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- W1876337511 endingPage "N5053" @default.
- W1876337511 startingPage "N5041" @default.
- W1876337511 abstract "The ability to achieve near-atomic precision in etching different materials when transferring lithographically defined templates is a requirement of increasing importance for nanoscale structure fabrication in the semiconductor and related industries. The use of ultra-thin gate dielectrics, ultra thin channels, and sub-20 nm film thicknesses in field effect transistors and other devices requires near-atomic scale etching control and selectivity. There is an emerging consensus that as critical dimensions approach the sub-10 nm scale, the need for an etching method corresponding to Atomic Layer Deposition (ALD), i.e. Atomic Layer Etching (ALE), has become essential, and that the more than 30-year quest to complement/replace continuous directional plasma etching (PE) methods for critical applications by a sequence of individual, self-limited surface reaction steps has reached a crucial stage. A key advantage of this approach relative to continuous PE is that it enables optimization of the individual steps with regard to reactant adsorption, self-limited etching, selectivity relative to other materials, and damage of critical surface layers. In this overview we present basic approaches to ALE of materials, discuss similarities/crucial differences relative to thermal and plasma-enhanced ALD, and then review selected results on ALE of materials aimed at pattern transfer. The overview concludes with a discussion of opportunities and challenges ahead." @default.
- W1876337511 created "2016-06-24" @default.
- W1876337511 creator A5058031028 @default.
- W1876337511 creator A5088251109 @default.
- W1876337511 creator A5089034106 @default.
- W1876337511 date "2015-01-01" @default.
- W1876337511 modified "2023-10-18" @default.
- W1876337511 title "Atomic Layer Etching at the Tipping Point: An Overview" @default.
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