Inventor
OKONOGI KENSUKE
JP26 patents
⚠️ This page may combine multiple inventors who share the name “OKONOGI KENSUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
14 patentsUS5773152AJun 30, 1998
SOI substrate having a high heavy metal gettering effect for semiconductor device
NEC CORP132 citations98
US6448157B1Sep 10, 2002
Fabrication process for a semiconductor device
NEC CORP32 citations92
US6323109B1Nov 27, 2001
Laminated SOI substrate and producing method thereof
NEC CORP50 citations92
US6004406ADec 21, 1999
Silicon on insulating substrate
NEC CORP24 citations92
US5970366AOct 19, 1999
Method of removing metallic contaminants from simox substrate
NEC CORP21 citations92
US5420064AMay 30, 1995
Method of manufacturing a dielectric isolation substrate
NEC CORP29 citations92
US5529947AJun 25, 1996
Semiconductor device with clad substrate and fabrication process therefor
NEC CORP19 citations84
US6057036AMay 2, 2000
Semiconductor substrate having a serious effect of gettering heavy metal and method of manufacturing the same
NEC CORP10 citations74
US5849102ADec 15, 1998
Method of cleaning a surface of a semiconductor substrate by a heat treatment in an inert gas atmosphere
NEC CORP9 citations74
US5798294AAug 25, 1998
Semiconductor substrate having a serious effect of gettering heavy metal and method of manufacturing the same
NEC CORP11 citations74
US5691231ANov 25, 1997
Method of manufacturing silicon on insulating substrate
NEC CORP13 citations74
US5374582ADec 20, 1994
Laminated substrate for semiconductor device and manufacturing method thereof
NEC CORP16 citations74
US5726089AMar 10, 1998
Semiconductor device and method for fabricating the same
NEC CORP3 citations63
US5872388AFeb 16, 1999
Semiconductor device and method for fabricating the same
NEC CORP0 citations52
ELPIDA MEMORY INC
10 patentsUS7846826B2Dec 7, 2010
Method of manufacturing a semiconductor device with multilayer sidewall
ELPIDA MEMORY INC14 citations84
US7666761B2Feb 23, 2010
Semiconductor device and manufacturing method thereof
ELPIDA MEMORY INC2 citations63
US7338876B2Mar 4, 2008
Method for manufacturing a semiconductor device
ELPIDA MEMORY INC3 citations63
US7151033B2Dec 19, 2006
Method for manufacturing a semiconductor device having a low junction leakage current
ELPIDA MEMORY INC2 citations63
US7129141B2Oct 31, 2006
Method for manufacturing a semiconductor device having a low junction leakage current
ELPIDA MEMORY INC4 citations63
US8704299B2Apr 22, 2014
Semiconductor device and manufacturing method thereof
ELPIDA MEMORY INC3 citations61
US7186632B2Mar 6, 2007
Method of fabricating a semiconductor device having a decreased concentration of phosphorus impurities in polysilicon
ELPIDA MEMORY INC5 citations60
US7737505B2Jun 15, 2010
Semiconductor device and method of forming the same
ELPIDA MEMORY INC0 citations52
US7700431B2Apr 20, 2010
Method for manufacturing a semiconductor device having polysilicon plugs
ELPIDA MEMORY INC0 citations52
US7632696B2Dec 15, 2009
Semiconductor chip with a porous single crystal layer and manufacturing method of the same
ELPIDA MEMORY INC0 citations48