Method for reducing etch-induced process uniformities by omitting deposition of an endpoint detection layer during patterning of stressed overlayers in a semiconductor device

During the patterning of respective contact etch stop layers having a different type of intrinsic stress, the deposition of an etch indicator layer between the first and the second contact etch stop layer may be omitted in order to avoid any undue effects of this layer during the subsequent processi...

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Bibliographische Detailangaben
Hauptverfasser: Richter, Ralf, Salz, Heike, Schaller, Matthias
Format: Patent
Sprache:eng
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