FORMING MULTIPLE AERIAL IMAGES IN A SINGLE LITHOGRAPHY EXPOSURE PASS

A set of the pulses of light in a light beam is passed through a mask toward a wafer during a single exposure pass; at least a first aerial image and a second aerial image on the wafer based on pulses of light in the set of pulses that pass through the mask is generated during a single exposure pass...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Thornes, Joshua Jon, Conley, Willard Earl, Rechtsteiner, Gregory Allen
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A set of the pulses of light in a light beam is passed through a mask toward a wafer during a single exposure pass; at least a first aerial image and a second aerial image on the wafer based on pulses of light in the set of pulses that pass through the mask is generated during a single exposure pass, the first aerial image is at a first plane on the wafer and the second aerial image is at a second plane on the wafer, the first plane and the second plane being spatially distinct from each other and separated from each other by a separation distance along the direction of propagation; and a three-dimensional semiconductor component is formed.