METHOD OF MAKING 3-DIMENSIONAL NEURAL PROBES HAVING ELECTRICAL AND CHEMICAL INTERFACES

A method of fabricating a three-dimensional neural probe includes the steps of: growing thermal oxide layer; depositing a layer of Au/Cr on the thermal oxide layer; patterning the layer of Au/Cr; depositing a layer of parylene C; etching the thermal oxide layer to release a plurality of islands; and...

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Bibliographische Detailangaben
Hauptverfasser:	LI YUEFA, XU YONG
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTROTHERAPY HUMAN NECESSITIES HYGIENE INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAGNETOTHERAPY MEDICAL OR VETERINARY SCIENCE METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE RADIATION THERAPY ULTRASOUND THERAPY
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Beschreibung
Zusammenfassung:	A method of fabricating a three-dimensional neural probe includes the steps of: growing thermal oxide layer; depositing a layer of Au/Cr on the thermal oxide layer; patterning the layer of Au/Cr; depositing a layer of parylene C; etching the thermal oxide layer to release a plurality of islands; and folding the islands onto one another in stacked relation. The layer of Au/Cr is formed by an evaporation process, and the layer of parylene C is deposited to a thickness of approximately 8 μm. DRIE is used to perform the etching, and HF is used to remove the thermal oxide. A spacer is disposed intermediate of two of the islands.