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Patent Searching and Data


Title:
SEMICONDUCTOR DEVICE, DATA WRITING METHOD OF SEMICONDUCTOR DEVICE, AND DATA READING METHOD OF SEMICONDUCTOR DEVICE
Document Type and Number:
Japanese Patent JP2008146814
Kind Code:
A
Abstract:

To prevent a deterioration of each element in a semiconductor device which writes data by giving a high load to the memory elements to cause a chemical reaction, by lightening a load imposed on circuit elements and memory elements, which is caused by applying a load.

Such a control is made in a memory section 103 that the data same as the input data are written as memory data when the memory data of an address just before are in a first load condition, and the input data are reversed and written as the memory data when the memory data of the address just before are in a second load condition applying a voltage higher than that of the first load condition.


Inventors:
ITO MASANORI
Application Number:
JP2007000294260
Publication Date:
June 26, 2008
Filing Date:
November 13, 2007
Export Citation:
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Assignee:
SEMICONDUCTOR ENERGY LAB
International Classes:
G11C13/00; H01L21/8242; H01L21/8247; H01L27/10; H01L27/105; H01L27/108; H01L27/115; H01L29/788; H01L29/792
Domestic Patent References:
JPH09167118A1997-06-24
JPH05298894A1993-11-12