Method of fabricating a surface probing device and probing device produced thereby
AssigneeVeeco Instruments Inc.
InventorStephen C. Minne
Life of this patent
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Abstract
A method of making a probe having a cantilever and a tip include providing a substrate having a surface and forming a tip extending substantially orthogonally from the surface. The method includes depositing an etch stop layer on the substrate, whereby the etch stop layer protects the tip during process. A silicon nitride layer is then deposited on the etch stop layer. An etch operation is used to release the cantilever and expose the etch stop layer protecting the tip. Preferably, the tip is silicon and the cantilever supporting the tip, preferably via the etch stop layer, is silicon nitride. A probe for a surface analysis instrument made according to the method includes a tip and a silicon nitride cantilever having a thickness defined during the deposition process.
Claims19
A probing device comprising:
- a silicon tip;
- a silicon nitride cantilever;
- wherein said tip is supported by said cantilever via an oxide layer;
- and
- wherein said oxide layer is deposited on a substrate upon which said tip is formed so as to sharpen said tip.
A probe for a surface analysis instrument, the probe comprising:
- a tip;
- a silicon nitride cantilever, said silicon nitride cantilever formed using a deposition process;
- and
- wherein said tip is supported by said cantilever via only an oxide layer, and wherein said oxide layer is deposited on said tip so as to protect said tip during probe fabrication.
Dependencies are inferred from the claim text.