2Mar 27, 2007
Method of fabricating semiconductor device
TOSHIBA KK5 citations62
US6117729ASep 12, 2000
Nonvolatile semiconductor storage device and its manufacturing method
TOSHIBA KK0 citations52
US7238975B2Jul 3, 2007
Nonvolatile semiconductor memory device and manufacturing method therefor
TOSHIBA KK0 citations40