Title:
SEMICONDUCTOR DEVICE HAVING A BYTE-ERASABLE EEPROM MEMORY
Document Type and Number:
WIPO Patent Application WO2003047163
Kind Code:
A3
Abstract:
The invention relates to a semiconductor device having a byte-erasable EEPROM memory comprising a matrix of rows and columns of memory cells. In order to provide a semiconductor device having a byte-erasable EEPROM which has a reduced chip size and increased density and which is suitable for low-power applications it is proposed according to the present invention that the memory cells each comprise a selection transistor having a selection gate and, arranged in series therewith, a memory transistor having a floating gate and a control gate, the selection transistor being further connected to a source line of the byte-erasable EEPROM memory, which source line is common for a plurality of memory cells, and the memory transistor being further connected to a bit line of the byte-erasable EEPROM memory, wherein the columns of memory cells are located in separate p-type wells separated by n-type wells. Preferably, high voltage switching elements are provided for dividing global control gates into local control gates for each column of bytes.
Inventors:
DORMANS GUIDO J M (NL)
VERHAAR ROBERTUS D J (NL)
GARBE JOACHIM C H (NL)
VERHAAR ROBERTUS D J (NL)
GARBE JOACHIM C H (NL)
Application Number:
PCT/IB2002/004473
Publication Date:
November 27, 2003
Filing Date:
October 24, 2002
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
DORMANS GUIDO J M (NL)
VERHAAR ROBERTUS D J (NL)
GARBE JOACHIM C H (NL)
DORMANS GUIDO J M (NL)
VERHAAR ROBERTUS D J (NL)
GARBE JOACHIM C H (NL)
International Classes:
G11C16/04; H01L21/8247; G11C16/02; H01L27/115; H01L29/788; H01L29/792; H04L12/00; (IPC1-7): G11C16/04; H01L27/115
Domestic Patent References:
WO2000075994A1 | 2000-12-14 |
Foreign References:
US5455790A | 1995-10-03 | |||
US5912842A | 1999-06-15 | |||
EP0741415A1 | 1996-11-06 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 04 31 August 2000 (2000-08-31)
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