US Patent No: 6,473,321

Number of patents in Portfolio can not be more than 2000

Semiconductor integrated circuit and nonvolatile semiconductor memory

ALSO PUBLISHED AS: 20020001207

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Abstract

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For a semiconductor integrated circuit having an internal booster circuit such as a flash memory, voltage booster circuits capable of generating a boosted voltage 10 times or more as high as a relatively low source voltage is to be realized. Charge pumps for carrying out first stage voltage boosting on the basis of a source voltage are configured of parallel capacity type units, and charge pumps for carrying out second stage voltage boosting on the basis of the boosted voltage generated by the first charge pumps are configured of serial capacity type units.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HITACHI ULSI SYSTEMS CO., LTD.TOKYO291
RENESAS ELECTRONICS CORPORATIONTOKYO14174

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishii, Tatsuya Koganei, JP 162 1558
Kishimoto, Jiro Yokohama, JP 31 58
Kubono, Shoji Ome, JP 59 495
Noda, Satoshi Ome, JP 107 615
Ogino, Takashi Ebina, JP 135 326
Sato, Hiroshi Chiba, JP 909 3418481

Cited Art Landscape

Patent Info (Count) # Cites Year
 
FLUKE CORPORATION (1)
5,491,623 Voltage multiplier using switched capacitance technique 22 1994
 
HYUNDAI ELECTRONICS INDUSTRIES CO., LTD. (1)
5,594,380 Bootstrap circuit and data output buffer having the bootstrap circuit 30 1995
 
INTEL CORPORATION (1)
5,363,335 Nonvolatile memory with automatic power supply configuration 25 1993
 
KABUSHIKI KAISHA TOSHIBA (1)
5,394,372 Semiconductor memory device having charge-pump system with improved oscillation means 22 1993
 
MAGNACHIP SEMICONDUCTOR, LTD. (1)
6,011,743 Charge pump circuit for memory device 10 1998
 
NATIONAL SEMICONDUCTOR CORPORATION (1)
5,280,420 Charge pump which operates on a low voltage power supply 93 1992
 
RENESAS ELECTRONICS CORPORATION (1)
6,008,690 Booster circuit 39 1998
 
SGS-THOMSON MICROELECTRONICS S.R.L. (1)
5,754,476 Negative charge pump circuit for electrically erasable semiconductor memory devices 42 1996

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
CYPRESS SEMICONDUCTOR CORPORATION (6)
7,173,477 Variable capacitance charge pump system and method 10 2004
8,089,822 On-chip power-measurement circuit using a low drop-out regulator 0 2007
8,040,175 Supply regulated charge pump system 1 2008
7,746,160 Substrate bias feedback scheme to reduce chip leakage power 4 2009
8,283,972 Substrate bias feedback scheme to reduce chip leakage power 0 2011
8,587,365 Substrate bias feedback scheme to reduce chip leakage power 0 2012
 
CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC. (4)
6,967,523 Cascaded charge pump power supply with different gate oxide thickness transistors 12 2001
7,839,689 Power supplies in flash memory devices and systems 2 2008
8,064,260 Power supplies in flash memory devices and systems 1 2010
8,351,265 Power supplies in flash memory devices and systems 0 2011
 
SPANSION LLC (4)
7,113,442 Non-volatile semiconductor memory, semiconductor device and charge pump circuit 1 2005
7,881,142 Storage device and control method thereof 0 2006
7,633,824 Charge pump to supply voltage bands 3 2008
7,791,961 Semiconductor device and method for boosting word line 0 2009
 
SYMBOL TECHNOLOGIES, INC. (4)
6,549,064 Efficient charge pump apparatus 64 2002
7,928,843 Method, system, and apparatus for communications in a RFID system 0 2005
7,564,358 Charge pump apparatus and method used in an identification tag 2 2006
7,965,189 Radio frequency identification architecture 1 2007
 
FUJITSU SEMICONDUCTOR LIMITED (2)
8,080,873 Semiconductor device, semiconductor package, and method for testing semiconductor device 1 2005
8,233,347 Semiconductor memory, semiconductor device, and system 0 2009
 
HYNIX SEMICONDUCTOR INC. (2)
7,098,727 Boosting circuit 0 2004
7,233,193 High voltage switching circuit of a NAND type flash memory device 4 2005
 
RENESAS ELECTRONICS CORPORATION (2)
6,781,890 Nonvolatile memory and processing system 6 2002
8,582,366 Semiconductor device using charge pump circuit 0 2012
 
SAMSUNG ELECTRONICS CO., LTD. (2)
7,495,989 Portable data storage apparatus 0 2006
7,518,939 Portable data storage apparatus 1 2007
 
STMICROELECTRONICS S.R.L. (2)
7,251,705 Embeddable flash memory system for non-volatile storage of code, data and bit-streams for embedded FPGA configurations 3 2004
7,576,591 Charge pump system and corresponding method for managing voltage generation 3 2007
 
INTELLECTUAL PROPERTIES I KFT. (1)
6,947,322 Semiconductor memory device 9 2003
 
QIMONDA AG (1)
7,355,468 Voltage generator circuit, method for providing an output voltage and electronic memory device 1 2006
 
SEIKO EPSON CORPORATION (1)
7,561,220 Electro-optical device and manufacturing method thereof, electronic apparatus, and capacitor 0 2006

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