Memory device, data recording method and IC tag
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United States of America Patent
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Jun 21, 2011
Grant Date -
May 7, 2009
app pub date -
May 18, 2007
filing date -
May 31, 2006
priority date (Note) -
Expired
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Abstract
A memory device of the present invention is characterized by a memory device for storing information by making use of molecular alignment of a liquid crystal compound in a liquid crystalline state formed by spot irradiation with a laser beam to carry out a selective heat treatment on an electroconductive liquid crystal semiconductor material layer containing a liquid crystal compound, comprising: a first electrode group including a plurality of linear electrodes which are parallel to each other; an electroconductive liquid crystal semiconductor material layer formed in such a manner that the layer covers the first electrode group, the layer containing a liquid crystal compound having a long linear conjugate structural moiety and exhibiting a smectic phase as a liquid crystal phase; and a second electrode group formed on the electroconductive liquid crystal semiconductor material layer and including a plurality of linear transparent electrodes being parallel to each other and extend in a direction intersecting with the first electrode group.
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