发明名称 Method for the compensation of deviations occurring as a result of manufacture in the manufacture of micromechanical elements and their use
摘要 The invention relates to a method for the compensation of deviations occurring as a result of manufacture in the manufacture of micromechanical elements and their use which should be deflected at a resonant frequency. It is therefore the object of the invention to compensate deviations which occur due to manufacture and which have an influence on the resonant frequency of micromechanical elements in a simple and cost-effective manner. In accordance with the invention, a procedure is followed such that additional trenches and/or recesses are formed at the deflectable element simultaneously with the forming of the trenches by dry etching with which at least one spring element, a deflectable element and optionally also a frame element of micromechanical elements are formed. The trenches and recesses can thereby be formed under the same respective process parameters at the respective micromechanical element or at all micromechanical elements of a batch. A removal of material during etching, preferably dry etching, therefore takes place under the same etching conditions so that the respectively removed mass at trenches and/or recesses is influenced in the same manner by the etching process parameters.
申请公布号 US7951635(B2) 申请公布日期 2011.05.31
申请号 US20070850168 申请日期 2007.09.05
申请人 FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V. 发明人 KLOSE THOMAS;SCHENK HARALD;WOLTER ALEXANDER
分类号 B81C99/00;H01L21/00 主分类号 B81C99/00
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