Detachable substrate or detachable structure and method for the production thereof
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United States of America Patent
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May 11, 2010
Grant Date -
Feb 10, 2005
app pub date -
Apr 11, 2002
filing date -
Apr 13, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to the preparation of a thin layer comprising a step in which an interface is created between a layer used to create said thin layer and a substrate, characterized in that said interface is made in such a way that it is provided with at least one first zone (Z1) which has a first level of mechanical strength, and a second zone (Z2) which has a level of mechanical strength which is substantially lower than that of the first zone. Said interface can be created by glueing surfaces which are prepared in a differentiated manner, by a layer which is buried and embrittled in a differentiated manner in said zones, or by an intermediate porous layer.
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