Method for manufacturing a micromechanical component and a component that is manufactured in accordance with the method
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United States of America Patent
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Oct 4, 2005
Grant Date -
Jul 31, 2003
app pub date -
Dec 28, 2000
filing date -
Feb 10, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A method for manufacturing a micromechanical component, that has at least one hollow space and a functional element that is provided at least partially in the hollow space and/or a functional layer that is provided at least partially therein, and a micromechanical component that is manufactured in accordance with the method, are described. To reduce manufacturing costs, the functional element and/or the functional layer is provided with a first protective layer at least in an area that directly or indirectly borders on a first sacrificial layer, which temporarily occupies the space of the hollow space that is subsequently formed in one or a plurality of etching steps, the material of the first protective layer being selected such that at least one etching process and/or etching medium, which etches or dissolves the first sacrificial layer, either does not substantially attack the first protective layer or does so only at a reduced etching rate in comparison to the first sacrificial layer.
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