Inventor
UDAGAWA TETSU
JP15 patents
Patents
15 patentsUS6150689ANov 21, 2000
Semiconductor integrated circuit device and method for manufacturing the same
HITACHI LTD107 citations99
US5332922AJul 26, 1994
Multi-chip semiconductor package
HITACHI LTD158 citations98
US5426616AJun 20, 1995
Semiconductor IC device having a voltage conversion circuit which generates an internal supply voltage having value compensated for external supply voltage variations
HITACHI LTD95 citations96
US5701031ADec 23, 1997
Sealed stacked arrangement of semiconductor devices
HITACHI LTD58 citations95
US5150325ASep 22, 1992
Bi-CMOS semiconductor memory device, including improved layout structure and testing method
HITACHI LTD45 citations95
US6635918B1Oct 21, 2003
Semiconductor integrated circuit device and method for manufacturing the same
HITACHI LTD20 citations92
US6108264AAug 22, 2000
Dynamic type semiconductor memory device
HITACHI LTD34 citations92
US5862095AJan 19, 1999
Semiconductor memory having both a refresh operation cycle and a normal operation cycle and employing an address non-multiplex system
HITACHI LTD18 citations92
US5719815AFeb 17, 1998
Semiconductor memory having a refresh operation cycle and operating at a high speed and reduced power consumption in a normal operation cycle
HITACHI LTD22 citations92
US5276648AJan 4, 1994
Testing method for a semiconductor memory device
HITACHI LTD21 citations92
US4941129AJul 10, 1990
Semiconductor memory device
HITACHI LTD24 citations92
US5043947AAug 27, 1991
Semiconductor memory device
HITACHI LTD20 citations82
US6924525B2Aug 2, 2005
Semiconductor integrated circuit device including memory cell section having capacitor over bitline structure and with the memory and peripheral sections having contact plug structures containing a barrier film and effecting electrical contact with misfets of both memory and peripheral sections
HITACHI LTD9 citations74
US5506804AApr 9, 1996
Dynamic Random Access Type Semiconductor Device
HITACHI LTD9 citations73
USRE37539EFeb 5, 2002
Sealed stacked arrangement of semiconductor devices
HITACHI LTD12 citations72