Claims
- 1. A method comprising:
forming a column on a silicon substrate; depositing a membrane on the column; removing a portion of the column after depositing the membrane; and fracturing a portion of the membrane to form a nozzle end.
- 2. The method of claim 1 wherein fracturing includes inducing stress in the membrane.
- 3. The method of claim 1 wherein forming the column includes forming a faceted base.
- 4. The method of claim 1 wherein forming the column includes forming a tip.
- 5. The method of claim 1 wherein forming the column includes performing anisotropic wet etching.
- 6. The method of claim 1 wherein removing the portion of the column includes performing reactive ion etching (RIE).
- 7. The method of claim 1 further comprising forming a flexible structure in the silicon substrate proximate the column.
- 8. The method of claim 7 wherein forming the flexible structure includes forming a corrugated surface.
- 9. The method of claim 7 further comprising coupling at least one mechanical actuator to the membrane.
- 10. The method of claim 1 further comprising forming a faceted cavity adapted for receiving a single cell.
- 11. A method comprising:
forming a column on a silicon substrate, the column having an atomically sharp tip; depositing a membrane on the column; removing a portion of the column after depositing the membrane; and etching the membrane to form a nozzle end.
- 12. A device comprising:
a membrane formed by depositing a conformal layer of silicon nitride on a silicon post oriented perpendicular to a silicon substrate, the membrane having an orifice; and a fluid reservoir in fluidic communication with the orifice.
- 13. The device of claim 12 further comprising a cell retention cavity.
- 14. A method comprising:
transferring a pattern of dots onto a silicon substrate; oxidizing the substrate to form an atomically sharp silicon tip corresponding to each dot; creating a shaft for each silicon tip; forming a pedestal at the base of each shaft; coating the silicon tips with a membrane material; and removing a portion of the silicon from each tip.
- 15. The method of claim 14 further comprising forming an opening in each tip.
RELATED APPLICATION
[0001] This document claims priority to related provisional patent application serial No. 60/300,013, filed on Jun. 21, 2001 and titled NANO SYRINGE ARRAY AND METHOD, herein incorporated by reference.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60300013 |
Jun 2001 |
US |