Semiconductor integrated circuit and nonvolatile semiconductor memory

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO

6473321

APP PUB NO

20020001207A1

SERIAL NO

09883237

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ATTORNEY / AGENT: (SPONSORED)

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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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HITACHI ULSI SYSTEMS CO., LTD.TOKYO91
RENESAS ELECTRONICS CORPORATIONTOKYO12632

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishii, Tatsuya Koganei, JP 114 1779
Kishimoto, Jiro Hamura, JP 23 85
Kubono, Shoji Ome, JP 36 675
Noda, Satoshi Ome, JP 76 893
Ogino, Takashi Hamura, JP 92 484
Sato, Hiroshi Iruma, JP 749 7197

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SGS-THOMSON MICROELECTRONICS S.R.L. (1)
* 5754476 Negative charge pump circuit for electrically erasable semiconductor memory devices 44 1996
 
National Semiconductor Corporation (1)
5280420 Charge pump which operates on a low voltage power supply 94 1992
 
INTEL CORPORATION (1)
* 5363335 Nonvolatile memory with automatic power supply configuration 25 1993
 
RENESAS ELECTRONICS CORPORATION (1)
* 6008690 Booster circuit 49 1998
 
KABUSHIKI KAISHA TOSHIBA (1)
* 5394372 Semiconductor memory device having charge-pump system with improved oscillation means 32 1993
 
FLUKE CORPORATION (1)
* 5491623 Voltage multiplier using switched capacitance technique 23 1994
 
MAGNACHIP SEMICONDUCTOR, LTD. (1)
* 6011743 Charge pump circuit for memory device 10 1998
 
HYUNDAI ELECTRONICS INDUSTRIES CO., LTD. (1)
* 5594380 Bootstrap circuit and data output buffer having the bootstrap circuit 31 1995
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2006/0249,587 Portable data storage apparatus 4 2006
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 2007/0236,976 Open loop single output high efficiency AC-DC regulated power supply 0 2006
 
CYPRESS SEMICONDUCTOR CORPORATION (12)
* 7173477 Variable capacitance charge pump system and method 10 2004
* 7881142 Storage device and control method thereof 0 2006
* 2007/0076,492 Storage device and control method thereof 5 2006
7633824 Charge pump to supply voltage bands 5 2008
* 2008/0205,134 Charge pump to supply voltage bands 6 2008
8040175 Supply regulated charge pump system 7 2008
* 2009/0167,418 Supply Regulated Charge Pump System 37 2008
7746160 Substrate bias feedback scheme to reduce chip leakage power 6 2009
* 7791961 Semiconductor device and method for boosting word line 0 2009
* 2009/0175,096 SEMICONDUCTOR DEVICE AND METHOD FOR BOOSTING WORD LINE 6 2009
8283972 Substrate bias feedback scheme to reduce chip leakage power 0 2011
8587365 Substrate bias feedback scheme to reduce chip leakage power 1 2012
 
SEIKO EPSON CORPORATION (1)
* 7561220 Electro-optical device and manufacturing method thereof, electronic apparatus, and capacitor 0 2006
 
POLARIS INNOVATIONS LIMITED (2)
7355468 Voltage generator circuit, method for providing an output voltage and electronic memory device 2 2006
* 2007/0296,486 VOLTAGE GENERATOR CIRCUIT, METHOD FOR PROVIDING AN OUTPUT VOLTAGE AND ELECTRONIC MEMORY DEVICE 0 2006
 
SYMBOL TECHNOLOGIES, LLC (5)
* 6549064 Efficient charge pump apparatus 70 2002
7928843 Method, system, and apparatus for communications in a RFID system 2 2005
7564358 Charge pump apparatus and method used in an identification tag 3 2006
* 2006/0202,828 Efficient charge pump apparatus and method 2 2006
7965189 Radio frequency identification architecture 4 2007
 
SAMSUNG ELECTRONICS CO., LTD. (5)
* 6947322 Semiconductor memory device 10 2003
* 2004/0114,430 Semiconductor memory device 0 2003
* 2006/0004,972 Semiconductor memory device and method of testing the same 0 2005
* 7495989 Portable data storage apparatus 0 2006
* 7518939 Portable data storage apparatus 1 2007
 
APPLE INC. (3)
8848463 Integrated circuit with separate supply voltage for memory that is different from logic circuit supply voltage 1 2013
9129708 Integrated circuit with separate supply voltage for memory that is different from logic circuit supply voltage 1 2014
9343139 Integrated circuit with separate supply voltage for memory that is different from logic circuit supply voltage 0 2015
 
SOCIONEXT INC. (4)
* 8080873 Semiconductor device, semiconductor package, and method for testing semiconductor device 1 2005
* 2005/0200,005 Semiconductor device, semiconductor package, and method for testing semiconductor device 1 2005
* 8233347 Semiconductor memory, semiconductor device, and system 0 2009
* 2010/0142,306 SEMICONDUCTOR MEMORY, SEMICONDUCTOR DEVICE, AND SYSTEM 5 2009
 
MONTEREY RESEARCH, LLC (3)
* 7113442 Non-volatile semiconductor memory, semiconductor device and charge pump circuit 5 2005
* 2005/0254,313 Non-volatile semiconductor memory, semiconductor device and charge pump circuit 0 2005
8089822 On-chip power-measurement circuit using a low drop-out regulator 1 2007
 
STMICROELECTRONICS S.R.L. (3)
* 7251705 Embeddable flash memory system for non-volatile storage of code, data and bit-streams for embedded FPGA configurations 3 2004
* 2005/0005,055 Embeddable flash memory system for non-volatile storage of code, data and bit-streams for embedded FPGA configurations 7 2004
* 7576591 Charge pump system and corresponding method for managing voltage generation 3 2007
 
RENESAS ELECTRONICS CORPORATION (6)
* 6781890 Nonvolatile memory and processing system 6 2002
* 2003/0111,682 Nonvolatile memory and processing system 4 2002
* 8582366 Semiconductor device using charge pump circuit 0 2012
* 2013/0058,167 SEMICONDUCTOR DEVICE USING CHARGE PUMP CIRCUIT 0 2012
* 9201439 Semiconductor device 0 2013
* 2013/0241,515 SEMICONDUCTOR DEVICE 2 2013
 
HYNIX SEMICONDUCTOR INC. (4)
* 7098727 Boosting circuit 0 2004
* 2005/0093,487 Boosting circuit 0 2004
* 7233193 High voltage switching circuit of a NAND type flash memory device 5 2005
* 2006/0044,042 High voltage switching circuit of a NAND type flash memory device 0 2005
 
CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC. (6)
* 6967523 Cascaded charge pump power supply with different gate oxide thickness transistors 21 2001
* 2002/0101,744 Charge pump power supply 8 2001
7839689 Power supplies in flash memory devices and systems 2 2008
* 2009/0278,591 POWER SUPPLIES IN FLASH MEMORY DEVICES AND SYSTEMS 5 2008
8064260 Power supplies in flash memory devices and systems 1 2010
8351265 Power supplies in flash memory devices and systems 0 2011
* Cited By Examiner