VORRICHTUNG UND VERFAHREN ZUM ANISOTROPEN DRIE-ÄTZEN MIT FLUORGASMISCHUNG

An etching method for anisotropically structuring a substrate by means of deep reactive-ion etching (DRIE) includes several alternating successive etching steps and passivation steps. According to the invention, a fluorine gas mixture having a proportion of more than 25% up to and including 40% of f...

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1. Verfasser:	Wieland, Robert
Format:	Patent
Sprache:	ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY MICROSTRUCTURAL TECHNOLOGY PERFORMING OPERATIONS PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTUREOR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS SEMICONDUCTOR DEVICES TRANSPORTING
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creator	Wieland, Robert
description	An etching method for anisotropically structuring a substrate by means of deep reactive-ion etching (DRIE) includes several alternating successive etching steps and passivation steps. According to the invention, a fluorine gas mixture having a proportion of more than 25% up to and including 40% of fluorine, a proportion of 1% to 50% of nitrogen and a proportion of 30% up to and including 60% of a noble gas is used for etching. In addition, the invention concerns the use of such a fluorine gas mixture as well as a corresponding apparatus for structuring a substrate by means of the inventive fluorine gas mixture.
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subjects	BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY MICROSTRUCTURAL TECHNOLOGY PERFORMING OPERATIONS PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTUREOR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS SEMICONDUCTOR DEVICES TRANSPORTING
title	VORRICHTUNG UND VERFAHREN ZUM ANISOTROPEN DRIE-ÄTZEN MIT FLUORGASMISCHUNG
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