Patent ID: 11939672
Assignee: THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 10:
11. A method of fabricating a plate structure comprising:
depositing a first layer of aluminum oxide (Al2O3) on a first side of a substrate;
depositing a layer of sacrificial layer of amorphous silicon on top of the layer of the aluminum oxide;
etching the layer of amorphous silicon to form a hexagonal honeycomb pattern;
depositing a second layer of aluminum oxide (Al2O3) on the etched layer of amorphous silicon;
etching the second layer of aluminum oxide to at least create through holes to the layer of amorphous silicon;
removing the amorphous silicon and suspending the patterned first and second layers of aluminum oxide; and
using plasma-enhanced chemical vapor deposition to deposit a thin film on both sides of the patterned first and second layers of aluminum oxide.