Methods for fabricating three-dimensional nano-scale structures and devices

A method of fabricating a 3 dimensional structure, includes: forming a stack of at least 2 layers of photo resist material having different photo resist sensitivities upon a substrate; exposing the stack to beams of electromagnetic radiation or charged particles of different dosages to achieve selec...

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Bibliographische Detailangaben
Hauptverfasser: HARTLEY JOHN G, BONAM RAVI K
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method of fabricating a 3 dimensional structure, includes: forming a stack of at least 2 layers of photo resist material having different photo resist sensitivities upon a substrate; exposing the stack to beams of electromagnetic radiation or charged particles of different dosages to achieve selective solubility along a height of the stack; and dissolving soluble portions of the stack with a solvent to produce a 3 dimensional structure of desired geometry.